Coils (heating, cooling)
Coils (heating, cooling) Coils are a crucial component of HVAC systems, responsible for: 1.Heat transfer: Exchanging heat between air and a fluid (water, refrigerant, or steam). 2.Heating and cooling: Conditioning air through heat transfer. Types of coils: 1.Chilled water coils: Use chilled water to cool air. 2.Hot water coils: Use hot water to heat air. 3.DX (Direct Expansion) coils: Use refrigerant to cool air. 4.Steam coils: Use steam to heat air. 5.Electric coils: Use electricity to heat air. Key characteristics of coils: 1.Material: Typically made of copper, aluminum, or steel. 2.Configuration: Can be circular, oval, or rectangular. 3.Size and capacity: Varying sizes and capacities to fit different applications. 4.Fin spacing and design: Affects heat transfer efficiency. Factors affecting coil performance: 1.Proper sizing and selection. 2.Regular maintenance and cleaning. 3.Fluid flow rates and temperatur...