Thermal-Economic Performance Evaluation of Air Conditioning for Office Buildings

Abstract

Building energy consumption accounts for about 40% of the total energy consumption in China. Among them, for hot summer and cold winter areas, the energy consumption of air conditioning and refrigeration in summer is the main part, based on the current situation of air conditioning application in this area, it is significant to improve the energy efficiency of refrigeration equipment in summer by analyzing the energy-saving potential of operation energy consumption and comprehensively evaluating its economy. Based on the theoretical thermodynamic perfection of equipment refrigeration, taking the split type air conditioning system in Guiyang office buildings as an example, this paper selects the typical refrigeration equipment and analyzes its energy-saving potential and economy based on its energy price status, in order to clarify the office building split air conditioning equipment energy-saving capacity and its operation economy. The preliminary analysis shows that when the service life of air-conditioning exceeds 5 years, its energy-saving performance and economy can reach the agreement, that is, the best energy-saving air-conditioning economy is also the best.