Research On The Influence Of Region And Refrigerant On The Performance Of The Inverter Air Conditioner

At present,the problem of energy shortage becomes the most global pressing problem.In our country,along with the increase of household air conditioners,air conditioners consume a lot of energy.Especially in recent years,during the period of summer peak,a lot of cities in our country occur electricity shortage,air conditioning energy consumption cannot be ignored.Therefore,the demand for air conditioning energy saving is getting higher and higher.Compared with constant speed air conditioner,inverter air conditioner has many advantages including energy saving.So we need a scientific and reasonable evaluation method for energy efficiency evaluation of inverter air conditioner.At present time,the evaluation of variable frequency air conditioner only considers energy consumption,without considering other environmental factors.And the evaluation of energy consumption now used in our country is an evaluation method which does not consider the impact of regional factors on air conditioning energy consumption.This paper mainly focuses on the three aspects of the work:(1)research on the influence of the region on energy efficiency based on the meteorological parameters;(2)research on the influence of the region and the usage on energy efficiency based on the actual survey data of operating characteristics;(3)consider comprehensively the GWP(Global Warming Potentials)and energy efficiency of the refrigerant,and analyze the environmental impact of air conditioner.Firstly,this paper discusses the feasibility of incorporating regional factors(environmental temperature difference)into energy efficiency evaluation system,and simulates the energy efficiency of the inverter air conditioner system through the energy simulation software edited by Visual Basic,according to the meteorological parameters of the 52 cities in 5 different regions of the country,and summarizes the temperature time curve required by APF(Active Power Filter)calculation,then based on this,analyzes APF performance of the same air conditioner in different regions when running.Secondly,this paper draws APF contrast analysis chart of the same air conditioner in 52 cities with same energy efficiency rating and different capacity using the energy efficiency evaluation method,and comparatively analyzes APF differences of an airconditioner in three energy efficiency ratings,and three capacities as well as two working conditions,so as to find out the causes of differences in APF,and then analyzes the real air conditioning APF survey data of 5 cities in 5 regions of the country.The results have a certain degree of coincidence with the previous statistical theory results.Finally,this paper analyzes the energy efficiency of three kinds of common refrigerants(R22,R290,and R410A)on the premise of the same comprehensive environmental impact TEWI(Total Equivalent Warming Impact),and discusses the feasibility of comprehensive evaluation of air conditioner when considering refrigerants environment-friendliness.