A heat engine (HE) with a thermal efficiency of 35% rejects 550 kJ/kg of heat to...

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A heat engine (HE) with a thermal efficiency of 35% rejects 550 kJ/kg of heat to a sink (low temperature reservoir) at temperature of 25 °C. (a) How much heat does it receive? (b) For the heat engine in (a) above, what is the least/minimum heat input possible? (c) What is the maximum percent decrease in heat input possible? Note: the question could be stated as in parts (a) and (c) only and you have to recognize that you need to do part (b) in order to answer part (c). (d) What is your conclusion? A heat engine (HE) with a thermal efficiency of 35% rejects 550 kJ/kg of heat to a sink (low temperature reservoir) at temperature of 25 °C. (a) How much heat does it receive? (b) For the heat engine in (a) above, what is the least/minimum heat input possible? (c) What is the maximum percent decrease in heat input possible? Note: the question could be stated as in parts (a) and (c) only and you have to recognize that you need to do part (b) in order to answer part (c). (d) What is your conclusion?

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heat engine cycle with the following ... View the full answer