CycleGuide - ME 201 Thermodynamics Cycle Analysis Guide...

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1 ME 201 Thermodynamics Cycle Analysis Guide Basic Principles Three basic types of thermal cycles Control Volume Power or Propulsion Cycles Closed System Power or Propulsion Cycles Control Volume Refrigeration Cycle All three systems have Heat Added q in Heat Rejected q out Net Work Output w net First Law for any complete cycle is w net = q in - q out Net Power or heat transfer rate is given by W = m w net net Q = m q in in System performance is characterized by Thermal Efficiency: η th net in = W Q (for power cycles) Coefficient of Performance: COP = Q W in net (for refrigeration cycles) To characterize best performance compare to Carnot cycle
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ME 201 Thermodynamics 2 Carnot Cycle Thermal Efficiency: η Carnot L H = 1- T T Carnot Cycle COP for Refrigerator: ( 29 COP = 1 T T -1 Carnot H L Procedure of Cycle Analysis 1. The plant layout is sketched as a block diagram. The devices or processes are placed and connected according to the plant description. 2.
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CycleGuide - ME 201 Thermodynamics Cycle Analysis Guide...

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