프레온 냉동장치의 과열도에 관한 성능 특성 연구 －열교환기 타입별 비교－ = A Study on Performance Characteristics due to the Degree ofSuperheat in Freon Refrigerating System－The Comparison of Heat Exchanger Types－

다국어 초록 (Multilingual Abstract)

Nowadays heat exchangers that have been applied for freon refrigerating systems, a shell and tube type condenser, but because of their large size, large space for installation and more amount of refrigerants are needed. Therefore, in this study, we will find the most suitable operating condition through the comparison of performance between the shell & tube type and shell & disk type heat exchanger with R22. The experiments are carried out for the condensing pressure of refrigeration system from 1,500kPa to 1,600kPa and for the degree of superheat from 0 to 10℃ at each condensing pressure. As a result of experiment, if the shell & disk type heat exchanger is applied for R22 refrigerating systems, minimized input of refrigerants and space required for installation will be secured, which will have a great contribute to financial improvement for industry.

참고문헌 (Reference)

1 "The study on performance characteristics of superheating the Suction Vapor in NH3 Refrigeration System" 16 (16): 756-761, 2004

2 "The Study of Disk Shell type Heat Exchanger Development" MOCIE 2002

3 "Critical Review of Available Correlations for Two-Phase Flow Heat Transfer of Ammonia" 19 (19): 279-284, 1996