Heating Ventilation and Air Conditioning Topics
- AC
- Abbreviation of Air Conditioning.
- Air Changes per Hour
- The number of times per hour that the volume of a specific room or building is supplied or removed from that space by mechanical and natural ventilation.
- Air Conditioner
- An appliance, system, or mechanism designed to dehumidify and extract heat from an area. Usually this term is reserved for smaller self contained units such as a residential system.
- Air Conditioning
- The process of treating air to simultaneously control its temperature, humidity, cleanliness, and distribution to meet the requirements of the conditioned space.
- Air Conditioning Load
- The amount of heat per unit time imposed on a refrigeration system or the required rate of heat removal.
- Air to Air Heat Exchanger
- A method of heat recovery in which the intake and exhaust ducts are brought together at the heat exchanger.
- British Thermal Unit
- The amount of heat required to raise the temperature of 1 pound of water by 1° Fahrenheit.
- CCHP
- Abbreviation of Combined Cooling Heat and Power.
- Chiller
- A device that removes heat from a liquid via a vapour-compression or absorption refrigeration cycle.
- Coefficient of Performance
- The ratio of cooling or heating to energy consumption.
- Coil
- An inductive device made by looping turns of wire around a core.
- Combined Cooling Heat and Power
- Utilises the waste heat from a fuel cell or engine with absorption chillers to provide air conditioning and hot or cold water alongside electricity.
- Combined Heat and Power
- Electrical power generator set where the waste heat is used to heat water for building heat supply or for industrial processes.
- Condenser
- An old fashioned name for a capacitor.
- Constant Air Volume
- A system designed to provide a constant air flow.
- Controller
- A device that controls the operation of part or all of a system.
- Convector Heater
- A heat exchange device that uses the heat in steam, hot water, or an electric resistance element to warm the air in a room; often called inaccurately, a radiator.
- Damper
- Device used to reduce unwanted vibrations of a system.
- Deep Lake Water Cooling
- The heat is rejected to deep lake regions to cool homes and offices, reducing the energy costs.
- Dehumidifier
- A machine that removes moisture from the air.
- Delta T
- A reference to a temperature difference. It is used to describe the difference in temperature of a heating or cooling fluid as it enters and as it leaves a system.
- Electric Heating
- A system that imparts heat or holds something to be heated, controlled by electric current.
- Evaporator
- A component in the basic refrigeration cycle that absorbs or adds heat to the system.
- Fan Coil Unit
- A small terminal unit that is often composed of only a blower and a heating and/or cooling coil, as is often used in hotels, condominiums, or apartments
- Fresh Air Intake
- An opening through which outside air is drawn into the building.
- Grille
- A facing across a duct opening, often rectangular in shape, containing multiple parallel slots through which air may be delivered or withdrawn from a ventilated space.
- Heat Load
- Terms for the amount of heating (heat loss) or cooling (heat gain) needed to maintain desired temperatures and humidities in controlled air.
- Heating Ventilation and Air Conditioning Books
- Lists all Heating Ventilation and Air Conditioning Books in the Encyclopaedia
- Heating Ventilation and Air Conditioning Calculations
- Lists all Heating Ventilation and Air Conditioning Calculations in the Encyclopaedia
- Heating Ventilation and Air Conditioning Conversions
- Lists all Heating Ventilation and Air Conditioning Conversions in the Encyclopaedia
- Heating Ventilation and Air Conditioning Weblinks
- Lists all Heating Ventilation and Air Conditioning Weblinks in the Encyclopaedia
- Hydronic Heating System
- A system that circulates heated water through convectors to heat a building or given space.
- Intermediate Fluid
- A liquid or gas used to transfer heat between two heat exchangers.
- Minimum Outside Air
- The lowest amount of fresh air flow that can be allowed into a recirculating system. This limit is set to ensure that the interior air remains safe and comfortable to breathe.
- Service Drag
- This is drag from air ducted to cooling components.
- Smoke Damper
- A damper or adjustable louver designed to augment the ventilation of a space during a fire.
- Thermodynamics
- The study of energy transfers and transformations.
- Ventilation
- The controlled exchange of air.
Subjects: Automotive Civil Engineering Thermodynamics

