A Study on Performance Characteristics of R134a Variation with a Capillary Tube Diameter and Length in a Domestic Small multi Refrigerator [Kim_Chi Refrigerator]

모세관 내경 축소에 따른 소형멀티 냉동시스템의 성능특성변화

This paper is an experimental study on the performance characteristic with a variation of capillary diameter and length. The performance characteristic of a refrigeration system is predicted that it is occurring changes of flow pattern and pressure drop in a capillary tube because of reduction of capillary diameter 0.74 to 0.6 mm. The difference between experimental results and analytical results is mainly caused by values of friction factor for using to calculate pressure drop through a small diameter capillary tube under 0.74mm. The experimental equation is derived from capillary tube test data using curve fitting method.