Air Cooled Scroll Chillers For A Process Of Cooling Applications

Air cooled chillers serve the cooling purposes of large office buildings

, commercial and industrial facilities. They can be installed on the roof or ground for process cooling applications. They are effective for installations up to 1000 tons. They can withstand the rigours of hot and cold weather besides heavy rains. Where water is scarce air cooled chillers are the solution to cooling. Air cooled chillers are more effective than water cooled systems and used widely in the USA, Middle East and in India.

Air cooled scroll chillers are simple to operate having few parts. Power consumption and maintenance costs are minimized and are useful in applications like low temperature process, heat recovery, thermal storage and ice-making.

Chilled water is provided by the air-cooled scroll chiller for all air conditioning applications using central station air handling or terminal units. The chillers have a hermetic scroll compressor, an air-cooled condenser and control panel. They are sometimes designed to be rugged enough for outdoor installation.

Eliminating need for cooling towers and designated spaces, air cooled scroll chillers are suitable for industrial plants of all sizes. As a large amount of heat will be radiated to the atmosphere an ideal air circulation and heat transfer process have to be in place. The refrigerant condensing temperature has to be higher than ambient temperature of 95 o F. If enough circulation is not available, flow restriction and recirculation will create problems.

The components of the scroll chiller decide its efficiency and functionality. The independent twin circuit design ensures reliable performance as one circuit can be shut down when load is less, hence saving on power. Ideal even if one circuit breaks down. The scroll compressor incorporates a motor and hybrid-wrap scroll design to reduce energy consumption besides featuring optimum pressure ratio suiting refrigeration applications.

The multiple circuit shell and tube evaporator made of copper tubes are resistant to hard water and provide turbulence to the refrigerant thereby increasing the efficiency. The air cooled condenser with fins made of special grade aluminum can withstand 60 o C temperatures, hence suitable for hot climes.

Use of anti-corrosion material, safety switches, controllers to switch ON/OFF fans depending on load etc. make these chillers suitable for industrial cooling applications. Most air cooled scroll chillers can be monitored remotely as the control panel microprocessor sends real time information to engineers who can monitor the device and take proactive action when required.

by: flam

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