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A heat pump with a coefficient of performance of 3.5 provides energy at an average rate of 70,000 kJ/h to maintain a building at 20oC on a day when the outside temperature is -5oC. If electricity costs 8.5 cents per kW.h,
(a) determine the actual operating cost and the minimum theoretical operating cost, each in $/day.
(b) compare the results of part (a) with the cost of electrical-resistance heating.
what is the suction specific speed for the pump that is operating under the conditions given in problem 14.16? is this
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