Thermal-Hydraulic Performance Tests of PCHE Using Mixture-Gas for HTGRs

摘要

A heat exchanger is a critical component to determine system overall efficiency. A Printed Circuit Heat Exchanger (PCHE) is considered as a highly feasible candidate for heat applications of gas-cooled reactors due to its great performance with high effectiveness, high structural integrity and compactness. Therefore, investigation on PCHE thermal-hydraulic performance is one of the most important research items in gas-cooled reactors. We already investigated the thermal-hydraulic performance of the PCHE in helium-helium condition for application to an intermediate heat exchanger (IHX) or a recuperator [1]. We also performed helium-water tests to investigate thermal-hydraulic performance for the pre-cooler [2].