Recent Advances in Photovoltaic-Trombe Wall System: A Review

*Omer K. Ahmed*

## **Abstract**

Management of energy consumption for building's air conditioning is a vital issue for resource saving and environmental protection. The use of solar energy to generate electricity by solar cells is essential nowadays. However, the disadvantage of solar panels is the elevated temperature in work, especially in the hot sunny climate that leads to efficiency decline. Also, there is a problem with heating during the night and cloudy days. For the last 20 years, there has been a rapid development in the field of integrated solar technologies. A hybrid PV/Trombe wall (PV/ TW) system suggested being an efficient and durable conversion system of solar energy. The design of the PV/TW system considered one of the focusing areas of the present research to make it more economically feasible. The idea of building the photovoltaic-Trombe wall has appeared as one of the green technologies. Several published works at that time are included for integrating PV/TW system. This chapter devoted to reviewing the theoretical and practical studies conducted on this system for developing and improving electrical and thermal performance.

**Keywords:** PV/Trombe wall, efficiency, building, review

## **1. Introduction**

Today mankind is facing the problem of severe shortage of power supply as a result of current consumption rate and low conventional energy reserves [1, 2]. Increased human activity has led to increased energy consumption and reduced conventional fuel reserves to dangerous levels, leading to the high price of world oil [3]. Scientists and researchers have begun to look for new sources of energy to replace conventional sources and replace it with a clean and environmentally friendly option [4]. Solar energy has been a priority for these concerns because it is cheap, is nonpolluting, and does not require high technology [5].

The passive solar heating system is a technique that generates thermal energy by collecting solar radiation and then moving it into the building naturally [6]. It is one of the most economical ways for solar energy utilization, which can reduce yearly heating demand by about 25% [7]. Among the passive solar heating systems that have been developed are solar roofs, solar chimneys, and a Trombe wall [8].

The Trombe wall is a method to use solar energy for heating without using any mechanical or electrical assistance, as shown in **Figure 1** [9]. The name of the Trombe wall was taken from a French scientist named Michel Trombe, who discovered in 1880 [10]. It is considered a simple and inexpensive solution that

uses solar energy in heating, which reduces heat load up to 47% [11]. A Trombe wall is always located on the southern face of buildings in the northern hemisphere to increase solar energy throughout the year. It consists of a wall of concrete or bricks for heat storage, and the wall is coated with black paint to increase the absorption of solar radiation. There are layers of glass at 5–10 cm distance from the concrete wall to increase the intensity of solar radiation. A Trombe wall is covered in the summer to prevent excessive warming [12]. The wall has two openings at the top and bottom to circulate the air. Solar heat is transferred from the Trombe wall into the room by convection heat transfer and conduction. Cold air passes from the lower opening of the wall, then the air is heated through the channel and moves into the room through the upper vent. Meanwhile, heat transfer through the thermal wall needs more time to move into the room. Although a commercial PV system is widely available, however, further research and development are necessary to improve efficiency and reduce costs. Passive solar techniques can reduce yearly heating demand by about 25%. Different architectural devices such as Trombe walls, solar roofs, solar chimneys, and others are used in buildings [13]. In the last years, modern technologies introduced that use solar cells to generate electricity. The photovoltaic cell can be integrated with buildings such as the PV-Trombe wall [14]. The increase in the solar cell temperature leads to lower efficiency as shown in **Figure 2**.

**57**

**Figure 3.**

*Photovoltaic-thermal system integrated on the roof.*

*Recent Advances in Photovoltaic-Trombe Wall System: A Review*

**2. Building-integrated photovoltaic/thermal systems**

1.BIPV/T system is physically attached to buildings.

energy use [15]. Generally, a BIPV/T system has the following features:

In early 1990s, the idea of building-integrated photovoltaic/thermal (BIPV/T) systems emerged. It has attracted increasing attention since 2000 because of its potential to facilitate the design of net-zero energy buildings by improving solar

3.The system provides thermal energy ready to be collected and used by the

**Figure 3** shows the PV modules installed on the roof of a room with an air duct at an angle of 34° to the horizontal, which corresponds to the latitude of Srinagar,

Chow et al. [16] presented a comparative study of three different parameters for BIPV technology in China. The results showed no significant difference in electricity production as the indoor space with 24-hour temperature supplied continuous cooling of the solar cells through the outer façade. For semi-equatorial climate, PV/C and PV/T systems are better than the BIPV system because of their ability to limit the increase of space temperature. The PV/C system considered a better option because of its effectiveness in reducing the cooling power of elimination and has a

Hu et al. [17] compared three types of systems [i.e., solar cells affixed to glass (BIPVGTW), solar cell attached to the mass wall (BIPVMTW), and PV-blindintegrated Trombe wall system (BIPVBTW)] as illustrated in **Figure 4**, and the results showed that the electrical performance of BIPVGTW was better and the system adopted electrifying performance at the blindness angle. In terms of thermal performance, the BIPVBTW system increased room temperature during the winter season higher than other systems. The BIPVGTW system is better than BIPVBTW

Nagano et al. [18] studied the experimental thermal/PV hybrid exterior wallboards that incorporate PV cells, as shown in **Figure 5**. The clapboard-shaped hybrid wallboards permit modular assembly that is more suitable for building applications than former PV systems. Solar heat collected in the form of heated air

*DOI: http://dx.doi.org/10.5772/intechopen.90618*

2.The system produces electricity.

building.

