Calculating the annual cost of energy to heat and cool a gas pad in your cleanroom or fab.
There are several ways to do this, but in all cases the site weather is the most important factor affecting the cost. For buildings or areas within buildings that draw in quantities of outdoor air and exhaust it through equipment and are not significantly affected by solar heat gains or losses, the annual energy cost can either be determined manually using “BIN data” for the city of interest and applying thermodynamic and fluid flow equations for the fresh air and exhaust flow rates, air cooling and heating processes, and air conditioning system efficiency. “BIN data” is a form of weather data...