HVAC 1 min read
Determine Design Supply Airflow Rate
HVAC engineers use psychrometrics to translate the knowledge of heating or cooling loads (which are in kW or tons) into…
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AIR CONDITIONING SYSTEM DESIGN
In designing air conditioning systems, the first challenge is to understand the components that affect the building heat gain or…
HVAC 1 min read
Approaches to Humidity Control
Humidity control in a conditioned space is done by controlling the amount of water vapor present in the air in…
HVAC 1 min read
Approaches to Temperature Control
Temperature control in an air conditioning system is achieved by passing the air through the cooling or heating coil, which…
HVAC 1 min read
AIR CONDITIONING PSYCHROMETRICS
In air-conditioning system, the air must undergo one or several of the following processes: Psychrometrics can be used to predict…
HVAC 3 min read
Water Treatment for Chiller Units
Chiller Water Circuit The above picture is showing the chiller circuit in simplified form. All the lines are either carrying either cold…
HVAC 4 min read
What is Mechanical Ventilation?
HVAC stands for Heating, Ventilation, and Air Conditioning. The objective of HVAC is to control the temperature of air inside the designated “Air…
HVAC 6 min read
Starting Methods for Induction Motors
Most large induction motors are started directly on line, but when very large motors are started that way, they cause…
HVAC 3 min read
How Heat Works
In HVAC-R, making things cold is really all about heat. How many of us heard as kids, “Close the door!…
HVAC 4 min read
The 2nd Law of Themodynamics
If a system undergoes a thermodynamic process or cycle, the first law gives a quantitative estimate of the heat and…
HVAC 5 min read
Learn More about Heat Pumps
Nature created mankind, but with the advancement of technology, man is now trying to recreate nature. This may have its…
HVAC 9 min read
Room Air Conditioning Systems that are Easy to Construct
Are you planning to buy a conventional type of air conditioner from the market? Wait a moment: the low cost,…