HVAC Types and Components Quiz

HVAC Cooling Systems

• The main purpose of a water chiller in HVAC cooling systems is to cool water, which is then pumped to various locations to cool air through a heat exchanger.

Water Chillers

• The thermodynamic process that occurs in water chillers is vapor compression refrigeration.
• Water chillers typically consist of an evaporator, compressor, condenser, and expansion device.

Air Handling Units (AHUs)

• An Air Handling Unit (AHU) typically consists of components such as a fan, coils, filters, and a housing.

Fan Coil Units (FCUs)

• The primary function of a Fan Coil Unit (FCU) is to distribute cooled air from a central chiller or air handling unit to individual rooms or zones.

Cooling Technologies

• Magnetic refrigeration is a cooling technology based on the magneto caloric effect.

Air Conditioning Systems

• Four types of air conditioning systems mentioned in the text are window units, split units, packaged units, and chill water systems.
• The most popular type of air conditioning system for commercial and factory buildings is a chilled water system.

Vapor Compression Refrigeration

• The purpose of the condenser in a vapor compression refrigeration system is to dissipate heat from hot refrigerant gas to the surrounding air.
• The expansion device in a vapor compression refrigeration system reduces the pressure of the refrigerant, allowing it to expand and become cold.

Vapor Compression vs. Vapor Absorption

• The main difference between a vapor compression refrigeration system and a vapor absorption refrigeration system is the method of refrigeration, with vapor compression using a compressor and vapor absorption using heat.

Chilled Water Systems

• The main components of a chilled water system in HVAC are a chiller, pumps, and piping that circulate chilled water to air handling units or fan coil units.
• A major advantage of a chilled water system compared to other air conditioning systems is its ability to provide simultaneous heating and cooling.

Split Units and Packaged Units

• The main difference between a split unit and a packaged unit in HVAC systems is that a split unit has separate indoor and outdoor components, while a packaged unit has all components in one package.
• The two main components of a split unit air conditioner are an outdoor unit containing the compressor and condenser, and an indoor unit containing the evaporator and fan.

Room Temperature Control

• A type of air conditioning system that allows you to control the temperature in individual rooms or spaces is a fan coil unit (FCU).

Window Unit Disadvantages

• A key disadvantage of a window unit air conditioner is its limitations in terms of capacity and aesthetics.

System Selection

• A type of air conditioning system best suited for projects where better performance in freezing temperatures is required is a chilled water system.

Test your knowledge of HVAC types and components including Vapour Compression Refrigeration, Vapour Absorption Refrigeration, and Direct Expansion System (DX). Explore concepts like heat absorption, heat rejection, and work input in HVAC systems.