Proceedings of the SAREK Conference (대한설비공학회:학술대회논문집)

The Society of Air-Conditioning and Refrigerating Engineers of Korea (대한설비공학회)
권호 표지

A Simulation for predicting the Refrigerant Flow Characteristics Including Metastable Region in Non-Adiabatic Capillary Tubes

증발 지연 구간을 포함한 비단열 모세관에서의 냉매 유동 특성 예측을 위한 시뮬레이션

  • Son, Ki-Dong (Department of Mechanical Engineering, Pusan National University) ;
  • Park, Sang-Goo (Department of Mechanical Engineering, Pusan National University) ;
  • Jeong, Ji-Hwan (Department of Mechanical Engineering, Pusan National University) ;
  • Kim, Lyun-Su (LG Electronics)
  • Published : 2008.06.25
Download PDF
⟨ Previous Next ⟩

Abstract

The capillary tube/suction line heat exchanger (SLHX) is widely used in small refrigeration systems. The refrigerant flowing in the SLHX experiences frictional and accelerational head losses, flashing, and heat transfer simultaneously. The simulation of refrigerant flow through SLHX is important since this will help engineers analyze and optimize the SLHX incorporated in a refrigeration system. The present SLHX model is based on conservation equations of mass, momentum and energy. Also a meta-stable model is included. All these equations are solved simultaneously. In this paper, HFC-134a refrigerant flow through a non-adiabatic capillary tube is simulated. The simulation results are discussed but not validated against experimental measurements yet.

Keywords