Abstract
The green house effect by carbon dioxide issue would make better recognizing the importance of efficient use of energy in terms of high energy conservation measures. The Stirling cycle has the highest theoretical cycle efficiency corresponding to the value of the Carnot cycle among the proposed thermodynamic cycles. Moreover, the Stirling refrigerator is a perfect a freon free refrigerator. The authors have designed and developed a 100 W class Stirling refrigerator for household use. Moreover, the prototype machine has been integrated with a 100 litter class refrigerator. The operating characteristics of this Stirling unit or the prototype machine have been evaluated and are presented in this paper. As a result, the operational characteristics of the Stirling refrigerator have been clarified with respect to design factors such as pull down characteristics.
