Analysis of Building Energy Efficiency Contribution Ratio of Chongqing in "11th Five-Year Plan"

How much contribution ratio of building energy efficiency for Chongqing in "11th Five-Year Plan" to the target of reducing 20% energy consumption per 10,000RMB GDP was the important problem to promoting building energy efficiency work.It has important significance to make target and measure of building energy efficiency.In this paper,the developing situation of building energy consumption,building energy consumption and energy-saving index for Chongqing in "11th Five-Year Plan" were analyzed and calculated through the statistics data published by statutory bodies and pre-setting work scenarios of energy efficiency for Chongqing in "11th Five-Year Plan".Calculating result confirmed that energy efficiency for Chongqing in "11th Five-Year Plan" payed 15.5% contribution ratio to the target of 20% less energy consumption per 10,000RMB GDP till 2010 compared to 2005.     

Research on Energy Consumption and Energy Efficiency Design for Department Stores in Chongqing

In order to research energy efficiency design of public buildings, the large and medium scale of typical department stores in Chongqing are chosen as objects and twelve stores are investigated about their operational energy. Based on the investigation results, the composition and features of operational energy are analyzed ; it is shown that the short of effective measures in respect of architectural design leads to the high power consumption in department stores. According to the local climate and environment characteristics, this paper puts forward concept of holistic energy efficiency and offers series of design strategies which lead to energy conservation in stores,such asefficiency.regardingclimate as resources and applying appropriate technology to attain energy efficiency.     

Improvement of Method in BIN Building Energy Consumption Calculation

The proportion of radiation load through glass windows in building energy analysis is comparatively great;it is regarded as linear relation with temperature in BIN method,which is extremely a rough method.It is not only because the relation between such radiation load and temperature is far from linear relationship,but also there is lack of objective standard for the selection of corresponding representative temperature to the load.To solve this problem,calculating the maximum factor D_(J max) firstly,then get the hourly corresponding relation of load and temperature by multiplying the hourly cool load coefficient.The practical relation of load and temperature could be obtained by counting up the average load to each temperature at each direction;the load calculation method is still simple using a series of statistic data.A comparison has been made between this method and the former one.As it is the real reflection of relation between the temperature and load,the precision of load calculation is enhanced.The process using this method to calculate load for south facing window in Chengdu is given in this paper.     

The Exterior Point Penalty Function Method In Building Electric Energy Consumption Split Algorithm

Current electrical distribution system for public buildings generally can collect the total energy consumption for a certain unit or a floor only. However, the amount of energy consumption in different kinds can be calculated by splitting, which may realize dynamic, accurate and prompt collections of industrial regulatory information; the sharing of data resources and should be able to provide scientific foundation while the competent department of construction administration are making development plans of construction energy conservation and policies of macroscopic readjustment and control.     

Study on Simulation Method of Heating and Air - conditioning Energy Consumption of Residential Buildings

The heating and air conditioning energy consumption of residential buildings is influenced by the behavior of indoor living personnel.On the basis of research and analysis,two kinds of calculation modes reflecting the behavior of indoor living personnel are estimated.Under two kinds of different calculation modes,by using the building thermal environment simulation Toolkit DeST to simulate the energy consumption calculation for certain residential building in Shanghai,and the simulation results are compared with the research results.The influence of calculation mode on heating and air conditioning energy consumption of residential buildings in Shanghai is analyzed in this paper.In order to obtain the right simulation calculation method correctly reflecting the energy consumption of residential buildings.This method can be used for analysis and evaluation of heating and air conditioning energy consumption of residential buildings in Shanghai,and it can serve as instruction for right energy design of residence building.     

Comparison and Analysis of Energy Consumption Calculation Methods

Referring to T.KUSUDA's and the author's research results,the simplified energy_consumption methods and the detailed computer simulation methods are compared.The major reasons for discrepancies are analyzed.The major problems of the Chinese practical and simplified method for energy_consumption analysis are put forward.     

Investigation and Analyses of Building Energy Consumptionof Government Office Buildings in Chongqing Area

This article classifies the buildings by the time before and after energy-saving standard executed, based on the investigation of energy consumption in government office buildings of Chongqing, and analyses the energy distribution characteristics of these buildings, in which factors like the building area、air-conditioning 、management system are taken into account .Finally we acquire the energy consumption characteristics in government office buildings of Chongqing.     

Study on the Heat Preservation and Energy Efficiency Design of Exterior Wall of Store Building in Chongqing

In order to research the potential of energy efficiency design of public building in depth, the large scale of store building in urban districts of Chongqing is chosen as the subject. On the basis of investigation into typical department store,an elementary model of department store has been built up. In allusion to exterior wall of department store, in respect of improving heat preservation of exterior wall, four different energy efficiency conformation design projects were made out,such as using double-layer window and adding heat insulation layer to exterior wall etc. and four energy efficiency projects with the actual design of exterior wall were compared;By analyzing the thermal and economic indexes, the most effective project of the energy efficiency design of exterior wall as to store building was found out to provide reference to the energy efficiency design of large scale of public building.     

