중형급 이산화탄소 급탕기의 실험적 연구

Middle commercial size of CO2 water heater having a 10 hp of compressor was designed, and performance of the system were investigated. The COP of the system was 3.2 at ambient temperature of 7℃ and under the outlet temperature of 80℃. Besides, the test data were estimated by numerical modeling within 15% of mean deviation. The heat capacity and COP increased with increase of ambient temperature.