Thermocreation

Evaporative cooling is the basic of mostly all refrigeration technology that involve a phase change in refrigerant. The Evaporative technology is used in Hot and dry areas. In these areas it is more effective and cost efficient than the air conditioners. But in humid areas, Evaporative cooling does not bring thermal comfort. Thermal comfort is a state where our body feel good with respect to temperature of surrounding. Working principle Evaporative cooling: For Moist air:     When hot and dry air pass through an evaporative pad (a wet pad, with same water quantity always during evaporative process), It take some water(wet vapor form) from pad and the heat require to evaporate water is taken from water itself. As latent heat is almost 100 times the sensible heat for water, So a small portion of water will evaporate, resulting in overall reduction of temperature of water and air leaving the air and water at wet bulb temperature of entering air. (refer to figure) For Exam

Vapor compressor refrigeration system is the most widely used refrigeration system worldwide in both commercial as well as in domestic. It has mainly four major components 1) Compressor 2)Condenser 3) Expansion valve 4) Evaporator. Working Principle: Each and every refrigerant have a certain temperature at certain pressure, where it can be converted in vapor or vice versa. Refrigerant in super heat state and low pressure suck by compressor and where it is compressed and as a result its temperature and pressure is increased by consuming high grade energy(electricity). The pressure of refrigerant after compressor is always higher than the saturated pressure of refrigerant at ambient temperature, so that it can converted into liquid in condenser. The energy consumed by the compressor to compress the refrigerant is divided in to two parts 1) The oil circulating in to compressor casing taking heat of compressor to maintain it below a specific temperature. 2) The remaining energy is

Almost every process evolve heat as a by product which is in between temperatures of 40 -70 degree C. But this heat is not useful and produce green house effect. Even the heat available from solar system also lies between 40 - 70 degree C if we use good solar panels. But its usage is limited. so we need a system which can increase this heat to 110 degree C or more which can be useful in evaporation of water or as heat pump in winters or as water heater with high flow rate.   The conventional system using electric heat which require high amount of high grade energy to raise the temperature, which again increase the green house effect and also very costly. So to avoid the  usage of high grade energy, vapor absorption system is best alternative. It does not require high grade energy and so its running cost is negligible. Vapor absorption have mainly five heat exchangers 1) Absorber 2) Generator 3) Condenser 4)Evaporator 5) Solution heat exchanger. Vapor absorption system(VAS)