lecture9 - Prof.Naik 2010 ME 200: Thermodynamics I Lecture...

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1 Prof.Naik © 2010 ME 200: Thermodynamics I Last Lecture Energy Balance – Cycles » Summation of all heat interactions (Q cycle ) must equal the Prof.Naik © 2010 summation of all work interactions (W cycle ) Power cycles deliver net work output while refrigeration/heat pump cycles require net work input Performance parameters defined for the above cycles » Power Cycle – Thermal Efficiency in out out thermal QQ W  » Refrigeration Cycle or Heat Pump Cycle - Coefficient of Performance in in  in in refrigerator in out in COP W out out heat pump in out in COP W
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2 This Lecture Pure Substance Prof.Naik © 2010 Phase Phase Change Property Diagrams Pure Substance A substance with a throughout is a known as Pure Substance Prof.Naik © 2010 is a known as Pure Substance e.g. A mixture of various elements or compounds is a pure substance as long as the e.g. A mixture of two or more phases is a pure substance as long as the e.g.
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3 Phase Prof.Naik © 2010 Three common phases: solids, liquids and gases
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This note was uploaded on 02/16/2011 for the course ME 200 taught by Professor Gal during the Fall '08 term at Purdue University-West Lafayette.

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lecture9 - Prof.Naik 2010 ME 200: Thermodynamics I Lecture...

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