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It is often referred to as climate control. It is one of the most important things to take into consideration when designing a medium to large industrial and office buildings.
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HARDI ASHRAE
HARDI stands for Heating, Airconditioning & Refrigeration Distributors International, is a not for profit association whose focus is to promote the business interests of wholesale airconditioning, heating, and refrigeration companies. HARDI's member companies are estimated to represent about 80% of the industry's wholesale sales- over $20 billion annually
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American Society of Heating, Refrigerating and Air Conditioning Engineers (ASHRAE) s an international technical society for all individuals and organizations interested in heating, ventilation, air-conditioning, and refrigeration (HVAC&R). The Society, organized into Regions, Chapters, and Student Branches, allows exchange of HVAC&R knowledge and experiences for the benefit of the field's practitioners and the public. ASHRAE provides many opportunities to participate in the development of new knowledge via, for example, research and its many Technical Committees.
Central Heating System Forced Air System
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provides warmth to the whole interior of a building (or portion of a building) from one point to multiple rooms. When combined with other systems in order to control the building climate, the whole system may be a HVAC (heating, ventilation and air conditioning) system. Central heating differs from local heating in that the heat generation occurs in one place, such as a furnace room in a house or a mechanical room in a large building. The most common method of heat generation involves the combustion of fossil fuel in a furnace or boiler. The resultant heat then gets distributed: typically by forced-air through ductwork, by water circulating through pipes, or by steam fed through pipes.
A forced-air system is one which uses air as its heat transfer medium. These systems rely on ductwork, vents, and plenums as a means of air distribution separate from the actual Heating and Air Conditioning systems. The return plenum carries the air from several large return grills (vents) to a central air handler for re-heating.
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Ventilation is the intentional movement of air from outside a building to the inside.
Ventilating is the process of "changing" or replacing air in any space to control temperature or remove moisture, odors, smoke, heat, dust, airborne bacteria, carbon dioxide, and to replenish oxygen.
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Air conditioning is the dehumidification of indoor air for thermal comfort. In a broader sense, the term can refer to any form of cooling, heating, ventilation, or disinfection that modifies the condition of air.
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Air changes per hour(ACH) –number of times per hour that the volume in a room or building supplied or removed by ventilation Air handler- also known as air handling unit, is a central unit consisting of most elements except the ductwork through the building. Chiller-a device that removes heat from a liquid through vapor-compression or absorption refrigiratin cycle.
Condenser-a basic refrigeration cycle that ejects or removes heat from the system. Deep lake water cooling- heat is rejected to deep lake regions to cool homes and offices, reducing the energy costs Evaporator-a component in the refrigiration cycle that absorbs or adds heat to the system Fan coil unit-a terminal unit composed of only a blower and a heating and/or cooling coil.
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Packaged terminal air conditioner-an airconditioner and heater that is combined into a single unit.
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