Question: In Example 16.10, we found that for typical temperatures of the hot and cold reservoirs, the theoretical efficiency of a home heat pump can be

In Example 16.10, we found that for typical temperatures of the hot and cold reservoirs, the theoretical efficiency of a home heat pump can be quite large. Investigate the efficiency obtained with real heat pumps (i.e., do some research on the Internet). How does the efficiency of a real heat pump compare with the theoretical limit in Equation 16.28? What factors make the efficiency of a real heat pump smaller than this theoretical limit?

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