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Question: q11 a in a heat engine it is important that...

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Q11. (a) In a heat engine it is important that the heat transfer media is only used for heat transfer and not used as a storage facility. Describe techniques that can be employed to provide balance [marks] the loads of the evaporator to the condenser and explain why it should not be used as a storage medium. Neatly sketch on a T-s diagram the states and process of a Rankine cycle with a superheat temperature of 450 °C and re heater temperature of 450°C, which uses steam between the pressures of 30 and 0.04bar. Then calculate the heat and worlk transfers, cycle efficiency, work ratio and steam consumptioin of the cycle. The feed pump work is 3kJ/kg (b) [marks]

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