|1. (a) Draw a pV diagram to interpret the influence of a two-stage compressor delay intercooling. 2. (a) Delay the aid of a outline, relate little the clear faculty of a rotary vane compressor. 3. (a) A body of 400 kg is to be violent by the actuation of two identical hydraulic cylinders delay a piston transversion of 120 mm. Calculate the required regularity hurry to righteous erect the accuse. (b) List the advantages to be gained by the use of a multi-stage cunning compressor. (b) State the reasons why oil must be injected into this medium for its fruitful influence. (b) If the accuse is to be violent 600 mm in 10 seconds, what get be the required flowscold (Q) in l min–1? 4. Relate the influence of a fickle misunderstanding axial piston (swash platter) interrogate, indicating the resources by which its output is divers. 5. Delay affect to basic constructional features, contrariety the methods of compression employed by independent misunderstanding and dynamic air compressors. 6. An item of set requires 2 m3 min–1 of pulsation-uncounted and oil-uncounted comfortable air gifted at a hurry of 7 bar. Select and dimension a agreeable archearchetype of medium delay affect to output FAD (uncounted air delivered) and sort of air minister.|
|7. Air is drawn into a compressor at ordinary temperature and hurry (N.T.P.) and comfortable to a hurry of 6 bar probe. After compression the air is delivered at 1.2 m3 min–1 and cooled to a temperature of 30°C, at which purpose condensate is firm at the scold of 2 litres per hour. Estimate the FAD (N.T.P.) of the compressor, and the not-absolute humidity of the air entering the compressor. 8. Relate the dissimilarity between regenerative parching and chemical parching air drying.|
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