Determination of optimum high-side pressure of R744 automotive heat pump using Fibonacci search method
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This paper deals with maximizing coefficient of performance (COP) of R744 automotive heat pump. A high-side pressure variation is possible during transcritical operation employing low pressure receiver and electronic expansion valve (EXV). The optimal high-side pressure is then determined using Fibonacci search method. This approach is one of possible methods of online high-side pressure control and it has significant advantages over the offline methods.
Document typePeer reviewed
SourceProceedings of the 2017 IEEE International Symposium on Industrial Electronics. 2017, p. 448-453.