An air-conditioning system takes in outdoor air at 10 celsius and 30% relative humidity at a steady rate of 45 m 3 /min, and conditions it to 25 celsus and 60% relative humidity. the outdoor air is first heated to 22 celsius in the heating section and then humidified by the injection of hot steam in the humidifying section. assume that the entire process takes place at a pressure of 100 kpa.

Ajournal bearing has a journal diameter of 3.250 in with a unilateral tolerance of 20.003 in. the bushing bore has a diameter of 3.256 in and a unilateral tolerance of 0.004 in. the bushing is 2.8 in long and supports a 700-lbf load. the journal speed is 900 rev/min. find the minimum oil film thickness and the maximum film pressure for both sae 20 and sae 20w-30 lubricants, for the tightest assembly if the operating film temperature is 160°f. a computer code is appropriate for solving this problem.