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Elementary,Middle School,High School,College,University,PHD
| Teaching Since: | May 2017 |
| Last Sign in: | 408 Weeks Ago, 5 Days Ago |
| Questions Answered: | 66690 |
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MCS,PHD
Argosy University/ Phoniex University/
Nov-2005 - Oct-2011
Professor
Phoniex University
Oct-2001 - Nov-2016
On a cold (−10◦C) winter day, a heat pump provides 20 kW to heat a house maintained at 20◦C and it has a COPHP of 4 using the maximum power available. The next day a storm brings the outside temperature to −15◦C, assuming that the COPHP changes by the same percentage as a Carnot unit and that the house loses heat to the outside air. How cold is the house then?
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