Adsorption Chiller Comparison-innovative green technology: Article | Bryair
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Adsorption Chiller Comparison

Why Adsorption is a Better Choice ?

Adsorption versus Absorption Comparison


Factors Adsorption Chillers Absorption Chillers
Life Expectancy Greater than 25 Years 7 to 9 Years
Maintenance Negligible Maintenance Require High Maintenance
Temperature (Hot Water)
Down to 50°C (122°F) Shuts down at 82°C (180°F),
Needs Back-up Heater
Desiccant Used Silica Gel (Inert) Lithium Bromide
(Highly Corrosive)
(Periodic Maintenance)
Not Required Heat Exchangers, Boilers,
Absorbent Replacement Required


Adsorption versus Mechanical Chiller Comparison

Attribute Adsorption Chiller Mechanical Chiller
Sound Pressure Level Very low <50 db (A) Loud > 80db (A)
Operating Cost Negligible High
Maintenance Virtually none Seasonal maintenance required.
Annual oil analysis Replace oil every
5 years Periodic tear down and rebuild
required Replacement of bearings
every 15 years
Chemistry Municipal water and
special silica gel-S2
HFC and HCFC refrigerant
with synthetic oils 2
Energy Requirements Hot water:
50°C to 93°C
(122°F to 200°F)
230/415 – 3Ph – 50Hz
460 – 3Ph – 60Hz
240 – 3Ph – 60Hz
Cooling Water
Preferably < 30°C to 10°C
(85°F to 50°F) Lower
temperatures increase
capacity of the system
30°C to 18°C
(85°F to 65°F) minimum
temperature – unstable at
low temperatures
End-of-life No special disposal
Certified technician required
to reclaim all refrigerant for
release to the atmosphere










The Bry-Air Adsorption Chiller is based on an innovative green technology, and is the first of its kind in India, and is being manufactured in India.

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