The optimization for the straight-channel PCHE size for supercritical CO2 Brayton cycle

Hong Xu; Chengjie Duan; Hao Ding; Wenhuai Li; Yaoli Zhang; Gang Hong; Houjun Gong

doi:https://doi.org/10.1016/j.net.2020.12.002

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자료유형: 학술저널

저자정보: Hong Xu (College of Energy, Xiamen University, Xiamen, Fujian, 361105, China) Chengjie Duan (China Nuclear Power Technology Research Institute Co. Ltd,) Hao Ding (College of Energy, Xiamen University, Xiamen, Fujian, 361105, China) Wenhuai Li (China Nuclear Power Technology Research Institute Co. Ltd) Yaoli Zhang (College of Energy, Xiamen University, Xiamen, Fujian, 361105, China) Gang Hong (College of Energy, Xiamen University, Xiamen, Fujian, 361105, China) Houjun Gong (Nuclear Power Institute of China)

저널정보: 한국원자력학회 Nuclear Engineering and Technology Nuclear Engineering and Technology 제53권 제6호

발행연도: 2021.6

수록면: 1,786 - 1,795 (10page)

DOI: https://doi.org/10.1016/j.net.2020.12.002

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Printed Circuit Heat Exchanger (PCHE) is a widely used heat exchanger in the supercritical carbon dioxide(sCO2) Brayton cycle because it can work under high temperature and pressure, and has been a hot topicin Next Generation Nuclear Plant (NGNP) projects for use as recuperators and condensers. Most previousstudies focused on channel structures or shapes. However, no clear advancement has so far been seen inthe allover size of the PCHE. In this paper, we proposed an optimal size of the PCHE with a fixed volume. Two boundary conditions of PCHE were simulated, respectively. When the volume of PCHE was fixed, theheat transfer rate and pressure loss were picked as the optimization objectives. The Pareto front wasobtained by the Multi-objective optimization procedure.We got the optimized number of PCHE channelsunder two different boundary conditions from the Pareto front. The comprehensive performance can beincreased by 5.3% while holding in the same volume. The numerical results from this study can be usedto improve the design of PCHE with straight channels.

#Printed circuit heat exchanger #Supercritical CO2 #Heat transfer rate #Pumping power

참고문헌 (28)

참고문헌 신청

Y. Yu / 2017 / Coupled simulation of the combustion and fluid heating of a 300 MW supercritical CO2 boiler / Appl. Therm. Eng 113:259~267

A. Moisseytsev / 2009 / Investigation of alternative layouts for the supercritical carbon dioxide Brayton cycle for a sodium-cooled fast reactor / Nucl. Eng. Des 239:1362~1371

R. Singh / 2013 / Dynamic characteristics of a direct-heated supercritical carbon-dioxide Brayton cycle in a solar thermal power plant / Energy 50:194~204

S. K. Mylavarapu / 2014 / Thermal hydraulic performance testing of printed circuit heat exchangers in a high-temperature helium test facility / Appl. Therm. Eng 65:605~614

J. W. Seo / 2015 / Heat transfer and pressure drop characteristics in straight microchannel of printed circuit heat exchangers / Entropy 17:3438~3457

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