A heat pump receives heat from a lake that has an average
Chapter 6, Problem 151P(choose chapter or problem)
A heat pump receives heat from a lake that has an average wintertime temperature of \(6^{\circ} \mathrm{C}\) and supplies heat into a house having an average temperature of \(23^{\circ} \mathrm{C}\). (a) If the house loses heat to the atmosphere at the rate of \(52,000\ kJ/h\), determine the minimum power supplied to the heat pump, in \(kW\). (b) A heat exchanger is used to transfer the energy from the lake water to the heat pump. If the lake water temperature decreases by \(5^{\circ} \mathrm{C}\) as it flows through the lake water-to-heat pump heat exchanger, determine the minimum mass flow rate of lake water, in \(kg/s\). Neglect the effect of the lake water pump.
Equation Transcription:
6°C
23°C
5°C
Text Transcription:
6 degree celsius
23 degree celsius
5 degree celsius
52,000 kJ/h
kg/s
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