Answer to Question #348809 in Molecular Physics | Thermodynamics for Dale

Question

A heat pump is used for heating a building. It supplies 50,000 kJ/hr of heat to the building at 20°C. The outside air is at -5°C. Determine; a) the heat taken from outside air per hour, and b) the horsepower of motor required

Answer 1

$P=50000~\frac{kJ}h=18.9~hp.$