India.

simple design.

and BIPVMTW systems.

**Figure 2.** *Electrical efficiency as a function of solar cell temperature.*

## **2. Building-integrated photovoltaic/thermal systems**

In early 1990s, the idea of building-integrated photovoltaic/thermal (BIPV/T) systems emerged. It has attracted increasing attention since 2000 because of its potential to facilitate the design of net-zero energy buildings by improving solar energy use [15]. Generally, a BIPV/T system has the following features:

1.BIPV/T system is physically attached to buildings.

2.The system produces electricity.

*Renewable Energy - Technologies and Applications*

efficiency as shown in **Figure 2**.

uses solar energy in heating, which reduces heat load up to 47% [11]. A Trombe wall is always located on the southern face of buildings in the northern hemisphere to increase solar energy throughout the year. It consists of a wall of concrete or bricks for heat storage, and the wall is coated with black paint to increase the absorption of solar radiation. There are layers of glass at 5–10 cm distance from the concrete wall to increase the intensity of solar radiation. A Trombe wall is covered in the summer to prevent excessive warming [12]. The wall has two openings at the top and bottom to circulate the air. Solar heat is transferred from the Trombe wall into the room by convection heat transfer and conduction. Cold air passes from the lower opening of the wall, then the air is heated through the channel and moves into the room through the upper vent. Meanwhile, heat transfer through the thermal wall needs more time to move into the room. Although a commercial PV system is widely available, however, further research and development are necessary to improve efficiency and reduce costs. Passive solar techniques can reduce yearly heating demand by about 25%. Different architectural devices such as Trombe walls, solar roofs, solar chimneys, and others are used in buildings [13]. In the last years, modern technologies introduced that use solar cells to generate electricity. The photovoltaic cell can be integrated with buildings such as the PV-Trombe wall [14]. The increase in the solar cell temperature leads to lower

**56**

**Figure 2.**

*Electrical efficiency as a function of solar cell temperature.*

**Figure 1.**

*Classical Trombe wall.*

3.The system provides thermal energy ready to be collected and used by the building.

**Figure 3** shows the PV modules installed on the roof of a room with an air duct at an angle of 34° to the horizontal, which corresponds to the latitude of Srinagar, India.

Chow et al. [16] presented a comparative study of three different parameters for BIPV technology in China. The results showed no significant difference in electricity production as the indoor space with 24-hour temperature supplied continuous cooling of the solar cells through the outer façade. For semi-equatorial climate, PV/C and PV/T systems are better than the BIPV system because of their ability to limit the increase of space temperature. The PV/C system considered a better option because of its effectiveness in reducing the cooling power of elimination and has a simple design.

Hu et al. [17] compared three types of systems [i.e., solar cells affixed to glass (BIPVGTW), solar cell attached to the mass wall (BIPVMTW), and PV-blindintegrated Trombe wall system (BIPVBTW)] as illustrated in **Figure 4**, and the results showed that the electrical performance of BIPVGTW was better and the system adopted electrifying performance at the blindness angle. In terms of thermal performance, the BIPVBTW system increased room temperature during the winter season higher than other systems. The BIPVGTW system is better than BIPVBTW and BIPVMTW systems.

Nagano et al. [18] studied the experimental thermal/PV hybrid exterior wallboards that incorporate PV cells, as shown in **Figure 5**. The clapboard-shaped hybrid wallboards permit modular assembly that is more suitable for building applications than former PV systems. Solar heat collected in the form of heated air

**Figure 3.** *Photovoltaic-thermal system integrated on the roof.*

#### **Figure 4.**

*Three models of BIPV Trombe wall systems. (A) BIPVGTW. (B) BIPVMTW. (C) BIPVBTW.*

#### **Figure 5.**

*The concept of a new type of hybrid wallboard.*

circulating in the air duct between the thermal insulation of the exterior walls and the composite wallboard.

### **3. Photovoltaic-Trombe wall (PV/TW)**

For the last 20 years, there has been a rapid development in the field of integrated solar technologies. The idea of building the photovoltaic-Trombe wall has appeared as one of the green technologies. The concept is to use solar cells with a Trombe wall to generate electricity as well as heating. The photovoltaic/thermal (PV/T) systems convert solar radiation into heat and electricity together, such as PV-Trombe wall (PV/TW) system.

The design of the PV/TW system is like the original design of the classical Trombe wall, just replacing the thermal wall by a solar cell, as shown in **Figure 6** [19]. They are less expensive, environmentally friendly, and more suitable for a given house or building, and it is more efficient than the separate solar thermal

**59**

**Figure 7.**

*Modified Photovoltaic-Trombe walls.*

**Figure 6.**

*Photovoltaic-Trombe wall.*

*Recent Advances in Photovoltaic-Trombe Wall System: A Review*

and electrical systems. Furthermore, the PV/TW system can contribute to the reduction in the consumption of fossil fuels for large combined production [20]. Several modifications were performed to improve the performance of PV/ TW. Verifying the thermal and electrical performance of the PV/TW system has been done by Ahmed et al. [21, 22]. The base configurations were modified to

*DOI: http://dx.doi.org/10.5772/intechopen.90618*

*Recent Advances in Photovoltaic-Trombe Wall System: A Review DOI: http://dx.doi.org/10.5772/intechopen.90618*

