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Conference Article: The Application of Compact Heat Exchangerin 10MW Nuclear Power Conversion System

Yu Cheng, Jinling Li, Jie Wang, Suyuan Yu, Institute of Nuclear and New Energy Technology, Beijing, CHINA

Abstract

The performance expectations of closed Brayton Cycle with the compact heat exchanger as recuperator in 10MW high temperature gas-cooled reactor (HTR-10) power conversion system are forecasted. The key factors affecting the Brayton Cycle efficiency through recuperator are recuperator effectiveness and the cycle fractional pressure loss. Using conventional recuperator designs, the 0.95 effectiveness proved difficult to achieve without exceeding other performance targets; the compact heat exchangers, the metallic plate type and plate-fin type counterflow solutions are called for less mass and low pressure-loss than the target value. The dependency of the system pressure through the fractional pressure drop for the Brayton Cycle efficiency is accessed.

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key words: Compact heat exchanger, Brayton Cycle, HTR-10, recuperator, plate-fin exchanger.
Reference:
Proceedings of the Conference on High Temperature Reactors, Beijing, China, September, 22-24, 2004
International Atomic Energy Agency, Vienna (Austria)
HTR-2004, pp:1-7