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Lecture35_Superheat and reheat-handout

Lecture35_Superheat and reheat-handout - ME200...

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1 Professor: Euiwon Bae Lecture Hours : MWF 1:30-2:20 in ME1130 Office Hours : MWF 2:30-3:30 in ME1091 Email : [email protected] Phone : 765-494-6849 Course website : http://engineering.purdue.edu/ME200 ME200 : Thermodynamics I Lecture 35 : Superheat and reheat
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2 Outline Improving performance -superheat Improving performance-reheat Examples
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3 Improving performance - In real power plant system, addition modification on cycles are implemented to improve the performance T s 1 2 3 4 1’ 4’ 2’ Higher P at boiler -> Lower P at condenser -> Impact of liquid droplets on blade (common practice x>= 90%) Superheat reheat
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4 Improving performance Rolls Royce Turbine engine blades
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5 Improving performance - Superheat : let’s bring into the vapor via heating it up to superheated vapor - High quality at exit of turbine Pum p Boiler Turbine Condenser ? ? 𝑊 𝑊 ? ?𝐻 T s 1 2 3 4 1’ 2’
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6 Improving performance - Reheat : heat-expand combination is performed in multiple - High quality at exit of turbine T s 1 4’ 5 6 3 4 2 Pum p Boiler LP Turbine Condenser ?
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