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A chiller boiler system includes a chiller, a boiler, pumps and HVAC controls in a single engineered package.  Boiler chiller systems are designed for larger commercial structures and industrial use.  Chiller boiler systems are hydronic systems.  They use water or some other liquid instead of air to heat and cool a facility.  Water is used to radiate heating and cooling, it allows for multiple zones, decreases energy use, and is more space-efficient to transfer heat around, into, and out of a building.

boiler chillerA chiller removes heat from a liquid via a vapor-compression or absorption refrigeration cycle.  Chilled water is used to cool and dehumidify air in mid- to large commercial, industrial and institutional facilities.  Water chillers can be water-cooled, air- cooled, or evaporative cooled.    Water from the chiller is distributed to heat exchangers or coils in air handlers to cool the air in spaces.  The coils transfer heat from the air to the chilled water, cooling and usually dehumidifying the air.  The water is then recirculated back to the chiller to be re cooled via a cooling tower.

Chilled water from chillers is pumped through process or laboratory equipment in industrial applications.  The chilled water is also used to control cooling of products, mechanisms and factory machinery.

A boiler heats a fluid for the purpose of water heating, central heating, boiler-based power generation, cooking and sanitation.  Like chilled water, heated water is distributed to coils to heat the air in spaces and recirculated back to the boiler to be reheated.

Boilers are also used in combination with steam generators to create steam which is used for industrial purposes to drive turbines to generate power or drive equipment.  There are a number of different types and configurations for boilers and steam generators and they use a variety of materials depending on the size, heat, pressures desired, and liquids being transferred or fuels used to create heat.

Bath engineers have provided designs for chiller boiler systems of various sizes.  They have also provided analysis of chiller boiler efficacies and reported on findings and recommendations.  Our engineers have also evaluated chiller boiler systems and infrastructure to provide an analysis on future chiller boiler needs based on future construction additions to single buildings or campus wide construction.

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