Chillers
Introduction
Chillers are crucial industrial machines used to remove heat from a liquid via a vapor-compression or absorption refrigeration cycle. The chilled liquid is then circulated through heat exchangers to cool machinery, products, or facilities.
A chiller is a cooling system that removes heat from a process or space and transfers it elsewhere. Commonly used in HVAC systems, industrial processing, plastic manufacturing, and food and beverage sectors.
Types of Chillers
A. By Technology
- Air-Cooled Chillers – Use ambient air to dissipate heat.
- Water-Cooled Chillers – Use water from a cooling tower to reject heat.
- Absorption Chillers – Use heat as energy input, often for waste heat recovery.
B. By Material
- Steel Body Chillers – Strong, durable, and widely used.
- Aluminum Chillers – Lightweight but less durable.
- Copper Tube Chillers – Excellent thermal conductivity.
Applications in Various Industries
- Plastic Industry – Injection molding cooling.
- Pharmaceutical Industry – Temperature-controlled processing.
- HVAC Systems – Commercial and industrial buildings.
- Food & Beverage – Cooling in bottling and storage.
- Laser and Welding Machines – Thermal control.
Material Selection Considerations
- Corrosion Resistance – Especially for water-contact parts.
- Heat Conductivity – For faster cooling efficiency.
- Durability & Maintenance – Material should resist scaling and thermal stress.