Mode of operation

Vaporous ammonia is evaporated from the ammonia-rich solution in the generator by supplying industrial waste heat. The remaining poor solution is pumped from the low-pressure level to the high-pressure level and preheated in an internal heat exchanger by internal heat recovery.

The vaporous ammonia is condensed in a condenser, releasing heat to the environment. The liquid refrigerant is then also pumped from the low-pressure level to the high-pressure level and then evaporated in an evaporator by further supply of industrial waste heat. In the absorber, the vaporous ammonia dissolves in the poor solution.

This releases the heat of the solution at a high temperature, which is released into the heating medium. The ammonia-rich solution is then cooled down in the internal heat exchanger and expanded back to the low-pressure level by means of a throttle valve.