Le23 - ME 200: Thermodynamics I Lecture 23: Temperature...

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ME 200: Thermodynamics I Lecture 23: Temperature scales, maximum performance measures Reading: Sections 5.8-5.9; SP23, 5.49, 5.63 10/20/2010 1 ME200 Therm I Lecture 23, Prof. Mongia Professor Hukam Mongia Office Hours: MWF 9:30 to 10:30 AM in ME 83 Other times email for appointment; Phone: 765-494-5640 Course Website: https://engineering.purdue.edu/ME200/ Course Secretaries: Diana Akers (ME 84) and Marilyn Morrison (ME 100) Grader: Abhro Pal , abhro.pal@gmail.com
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2 nd corollary of the 2 nd Law: All reversible power cycles operating between the same two thermal reservoirs have the same thermal efficiency . - Independent of the processes - Independent of the working fluid 2 All reversible refrigeration (heat pump) cycles operating between the same two thermal reservoirs have the same coefficient of performance. 1 revcycle revcycle revcycle revcycle revc revcycle ycle HC revcycle revcycl C H e HH QQ Q Q Q W Q 
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10/20/2010 ME200 Therm I Lecture 23, Prof. Mongia 3 1 1 1 , , 1 revcycle revcycle revcycle revcycle revcycle revcycle revcycle revcycle revcycle revcycle revcycle revcycle CC revcycle revcycle H C HH revcycle revcycle H C H C C H QQ Simila Q Q Q rly W Q Q And W Q Q Q [ ] ( , ) C revcycle H H H C C Q Q T T   
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4 Pr exp , . ., ( )? . ' " ": C H What willittaketo get asimple ression e g f of Mongia s spin exp . 0. /. HC Letusrunasimple erimentinvolving reversibleheattransfer Thismeans It should beindependent of the propertiesof theworking fluid consistent w reversibilitydefinition  exp 0 / , ,. Heattransfer researchersroutinelyrun erimentsinvolving small tomeasure calculateheattransfer coefficients filmeffectiveness   '?
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This note was uploaded on 01/13/2011 for the course ME 200 taught by Professor Gal during the Fall '08 term at Purdue University-West Lafayette.

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Le23 - ME 200: Thermodynamics I Lecture 23: Temperature...

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