How do the following quantities change when the simple ideal Rankine cycle is modified with regeneration? Assume the mass flow rate through the boiler is the same.
Added by Julie E.
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Heat input in the boiler (Q_in): In a regenerative Rankine cycle, some of the steam is extracted from the turbine at an intermediate stage and used to preheat the feedwater in a heat exchanger called a regenerator or feedwater heater. This reduces the amount of Show more…
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How do the following quantities change when a simple ideal Rankine cycle is modified with reheating? Assume the mass flow rate is maintained the same.
Consider a simple ideal Rankine cycle with fixed boiler and condenser pressures. If the cycle is modified with regeneration that involves one open feedwater heater (select the correct statement per unit mass of steam flowing through the boiler), $(a)$ the turbine work output will decrease. $(b)$ the amount of heat rejected will increase. $(c)$ the cycle thermal efficiency will decrease. $(d)$ the quality of steam at turbine exit will decrease. $(e)$ the amount of heat input will increase.
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