ME200 - Lecture 20

ME200 - Lecture 20 - 10/12/2010 1 System Integration:...

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Unformatted text preview: 10/12/2010 1 System Integration: Analysis of systems of thermodynamic components ME 200 Thermodynamics I Purdue University , Dr. Tim Pourpoint timothee@purdue.edu Lecture 20 October 13 th , 2010 Application of First Law of Thermodynamics Heat Exchangers Mixing Chambers Throttling Valve Last Lecture Throttling Valves TODAY: Finish 2 nd example from last lecture System Integration: Analysis of systems of thermodynamic components Turbine ME 200 ME 200 2 Turbines Compressors Pumps Heat Exchangers and Mixing Chambers Nozzles and Diffusers Throttling Devices 10/12/2010 2 R134a enters the expansion valve of a refrigeration system as a saturated liquid at a pressure of 1.0 MPa, is throttled in the valve, and exits at a pressure of 0.10 MPa. Example 19.2 What is the quality of the refrigerant exiting the expansion valve? (Answer: x 2 = 0.414) Now assume that the R134a is initially at 1.0 MPa, 80 C....
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ME200 - Lecture 20 - 10/12/2010 1 System Integration:...

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