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Question: 8 an energy conversion system consists of an evaporator in...

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(8%) An energy conversion system consists of an evaporator in order to have the teat system working fluid evaporated and passed through a turbine subsequently The evaporator is a heat exchanger consisting of a single shell with two tube 8 passes The working fluid evaporates at its phase change temperature of 290 K The required heat transfer rate is 66.7 MW)from the fluid water which enters at 300 K and leaves at 292 K. The 1200 W/mK The water has or 4181 J/kgK at average temperature 296 K. heat transfer coefficient is about (a) Find the mass flow rate for the water passing through the evaporator. (3%) (b) Using the LMTD method and the ε-NTU method to find the heat exchanger area required for the evaporator (12%)

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