Study on the improved recuperator design used in the direct helium-turbine power conversion cycle of HTR-10

摘要

Recuperator is one of the key devices in the direct helium-turbine cycle of 10MW High Temperature Gas cooled Test Reactor (HTR-10GT). In the former research, a recuperator had been already designed for HTR-10GT. Due to the space limitation in PCU vessel, the recuperator needs to be improved to reduce its volume. The purpose in this study is to create a new compact high-effective recuperator which has a smaller volume than the former one by using fins on the heat exchange plate. This paper presents the main characteristics, structural peculiarity and the thermal-hydraulic analysis of the improved recuperator.