Comparison of thermal model between EnergyPlus and DeST

Calculates hourly cooling and heating load of a building under the same conditions of the inner and outer interfering amount and air conditioning operation mode by EnergyPlus and DeST software, and finds the difference in results. After analysing, finds that the main cause is that there is a difference between thermal models of two software, which shows that there are the important influences of the calculation method of heat transfer through building envelope and the model of heat transfer from neighbouring rooms on the load calculation result.