Thermoeconomic optimization of an irreversible Stirling cryogenic refrigerator cycle

This communication presents the thermoeconomic optimization of an irreversible Stirling cryogenic refrigerator cycle. The external irreversibility is due to finite temperature difference between the working fluid and the external reservoirs while the internal irreversibility is due to the regenerative heat loss. The thermoeconomic function is defined as the cooling load divided by the total cost of the system plus the running cost. The thermoeconomic function is optimized with respect to the working fluid temperatures and the values for various parameters at the optimal operating condition are calculated. The effects of different operating parameters on the performance of the cycle have been studied. It is found that the effect of regenerative effectiveness is more than those of the other parameters on all the performance parameters of the cycle, for the same set of operating condition.

[1]  C. H. Blanchard,et al.  Coefficient of performance for finite speed heat pump , 1980 .

[2]  Bahri Sahin,et al.  Effects of internal irreversibility and heat leakage on the finite time thermoeconomic performance of refrigerators and heat pumps , 2000 .

[3]  S. C. Kaushik,et al.  Ecological optimization and parametric study of irreversible Stirling and Ericsson heat pumps , 2002 .

[4]  Mohamed A. Antar,et al.  Thermoeconomic considerations in the optimum allocation of heat exchanger inventory for a power plant , 2001 .

[5]  Cha'o-Kuang Chen,et al.  The ecological optimization of an irreversible Carnot heat engine , 1997 .

[6]  Santanu Bandyopadhyay,et al.  Thermoeconomic optimization of combined cycle power plants , 2001 .

[7]  Zijun Yan,et al.  Comment on ‘‘An ecological optimization criterion for finite‐time heat engines’’ [J. Appl. Phys. 69, 7465 (1991)] , 1993 .

[8]  Cha'o-Kuang Chen,et al.  Ecological optimization of an endoreversible Brayton cycle , 1998 .

[9]  Guoxing Lin,et al.  Ecological optimization criterion for an irreversible three-heat-source refrigerator , 2000 .

[10]  Fernando Angulo-Brown,et al.  An ecological optimization criterion for finite‐time heat engines , 1991 .

[11]  Chih Wu,et al.  Ecological optimisation of an irreversible Stirling heat engine , 2001 .

[12]  Harvey S. Leff,et al.  EER, COP, and the second law efficiency for air conditioners , 1978 .

[13]  Jincan Chen.  Minimum power input of irreversible Stirling refrigerator for given cooling rate , 1998 .

[14]  S. C. Kaushik,et al.  Parametric study of irreversible stirling and ericsson cryogenic refrigeration cycles , 2002 .

[15]  Bahri Sahin,et al.  Finite time thermoeconomic optimization for endoreversible refrigerators and heat pumps , 1999 .

[16]  F. Curzon,et al.  Efficiency of a Carnot engine at maximum power output , 1975 .

[17]  Chih Wu,et al.  Specific heating load of an endoreversible Carnot heat Pump , 1993 .