AIR COMPRESSORS - OPERATING PROBLEMS

Question 1. (a) Determine the total mass of water in 10 m³ of air at a pressure of 2 bar and a temperature of 30°C with a relative humidity of 60%.
(b) If the air is cooled to 20°C at constant pressure, determine the amount of condensate which will be removed from the air.
(c) If the air is then heated to 40°C at constant pressure what will be the relative humidity of the air.

Question 2. Explain the main advantage a water-cooled aftercooler has over an air- blast type.

Question 3. Explain the procedure to follow when undertaking a leakage-rate test on a distribution system.