Energy-saving Transformation of Air Conditioning System in a Large Shopping Mall Located in Beijing
Large shopping malls have large flow of people,more cooling equipment and long operation time of air conditioning system,which has great potential for energy saving.This paper investigated the energy consumption of air conditioning system in a Beijing's large shopping mall.Aiming at the problems existing in its operation process,a comprehensive energy-saving transformation scheme based on the energy-saving control technology of air conditioning system was proposed.The research shows that the annual energy saving of the air conditioning system is 1.41 million kWh,and the annual electricity saving reaches 1.60 million yuan.The heat saving is 601.82 GJ,and the annual heating cost saving reaches 59.5 thousand yuan.The energy saving effect and economic benefit are better than before the renovation,which can provide reference for similar public building energy saving renovation in Beijing area.
Public buildingsAir conditioning systemEnergy-saving transformationCold and heat sourceControl strategy