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Steam Fired Chillers

Thermax offers a range of steam driven Vapour Absorption Machines driven by saturated steam pressure at 0 Kg/cm2 to 26 Kg/cm2. Steam driven VAMs are categorised as Single effect, Double effect and Triple effect depending on the heat source temperature. The source of heat for steam driven VAMs can be:
-Steam from boiler
-Steam from processes
-Steam from cogeneration plants
-Steam from turbines
Many industries like Food & Beverages, Paper & Pulp, Pharma, Steel, Dairy, Refinery & Petrochemical, Fertilizers, Textiles, commercial and many more have benefitted from steam-driven VAMs.
Single Effect Steam Fired Chiller (SS Series)
Single effect steam driven machine is one of the oldest and most established absorption machine, driven by low grade energy and consuming minimum power. In single effect technology, the gain in concentration of the absorbent is achieved using only one generator.
Operating Range
Capacities: From 100 to 2180USRT (350 – 7650kW)
Steam pressure: From 0 to 3.5 bar.g( 0 to 50 psig)
Chilled water temperature: Up to 1ºC (34ºF) and -2ºC (28.5ºF) with brine
COP: 0.70-0.75
Heat source:
    •   Steam from turbine extraction
    •   Flash Steam
    •   Low pressure vapours from process
        o   Vapour from Continuous polymerization column
        o   Vapour from potato fryers, etc
Double Effect Steam Fired Chiller (2B Series)
Double effect steam driven absorption machines are one of the most efficient cooling solutions for industrial applications. In the double effect machines, the gain in concentration is achieved in two steps. The primary generator (referred as High Temperature Generator or HTG) produces vapour, whose latent heat is transferred to lithium bromide in secondary generator (referred as Low Temperature Generator or LTG).
Thermax double effect absorption chillers are designed based on its proven Advanced Series Flow technology. This ensures that the highest concentration and highest temperature of Lithium Bromide solution doesn't occur simultaneously. Due to this the rate of corrosion is negligible compared to the para flow or reverse flow technologies.
Operating Range
  • Capacities: From 50 to 2500USRT (175– 8800 kW)
  • Heat source: Steam
  • Steam pressure: From 3.0 to 10.0 bar.g( 43 to 140 psig)
  • Chilled water temperature: Up to 1ºC (34ºF) and -2ºC (28.5ºF) with brine
  • COP: 1.38 – 1.43