HVAC: Heating, Ventilation & Air-Conditioning

Most Recent

• The 4 Most Common HVAC Issues And How To Fix Them
  An HVAC system is designed to keep the occupants of offices, tower blocks and retail properties happy and healthy across the world. However, sometimes, your unit will need a helping hand to keep itself in top condition.
• How Air Pollutants Affect Human Health
  Where do air borne pollutants come from and how can we keep them under control? Read about some of the downsides that come along with air conditioned environments.
• Upgrading Heating, Ventilation and Air Conditioning
  The power used in running a building's Heating, Ventilation and Air Conditioning (HVAC) is quite substantial, so any measures to improve its efficiency will save energy and cash. An upgrade of the HVAC system can be carried out by replacing the old worn components with modern more efficient units.
• How Heating and Ventilation Loads are Assessed
  Before selecting the appropriate HVAC system, builders first need to determine the heating and ventilating loads. Loads are determined by some environmental factors and design calculations. Learn more about why its so important.
• The Chimney or Stack Effect Explained
  The chimney effect is the natural phenomena that occurs when the density difference between a hot and a cold air column creates a natural flow through a chimney. Learn more about why this works.
• Natural Convection Heat Transfer Coefficient Estimation Calculations
  Download Excel spreadsheets to calculate natural convection heat transfer coefficients. We've included several configurations, including vertical plate or from a horizontal cylinder.
• How To: Cleaning Coils in an Air Conditioner
  Learn how to clean your air conditioner coils and increase the service life of your air conditioner.
• 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, efficient, and eco-friendly homemade air conditioner design project shown here may just change your mind. The drawbacks of Freon and ammonia air conditioner units are also included.
• What is a Psychrometric Chart? Overview of Components
  A Psychrometric Chart is an important tool for HVAC engineers to carry out heat load or cooling load calculations and find solutions to various air condition related problems. Read an overview of the components included in a psychrometric chart.