Working Principle
It is a vacuum-tight device that consists of an envelope, a fluid, and a wick-like structure. The heat evaporates the fluid and the vapor is stored inside the wick in the evaporator section. The heated vapor formed in the process of evaporation flows towards the colder condenser section.
In the colder condenser, the vapor gradually condenses and gives up on its latent heat. Then the liquid that is formed in the process of condensation goes back to the evaporator through the wicked like structure.this process continues until the temperature is maintained between the evaporator and condenser.