HVAC System

what is the meaning of duct

Ductwork is used to convey air between the air systems and the terminal equipment and spaces which these air systems serve. Construction Common cross-sectional shapes for ductwork are rectangular, round, and flat oval. Rectangular ductwork is normally used for main ducts and runouts to air devices (air inlets and outlets) that have a rectangular neck. …

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what are cooling towers used for

Cooling towers are common components of centralized cooling systems. Cooling towers are used either in conjunction with water-cooled chillers for chilled water systems or with plate and frame heat exchangers for water source heat pump systems. Cooling towers are used for HVAC applications in conjunction with water-cooled HVAC equipment to cool water by exposing it …

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what does a cooling tower do

Cooling towers are common components of centralized cooling systems. Cooling towers are used either in conjunction with water-cooled chillers for chilled water systems or with plate and frame heat exchangers for water source heat pump systems. Cooling towers are used for HVAC applications in conjunction with water-cooled HVAC equipment to cool water by exposing it …

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what is a cooling tower

Cooling towers are common components of centralized cooling systems. Cooling towers are used either in conjunction with water-cooled chillers for chilled water systems or with plate and frame heat exchangers for water source heat pump systems. Cooling towers are used for HVAC applications in conjunction with water-cooled HVAC equipment to cool water by exposing it …

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chiller design

The following are design considerations for chillers. Chiller selectiona. Type of compressor: Although it varies from one manufacturer to another,the type of compressors used and the associated range of chiller capacitiesare generally as follows:(1) Reciprocating compressors: 25- to 75-ton chillers(2) Scroll compressors: 25- to 500-ton chillers (3) Screw compressors: 75- to 800-ton chillers(4) Centrifugal compressors: …

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