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Here are some good questions for those seeking to use water in an attempt to recover waste heat:
What is the total heat energy of one mole of exhaust gas at 600 C and 150 kPa? You may assume, for purposes of this question, that exhaust gas is 80% diatomic nitrogen, 11% carbon dioxide, and 9% water.
What is the total heat energy of a 1/10th of a mole of liquid water at 30 C?
Mix the two together. What is the final temperature of the resulting mixture? What percentage is liquid? What is the final pressure? Is this pressure higher or lower than the pressure of the original exhaust gas?
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