| Compression chillers | Absorption chillers | Adsorption chillers |
Compression type | Mechanical compression | Thermal absorption loop | Thermal adsorption of water steam |
Energy source | Electrical energy | Heat energy 85˚C - 150˚C | Heat energy 55˚C - 95˚C |
Cooling agent | Chlorinated free hydrocarbons | Water with LiBr or NH3 as absorption agent | Water with solid as adsorption agent |
Coefficient of Performance (COP) | 1.3 - 1.65 | 0.6 - 1.0 | 0.4 - 0.6 |