A NATO base in northern Norway is warmed with a heat pump that uses 7.0C ocean water as the cold reservoir. Heat extracted from the ocean water warms fluid to 80C; this warmed fluid is used to heat the building. When the system is working at full capacity, 2000 kW of heat are delivered to the building at the cost of 600 kW of electric energy. a. What is the actual coefficient of performance of the system? b. What is the theoretical maximum coefficient of performance of the system?
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