**Figure 6.** *Photovoltaic-Trombe wall.*

*Renewable Energy - Technologies and Applications*

circulating in the air duct between the thermal insulation of the exterior walls and

*Three models of BIPV Trombe wall systems. (A) BIPVGTW. (B) BIPVMTW. (C) BIPVBTW.*

For the last 20 years, there has been a rapid development in the field of integrated solar technologies. The idea of building the photovoltaic-Trombe wall has appeared as one of the green technologies. The concept is to use solar cells with a Trombe wall to generate electricity as well as heating. The photovoltaic/thermal (PV/T) systems convert solar radiation into heat and electricity together, such as

The design of the PV/TW system is like the original design of the classical Trombe wall, just replacing the thermal wall by a solar cell, as shown in **Figure 6** [19]. They are less expensive, environmentally friendly, and more suitable for a given house or building, and it is more efficient than the separate solar thermal

**58**

the composite wallboard.

*The concept of a new type of hybrid wallboard.*

**Figure 4.**

**Figure 5.**

**3. Photovoltaic-Trombe wall (PV/TW)**

PV-Trombe wall (PV/TW) system.

#### **Figure 7.** *Modified Photovoltaic-Trombe walls.*

and electrical systems. Furthermore, the PV/TW system can contribute to the reduction in the consumption of fossil fuels for large combined production [20].

Several modifications were performed to improve the performance of PV/ TW. Verifying the thermal and electrical performance of the PV/TW system has been done by Ahmed et al. [21, 22]. The base configurations were modified to

improve the performance of the PV/TW system. These modifications are inserting the DC fan, heat exchanger, porous medium, and glass cover. Incorporating the DC fan and bi fluid (air and water) cooling circuit offered desirable features of the system performance. This study dealt with the design of two different configurations PV/TW system, as shown in **Figure 7** as follows:


Also, various suggestions were performed to improve system performance. These modifications for both configurations are inserting a cooling coil and DC fan. Moreover, the second configuration, the porous medium, was added inside the gap, as shown in **Figure 7c**, and a glass cover was attached to the front of the solar cell, as shown in **Figure 7d**.

## **4. Variables affecting the performance of the PV/Trombe wall**

PV/TW considers favorable architectural technology and utilizes solar energy for cooling and heating in different climate areas. Many factors affect the efficiency of PV/TW, and these factors should be considered when designing this system in buildings. These factors include operation parameters (mass flow rate, cooling, partial covering, southern window, air duct, and tilt angle of the solar cell) and design parameters [properties of glass, direct current (DC) fan, channel depth, thermal insulation, packing factor, and materials].

#### **4.1 Effect of glass cover**

During the design of PV/TW, the characteristics of glass, such as the number of glass, glazing thickness, and types of glass (single glass, double glass, and double glass filled with argon), significantly affect the amount of solar radiation absorbed and transmitted, as well as the heat transfer between the interior and the ambient. Irshad et al. [23] presented a simulated model of a room with PV/TW. The performance evaluated by varying the airflow velocity for three different PV/TW glazing types (i.e., single glazing, double glazing, and double glazing filled with argon). The results showed that double-glazing PV/TW loaded with argon demonstrated a significant reduction in cooling load and room temperature, while PV productivity increased.

#### **4.2 Effect of DC fan**

Jie et al. [14] introduced a novel system for PV/TW-solar cell connected to a DC fan and compared the performance of the system with a normal Trombe wall-solar cell, as shown in **Figure 8**. The results showed a significant increase in room temperature compared to the original room, as well as an increase in the electrical efficiency of the solar cell due to improved cooling. Yi et al. [24] presented a simulated system of novel PV/TW with a DC fan. The results showed that as fan speed increased, the electric and thermal efficiencies also increased.

**61**

**4.3 Effect of channel depth**

*(a) PV module with a cell area of 0.0139 m2*

*(c) the proposed design of thin-film PV with glass.*

**Figure 8.**

**Figure 9.**

*Modified Photovoltaic-Trombe walls.*

cooling load of the room.

**4.4 Effect of packing factor**

The influence of channel depth, which represents the distance between a glass cover and a solar cell, was investigated. Ji et al. [25] studied the electrical and thermal performance of the PV/TW system utilized in Tibetan residential buildings, as shown in **Figure 8**. It was found that when the width of the PV/TW system increased, the room temperature also increased, although electrical effectiveness was almost constant. Changing the air gap and different types of PV glazing (i.e., double glazing, single glazing, and double glazing filled with argon) was studied by Irshad et al. [26]. The results affirmed that double glazing PV/TW system filled with argon gives the maximum PV efficiency at a roof pitch angle of 20° and an air gap of 0.2 m. Ventilated PV/TW system and PV cell installed through the roof also reduced the

*, (b) PV module with a cell area of 0.0069 m2*

*, and* 

Published studies have shown that reducing the packing factor leads to an increase in room temperature, as mentioned by Vats et al. [27]. The packing factor

*Recent Advances in Photovoltaic-Trombe Wall System: A Review*

*DOI: http://dx.doi.org/10.5772/intechopen.90618*

*Recent Advances in Photovoltaic-Trombe Wall System: A Review DOI: http://dx.doi.org/10.5772/intechopen.90618*

**Figure 8.** *Modified Photovoltaic-Trombe walls.*

*Renewable Energy - Technologies and Applications*

insulation, packing factor, and materials].

shown in **Figure 7d**.

