Glossary
|
The terms and definitions included
in this glossary were taken from "ASHRAE Terminology of Heating, Ventilation,
Air Conditioning & Refrigeration".
To access the complete glossary please
visit ASHRAE's Bookstore.
|
|
You can always search for terms. |
|
Submit Term |
|
| H |
| Pages: «1 2 3 4 5 » |
| head | 1. energy per unit mass of fluid divided by
gravitational acceleration.
2. in fluid statics and dynamics, a vertical
linear measure. Note: The terms head
and pressure are often mistakenly used interchangeably. See also suction head. |
| | |
| head loss (dynamic head loss) | during flow, the reduction in the velocity head |
| | |
| header | 1.
pipe or tube (extruded, cast, or fabricated) to which a number of other pipes
or tubes are connected. 2. removable end cover. |
| | |
| heat | 1. energy that is transferred in the direction
of lower temperature.
2.
form of energy which is exchanged between a system and its environment or
between parts of the system induced by temperature difference existing between
them. |
| | |
| heat anticipation | ability of a thermostat to terminate heat input
at a temperature lower than its setting, and in advance of the time that the
rising air temperature at the thermostat normally would cause the thermostat to
terminate heating |
| | |
| heat balance |
statement that shows the changes in a system
from heat and work input to output losses. |
| | |
| heat bridge (heat channel; heat leak) | part of the boundary construction of an
insulated enclosure through which heat can flow readily by conduction |
| | |
| heat capacity | amount of heat necessary to raise the
temperature of a given mass one degree; numerically, the mass multiplied by the
specific heat |
| | |
| heat equivalent of work | heat energy corresponding to a unit of
mechanical energy. See heat, mechanical equivalent of |
| | |
| heat exchange |
process of heat transfer in which heat flows
from one substance to another.
heat exchange surface surface area of any heat
exchanger available for transmitting heat. |
| | |
|
|
Resources 
English RSS
