Use of district heating in summer for cold production with the aid of an absorption process

The possibility of using district heating for cold production for lower cold capacities was investigated. A function model with a cold capacity of 50 kW was set up which operates according to the principle of single-effect absorption and manages with low supply temperatures (80 °C). A compact layout was achieved by installing plate packages. Numerous measurements show that the layout examined displays a stable operating behavior and achieves a COP factor of about 0.8. At part-load >20% the COP factor is on the order of magnitude of 0.6.