Kyungjae LEE , Inyoung YANG , Yangji LEE , Sanghoon LEE
DOI Number XXX-YYY-ZZZ
Conference Number HiSST-2022-13
A performance test rig for heat exchanger of a supersonic regenerative cooling combustor was
developed in Korea Aerospace Research Institute. The 500 hp compressor was used to supply air of
more than 2 bar and the air was heated through two electric air heaters, which had a capacity of 300
kW and 400 kW, respectively. Max. air flow is about 0.7 kg/s and max. air temperature is about 600
℃. The heated air is accelerated up to Mach 2 with supersonic nozzle. A preliminary performance test
was carried out with heat exchanger of a supersonic regenerative cooling combustor model at Mach 2
air flow and air temperature was varied from 300 to 500 ℃. And room temperature water was supplied
as a fuel and coolant of heat exchanger instead of real fuel for safety reason.