AIRCRAFT REFRIGERATION

  Need of Aircraft Refrigeration In general aeroplane cruises at an altitude of 10000m above sea level where pressure is 0.15 bar and temperature is -50˚C. Travelling in such conditions is not possible for humans, A jet fighter travelling at 950 km/hr needs a cooling system capable of 10-20 TR capacity. Also, there is a need to dissipate the heat load from electronic devices. In addition to this, there are solar radiations coming to the plane surface directly of about 1000W/m². Also, there are occupants from where heat needs to be extracted. So definitely there is a need for an aircraft refrigeration system. Why air cycle? We can have many other cycles also but why do we want to use air as a refrigerant for cooling in an aeroplane. First of all, the air is cheap then it is environmentally friendly, safe and non-toxic, in addition to this it is also inflammable. Air cycle equipment is extremely reliable because the pressure ratio in the air cycle is less in comparison ...