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열기관의 최대출력 사이클

Maximum Power Output Cycle of Heat Engines

  • 김수연 (영남대학교 공과대학 기계설계학과) ;
  • 정평석 (영남대학교 공대 기계공학과) ;
  • 노승탁 (서울대학교 공대 기계공학과) ;
  • 김효경 (서울대학교 공대 기계공학과)
  • 발행 : 1990.05.01

초록

본 연구에서는 열기관의 출력이, 주어진 열원사이에서 구성되는 사이클의 형 태에 의존한다는 점에서 최대출력 사이클이 어떤 형태가 될 것인가하는 문제에 촛점을 맞추어 사이클을 해석하고, 최대출력을 구하고자 한다.

The cycle of heat engine which produces the maximum power output is constructed when heat sources are finitely constant, and the maximum power as a thermodynamic limit of the engine, is obtained. The characteristics of the maximum power cycle are as follows, which represent the operation conditions and design conditions of the heat engine to produce the maximum power output. In heat exchangers, the temperature profiles of the heat source and the working fluid have the same functional formula and the ratio of the working fluid temperature to the heat source temperature is constant. When heat capacity flow rates(product of the specific heat and the mass flow rate) of the working fluid as well as the heat source are constant, the values of those of working fluid exist between those of two heat sources. The relation of the temperature and the heat capacity flow rate is established without the states of the heat sources and the capacities of heat exchangers, which is ( $T_{h}$/ $T_{H}$)( $C_{h}$/ $C_{H}$)=( $T_{1}$/ $T_{L}$)( $c_{1}$/ $c_{L}$)=1. The capacity of the heat exchanger of hot side is equal to that of cold side regardless of the states of the heat sources and the total capacities of heat exchangers.hangers.ers.

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