variable-air-volume control
1Variable air volume — (VAV) is a technique for controlling the capacity of a heating, ventilating, and/or air conditioning (HVAC) system. The simplest VAV system incorporates one supply duct that, when in cooling mode, distributes approximately convert|55|F supply air …
2Constant air volume — (CAV) is a type of heating, ventilating, and air conditioning (HVAC) system. In a simple CAV system, the supply air flow rate is constant, but the supply air temperature is varied to meet the thermal loads of a space.[1] Most CAV systems are… …
3air-conditioning — Control of temperature, humidity, purity, and motion of air in an enclosed space, independent of outside conditions. In a self contained air conditioning unit, air is heated in a boiler unit or cooled by being blown across a refrigerant filled… …
4Air gun — Air rifle and Air pistol redirect here. For other uses, see Air gun (disambiguation) An air gun (air rifle or air pistol) is a rifle or pistol which fires projectiles by means of compressed air or other gas, (in contrast to a firearm which uses… …
5Air handler — An air handling unit; air flow is from the right to left in this case. Some AHU components shown are: 1 Supply duct 2 Fan compartment 3 Vibration isolator ( flex joint ) 4 Heating and/or cooling coil 5 Filter compartment 6 Mixed (recirculated +… …
6Air-Conditioner — Dezentrale Klimaanlagen (Außenmodule von Splitgeräten) in Hongkong, 2002 Eine Klimaanlage ist eine Anlage zur Erzeugung und Aufrechterhaltung eines gleichmäßigen Raumklimas. Der Begriff Klimaanlage wird in Deutschland in dem Sinne verwendet, dass …
7Dedicated outdoor air system — A dedicated outdoor air system (DOAS) is a type of HVAC system that consists of two parallel systems: (1) a dedicated outdoor air ventilation system that handles latent loads and (2) a parallel system to handle sensible loads.[1] The graph on the …
8Variable compression ratio — is the technology to adjust internal combustion engine cylinder compression ratios on the fly. This is done to increase fuel efficiency while under varying loads. Higher loads require lower ratios to be more efficient and vice versa. Variable… …
9Variable valve actuation — Variable Valve Actuation, or VVA, is a generalised term used to describe any mechanism or method that can alter the shape or timing of a valve lift event within an internal combustion engine. There are many ways in which this can be achieved,… …
10Variable-frequency drive — A variable frequency drive (VFD) is a system for controlling the rotational speed of an alternating current (AC) electric motor by controlling the frequency of the electrical power supplied to the motor.cite book | first=Sylvester J. |… …
