A passive solar house that is losing heat to the outdoors
Chapter 7, Problem 202P(choose chapter or problem)
Problem 202P
A passive solar house that is losing heat to the outdoors at 3°C at an average rate of 50,000 kJ/h is maintained, at 22°C at all times during a winter night for 10 h. The house is to be heated by 50 glass containers, each containing 20 L of water that is heated to 80°C during the day by absorbing solar energy. A thermostat controlled 15 kW backup electric resistance heater turns on whenever necessary to keep the house at 22°C. Determine how long the electric heating system was on that night and the amount of entropy generated during the night.
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