Transcript
CHAPTER
9
Vapor and Combined Power Cycles
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9-1
FIGURE 9-1T-s diagram of two Carnot vapor cycles.
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9-2
FIGURE 9-2The simple ideal Rankine cycle.
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9-3
FIGURE 9-4(a) Deviation of actual vapor power cycle from the ideal Rankine cycle. (b) The effect of pump and turbine irreversibilities on the ideal Rankine cycle.
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9-4
FIGURE 9-6The effect of lowering the condenser pressure on the ideal Rankine cycle.
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9-5
FIGURE 9-7The effect of superheating the steam to higher temperatures on the ideal Rankine cycle.
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9-6
FIGURE 9-8The effect of increasing the boiler pressure on the ideal Rankine cycle.
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9-7
FIGURE 9-9A supercritical Rankine cycle.
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9-8
FIGURE 9-10T-s diagrams of the three cycles discussed in Example 9–3.
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FIGURE 9-11The ideal reheat Rankine cycle.
9-9
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9-10
FIGURE 9-14The first part of the heat-addition processin the boiler takesplace at relatively low temperatures.
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9-11
FIGURE 9-15The ideal regenerative Rankine cycle with an open feedwater heater.
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9-12
FIGURE 9-16The ideal regenerative Rankine cycle with a closed feedwater heater.
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9-13
FIGURE 9-17A steam power plant with one open and three closed feedwater heaters.
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9-14
FIGURE 9-20A simple process-heating plant.
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9-15
FIGURE 9-21An ideal cogeneration plant.
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9-16
FIGURE 9-22A cogeneration plant with adjustable loads.
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9-17
FIGURE 9-24Combined gas–steam power plant.
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9-18
FIGURE 9-26Mercury–water binary vapor cycle.
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