**4. Conclusion**

From the above results and discussion, the following conclusion are drawn.

• The different design variants of earth to air heat exchanger i.e. spiral pipe, straight pipe, and the helical pipe have been analyzed for finding cooling and heating of the building.

*Earth Air Tunnel Heat Exchanger for Building Cooling and Heating DOI: http://dx.doi.org/10.5772/intechopen.99348*

**Figure 19.** *Graph of EATHE temperature v/s length.*

**Figure 20.** *Graph of heat transfer rate v/s section length.*


**Figure 20** illustrates the variations of heat transfer rates along the pipe length of heat exchanger. The heat transfer rate along the pipe length follows the same trend as the temperature followed. The heat transfer rate is achieved in a straight, spiral,

From the above results and discussion, the following conclusion are drawn.

• The different design variants of earth to air heat exchanger i.e. spiral pipe, straight pipe, and the helical pipe have been analyzed for finding cooling and

and helical pipe is 6974.014w, 7235.335w, and 7213.558w respectively.

**4. Conclusion**

**278**

**Figure 18.**

**Figure 17.**

*Temperature couture plot of spiral pipe for heating mode.*

*Heat Transfer - Design, Experimentation and Applications*

*Temperature couture plot of helical pipe for heating mode.*

heating of the building.

*Heat Transfer - Design, Experimentation and Applications*

**References**

[1] T. S. Bisoniya, A. Kumar, and P. Baredar, "Experimental and analytical studies of earth-air heat exchanger (EAHE) systems in India: A review," Renewable and Sustainable Energy Reviews, vol. 19, pp. 238–246, 2013.

*DOI: http://dx.doi.org/10.5772/intechopen.99348*

*Earth Air Tunnel Heat Exchanger for Building Cooling and Heating*

model to experimental setup. IOSR Journal of Engineering, 8(01), V2.

and Adeba, J. (2019, August).

Publishing LLC.

[9] Hasan, N., Sheikh, M. Y., Bulcha, A.,

Numerical investigation of chlorinated polyvinyl chloride pipe earth air tunnel heat exchanger at different pipe diameter. In AIP conference proceedings (Vol. 2134, No. 1, p. 030003). AIP publishing LLC.

[10] Hasan, N., Tibba, I. G. S., Mosisa, F. T., and Daniel, A. (2018, September). Ground tunnel as renewable energy utilization of ground energy as a source and sink for building heating and cooling. In AIP Conference Proceedings (Vol. 2018, No. 1, p. 020005). AIP

[11] Hasan, N., Mathur, Y. B., and Khader, M. A. (2018). Validation of earth air tunnel heat exchanger CFD model to experimental setup. IOSR Journal of Engineering, 8(01), V2.

and Adeba, J. (2019, August).

s40517-018-0097-0

[12] Hasan, N., Sheikh, M. Y., Bulcha, A.,

Numerical investigation of chlorinated polyvinyl chloride pipe earth air tunnel heat exchanger at different pipe diameter. In AIP conference proceedings (Vol. 2134, No. 1, p. 030003). AIP publishing LLC.

[13] Agrawal, K.K., Bhardwaj, M., Misra, R. et al. Optimization of operating parameters of earth air tunnel heat exchanger for space cooling: Taguchi method approach. Geotherm Energy 6, 10 (2018). https://doi.org/10.1186/

[2] V. Bansal, R. Misra, G. D. Agrawal, and J. Mathur, "Performance analysis of earth-pipe-air heat exchanger for winter heating," Energy and Buildings, vol. 41,

[3] V. Bansal, R. Misra, G. D. Agrawal, and J. Mathur, "Performance analysis of earth-pipe-air heat exchanger for summer cooling," Energy and Buildings, vol. 42, no. 5, pp. 645–648, 2010.

[4] N. K. Bansal, M. S. Sodha, and S. S. Bharadwaj, "Performance of Earth-air tunnel system," International Journal of Energy Research, vol. 7, no. 4, pp. 333– 345, 1983. S. S. Bharadwaj and N. K. Bansal, "Temperature distribution inside ground for various surface conditions," Building and Environment,

vol. 16, no. 3, pp. 183–192, 1981.

[5] M. Santamouris, A. Argiriou, and M. Vallindras, "Design and operation of a low energy consumption passive solar agricultural greenhouse," Solar energy, vol. 52, no. 5, pp. 371–378, 1994.

[6] R. Kumar, S. C. Kaushik, and S. N. Garg, "Heating and cooling potential of an earth-to-air heat exchanger using artificial neural network," Renewable Energy, vol. 31, no. 8, pp. 1139–1155,

[7] S. Milun, T. Kilić, and O. Bego, "Measurement of soil thermal properties by spherical probe," IEEE Transactions on Instrumentation and Measurement, vol. 54, no. 3, pp. 1219–1226, 2005.

[8] Hasan, N., Mathur, Y. B., and Khader, M. A. (2018). Validation of earth air tunnel heat exchanger CFD

2006.

**281**

no. 11, pp. 1151–1154, 2009.
