6-49 A heat pump is used to maintain a house at a constant temperature of 230C. The house is losing heat to the outside air through the walls and the windows at a rate of 85,000 kJ/h while the energy generated within the house from people, lights, and appliances amounts to 4000 kJ/h. For a COP of 3.2, determine the required power input to the heat pump.

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A: Given: Thermal conductivity of steel, k = 58.7 W/m.K Thickness of fin, w = 25 mm ⇒0.025 m Length of…

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Q: 2.6 A cylinder 10 m high, with a cross-sectional area of 0.1 m², has a mass-less piston at the…

A:

Q: the

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A: For a detailed solution, please see the attached files.

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Q: 3. A sphere of radius 3 in is initially at a uniform temperature of 70 F. How long after being…

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Q: (2.11) A graphite heat exchanger is constructed by drilling circular channels in a solid block of…

A:

Q: 15.0 g sample of aluminum, whose temperature is 4.0 °C, experiences an energy change of 189 J. The…

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Q: 3 An electrical current of 700 A flows through a stainless steel cable having a diameter of 5 mm and…

A:

Q: One side of a copper block 5 cm thick is maintained at 250°C. The other side is covered with a layer…

A:

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