What is HVAC?
HVAC stands for Heating, Ventilation, and Air Conditioning. It refers to the technologies and systems used to regulate indoor environmental conditions, ensuring comfort, air quality, and safety in buildings.
Working Principles of HVAC
- Heating:
- Method: Utilizes furnaces, boilers, or heat pumps to raise indoor air temperature.
- Mechanism:
- Furnaces: Burn fuel (gas, oil) to create heat.
- Boilers: Heat water to produce steam or hot water for heating.
- Heat Pumps: Transfer heat from outside to inside using refrigerants.
- Ventilation:
- Method: Introduces fresh outdoor air and expels stale indoor air.
- Mechanism:
- Natural Ventilation: Relies on natural air flow through openings.
- Mechanical Ventilation: Uses fans and ducts to control airflow, including exhaust and supply fans.
- Air Conditioning:
- Method: Cools and dehumidifies indoor air.
- Mechanism:
- Refrigeration Cycle: This cycle involves evaporators (to absorb heat) and condensers (to release heat), using refrigerants to facilitate the process.
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