ABSORPTION CHILLING ( COOLING WITH THE HELP OF HEAT)

In 1878, French engineer Augustin Mouchot demonstrated the principle at the Paris World Exhibition, producing ice blocks using a solar-driven adsorption chiller.

 to make the world grow toward a sustainable future and clean energy, there is a phenomenon called absorption cooling.

according to this, the heat generated by solar thermal (thermosiphon) system is used as the fuel for the refrigeration, generally, we use ammonia and water as the heating liquid.

this process happens in three stages 

1. evaporation

2. absorption

3. refrigeration

so if the water is to be used as an environmentally friendly, non-toxic refrigerant, a vacuum is needed to make it evaporate at ambient temperatures. normally this would require a thick-walled container to withstand the atmospheric pressure. This would drive up the size and weight of smaller installations to a point where it would become uneconomical.

to fight this problem we use stainless steel which has high strength and it can withstand the atmospheric pressure with comparatively low thickness than other metals.