2 Air-Cooled Condenser The condenser is a heat exchanger where the process heat absorbed by the refrigerant is given off to the air around it. As heat is given off by the high temperature high pressure vapor, its temperature falls until the vapor condenses to a liquid. Motor driven fans ...
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 ...
The IST is an effective device which can be filled the gap between supply and demand of refrigeration30. Investigating and optimizing the cooling systems integrated with IST and WCT by two approaches has been take into account in the literature13,31. In the first one, a packaged unit (chille...
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...
A chiller system with a closed-circuit primary cooling tower.Most closed systems are equipped with a small side-stream pot feeder having inlet and outlet isolation valves for batch chemical feed. An enhancement is a combination of feeder and side-stream filter to remove those metal corrosion ...
piping system contains different types of fittings like control valves, bends, expander, reducer, chiller coil and AHU coil.Fig. 1. Schematic diagram of chilled water piping system setup by Voltas Ltd. Pune Schematic diagram of chilled water piping system setup by Voltas Ltd. Pune is shown in ...
By having elevated air temperatures in a cooled space, the supply water temperature may likewise be higher, and the need for a chiller to cool the water may be less. FIG. 3 is a plan view in schematic form of a hydronic cooling system for a data center 300. The data center 300 ...
Cooling towers are basically forced or induced draught types, the terms describing the method by which air is drawn past the sprayed water in the tower for cooling. Air-cooled condensers are also used where, in simple terms, the action of the tower is replaced by air blast cooling.Chillersca...
It was found that the heat recovery coefficient ranged between 0.542 and 0.654, and the maximum comprehensive COP of the heat recovery water-cooled air-conditioner was 4.92. Chen and Lee [200] conducted questionnaire surveys and site measurements to evaluate the hybrid space cooling and hot water...
2. SINGLE-EFFECT WATER/LITHIUM BROMIDE ABSORPTION CHILLER A diagram of a single-e!ect absorption chiller is given in Figure 2. In this paper, when the term rich solution is used, it refers to a solution with a high content in refrigerant, in this case water. In Figure 2. Schematic ...