Calculate the net rate of entropy change for the process
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Ambient moist air enters a steady-flow air conditioning unit at 102 kPa, 30oC, with 60% relative humidity. Determine the rate of heat transfer for this process.
The Dieu Company had sales of $1 million in 1996, with 60% of its sales made on credit. If the average accounts payable are $100,000.
A room with air at 40% relative humidity, 20oC having 50 kg of dry air is made moist by boiling water to a final state. How much water was added to the air?
All the water evaporates, and the air leaves at 40oC. What is the exit relative humidity and the heat transfer?
A large air separation plant takes in ambient air (79% nitrogen, 21% oxygen by volume). Calculate the net rate of entropy change for the process.
What is the ratio of the two flow rates? To what temperature must the first stream be cooled?
A 1-lbm/s flow of saturated moist air (relative humidity 100%) at 14.7 psia and 50 F goes. What is the exit relative humidity and how much power is needed?
If I have air at 14.7 psia and (a) 15 F, (b) 115 F, and (c) 230 F, what is the maximum absolute humidity I can have?
The system is cooled until the water just begins to condense. Determine the final temperature in the tank and the heat transfer for the process.
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