Research on outdoor air design temperature parameters of HVAC cooling and heating loads based on space distribution

Outdoor air design temperature is important to HVAC heating and cooling load calculation. But the current codes provide outdoor air design parameters of 294 sites only, which cannot meet the practical requirements. Based on the existing design meteorological parameters, proposes a method of statistical analysis combined with spatial interpolation method. The results show that for the site without outdoor air design parameters, the calculated temperature obtained by this method has relatively high precision.