Answer the following problems in detail.

problem 1) prepare down the disadvantages of air refrigeration system?

problem 2) What do you mean by isentropic efficiency of compression and expansion? describe in detail

problem 3) prepare down the effect of Superheating on performance of vapour compression refrigeration system?

problem 4) What do you mean by flash chamber?

problem 5) prepare down the principle of vapour absorption refrigeration system?

problem 6) From the environment consideration ammonia is taken as a better refrigerant, but still it is not used in domestic refrigerator. describe why in detail.

problem 7) How air conditioning, differ from refrigeration?

problem 8) What do you mean by effective temperature?

problem 9) What is wet bulb depression? Provide its importance.

problem 10) How will you describe desert condition of air?

problem 11) State humidity ratio, Dew point temperature, apparatus dew point Temperature and humid specific heat. What are the major factors affecting performance of simple vapour compression refrigeration system?

problem 12) describe three fluid system of refrigeration with well labelled sketch giving the function of each fluid in the system.