Performance investigation of a thermal‐driven refrigeration system

Thermal-driven refrigeration systems have attracted increasing research and development interest in recent years. These systems do not cause ozone depletion and can reduce demand on electricity. The main objective of this work is to perform tests and theoretical analyses of a thermal-driven refrigeration system using a new sorbent–sorptive pair as the working pair. The active component of the sorbent used in this study is sodium thiocyanate (NaSCN). Ammonia (NH3) is chosen as sorptive. Based on the thermodynamic properties of the working solution, a mathematical model is introduced to analyze the system characteristics and performance. A series of experimental data is collected to establish the relationships among different system parameters. The results are compared with those of other thermal-driven refrigeration systems. It is shown that the advantages provided by this system over others include lower generator and evaporator temperatures and a higher coefficient of performance (COP). Copyright © 2008 John Wiley & Sons, Ltd.

[1]  Da-Wen Sun,et al.  Comparison of the performances of NH3-H2O, NH3-LiNO3 and NH3-NaSCN absorption refrigeration systems , 1998 .

[2]  Ruzhu Wang,et al.  Recent developments of refrigeration technology in fishing vessels , 2005 .

[3]  W. Rivera,et al.  Thermodynamic design data for absorption heat pump systems operating on ammonia-sodium thiocyanate—II. Heating , 1993 .

[4]  Ch. Trepp,et al.  Equation of state for ammonia-water mixtures , 1984 .

[5]  S. Srinivasa Murthy,et al.  Influence of heat exchanger effectiveness on performance of vapour absorption heat transformers , 1989 .

[6]  F. Daniels,et al.  Concentrated Solutions of NaSCN in Liquid Ammonia. Solubility, Density, Vapor Pressure, Viscosity, Thermal Conductance, Heat of Solution and Heat Capacity , 1962 .

[7]  Shenyi Wu,et al.  A novel absorption-recompression refrigeration cycle , 1998 .

[8]  K. P. Tyagi,et al.  Ammonia-salts vapour absorption refrigeration systems , 1984 .

[9]  K Tyagi.  Second law analysis of NH3?NaSCN absorption refrigeration cycle , 1986 .

[10]  R. S. Agarwal,et al.  Solid absorbents for solar powered refrigeration systems , 1985 .

[11]  W. A. Beckman,et al.  Theoretical performance of an ammonia-sodium thiocyanate intermittent absorption refrigeration cycle , 1968 .

[12]  P. Bourseau,et al.  Réfrigération par cycle à absorption-diffusion: comparison des performances des systèmes NH3H2O et NH3NaSCN , 1986 .

[13]  C. A. Infante Ferreira,et al.  Thermodynamic and physical property data equations for ammonia-lithium nitrate and ammonia-sodium thiocyanate solutions , 1984 .