Lecture 2: HVAC Course (Introduction)
Objectives of HVAC Engineer:-
HVAC mechanical engineers are responsible for the installation, repair and maintenance of heating and cooling system within a home or commercial building , often including appliances.
Scope of HVAC
Career Path of HVAC Engineer
Heating – Rising of temperature is called Heating
Heat is the form of energy that is transferred between two substances at different temperature.
The direction of energy flow is from substance at high temp. to a substance at low temp.
Cooling:- Reducing the temperature is called cooling
Humidity: – Humidity is defined as the amount of water vapors present in the air is called Humidity
Humidification :- The process of increasing the water vapors in the air is called humidification.
Dehumidification :- The process of decreasing the water vapors in the air is called dehumidification.
According to ASHRAE, Comfortable humidity is between 30% to 70%
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