**4.1 Effect of glass cover**

tions PV/TW system, as shown in **Figure 7** as follows:

duct, and the massive wall, as shown in **Figure 7b**.

improve the performance of the PV/TW system. These modifications are inserting the DC fan, heat exchanger, porous medium, and glass cover. Incorporating the DC fan and bi fluid (air and water) cooling circuit offered desirable features of the system performance. This study dealt with the design of two different configura-

1.The first configuration consists of a glass cover on the front, then the air duct, and the solar cell panel attached to the massive wall, as shown in **Figure 7a**.

2.The second configuration includes the solar cell panel in the front, then the air

Also, various suggestions were performed to improve system performance. These modifications for both configurations are inserting a cooling coil and DC fan. Moreover, the second configuration, the porous medium, was added inside the gap, as shown in **Figure 7c**, and a glass cover was attached to the front of the solar cell, as

PV/TW considers favorable architectural technology and utilizes solar energy for cooling and heating in different climate areas. Many factors affect the efficiency of PV/TW, and these factors should be considered when designing this system in buildings. These factors include operation parameters (mass flow rate, cooling, partial covering, southern window, air duct, and tilt angle of the solar cell) and design parameters [properties of glass, direct current (DC) fan, channel depth, thermal

During the design of PV/TW, the characteristics of glass, such as the number of glass, glazing thickness, and types of glass (single glass, double glass, and double glass filled with argon), significantly affect the amount of solar radiation absorbed and transmitted, as well as the heat transfer between the interior and the ambient. Irshad et al. [23] presented a simulated model of a room with PV/TW. The performance evaluated by varying the airflow velocity for three different PV/TW glazing types (i.e., single glazing, double glazing, and double glazing filled with argon). The results showed that double-glazing PV/TW loaded with argon demonstrated a significant reduction in cooling load and room temperature, while PV productivity

Jie et al. [14] introduced a novel system for PV/TW-solar cell connected to a DC fan and compared the performance of the system with a normal Trombe wall-solar cell, as shown in **Figure 8**. The results showed a significant increase in room temperature compared to the original room, as well as an increase in the electrical efficiency of the solar cell due to improved cooling. Yi et al. [24] presented a simulated system of novel PV/TW with a DC fan. The results showed that as fan speed increased, the electric and thermal efficiencies also

**4. Variables affecting the performance of the PV/Trombe wall**

**60**

increased.

increased.

**4.2 Effect of DC fan**

#### **Figure 9.**

*(a) PV module with a cell area of 0.0139 m2 , (b) PV module with a cell area of 0.0069 m2 , and (c) the proposed design of thin-film PV with glass.*

#### **4.3 Effect of channel depth**

The influence of channel depth, which represents the distance between a glass cover and a solar cell, was investigated. Ji et al. [25] studied the electrical and thermal performance of the PV/TW system utilized in Tibetan residential buildings, as shown in **Figure 8**. It was found that when the width of the PV/TW system increased, the room temperature also increased, although electrical effectiveness was almost constant.

Changing the air gap and different types of PV glazing (i.e., double glazing, single glazing, and double glazing filled with argon) was studied by Irshad et al. [26]. The results affirmed that double glazing PV/TW system filled with argon gives the maximum PV efficiency at a roof pitch angle of 20° and an air gap of 0.2 m. Ventilated PV/TW system and PV cell installed through the roof also reduced the cooling load of the room.

#### **4.4 Effect of packing factor**

Published studies have shown that reducing the packing factor leads to an increase in room temperature, as mentioned by Vats et al. [27]. The packing factor of a solar cell was dependent on changing the area of PV cells in a given area of the solar cell, as shown in **Figure 9**. The reduction in the temperature of the PV module was observed due to the reduction of the packing factor that enhances electrical effectiveness.

## **4.5 Effect of the coverage ratio**

The coverage ratio of PV glazing is defined as:

$$e = A\_{pv} / A\_{glaus} \tag{1}$$

where *Apv* is the area of PV cells, and *Aglass* is the area of PV glazing. Jiang et al. [28] concluded that with the increase of coverage ratio, the thermal efficiency

**Figure 10.** *Physical and simplified models of BIPV-TW.*

**63**

*Recent Advances in Photovoltaic-Trombe Wall System: A Review*

in the channel was less than room temperature [29].

**5. Conclusions and recommendations**

reduces thermal air efficiency.

cell of the PV/TW system.

and room temperature of the PV-TW decreased, but the electrical power and the total efficiency of PV/TW increased. Besides, the electrical efficiency of solar cells decreased, but the effect of the coverage ratio of electrical efficiency was small, less than 0.5%. If the glass were entirely covered with PVC, it would reduce solar radiation and might not be sufficient to provide heating. As a result, the air temperature

Xu and Su [30] carried out a numerical simulation of airflow in BIPV-TW, as shown in **Figure 10**. The results demonstrated that the airflow rate increased linearly with duct height. Also, Hu et al. [31] investigated experimentally three models of PV/TW, as shown in **Figure 11**, i.e., PV-BTW, PV-GTW, and PV-MTW at the University of Science and Technology of China. The results showed that the angle of 50° and the entry air flow rate of approximately 0.45 m/s were the best parameters for the PV-BTW type. The results also showed that the PV-GTW model produced

Previous works have shown that researchers are interested in finding a way to use solar energy as a substitute, useful, and clean energy. The researchers concluded the importance of studying design and operational information that led to an increase in the electrical and thermal efficiency of the PV/TW system. The

1.The use of water to cool the solar cell reduces the temperature of the solar cell, which increases the electrical power produced that increases the efficiency of electricity generation. Also, it increases the overall thermal efficiency but

2.The use of a DC fan increases the produced electrical power and room temperature, which increases thermal and electrical efficiency.

