10.46243/jst.2021.v6.i04.pp635-640 registered

360 degree air cooler and heater is a device used to cool or heat the air according to the requirement of the user. As the years are passing by the energy consumption by humans is also increasing as a result there will be no energy or less energy left for the future generations to use. To reduce the consumption of energy a 360 degree air cooler and heater need to be used. Another reason for the use of 360 degree air cooler and heater is reduction in global warming as the conventional air conditioning system gives out Chloro-Flouro carbon resulting in depletion of Ozone layer due to global warming and also affects climate. Conventional air conditioning system uses three to five times electricity as compared to the 360 degree air cooler and heater which results in emission of a considerable amount of heat resulting in global warming.360 degree air cooler and heater is also beneficial as compared to conventional air conditioning system as it cools the air of all the four direction with the help of chilled water. During the time of winters the relative humidity of air is high which also leads to low dry bulb temperature so the cooler is in ideal condition, the efficiency is low as high relative humidity is present. Hence, using a heating coil will make the cooler more efficient even though the relative humidity of air is high and it will provide us with hot air in colder conditions. This paper will review the various findings by different researchers to study and compare various design and results obtained with 360 degree air cooler and heater.