The immediate heat exchanger is important for the heat utilization and hydrogen production in a very high-temperature gas-cooled reactor (VHTR). There is a 90-degree elbow passageway in the inlet passageway of immediate heat exchanger, contributing uneven flow distribution in circumference direction in the heat transfer area, which is harmful to the heat transfer tubes aging process. In this study, three inlet passageway optimization designs are put forward and their optimization effect is analyzed according to specific criterion by CFD. As the existence of spiral tube area would have coupling effect on inlet passageway flow, in the computation, the heat transfer area is assumed to be porous medium, in which the effect of heat transfer is taken into account as well. The result shows that installing flow distributer in the inlet passageway could make helium flow on circumference direction most homogenous.
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2018 26th International Conference on Nuclear Engineering
July 22–26, 2018
London, England
Conference Sponsors:
- Nuclear Engineering Division
ISBN:
978-0-7918-5153-1
PROCEEDINGS PAPER
Inlet Passageway Optimization of Immediate Heat Exchanger in an HTGR Available to Purchase
Jingdan Cui,
Jingdan Cui
Tsinghua University, Beijing, China
Search for other works by this author on:
Jie Wang
Jie Wang
Tsinghua University, Beijing, China
Search for other works by this author on:
Jingdan Cui
Tsinghua University, Beijing, China
Kun Yuan
Tsinghua University, Beijing, China
Qi Sun
Tsinghua University, Beijing, China
Wei Peng
Tsinghua University, Beijing, China
Jie Wang
Tsinghua University, Beijing, China
Paper No:
ICONE26-81801, V009T16A056; 5 pages
Published Online:
October 24, 2018
Citation
Cui, J, Yuan, K, Sun, Q, Peng, W, & Wang, J. "Inlet Passageway Optimization of Immediate Heat Exchanger in an HTGR." Proceedings of the 2018 26th International Conference on Nuclear Engineering. Volume 9: Student Paper Competition. London, England. July 22–26, 2018. V009T16A056. ASME. https://doi.org/10.1115/ICONE26-81801
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