About

• A chiller circulates a liquid through a closed loop.
• As the liquid absorbs heat from a process or equipment, it becomes warmer.
• The warmed liquid then passes through an evaporator, where a refrigerant absorbs the heat, causing the refrigerant to evaporate into a gas.
• The gas is then compressed, increasing its pressure and temperature.
• This hot, high-pressure gas moves to a condenser, where it releases the heat to the outside environment via air or water.
• The refrigerant condenses back into a liquid and passes through an expansion valve, which lowers its pressure and temperature, preparing it to absorb heat again in the evaporator.

• Air-Cooled Chillers:Dissipate heat to the ambient air using condenser coils and fans. They are common for small to medium applications and do not require a water source for cooling.
• Water-Cooled Chillers:Use water and cooling towers to reject heat. They are typically more efficient than air-cooled chillers and are suited for large-scale industrial and commercial applications.
• Evaporatively Cooled Chillers:Use the evaporation of water to cool a coil. They offer higher efficiency than air-cooled chillers but generally lower than water-cooled systems.
• Thermoelectric Liquid Chillers:Use thePeltier effectto cool or heat a liquid circuit. They are used for spot cooling in applications where space is limited.

• HVAC:Large-scale air conditioning for commercial buildings.
• Industrial Manufacturing:Cooling machinery for plastics injection molding, metalworking, laser cutting, and die casting.
• Food and Beverage:Cooling ingredients and maintaining process temperatures.
• Medical and Pharmaceutical:Maintaining precise temperatures for medical imaging, diagnostics, and laboratory chemicals.
• Data Centers:Cooling server rooms.