Simulation and Analysis of Low-Energy Consumption of Office Building

Abstract

Taking a low-energy consumption of office building that adopts the water source heat pump system as cold and heat source in Shenyang as an example, we investigated the whole building energy condition and system operation situation and collected the energy consumption data of building in former years. The energy consumption of the whole office building is simulated based on Design Builder software; it is proved that the numerical simulation method is reliable compared with the previous collected data. Operating energy consumption of air-conditioning system, other power system, indoor lighting system, and office equipment system in this office building is simulated with the Design Builder software. The energy utilization efficiency of low-energy consumption of office building is evaluated. The results show that the office building annual energy consumption per unit area index is less than ordinary office building. It reflects the advantages of water source heat pump air-conditioning system than others. Energy consumption index of lighting and office equipment reflects the characteristics about energy consumption of the office building.