극초고압 충돌분무시 충돌면의 온도거동에 관한 연구

A Study on the Temperature Behavior of Impinging Plate in Impinging Spray with Ultra High pressure

The characteristics of instantaneous wall-surface temperature of impinging plate in case of ultra high pressure injection have been measured and analyzed by using thin film instantaneous temperature probe and ultra high pressure injection equipment. The decreasing rate of temperature was greater in case of higher temperature of impinging plate. Temperature drop was largest at center of piston and it was slight for others. Instantaneous temperature decreases rapidly with increasing injection pressure. But above 2,500bar of injection pressure, the decreasing rates are slightly affected by increasing injection pressure.