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 | Heating, ventilation, and air conditioning - Wikipedia
The three major functions of heating, ventilation, and air conditioning are intertwined. HVAC systems can provide ventilation and maintain pressure relationships between spaces. The means of air delivery and removal from spaces is known as room air distribution. [1]
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 | What Is an HVAC System and How Does It Work? - Thermal Engineering
What Is an HVAC System and How Does It Work? An HVAC system, standing for Heating, Ventilation, and Air Conditioning, is a technology of 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. HVAC systems are a ...
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