Transactions of the Korean Society of Mechanical Engineers (대한기계학회논문집)
- Volume 14 Issue 1
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- Pages.225-229
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- 1990
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- 1225-5963(pISSN)
DOI QR Code
Optimal Design Condition of Refrigeration Cycle with Heat Transfer Processes
열전달을 고려한 냉동 사이클의 최적 설계조건
- Published : 1990.04.01
Abstract
As a basic study of optimal design conditions of refrigeration systems, the reversed carnot cycle, including heat transfer processes through the finite temperature differences between heat sources and the working fluids, is analyzed with the capacity of heat exchanger as a design parameter. When the temperatures of heat sources and the input work are fixed as constants, the optimal design condition is obtained as an optimum ratio of capacities of heat exchangers, which is exactly unity when the exergy output and effectiveness are maximum. In addition, the optimum ratio is slightly increased from unity as the irreversibility of the cycle increases.
본 연구에서는 외부조건과 입력이 일정하게 주어져 있는 냉동 사이클에 대하 여 열교환기의 용량을 설계변수로 하여 출력과 효율이 최대가 되는 조건, 즉 최적 설 계조건을 살펴 보고자 한다. 아울러 이 조건과 엔트로피 생성 최소조건과의 관계와 비가역 사이클인 경우도 살펴보았다.
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