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The first of the cooling load factors used in this method is the CLTD, or the Cooling Load Temperature Difference. This factor is used to represent the temperature difference between indoor and outdoor air with the inclusion of the heating effects of solar radiation. [1] [5] The second factor is the CLF, or the cooling load factor.
Sol-air temperature (T sol-air) is a variable used to calculate cooling load of a building and determine the total heat gain through exterior surfaces. It is an improvement over: It is an improvement over:
Originating in ancient India, Vastu Shastra (Sanskrit: वास्तु शास्त्र, vāstu śāstra – literally "science of architecture" [2]) is a traditional Hindu system of architecture [3] [4] based on ancient texts that describe principles of design, layout, measurements, ground preparation, space arrangement, and spatial geometry. [5]
For such spaces, the indoor and outdoor air temperature and mean radiant temperature and the air speed need to be measured. [1] ANSI/ASHRAE Standard 55 provides guideline on the position, time, and equipment accuracy of the physical measurement. The measurement locations should be where the occupants are expected to spend time in.
The Mahoney Tables (Evans, 1999; Evans, 2001) proposed a climate analysis sequence that starts with the basic and widely available monthly climatic data of temperature, humidity and rainfall, such as that found in HMSO (1958) and Pearce and Smith (1990), or data published by national meteorological services, for example SMN (1995).
In contrast, ambient temperature is the actual temperature, as measured by a thermometer, of the air (or other medium and surroundings) in any particular place. The ambient temperature (e.g. an unheated room in winter) may be very different from an ideal room temperature .
The building balance point temperature is the outdoor air temperature when the heat gains of the building are equal to the heat losses. [1] Internal heat sources due to electric lighting, mechanical equipment, body heat, and solar radiation may offset the need for additional heating although the outdoor temperature may be below the thermostat set-point temperature.
Plenum air temperature rise is caused by cool supply air coming into contact with warmer than air concrete slab and raised floor. According to a modeling study, air temperature rise can be quite significant (as much as 5 °C or 9 °F) and subsequently, compared to an idealized simulated UFAD case with no air temperature rise, elevated diffuser ...
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