The maximum cooling density of a realistic Stirling refrigerator

Abstract

The maximum cooling density of a Stirling refrigerator operating in a closed regenerative thermodynamic cycle is presented in this paper. The cooling density is the cooling load per unit volume of the refrigerator. Since the size of the refrigerator is involved in the cooling density, the maximization of the cooling density has given a critical compression ratio. The maximum cooling density serves as a better comparison criterion for thermoeconomic considerations.

Limits and Optimization of Power Input or Output of Actual Thermal Cycles

“…Numerical examples were selected in a way that would be close to the values met in practice and by using references for irreversible Brayton cycle, [56][57][58][59][60][61][62][63] …”

“…The central receiver and parabolic dish solar systems based Stirling/Ericsson heat engine is more efficient and suitable for both the terrestrial [56,57] and non-terrestrial [58,59] solar installations. In the literature, Erbay and Yavuz, investigated irreversible Stirling and Ericsson engines [60][61][62][63]. In this study their model was adopted for the analyzing of the Stirling-Ericsson engines.…”

Компьютерне Моделювання Холодильної Машини Стірлінга

“…Chen and Yan [9] developed a model for a Stirling refrigerator that investigated the effects of non-ideal regenerators. Erbay and Yavuz [10] took a more practical approach to the analysis of Stirling refrigerators by studying the cooling load per unit volume. Omari [11] compared the differences between the ideal and real Stirling cycles that occur in the refrigerator, but lacked analysis of the effect of system parameters on performance.…”

“…It also provides a deeper analysis of the factors that affect refrigerator performance compared to Tekin and Ataer [8], since they assumed the regenerator to be adiabatic. In addition, it improves upon the model of Erbay and Yavuz [10] because they included the isochoric processes of an ideal Stirling cycle. In the following, the governing equations for each section of the refrigerator are developed.…”

Cooling load density characteristics of an endoreversible variable-temperature heat reservoir air refrigerator

“…Goktun, 1996;Wu et al, 1998;Bejan and Vargas, 1995;Wijeysundera, 1997). Erbay and Yavuz (1998) and Yavuz and Erbay (1998) have taken the cooling load density, defined as the ratio of cooling load to the maximum specific volume in the cycle, as the optimization objective and analysed the optimum performance of an idea reversible Stirling refrigerator, as well as Ericsson refrigerator free of heat transfer and any other irreversibilities. Due to the enormously destroying to the Ozonosphere by Freon, the analysis of air refrigeration cycle were paid attention to recently because of the pressure of environmental protection.…”