Lesson 28



Name:ETP Section:t3 Start Time:11:13:46 Instructor:pattersonet Course:421




1. Is it possible to convert all the heat put into a system into work? If so, under what conditions? If not, why not? Please explain your answers.

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2. If you wanted to improve the typical efficiency of power plant steam turbines from about 40-50% to about 60-70%, what would you have to do?

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3. Which of the following is a true statement about Carnot efficiencies and coefficients?

Check the correct answer:
a) both the Carnot efficiency and the Carnot coefficient are always less than or equal to one
b) the Carnot efficiency is always less than or equal to one but the Carnot coefficient is always greater than or equal to one
c) the Carnot efficiency is always less than or equal to one but the Carnot coefficient can be greater than, less than, or equal to one
d) the Carnot efficiency is always greater than or equal to one but the Carnot coefficient can be greater than, less than, or equal to one

Below is a space for your thoughts, including general comments about today's assignment (what seemed impossible, what reading didn't make sense, what we should spend class time on, what was "cool", etc.):


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