3.The use of glass cover increases the temperature of the solar cell, which

of glass cover increases the room temperature and thermal efficiency.

4.The use of a porous medium increases the area of heat transfer, which

5.Thermal and electrical efficiencies have decreased in a dusty and cloudy climate due to a decrease in the amount of solar radiation reaching the solar

decreases the power and efficiency of the electricity generation. Also, the use

increases the thermal and electrical efficiency and temperature of the room.

the highest electricity output compared to PV-MTW and PV-BTW.

following conclusions can be extracted from the previous studied:

*DOI: http://dx.doi.org/10.5772/intechopen.90618*

**4.6 Effect of mass flow rate**

**Figure 11.** *PV-Trombe wall modules of (a) PV-BTW, (b) PV-GTW, and (c) PV-MTW.*

and room temperature of the PV-TW decreased, but the electrical power and the total efficiency of PV/TW increased. Besides, the electrical efficiency of solar cells decreased, but the effect of the coverage ratio of electrical efficiency was small, less than 0.5%. If the glass were entirely covered with PVC, it would reduce solar radiation and might not be sufficient to provide heating. As a result, the air temperature in the channel was less than room temperature [29].

## **4.6 Effect of mass flow rate**

*Renewable Energy - Technologies and Applications*

The coverage ratio of PV glazing is defined as:

**4.5 Effect of the coverage ratio**

effectiveness.

of a solar cell was dependent on changing the area of PV cells in a given area of the solar cell, as shown in **Figure 9**. The reduction in the temperature of the PV module was observed due to the reduction of the packing factor that enhances electrical

*e* = *Apv*/ *Aglass* (1)

where *Apv* is the area of PV cells, and *Aglass* is the area of PV glazing. Jiang et al. [28] concluded that with the increase of coverage ratio, the thermal efficiency

**62**

**Figure 11.**

**Figure 10.**

*Physical and simplified models of BIPV-TW.*

*PV-Trombe wall modules of (a) PV-BTW, (b) PV-GTW, and (c) PV-MTW.*

Xu and Su [30] carried out a numerical simulation of airflow in BIPV-TW, as shown in **Figure 10**. The results demonstrated that the airflow rate increased linearly with duct height. Also, Hu et al. [31] investigated experimentally three models of PV/TW, as shown in **Figure 11**, i.e., PV-BTW, PV-GTW, and PV-MTW at the University of Science and Technology of China. The results showed that the angle of 50° and the entry air flow rate of approximately 0.45 m/s were the best parameters for the PV-BTW type. The results also showed that the PV-GTW model produced the highest electricity output compared to PV-MTW and PV-BTW.

## **5. Conclusions and recommendations**

Previous works have shown that researchers are interested in finding a way to use solar energy as a substitute, useful, and clean energy. The researchers concluded the importance of studying design and operational information that led to an increase in the electrical and thermal efficiency of the PV/TW system. The following conclusions can be extracted from the previous studied:


*Renewable Energy - Technologies and Applications*

## **Author details**

Omer K. Ahmed Northern Technical University, Kirkuk, Iraq

\*Address all correspondence to: omerkalil@yahoo.com

© 2020 The Author(s). Licensee IntechOpen. This chapter is distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/ by/3.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

**65**

*Recent Advances in Photovoltaic-Trombe Wall System: A Review*

A review of opportunities and

10.1016/j.rser.2012.06.032

egypro.2012.05.181

rser.2016.12.003

jobe.2018.02.007

thermal.505498

challenges in research and development. Renewable and Sustainable Energy Reviews. 2012;**16**(8):6340-6351. DOI:

[10] Fares A. The effect of changing Trombe wall component on the thermal load. Energy Procedia. 2012;**19**(1):47-54. DOI: 10.1016/j.

[11] Stazi F, Mastrucci A, Perna C. Trombe wall management in summer conditions: An experimental study. Solar Energy. 2012;**86**(9):2839-2851. DOI: 10.1016/j.solener.2012.06.025

[12] Hu Z, He W, Ji J, Zhang S. A review on the application of Trombe wall system in buildings. Renewable and Sustainable Energy Reviews. 2017;**70**(2017):976-987. DOI: 10.1016/j.

[13] Mohammed F, Ahmed O, Emad A. Effect of climate and design parameters on the temperature distribution of a room. Journal of Building Engineering.

2018;**17**:115-124. DOI: 10.1016/j.

