Design Of Energy Saving Scheme For Central Air Conditioning System Of Nanjing Municipal Environmental Protection Bureau

With the rapid development of urbanization,our city is growing at a fast pace in the fileds of enterprises,government office buildings,office buildings,supermarkets,hotels,hospitals and other large buildings.As a result,there is a widely use of central air conditioning.According to the total electricity consumption statistics,which was conducted by the National Energy Bureau in 2015,the central air-conditioning power consumption had accounted for 22.4% of the total electricity consumption by the end of 2015.Of which,the developed city had accounted for more than 24.7% of the total consumption,and somecities can even made up as high as 33%.Under such a circumstance,an increasing load of power supply in city has naturally lead to the emergence of energy saving and energy efficiency management.Nowadays,with an increasing energy demand and tense energy-supply,The increasingly importance of energy saving technology has been stressed.To respondthe to this trend and the national energy conservation and emission reduction,and save more valuable resources for the society,this paper aims at studying the energy saving technology of central air conditioning.(1)Through the documents survey on central air-conditioning energy-saving study at home and abroad,and found that the researchs on air conditioning water system and fan coil system are quite less,whereby,the air conditioning water system and fan coil system are aimed at.(2)Research on energy saving potential from air conditioning water system and fan coil system.Studying the pumps and fans and find the cause of high energy-consumption.Analyze the two flows caused excessive energy consumption and the excessive flow will also increase the control valve energy consumption.(3)Analysis of the principle of frequency adjustment technology,and apply the frequency conversion technology to the air conditioning water system and wind system.Make structure design for water system and wind system control,by controlling the pump and fan flow,solving the problem of energy waste from the source in order to achieve energy saving effect.(4)Finally,combining with the Nanjing Environmental Protection Bureau' actual situation,apply the frequency energy-saving technology to the project central air conditioning system design.And through selection from a variety of energy-saving equipments,and monitoring the actual energy consumption of the project's actual energy-consumption,to proof the practical application of the frequency energy-saving technology.