An empirical model for sizing capillary tubes

被引：43
作者：
Bansal, PK
Rupasinghe, AS
机构：
[1] Department of Mechanical Engineering, University of Auckland, Auckland
来源：
INTERNATIONAL JOURNAL OF REFRIGERATION-REVUE INTERNATIONALE DU FROID | 1996年 / 19卷 / 08期
关键词：
household refrigerator; expansion; capillary; simulation; calculation;
D O I：
10.1016/S0140-7007(96)00044-8
中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
This paper presents an empirical model that has been developed to size adiabatic and non-adiabatic capillary tubes for small vapour compression refrigeration systems, in particular, household refrigerators and freezers. The model is based on the assumption that the length of a capillary tube is dependent on five primary variables, namely the capillary tube inner diameter, the mass flow rate of the refrigerant in the capillary tube, the pressure difference between highside and lowside, the refrigerant subcooling at capillary inlet and the relative roughness of the capillary tube material. The model is validated with previous studies over a range of operating conditions and is found to agree reasonably well with the experimental data for HFC134a. Copyright (C) 1996 Elsevier Science Ltd and IIR
引用
收藏
页码：497 / 505
页数：9
相关论文
共 25 条
  • [1] [Anonymous], 1957, REFRIGERAT ENG
  • [2] *ASHRAE, 1988, 1988 ASHRAE HDB 1988, P19
  • [3] BITTLE RR, 1995, ASHRAE T, V101
  • [4] BOLSTAD MM, 1949, REFRIG NEG, P572
  • [5] Cooper L., 1957, REF ENG, V65, P37
  • [6] ERTH RA, 1969, THESIS PURDUE U
  • [7] NUMERICAL-SIMULATION OF CAPILLARY-TUBE EXPANSION DEVICES
    ESCANES, F
    PEREZSEGARRA, CD
    OLIVA, A
    [J]. INTERNATIONAL JOURNAL OF REFRIGERATION-REVUE INTERNATIONALE DU FROID, 1995, 18 (02): : 113 - 122
  • [8] Hopkins N. E, 1950, REFRIGERATING ENG, V58, P1087
  • [9] Inan C., 1994, P 1994 INT REFR C PU, P365
  • [10] LI RY, 1990, INT J REFRIG, V13, P181
123