Tag Archive for Tag: Heating

Tag: Heating Radiant Heating

Radiant heating, or panel heating as it is sometimes referred to, consists of a warm pipe coil embedded in the floor, ceiling, or walls. The most common arrangement is to circulate warm water through the pipe under the floor. Some installations with warm-air ducts, steam pipes, or electric-heating elements have been installed. Warm-air ducts for radiant heating are not very common. A modified

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Tag: Heating Warm-Air Heating

A warm-air heating system supplies heat to a room by bringing in a quantity of air above room temperature, the amount of heat added by the air being at least equal to that required to counteract heat losses. A gravity system (without a blower) is rarely installed because it depends on the difference in density of the warm-air supply and the colder room

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Tag: Heating Heating-Load-Calculation Example

As an example of the method described for sizing a heating plant, let us take the building shown in Fig. 13.3. A design outdoor temperature of 0F and an indoor temperature of 70F are assumed. The wall is to be constructed of 4-in brick with 8-in cinder-block backup. Interior finish is metal lath and plaster (wall heat-transmission coefficient U  0.25). The

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Tag: Heating Definitions of Terms of Heating, Ventilation, and Air Conditioning (HVAC)

Adiabatic Process. A thermodynamic process that takes place without any heat being added or subtracted and at constant total heat. Air, Makeup. New, or fresh, air brought into a building to replace losses due to exfiltration and exhausts, such as those from ventilation and chemical hoods. Air, Return (Recirculated). Air that leaves a conditioned spaced and is returned to the air conditioning equipment

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