Research On The Typical Meteorological Year For Building Energy Consumption Simulation

Meteorological parameters have the basic and direct role for guiding the regional construction standards and the energy consumption simulation evaluation.The key of the building outdoor design is determined by the local climate condition which depends on the long-term meteorological parameter records and the scientific processing to the data.In fact,since the founding of our country,the records of meteorological parameters are incompletely,especially in the 20 years of economic development rapidly,meanwhile the climate change has influenced and will continue to impact the building energy consumption.But at present,the system research of method for analyzing outdoor meteorological parameters of building energy consumption has not been formed in China,which directly affects the accuracy evaluation of building energy consumption and the application of architectural design.It is a foundation task to establish reasonable outdoor meteorological parameters calculation model,and to determine the processing method through the analysis of the typical meteorological year(TMY)8760 hours of energy efficiency in buildings.This paper established a systematic,scientific and suitable method for our country's climate analysis and discussed the generation of hourly weather data approach under the climate change which based on the analysis of the meteorological data in certain city on behalf of the typical climate zones in China and it borrowed the domestic method to deal with the meteorological parameters in the period of 30 years,and it achieved the quantitative meteorological conditions for guiding the architectural design.This research will reflect regional characteristic of the building climate in China,and get the ready for setting up the theory of quantitative standard meteorological conditions to guide the architectural design nationwide.The main aspects of the paper are as follows:(1)Comparing several methods of generating TMY which affect the building energy consumption.The international methods of TMY generation include the FS method,the standard deviation method and the principal component analysis(PCA)method.It leads to different TMY selected results by choosing the different generating method,which affects the accuracy of the building energy consumption simulation directly.In this paper,four methods(Sandia,CSWD,CTYW and TPCY)of generating TMY are researched to find the differences for the simulation of the building energy consumption using the same meteorological data of 30 years period.It has also systematically combed hourly TMY method including the general meteorological parameters and solar radiation,and completed the control of meteorological parameters quality,the method of selection of TMY,and the whole process of meteorological data format conversion for the building energy consumption simulation.(2)Determination of the weighing values of meteorological parameters in TMY of building energy consumption simulation.In the generation of TMY for building energy consumption simulation,the traditional FS statistical method is given the fixed weight about the meteorological parameters,but the relevant research showed that it is debatable for the curing weight of meteorological parameters due to the different regional meteorological resources.In this paper,aiming at the weighting factors of meteorological parameters unity or not in selection of TMY and the impact of building energy consumption simulation,Beijing and Lhasa on behalf of the cold region in building thermal partitions but climate conditions have obvious difference,based on the methods of FS and PCA has been analyzed.In the meanwhile,it has studied the regional application through comparing the typical meteorological parameters,and the energy consumption simulation has been used to verification.(3)Selection method of conducting unrecorded meteorological parameters of TMY for building energy consumption simulation.The generation of TMY needs long-term at least more than 30 years of continuous comprehensive meteorological data,it has certain difficulty to provide the complete and required meteorological data in the weather station across our country,especially in the small and medium-sized city or county town,which lack of comprehensive history meteorological data record for a long time.It is in dire need of establishing TMY generation method while dealing with the lack of measuring meteorological parameters for building energy consumption simulation.In this paper,first of all,based on the simplified advantage,it adopting PCA in the selection of TMY,combined with the variable clustering between the different meteorological parameters,found that the high correlation and information overlaps between them.Results showed that,TMY can also be generated even if the lack of the solar radiation parameters in Beijing or have a similar climate resources area with it.Secondly,due to the dew point temperature(DPT)is the index of the characterization of building outdoor humidity,and it impacts the TMY selection,but it is not easy directly accessed from the part of weather stations in China.The paper reviewed the relationship between DPT and other meteorological parameters,and researched the method of conducting unrecorded DPT in TMY selection.The results showed that the method of using relative humidity or atmospheric pressure to replace DPT is more close to the Sandia method.The research results can support choosing TMY where DPT unrecorded.(4)The generation method of the future hourly meteorological data and the quantitative analysis for building energy consumption under climate change.The climate plays an important role for building energy consumption.Excessive emission of greenhouse is the main reason for climate warming,which will have a major impact on building energy consumption.Domestic and abroad has an extremely attention in the building scientific research,how to carry through the building reasonable design and renovation combining with the future climate change,to make the construction not only meeting the requirements in the present stage,but also withstanding the test for the whole life cycle in the future climate change,and to reduce operating energy consumption in the whole life-cycle.However,the previous studies mainly dominated about the degree-days method and statistical forecast method,which has obviously deficient to accurately reflect the climate change impacting on the building energy consumption.On the one hand,it is lack of the large scale and long time series of meteorological data,on the other hand,it is failed to establish the meteorological data files for the background format to predict the future building energy consumption under climate change trend.This paper studied the international prediction method under the future climate change and adopted the related calculation between meteorological parameters,based on TMY and combined with the future climate predicted data,put forward the method for generating the future hourly meteorological data.Then it has quantitative analyzed the future building energy consumption of five city on behalf of the climate zones in China using the dynamic simulation method.(5)Study on the outdoor meteorological parameters application in the architectural design and building energy consumption simulation.It is a basic job in bioclimatic architecture to research the outdoor meteorological conditions,which are the purpose of in the service of architectural design field using the scientific method to seek the essential characteristics of the local meteorological resources.This paper,for Xi 'an as an example,analyzed the different meteorological elements in architectural design combining with the bioclimatic chart,introduced the strategy application in the architectural design.And it compared the difference between energy consumption calculation methods and the static and dynamic,as well as the quantitative analysis of the building energy consumption influence separately carried by the different meteorological parameters.Results showed that the gain and loss heat of window and infiltration have obviously correlation with dry bulb temperature and solar radiation,and the comprehensive value of the outdoor weather conditions can be obtained using the principal component method to characterize.In this paper,it established the TMY calculation method and the hourly meteorological parameter model in our country based on the investigation to obtain detailed and reliable meteorological data.It provides scientific basis for architects to accurate evaluation of building energy consumption through the basic research of outdoor meteorological parameters at the beginning of the architectural design.It has carried on the basic work that prediction and evaluation of the future building energy consumption through the quantitative analyze under the climate warming trend.This research provides the support to the architectural sustainable development,low energy consumption in regional architecture in China,emission reduction and the low energy consumption optimization technique response to the climate change.