**Operation and Performance Analysis of Steam Generators in Nuclear Power Plants Operation and Performance Analysis of Steam Generators in Nuclear Power Plants**

Siniša Šadek and Davor Grgić Siniša Šadek and Davor Grgić Additional information is available at the end of the chapter

Additional information is available at the end of the chapter

http://dx.doi.org/10.5772/66962

#### **Abstract**

[12] Incropera F P, DeWitt D P. Fundamentals of Heat and Mass Transfer. 3rd ed. New York:

[13] Incropera FP, DeWitt DP, Bergman TL, Lavine AS. Fundamentals of Heat and Mass

[15] Kandlikar SG, Garimella S, Li D, Colin S, King MR. Heat Transfer and Fluid Flow in

[16] Hasan MI, Rageb AA, Yaghoubi M, Homayoni H. Influence of channel geometry on the performance of a counter flow microchannel heat exchanger. Int. J. Therm. Sci. 2009; 48:

[17] Ameel TA, Warrington RO, Wegeng RS, Drost MK. Miniaturization technologies applied

[18] Dang TT, Chang YJ, Teng JT. A study on the simulations of a trapezoidal shaped micro

[19] Dang TT, Teng JT, Chu JC. Effect of flow arrangement on the heat transfer behaviors of a microchannel heat exchanger. In: Proceedings of the International Multi Conference of Engineers and Computer Scientists 2010 (IMECS2010); Hongkong; 2010; 2209–2214 (best

[20] Dang TT, Teng JT. Numerical and experimental studies of the impact of flow arrangement on the behavior of heat transfer of a microchannel heat exchanger. IAENG Int. J. Appl.

[21] Dang TT, Teng JT. Influence of flow arrangement on the performance for an aluminium microchannel heat exchanger. IAENG Transactions on Engineering Technologies. The

[22] Kakac S, Liu H. Heat Exchangers Selection, Rating and Thermal Design. 2nd ed. Florida:

[23] Carozza A, Mingione G, Pezzella G. Computational flow field analyses on aeronautical oil cooling systems. In: Proceedings of the 21th AIDAA Conference; September 2013;

[24] Carozza A. An innovative approach for the numerical simulation of oil cooling systems.

[25] Carozza A. Assessment of the performances of a heat exchanger in a light helicopter. Adv.

[26] Carozza A. Numerical investigation of heat exchanger performances for a two engine aircraft in pusher configuration by an U-RANS code. Appl. Therm. Eng. 2016; 99: 1048–

[14] Jiji LM. Heat Convection. 2nd ed. Berlin Heidelberg: Springer; Verlag; 2009.

Minichannels and Microchannels. Singapore: Elsevier Pte Ltd; 2006.

to energy systems. Energy Convers. Manage. 1997; 38: 969–982.

American Institute of Physics (AIP). 2010; 1285: 576–590.

Adv. Aircraft Space. Sci. Int. J. 2015; 2:169–182.

Aircraft Space. Sci. 2015; 2(4):469–482.

heat exchanger. J. Adv. Eng. 2009; 4: 397–402.

Wiley; 1990. pp. 658–660.

166 Heat Exchangers– Advanced Features and Applications

1607–1618.

student paper award).

Math. 2010; 40: 207–213.

CRC Press; 2002.

Napoli.

1056.

Transfer. 6th ed. New York: Wiley; 2006. pp. 686–688.

Steam generators are components in which heat produced in the reactor core is transferred to the secondary side, the steam supply system, of the nuclear power plant (NPP). Steam generators (SGs) have to fulfil special nuclear regulatory requirements regarding their size, selection of materials, pressure loads, impact on the NPP safety, etc. The primary-side fluid is liquid water at the high pressure, and the fluid on the secondary side is saturated water-steam mixture at the pressure twice as low. A special attention is given to preserving the boundary between the contaminated water in the primary reactor coolant system and the water-steam mixture in the secondary system. A brief overview of the SG design, its operation and the mathematical correlations used to quantify heat transfer is given in the chapter. Results of the SG transient behaviour obtained by the simulation with the best-estimate computer code RELAP5, developed for safety analyses of NPPs, are also presented. Two types of steam generators are analyzed: the inverted U-tube SG, which is commonly found in the present-day pressurized water reactors and the helicalcoil SG that is part of the new-generation reactor designs.

**Keywords:** steam generator, nuclear power plant, reactor safety, numerical analysis, SG operation, inverted U-tube SG, helical-coil SG