[14] Jie J, Hua Y, Gang P, Bin J, Wei H. Study of PV-Trombe wall assisted with DC fan. Building and Environment. 2007;**42**(10):3529-3539. DOI: 10.1016/j.buildenv.2006.10.038

[15] Taner T. A feasibility study of solar energy-techno economic analysis from Aksaray City, Turkey. Journal of Thermal Science and Engineering. 2018;**3**(5):25-30. DOI: 10.18186/

[16] Chow T, Hand J, Strachan P. Building-integrated photovoltaic and thermal applications in a subtropical hotel building. Applied Thermal Engineering. 2003;**23**(16):2035-2049. DOI: 10.1016/S1359-4311(03)00183-2

*DOI: http://dx.doi.org/10.5772/intechopen.90618*

[1] Ahmed O, Mohammed Z. Influence of porous media on the performance of hybrid PV/thermal collector. Renewable

Energy. 2017;**112**:378-387. DOI: 10.1016/j.renene.2017.05.061

[2] Taner T, Kürşat Demirci O. Energy and economic analysis of the wind turbine plant's draft for the Aksaray City. Applied Ecology and Environmental Sciences. 2014;**2**(3):82-

85. DOI: 10.12691/aees-2-3-2

[3] Ahmed O, Hamada K, Salih A. A state of the art review of PV-Trombe wall system: Design and applications. Environmental Progress & Sustainable Energy. 2019:1-16. DOI: 10.1002/

[4] Ahmed O, Bawa S. Reflective mirrors effect on the performance of the hybrid PV/thermal water collector. Energy for Sustainable Development. 2018;**43**:235- 246. DOI: 10.1016/j.esd.2018.02.001

[5] Hussien A, Ahmed O. Assessment of the performance for a hybrid PV/ solar chimney. International Journal of Engineering & Technology. 2018;**7**:114- 120. DOI: 0.14419/ijet.v7i4.37.24085

[6] Abdullah A, Ahmed O, Ali Z. Performance analysis of the new design of photovoltaic/storage solar collector. Energy Storage. 2019;**1**(3):1-13. DOI:

[7] Ahmed O. A numerical and experimental investigation for a triangular storage collector. Solar Energy. 2018;**171**:884-892. DOI: 10.1016/j.solener.2018.06.097

[8] Ahmed O, Hussein A. New design of solar chimney (case study). Case Studies in Thermal Engineering. 2018;**11**:105- 112. DOI: 10.1016/j.csite.2017.12.008

[9] Saadatian O, Sopian K, Lim C, Asim N, Sulaiman M. Trombe walls:

10.1002/est2.79

**References**

ep.13370

*Recent Advances in Photovoltaic-Trombe Wall System: A Review DOI: http://dx.doi.org/10.5772/intechopen.90618*

## **References**

*Renewable Energy - Technologies and Applications*

**64**

**Author details**

Omer K. Ahmed

Northern Technical University, Kirkuk, Iraq

provided the original work is properly cited.

\*Address all correspondence to: omerkalil@yahoo.com

© 2020 The Author(s). Licensee IntechOpen. This chapter is distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/ by/3.0), which permits unrestricted use, distribution, and reproduction in any medium,

[1] Ahmed O, Mohammed Z. Influence of porous media on the performance of hybrid PV/thermal collector. Renewable Energy. 2017;**112**:378-387. DOI: 10.1016/j.renene.2017.05.061

[2] Taner T, Kürşat Demirci O. Energy and economic analysis of the wind turbine plant's draft for the Aksaray City. Applied Ecology and Environmental Sciences. 2014;**2**(3):82- 85. DOI: 10.12691/aees-2-3-2

[3] Ahmed O, Hamada K, Salih A. A state of the art review of PV-Trombe wall system: Design and applications. Environmental Progress & Sustainable Energy. 2019:1-16. DOI: 10.1002/ ep.13370

[4] Ahmed O, Bawa S. Reflective mirrors effect on the performance of the hybrid PV/thermal water collector. Energy for Sustainable Development. 2018;**43**:235- 246. DOI: 10.1016/j.esd.2018.02.001

[5] Hussien A, Ahmed O. Assessment of the performance for a hybrid PV/ solar chimney. International Journal of Engineering & Technology. 2018;**7**:114- 120. DOI: 0.14419/ijet.v7i4.37.24085

[6] Abdullah A, Ahmed O, Ali Z. Performance analysis of the new design of photovoltaic/storage solar collector. Energy Storage. 2019;**1**(3):1-13. DOI: 10.1002/est2.79

[7] Ahmed O. A numerical and experimental investigation for a triangular storage collector. Solar Energy. 2018;**171**:884-892. DOI: 10.1016/j.solener.2018.06.097

[8] Ahmed O, Hussein A. New design of solar chimney (case study). Case Studies in Thermal Engineering. 2018;**11**:105- 112. DOI: 10.1016/j.csite.2017.12.008

[9] Saadatian O, Sopian K, Lim C, Asim N, Sulaiman M. Trombe walls: A review of opportunities and challenges in research and development. Renewable and Sustainable Energy Reviews. 2012;**16**(8):6340-6351. DOI: 10.1016/j.rser.2012.06.032

[10] Fares A. The effect of changing Trombe wall component on the thermal load. Energy Procedia. 2012;**19**(1):47-54. DOI: 10.1016/j. egypro.2012.05.181

[11] Stazi F, Mastrucci A, Perna C. Trombe wall management in summer conditions: An experimental study. Solar Energy. 2012;**86**(9):2839-2851. DOI: 10.1016/j.solener.2012.06.025

[12] Hu Z, He W, Ji J, Zhang S. A review on the application of Trombe wall system in buildings. Renewable and Sustainable Energy Reviews. 2017;**70**(2017):976-987. DOI: 10.1016/j. rser.2016.12.003

