Absorption Chillers

Thermax is the first manufacturer of absorption chillers in the world to commercialise the ultimate in absorption technology – the Triple-Effect Absorption Chiller. This is a major breakthrough in the field of refrigeration and air-conditioning. Triple-effect absorption chillers have a Coefficient of Performance (COP) of 1.8, which is nearly 30% higher than that of the double-effect absorption chillers. This helps the user to significantly reduce the energy requirement for cooling.

Product Information

Cooling capacity: 100 – 1000 TR (350 – 3500 kW)

Chilled water
Lowest outlet temperature: 5°C
Chilled water delta T – 30°C max

Cooling water
Design inlet temperature: 25°C – 32°C
Minimum inlet temperature: 10°C

Driving heat source
Steam (Pressure: 10 – 25 bar.g, Dry saturated) or Hot water (Inlet temperature: 190°C – 225°C)

• Highest possible COP
• Online concentration measurement
• Stainless-steel tubes for generator
• Stainless-steel plate-type solution heat exchangers
• Advance series flow technology
• VFD for solution pump
• PLC-based control panel
• BMS connectivity
• Colour touch-screen operator interface

Thermax triple-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 does not occur simultaneously. Due to this the rate of corrosion is negligible compared to the para-flow or reverse-flow technologies. Coupled with an accurate online concentration measurement, the Thermax triple-effect absorption chillers are extremely user friendly and significantly reduce user intervention and down time.

The variable frequency drives on solution pumps help to improve the COP during part loads and also offers a stable operation. It also increases the life of the solution pump. Ferritic stainless-steel tubes in generators of the triple-effect machine have thermal expansion coefficient similar to carbon steel and thus helps to avoid stress corrosion cracking. The plate-type solution heat exchangers increase the COP by offering maximum internal heat recovery. The stainless-steel plates of these solution heat exchangers ensure long life and reliability.

The operation of the absorption chiller is controlled by a stand-alone PLC-based control panel. The touch screen HMI provided on the control panel enables the operator to set the necessary set points and to see all the operating parameters, statuses, alarms, and trip logs. The chiller is also equipped with the necessary level controls, temperature sensors, flow-safety devices etc. to control and safeguard the chiller. For viewing the operating parameters of the chiller from a remote location, MODBUS RTU or Ethernet connectivity is available.

Thermax manufactures these Triple-effect Chillers in India and supplies them to more than 85 countries across the globe.

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