Browse > Article
http://dx.doi.org/10.5855/ENERGY.2015.24.2.103

A study on the temperature distribution characteristics in the tube modules of a heat recovery steam generator ith the change of heat transfer modeling  

Ha, Ji Soo (Department of Mechanical and Automotive Engineering, Keimyung University)
Publication Information
Abstract
A heat recovery steam generator consists of inlet expansion duct and heat transfer tube bank modules. For the enhancement of heat transfer in the tube bank modules, the flow should be uniform before the 1st heat transfer tube bank module. The present study has been carried out to analyze the flow characteristics in the inlet expansion duct of a heat recovery steam generator by using numerical flow analysis. The aim of the present study is to establish the proper heat transfer mechanism in the heat transfer tube bank modules by the comparison of the heat transfer models, the case with the constant heat loss per unit volume and the case with heat loss by using inner and outer convective heat transfer coefficient of heat transfer tube. From the present research, it could be seen that the heat transfer mechanism with using inner and outer convective heat transfer coefficient derives more proper temperature distribution results and the acceptance criteria of the temperature distribution within ${\pm}10^{\circ}C$ before SCR is satisfied with using this heat transfer mechanism.
Keywords
heat recovery steam generator; heat transfer tube bank module; convective heat transfer coefficient; velocity rms value; SCR(selective catalytic reduction); temperature range;
Citations & Related Records
Times Cited By KSCI : 3  (Citation Analysis)
연도 인용수 순위
1 Jae Dong Park, Il Wong Park, Kyong Chun Kim, "Heat Transfer and Draft Loss In HRSG Tube Banks", Proceedings of the SAREK Summer Annual Confenrence, 2000, p. 141-146
2 Chae_hon Chong, Jung-il Song, "Stress Behaviors of Superheater Tubes under Load Change Operation in HRSG", Journal of the Korean Solar Energy Society, 2008, Vol. 28, No. 6, p. 33-39
3 Chae_hon Chong, Jung-il Song, "Effect on Thermal Performance of Superheater Module under Part Load Operation in HRSG", Journal of Energy Engineering, 2008, Vol. 17, No. 3, p. 161-166
4 H.K. Choi, G.K. Yoo, B.J. Shin and C.H. Kim, "NUMERICAL STUDY ON FLOW CHARACTERISTIC IN THE HEAT RECOVERY STEAM GENERATOR", 2010, Vol. 15, No.1, p. 17-23
5 Tae Kwon Kim, Boo Yoon Lee, Ji Soo Ha, "A Numerical Analysis of Flow Characteristics in a Heat Recovery Steam Generator with the Change of Inlet Flow Conditions", Journal of the Korean Institute of Gas, 2011, Vol. 15, No.3, p. 53-57   DOI
6 Ji Soo Ha, "Characteristics of Flow Uniformity at the Section before Tube Bank with the Change of Expansion Inlet Duct Shape in a Heat Recovery Steam Generator", 2012, Journal of the Korean Institute of Gas, 2011, Vol. 16, No.1, p. 1-7   DOI
7 ESCOA, "Fin Tube Manual", ESCOA Corp., 1978
8 Marie-Noelle Dumont, Georges Heyen, "Mathematical modelling and design of an advanced oncethrough heat recovdery steam generator", Computer and Chemical Engineering, Vol. 28, 2004, p. 651-660   DOI
9 S.V. Patankar, Numerical Heat Transfer and Fluid Flow, 1980, 126-131