A heat engine is driven by 2 kg/s hot air at 1200 K that exits the heat
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Question:
A heat engine is driven by 2 kg/s hot air at 1200 K that exits the heat exchanger at 400 K. The heat engine cycle has heat rejection at 325 K and a first law efficiency of 0.30. The heat rejection is done in a heat exchanger that uses ambient air at 20°C to cool it. Use the exergy equation to find the exergy destruction in a) the low T heat exchanger and b) the heat engine plus the high T heat exchanger.
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