Heat dissipation characteristics and power-heat conversion monitoring model identification of computers in office environment

Electronic equipment has been widely used and the influence of its real-time cooling load on the indoor thermal environment and HVAC system cannot be ignored. Using the combination method of analytical and experimental researches, analyses the heat dissipation characteristics of electronic equipment, and develops the monitoring models of power-heat conversion between the input power and the total heat dissipation, convective heat dissipation and radiative heat dissipation from computers. The models can be used in the Internet of Building Energy Systems (iBES). Taking the real-time monitoring data of socket power consumption as the input, the real-time data of total heat dissipation, convective heat dissipation and radiative heat dissipation from various electronic equipment in the building can be obtained, and then the real-time cooling load can be acquired. Different types of computers and operating conditions are adopted in verification, and the results show that the mean absolute percentage error (MAPE), the root mean square error (RMSE) and the coefficient of variation (CV) are no more than 5.25%, 0.074 and 0.085, respectively, indicating high accuracy.