English Wikipedia - The Free Encycl...
Download this dictionary
HVAC
HVAC
(
heating
,
ventilating
, and
air conditioning
; also heating, ventilation, and air conditioning) is the technology of indoor and vehicular environmental comfort. Its goal is to provide
thermal comfort
and acceptable
indoor air quality
. HVAC system design is a subdiscipline of
mechanical engineering
, based on the principles of
thermodynamics
,
fluid mechanics
, and
heat transfer
.
Refrigeration
is sometimes added to the field's abbreviation as HVAC&R or HVACR, (heating,ventilating and air-conditioning & Refrigeration) or ventilating is dropped as in HACR (such as the designation of HACR-rated
circuit breakers
).
See more at Wikipedia.org...
© This article uses material from
Wikipedia
®
and is licensed under the
GNU Free Documentation License
and under the
Creative Commons Attribution-ShareAlike License