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Unformatted text preview: ME 212 HOMEWORK 4 1) In the cooling tower seen below, 1.15 kg of water is sprayed per 1 kg of air entered. Air is entered to the cooler with a temperature of 20°C, % 60 relative humidity and exits at 30°C, % 90 relative humidity. Feedwater is at a temperature(T5) of 20°C and the water that is aimed to cool has a temperature(T3) of 30°C. Assuming the pressure is constant at 1 atm, calculate a. Temperature of state 4 ? b. Amount of water that vaporized ? ...
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- Spring '08