Ton of Refrigeration

What is Heat & Mode of Heat Transfer?

How to detect leakage in Air conditioner

How to Charge Gas in AC


Central Plant Chilled Water System

Air Distribution Terminal

Selection of Air Handling Unit

Kitchen Ventilation Design

Psychrometry Chart

HVAC Course (Psychometric:-) 

To know how air behave when it is subjected to cooling, heating, humidifying or dehumidifying process. For this purpose, it is necessary to study the property of air at normal atmospheric pressure. 

It is a science that deals with physical properties of air & water vapor mixture

Properties of Air:-

  1. DBT (Dry Bulb Temperature)
  2. WBT (Wet Bulb Temperature)
  3. Relative Humidity (R.H.)
  4. Humidity Ratio (H.R.)
  5. Dew Point Temperature (DPT)