Energy
Techonologies - Air Ambiator : Cost Effective
Air-Conditioning
Description
An Indian company with long expertise
in energy efficiency and eco friendly technologies has
developed air ambiator, a low-cost, low energy intensive
alternative to conventional air conditioning systems
and is appropriate for most air-cooling applications.
Unlike most compressor based air conditioning systems
using CFCs, the ambiator does not use a compressor.
The ambiator available in 1 tonne
modules, can be used in almost any industry where there
is a need for either cooling or pressurisation or dust
proofing a particular area. When compared with conventional
air-conditioning, which can maintain a temperature of
24-24 degree C and 30-60% relative humidity (rH), the
Ambiator can provide 26 degree C for 96% of the time
throughtout the year and rH in the range of 60-70%.
The air ambiator works on the principle
of two-stage evaporative cooling:Stage 1: Sensible heat
exchanger: The air from the atmosphere is sucked in
through 20 micron dust fillers and is forced across
a heat recuperater consisting of a cross-flow, wet plate
plastic heat exchanger with an efficiency of 60%. This
air is never in direct contact with the water passing
through the other side of the heat exchanger. The wet
side of the exchanger is covered with a hydrophilic
material, which maintains a thin film of water that
evaporates when the sensible heat of the water is transferred
to the wet side. A portion of the cooled air picks up
the evaporating water and exhausts it out. About 15-20%
of the air is used up this way. The air that comes off
the heat exchanger is significantly colder than the
ambient air.
Stage 2: Adiabetic heat exchanger: The air coming out
of the heat recuperater is passed through an evaporative
cooling module, which consists of a durable cellulose
media (a honeycomb) and an adiabetic exchanger constantly
kept wet with a water drip. Part of the sensible heat
in the air is converted into latent heat and the air
is finally delivered into the conditioned space at a
significantly lower temperature than the intake.
Areas of Application
: Energy efficiency, Air-conditioning, Electrical
Advantages:
The major advantage of air ambiator systems is
its high power savings. The average energy efficiency
ratio of the ambiator system varies from 30-50 BTUs
(British Therrmal Units)/Watt for comfort cooling applications.
This is equivalent to 80% power saving when compared
with conventional air-conditioning systems.
Stage of DevelopmentIt
is a commercialised technology.
Economic Data
Can be arranged on request
Transfer Forms:
Know-how and Technology licensing outside India. In
India Franchising Arrangement can be considered
Main Application:
Energy
Contact:
Technology Bureau for Small Enterprises
APCTT Building, Qutub Institutional Area
P.O. Box - 4575
New Delhi - 110016, India
