lecture 11 - refrigerators and Carnot

lecture 11 - refrigerators and Carnot -...

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Prayer Friday is last lecture on Thermodynamics a. Reading assignment “handout” will be  posted on website Exam 1 starts Tuesday of next week Exam review session: Friday, Saturday, or  Monday?     I will send out survey today Announcements - 1 Feb 2011
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Review Engines a. Picture b. Relationship between Q h , Q c , and |W| c. Defn of efficiency d. How to calculate efficiency Class-designed engine continued from last  time
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Reading Quiz What is the “Clausius statement” of the  Second Law of Thermodynamics? a. Adiabatic processes are reversible. b. Heat energy does not spontaneously flow  from cold to hot. c. It is impossible to convert any heat into  work. d. No real engine can be more efficient than  the equivalent “Carnot engine”. e. There are no truly “irreversible” processes.
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Refrigerators (or air conditioners) COP: How good is your refrigerator? fridge heat, Q c work exhaust, Q h
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COP: How good is your heat pump? heat
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This document was uploaded on 02/29/2012.

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lecture 11 - refrigerators and Carnot -...

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