Engineering, 31.08.2019 02:30 bussbhsvssu557
A2.5m internal diameter double walled spherical tank is used to store iced water at 0â° c. each wall is 0.5 cm thick, and the 1.5 cm thick air space between the walls of the tank is evacuated in order to minimize heat transfer. the surfaces surrounding the evacuated space are polished so that each surface has an emissivity of 0.20. the temperature of the outer wall of the tank is measured to be 25â° c assuming the inner wall of the steel tank to be at 0â° c, determine: (a) the rate of heat transfer to the iced water in the tank (b) the amount of ice at 0â° c that melts during a 24h period
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Aheat pump that operates on the ideal vapor compression cycle with refrigerant-134a is used to heat water from 15°c to 45°c at a rate of 0.12 kg/s. the condenser and evaporator pressures are 1.4 and 0.32 mpa, respectively determine: (a) the power input to the heat pump
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A2.5m internal diameter double walled spherical tank is used to store iced water at 0â° c. each wall...
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