진동형 히트파이프를 이용한 바닥 난방시스템 성능에 관한 실험적 연구

The purpose of this study was to develop the floor-heating device using pulsating heat pipe. The floor-heating device was consisted of the `U` type water pipe of aluminum and pulsating heat pipe had 3.0 ㎜ outer diameter, 2.0 ㎜ inner diameter tube of copper.<BR> The performance tests were conducted under the next conditions; Working fluid was R-22, R-134a, charging ratio 40%, 50%, temperature of inlet water 60℃, 70℃, flow rates were 1~3 ㎏/min, ambient airs were 5℃, 10℃.<BR> The experimental results indicate that the Pulsating Heat Pipe charged 50%(Vol.) showed better performance tha 40%(Vol.) and it is suited to the floor-heating device.