Chilled Water Pump Types

Closed loop systems and open loop systems.

Chilled water pump types.

Upon completion of this tdp the reader should feel comfortable. Water cooled chillers are more efficient especially for large cooling loads they use the evaporation of water to dissipate heat which is less energy intensive than blowing air across a hot surface like air cooled chillers. Chilled water and heating hot water systems are typically closed loop systems. Chilled water schematic and condenser water schematic how to read and understand the engineering drawings with real world examples illustrations animations and video tutorial.

Chiller type centrifugal fast absorbers slow chiller load min load no variance full load max variance system water volume more water more thermal capacitance faster variance allowed active loads near or far from plant typical vsd pump ramp rate setting of 10 minute accel decel rates set to 600 seconds 3377. In air conditioning systems chilled water is typically distributed to heat exchangers or coils in air handlers or other types of terminal devices which cool the air in their respective space s. The water is then recirculated to the chiller to be recooled. These cooling coils transfer sensible heat and latent heat from the air to the chilled water thus cooling and usually dehumidifying the.

We will also examine types of water pumps used in hvac sys tems and their characteristics and applications. Chilled water pumps circulate the water through the pipes and heat exchanger. The principal objectives of chilled water pumping system selection and design are to provide the required cooling capacity to each load to promote the efficient use of. Grundfos offers a holistic system approach with components that adapt to their surroundings.

Our components deliver optimal performance energy efficiency and reliability. A chilled water system is a cooling system in which chilled water is circulated throughout the building or through cooling coils in an hvac system in order to provide space cooling. The units are generally large end suction or horizontal split casing pumps running at 1450 rpm. Covering chillers pump sets ahus risers primary and secondary systems cooling towers and bypass lines.

Pump basics pipe sizing and a pump selection example complete the tdp. This guide covers the design and selection of a chilled water pump. The chilled water pump is used to circulate chilled water in a closed system. The chilled water pump is a part of an overall chilled water system that often includes a chiller piping valves fittings expansion tank air handling units and fan coil units.

In the hvac industry closed loops are systems in which the static elevation is not accounted for in head pressure calculations. How to decide between air cooled and water cooled chiller types and application guide. Tions at various equipment are covered along with piping arrangements for chilled water systems.