[13] Mohammed F, Ahmed O, Emad A. Effect of climate and design parameters on the temperature distribution of a room. Journal of Building Engineering. 2018;**17**:115-124. DOI: 10.1016/j. jobe.2018.02.007

[14] Jie J, Hua Y, Gang P, Bin J, Wei H. Study of PV-Trombe wall assisted with DC fan. Building and Environment. 2007;**42**(10):3529-3539. DOI: 10.1016/j.buildenv.2006.10.038

[15] Taner T. A feasibility study of solar energy-techno economic analysis from Aksaray City, Turkey. Journal of Thermal Science and Engineering. 2018;**3**(5):25-30. DOI: 10.18186/ thermal.505498

[16] Chow T, Hand J, Strachan P. Building-integrated photovoltaic and thermal applications in a subtropical hotel building. Applied Thermal Engineering. 2003;**23**(16):2035-2049. DOI: 10.1016/S1359-4311(03)00183-2

[17] Hu Z et al. Comparative study on the annual performance of three types of building integrated photovoltaic (BIPV) Trombe wall system. Applied Energy. 2017;**194**:81-93. DOI: 10.1016/j. apenergy.2017.02.018

[18] Nagano K, Mochida T, Shimakura K, Murashita K, Takeda S. Development of thermal-photovoltaic hybrid exterior wallboards incorporating PV cells in and their winter performances. Solar Energy Materials & Solar Cells. 2003;**77**(3):265-282. DOI: 10.1016/ S0927-0248(02)00348-3

[19] Jie J, Hua Y, Wei H, Gang P, Jianping L, Bin J. Modeling of a novel Trombe wall with PV cells. Building and Environment. 2007;**42**(3):1544-1552. DOI: 10.1016/j.buildenv.2006.01.005

[20] Taffesse F, Verma A, Singh S, Tiwari G. Periodic modeling of semitransparent photovoltaic thermal-Trombe wall (SPVT-TW). Solar Energy. 2016;**135**:265-273. DOI: 10.1016/j. solener.2016.05.044

[21] Ahmed O, Hamada K, Salih A. Enhancement of the performance of photovoltaic/Trombe wall system using the porous medium: Experimental and theoretical study. Energy. 2019;**171**:14- 26. DOI: 10.1016/j.energy.2019.01.001

[22] Ahmed O, Hamada K, Salih A. Performance analysis of PV/Trombe with water and air heating system: An experimental and theoretical study. Energy Sources, Part A: Recovery, Utilization, and Environmental Effects. 2019;**86**:716-722. DOI: 10.1080/15567036.2019.1650139

[23] Irshad K, Habib K,

Thirumalaiswamy N. Performance evaluation of PV-Trombe wall for sustainable building development. Procedia CIRP. 2015;**26**:624-629. DOI: 10.1016/j.procir.2014.07.116

[24] Jie J, Hua Y, Gang P, Bin J, Wei H. Optimized simulation for PV-TW

system using DC fan. In: Proceedings of ISES World Congress 2007: Solar Energy and Human Settlement; 18-21 September 2007. pp. 1617-1622. DOI:10.1007/978-3-540-75,997-3\_332

**Chapter 5**

India

**Abstract**

of the system.

**1. Introduction**

**67**

Energetics and GHG Emission

*Bhupendra Singh Rawat, Pradeep Chandra Pant,*

**Keywords:** energy analysis, energy payback period, energy yield ratio,

Energy security is a goal that many countries are pursuing to ensure that their economies function without interruption and that their peoples have access to adequate, reliable and affordable supplies of modern and clean energy. It is a pressing concern because the demand for energy is growing rapidly due to robust economic expansion, population growth, new uses of energy and income growth and yet the supplies of energy resources required to power these needs are finite and in most cases nonrenewable. Furthermore, the production, transportation and

glazed flat plate collectors, GHG emission mitigation

*Poonam Negi and Bharti Ramola*

Mitigation Potential Estimation

of Solar Water Heating System in

The aim of this study is focused on "energetics" or energy analysis and evaluation of greenhouse gas (GHG) mitigation potential of solar water heating system (SWHS) having 100 litre per day (lpd) capacity in 28 states of India. Different types of collectors are used in solar water heating system, which may affect on the feasibility of the system. So to analyze this factor, the present approach focused on three types of glazed flat plate collectors. In addition to this, the feasibility of the system also does depend upon the end user applications. So to incorporate more feasible analysis, three different scenarios were considered. For the analysis of environmental impact of the system, GHG emission mitigation potential has also been evaluated by assuming the replacement of the system with frequently used fuels, viz., natural gas, coal, diesel, etc. This was done for both seasonal and annual use of this renewable energy thermal device. The result of this study shows that energy payback period (EPBP) and energy yield ratio (EYR) values for selected locations are in the adoption level. In case of coal, the GHG-emission reduction was found to have a maximum value of 22.4 tCO2 for the state of Rajasthan and a minimum value of 13.4 tCO2, for Jammu & Kashmir, for 20 years of useful lifetime

[25] Ji J, Yi H, Pei G, He H, Han C, Luo C. Numerical study of the use of photovoltaic—Trombe wall in residential buildings in Tibet. Proceedings of the Institution of Mechanical Engineers, Part A. 2007;**221**(A8):1131-1140. DOI: 10.1243/09576509JPE364

