HEATING VENTILATION AND AIR CONDITIONING (Technical Seminar )-with PDF File

CONTENT

• Introduction to HVAC
• History of HVAC
• Need of HVAC
• Heating
• Ventilation
• Air conditioning process
• Types of installation
• Recent Development in HVAC
• Advantages & Disadvantages
• Applications of HVAC
• Conclusion

HISTORY OF HVAC

• IN 1851 Dr John Gorrie was granted U.S. Patent for refrigeration machine.
• In 1880 refrigeration became available for industrial purpose. Initially two major uses –freezing meat for transport and making ice.
• Early 1990-new initiative to keep building cool for comfort.
• 1902 cooling the New York stock exchange-one of the first comfort cooling system.

NEED OF HVAC SYSTEM

• Improvement of the air quality
• Moisture regulation
• Depression
• Maintenance of the constant temperature throughout the year
• Energy conservation.

HVAC COMPONENTS

• Furnace
• Heat exchanger
• Ducts
• Vents
• Air Conditioning Unit
• Evaporator Coils
• Condensing Unit

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