How to Use a Psychrometric Chart?
Psychrometric Chart is very useful in air conditioning. By using a psychrometric chart, we can find ways to achieve thermal comfort under any given air condition. So, how can you…
HVAC Ductwork Design Guide (Layout, Duct Size & CFM)
Designing HVAC ductwork requires experience and broad knowledge about ducted air conditioning. Some people want to learn how to design HVAC ductwork, especially for residential. So, I decided to try…
HVAC Diffuser Sizing Guide: CFM Chart & Selection
Supply air diffusers are critical to HVAC air distribution system. Inappropriate supply air diffusers can cause the entire HVAC system to perform poorly. So, how do you size and select…
How to Read a Psychrometric Chart?
Psychrometric Chart is a useful tool in HVAC. It shows the properties of air and the relationship between temperature and humidity. Hence, it’s important for HVAC engineers to understand how…
Cooling Load Calculation Guide (Methods & Examples)
Cooling load calculation is one the most challenging yet mysterious things in the HVAC industry. Most engineers use a rule of thumb to size air conditioners but, what are the…
HVAC Excel Calculators (User Guide Included)
I’ve always wanted to download HVAC excel calculators to assist my design calculations. But, I couldn’t find a single one that is easy enough for me to understand and use….
