A water cooling tower for a power plant cools 45C liquid water by evaporation The tower receives air at 19 5C, 30 , 100 kPa that is blown through over the water such that it leaves the tower at 25C, 70 The remaining liquid water flows back to the condenser at 30C having given off 1 MW Find the mass flow rate of air, and the amount of water that evaporates

Question: A water-cooling tower for a power plant cools 45C liquid water by evaporation. The tower receives air at 19.5C, = 30%, 100 kPa that

A water-cooling tower for a power plant cools 45°C liquid water by evaporation. The tower receives air at 19.5°C, ϕ = 30%, 100 kPa that is blown through/over the water such that it leaves the tower at 25°C, ϕ = 70%. The remaining liquid water flows back to the condenser at 30°C having given off 1 MW. Find the mass flow rate of air, and the amount of water that evaporates.

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