평판핀이 부착된 증발기의 시뮬레이션

Numerical Simulation of Plate Finned-Tubes Evaporator

  • 손병진 (한양대학교 기계공학과) ;
  • 민묘식 (유한공업전문대학 기계설계과) ;
  • 최상경 (한양대학교 대학원)
  • 발행 : 1989.11.01

초록

Development of a more satisfactory program of computing the performance on a multi-tube evaporator with continuous plate fins is attempted in this study. The fluid flow involving a change of phase make the flow properties and fluid friction factor of refrigerants, the heat transfer coefficients of refrigerant and air sides vary significantly. Taking such variations into account, a useful program is developed to predict the steady state performance of a multi-tube evaporator. The program was applied to an evaporator which has outside diameter of 10.05mm, inside diameter of 9.35mm, length of 5.4m and two rows arraied staggered. Then the variations of refrigerant quality, temperature, pressure, velocity, enthalpy, specific volume and air temperature, tube temperature were discussed. Satisfactory results were presented that the degree of superheat at the outlet side was $4.4^{\circ}C$ and the air temperature drop between the inlet and outlet of the air conditioner was $10^{\circ}C$.

키워드

과제정보

연구 과제 주관 기관 : 한국과학재단