[26] Irshad K, Habib K, Kareem W. Effect of air gap on performance enhancement of building assisted with photo voltaic systems. ARPN. Journal of Engineering and Applied Science. 2016;**11**(20):12078-12083

[27] Vats K, Tomar V, Tiwari G. Effect of packing factor on the performance of a building integrated semitransparent photovoltaic thermal (BISPVT) system with air duct. Energy and Buildings. 2012;**53**:159-165. DOI: 10.1016/j. enbuild.2012.07.004

[28] Jiang B, Ji J, Yi H. The influence of PV coverage ratio on thermal and electrical performance of photovoltaic-Trombe wall. Renewable Energy. 2008;**33**(11):2491-2498. DOI: 10.1016/j. renene.2008.02.001

[29] Sun W, Ji J, Luo C, He W. Numerical study of performance of Trombe wall with PV cells. ISES Solar World Congress. 2007;**1**:397-400

[30] Xu X, Su Y. Numerical simulation of air flow in BiPV-Trombe wall. Advances in Materials Research. 2013;**860- 863**:141-145. DOI: 10.4028/www. scientific.net/AMR.860-863.141

[31] Hu Z et al. Design, construction and performance testing of a PV blind-integrated Trombe wall module. Applied Energy. 2017;**203**:643-656. DOI: 10.1016/j.apenergy.2017.06.078

## **Chapter 5**

*Renewable Energy - Technologies and Applications*

system using DC fan. In: Proceedings of ISES World Congress 2007: Solar Energy and Human Settlement; 18-21 September 2007. pp. 1617-1622. DOI:10.1007/978-3-540-75,997-3\_332

[25] Ji J, Yi H, Pei G, He H, Han C, Luo C. Numerical study of the use of photovoltaic—Trombe wall in residential buildings in Tibet. Proceedings of the Institution of Mechanical Engineers,

Part A. 2007;**221**(A8):1131-1140. DOI:

[26] Irshad K, Habib K, Kareem W. Effect of air gap on performance enhancement

[27] Vats K, Tomar V, Tiwari G. Effect of packing factor on the performance of a building integrated semitransparent photovoltaic thermal (BISPVT) system with air duct. Energy and Buildings. 2012;**53**:159-165. DOI: 10.1016/j.

[28] Jiang B, Ji J, Yi H. The influence of PV coverage ratio on thermal and electrical performance of photovoltaic-Trombe wall. Renewable Energy. 2008;**33**(11):2491-2498. DOI: 10.1016/j.

[29] Sun W, Ji J, Luo C, He W. Numerical study of performance of Trombe wall with PV cells. ISES Solar World

[30] Xu X, Su Y. Numerical simulation of air flow in BiPV-Trombe wall. Advances

in Materials Research. 2013;**860- 863**:141-145. DOI: 10.4028/www. scientific.net/AMR.860-863.141

[31] Hu Z et al. Design, construction and performance testing of a PV blind-integrated Trombe wall module. Applied Energy. 2017;**203**:643-656. DOI:

10.1016/j.apenergy.2017.06.078

10.1243/09576509JPE364

2016;**11**(20):12078-12083

enbuild.2012.07.004

renene.2008.02.001

Congress. 2007;**1**:397-400

of building assisted with photo voltaic systems. ARPN. Journal of Engineering and Applied Science.

[17] Hu Z et al. Comparative study on the annual performance of three types of building integrated photovoltaic (BIPV) Trombe wall system. Applied Energy. 2017;**194**:81-93. DOI: 10.1016/j.

[18] Nagano K, Mochida T, Shimakura K, Murashita K, Takeda S. Development of thermal-photovoltaic hybrid exterior wallboards incorporating PV cells in and their winter performances. Solar Energy Materials & Solar Cells. 2003;**77**(3):265-282. DOI: 10.1016/

apenergy.2017.02.018

S0927-0248(02)00348-3

solener.2016.05.044

[19] Jie J, Hua Y, Wei H, Gang P, Jianping L, Bin J. Modeling of a novel Trombe wall with PV cells. Building and Environment. 2007;**42**(3):1544-1552. DOI: 10.1016/j.buildenv.2006.01.005

[20] Taffesse F, Verma A, Singh S, Tiwari G. Periodic modeling of semitransparent photovoltaic thermal-Trombe wall (SPVT-TW). Solar Energy. 2016;**135**:265-273. DOI: 10.1016/j.

[21] Ahmed O, Hamada K, Salih A. Enhancement of the performance of photovoltaic/Trombe wall system using the porous medium: Experimental and theoretical study. Energy. 2019;**171**:14- 26. DOI: 10.1016/j.energy.2019.01.001

[22] Ahmed O, Hamada K, Salih A. Performance analysis of PV/Trombe with water and air heating system: An experimental and theoretical study. Energy Sources, Part A: Recovery, Utilization, and Environmental Effects. 2019;**86**:716-722. DOI: 10.1080/15567036.2019.1650139

Thirumalaiswamy N. Performance evaluation of PV-Trombe wall for sustainable building development. Procedia CIRP. 2015;**26**:624-629. DOI:

[24] Jie J, Hua Y, Gang P, Bin J, Wei H. Optimized simulation for PV-TW

[23] Irshad K, Habib K,

10.1016/j.procir.2014.07.116

**66**
