VAM – Vacuum Absorption Chillers

Absorption chillers use heat to drive the refrigeration cycle, they produce chilled water while consuming just a small amount of electricity to run the pumps on the unit. Absorption chillers generally use steam or hot water to drive the lithium bromide refrigeration cycle but can also use other heat sources.
Absorption technology reduces the requirement for electric energy and can give owners flexibility where electrical demand and consumption are expensive or in short supply. It is not only reduces greatly the cost for electricity and operation fees in regions where there are rich steam resources, but also compensates the peak-valley load difference. When the hot summer rolls in, shortage of electric power will poses a great worry for various cities. These absorption chillers are widely applied in industries, such as precision machinery manufacturing, instruments & meters, aviation & aerospace, textiles, electronics, electric power, metallurgy, pharmaceuticals, cigarettes, chemicals, hospitals, food, etc.
A single-stage absorption chiller uses low pressure steam or low grade hot water to drive the absorption cycle. This absorption chiller is particularly useful for energy conserving applications such as heat recovery or process applications where a low cost heat source is available.
Two-stage chillers use the efficient series solution flow cycle, which improves the unit efficiency over 50% compared to single effect models. These two-stage chillers are ideal when medium pressure steam or 350°F (176.7°C) hot water is available.
Direct-fired absorption chillers offer you a choice in how energy is consumed to produce chilled water. The chiller uses natural gas or other fuels to fire the absorption refrigeration cycle. Direct-fired absorption chillers can be used as a primary component for hybrid plants or other applications where electrical demand and consumption are expensive or in short supply. The efficiency of the double-effect cycle used in these direct-fired absorption chillers makes them competitive with electric chillers in many regions of the world where electricity prices have risen dramatically over the last decade. These machines can act as a chiller and/or heater to supply cold or hot water to condition the building during the summer or winter.