Star Refrigeration Systems

A chiller is a machine that removes heat from a liquid coolant via a vapor-compression, adsorption refrigeration, or absorption refrigeration cycles. This liquid can then be circulated through a heat exchanger to cool equipment, or another process stream (such as air or process water). As a necessary by-product, refrigeration creates waste heat that must be exhausted to ambience, or for greater efficiency, recovered for heating purposes. Vapor compression chillers may use any of a number of different types of compressors. Most common today are the hermetic scroll, semi-hermetic screw, or centrifugal compressors. The condensing side of the chiller can be either air or water cooled. Even when liquid cooled, the chiller is often cooled by an induced or forced draft cooling tower. Absorption and adsorption chillers require a heat source to function.

Heat pumps offer an energy-efficient alternative to furnaces and air conditioners for all climates. Like your refrigerator, heat pumps use electricity to transfer heat from a cool space to a warm space, making the cool space cooler and the warm space warmer.
A heat pump extracts heat from the cold outside air and transfers it inside our home. To this end, a compressor inside the device uses electricity to increase the temperature of the heat extracted from the outside air. The heat pump can also provide cooling by transferring warm indoor air to the outside.

 heat pump is basically an air conditioner that can also work in reverse to provide heat. In warm weather, the heat pump absorbs heat from the air inside and moves it outside, thereby providing air conditioning. In cooler weather, the heat pump provides heat by removing heat from the air outside and moving it inside.