Development of high temperature SiC/SiC composite intermediate heat exchanger for He and LiPb

In order to develop a compact intermediate heat exchanger which is applicable for high temperatures above 900degC, assuming HTGR (high temperature gas cooled reactor), a heat exchanger module made of SiC
_f
/SiC composite has been designed, fabricated and tested with LiPb-He double loop. The heat transfer from liquid metal to gas has been measured, and heat transfer of >1.3 kW and reasonable heat exchange performance are obtained with 10 cm times 10 cm times 3 cm test module. The results also show that the heat transfer from the IHX module to fluid is predominant in overall heat transfer coefficient.