Typical COP for Different Chiller Types Type of chillersRange for COP Small electric chillers Air cooled 2.2–3.2 Large electric chillers Air cooled 3.7–4.1 Water cooled 4.6–5.3 Absorption chillers Single-effect 0.4–0.6 Double-effect 0.8–1.1 Engine-driven chillers 1.2–2.0 COP, Coefficient of ...
Figure1shows a schematic representation of the air-cooled chilled water HVAC unit being studied. The unit consists of 3 loops namely, the chiller (first loop), the secondary fluid loop, and the air handling unit loop. The first loop is the typical vapour compression refrigeration system operatin...
Per Ma and Wang, chiller performance degradation can be detected significantly by using a hybrid quick search (HQS) method through characterizing the PIs of multiple operational parameters, such as the temperature of the condenser water supply [76]. A high chiller's load affects the performance ...