Study on Calculation Method of Energy Savings for Public Buildings

According to the principles of various methods and energy consumption characteristics in Chongqing, new method of energy saving calculation is proposed for public buildings. It's shown that building envelope, facilities and energy management play the key role in energy saving reconstruction. Considering the difficulty of measuring adjustment quantity, the calculation should be under some certain prerequisites (design conditions), also the prevailing industry standards can be fully utilized. During the energy saving calculation, another key point is how to reflect the contribution rate of the single technologies for energy saving reconstruction.     

Analysis on Simulation Meteorological Data Under Climate Change

Climate has a determining influence on building energy consumption. Since 1980s, the global climate has appeared excessive warming, which inevitably causes the change of building energy consumption. The climatic simulation was used to forecast meteorological data from 2021 to 2050 for five cities in China. The five cities represent five different climate types in China. According to the Analysis of Energy Efficient Meteorological Year (AEEMY), model of meteorological data for building energy simulation based on TMY2 was presented. At the same time, meteorological data for DOES was also made from 1971 to 2000. A high residential building was respectively simulated in five cities under two kinds of meteorological data by using DOE2 software. The model of simulation was proved by the simulation result.     

Study on the Application of Energy Efficiency Building Design Based on BIM Technology

In light of the current situation of energy efficiency building design in China and the situation of energy analysis tools application both at home and abroad,aiming at the fact that traditional energy efficiency building design methods cannot meet current needs,this paper puts forward a new design approach-integrating BIM technology with energy efficiency analysis to carry out energy efficiency building design.The virtual building model created with BIM technology is an electronic database containing all of the building's information.By importing this virtual building model into energy analysis tools,we can automatically identify and analyze the model's great amount of information so as to quickly and easily get the energy efficiency analysis results.     

寒冷地区校园度日数法建筑能耗基准线的确定方法

校园建筑面积的迅速增长,导致校园建筑能耗占社会总能耗的比重越来越大。为了加强节约型校园建设管理,在建筑能耗基准线理论方法学的基础上,进行校园建筑能耗基准线的测算与研究。基于大量的能耗数据,笔者对校园建筑进行分类研究,提出了在使用功能分类的基础上将公共教学建筑按照空调系统形式进行细化分类的方法。最后采用四分位数法测算了各类校园建筑能耗基准线,提出低能耗水平、平均能耗水平和高能耗水平三类基准线,并给出实际应用中的建筑能耗基准线的修正方法。     

A Study of Indoor Environment Indicators in Popular Green Building Assessment Systems

A comparison research is launched for the Indoor Environment Quality indicators of the popular Green Building Assessment systems and China Evaluation standard for green building, including the IEQ indicators’ contents, weightings, and the scoring requirements for different green building ratings. By comparison, it was found that the indoor environment is mainly composed by IAQ, version environment, thermal environment and the acoustic environment, and the IAQ is the most important component in these systems. Although there is no weighting system or scoring system in China Green building assessment system, it is characterized by the relatively numerous prerequisites and the achieved indicators requirement for different ratings. Besides, the indicators paid with intensive attention in these systems are found.     

Constitute of Meteorological Data in Building Energy Analysis

Building energy analysis needs representative yearly meteorological data,the data could be selected from the past years' data according to specific regulation,it can also be produced from the meteorological math model which was built with the past data. A comparison is made between F testing method and AIC criterion method, which leads a result that the F testing method is reasonable. Mixed regression model of thirteen dimensions is established using F testing stepwise method. Test is conducted on independence and distribution of model residuals, and the result shows that the model is successful and more information can be provided for establishing model with dimension number increased. Using the above established model future meteorological data of building energy analysis can be predicted.     

Adaptability Analysis of Passive Building Energy Efficiency Technology in Selected Climatic Regions

Passive building energy efficiency refers to utilizing ecological building design principles with natural climate resources to realize building energy efficiency, which is greener, more conducive to the sustainable development of the human living environment, and will actively advocate building energy efficiency. The adaptability of six passive building energy efficiency technologies including passive solar heating, natural ventilation, thermal storage wall, induced and night ventilation, direct evaporative cooling and indirect evaporative cooling in typical cities in selected climatic regions would be analysed. In addition, the applicability of passive building energy efficiency technologies in selected climatic regions would be compared.     

Energy Consumption and Energy Use Characteristics of High-Rise Hotels: A Case Study of Xi'an,Shaanxi

In this paper, 5 high-rise hotels in Xi'an were selected for research, their energy consumption data from 2015 to 2016 were collected and analyzed, their comprehensive energy consumption per unit area was compared by using the standard coal coefficient, and their energy use characteristics and influencing factors were obtained. The test analyzed various parameters of the indoor environment and evaluated the indoor environmental quality according to the specifications and standards. Starting from the perspective of energy use systems, this paper found energy consumption priorities and problems of these hotels, and proposed feasible energy conservation measures, in a view to providing a reference for energy conservation design of high-rise hotels in Xi'an.     

Effects of Operation Mode of Air Conditioning on Energy Consumption of Heating and Air Conditioning in Residential Buildings

By using the building thermal environment simulation Toolkit DeST to simulation calculation of a residential building in Shanghai,the quantitative relationship between the factors of operation mode of air conditioning affecting the energy consumption of heating and air conditioning in residential buildings has been obtained in this paper,moreover,it has come to a conclusion that the tolerable temperature is superior to control temperature of air conditioning in respect of sensitivity and the living mode of indoor personnel has certain effect on the cold energy consumption.     

Analyses of Current Situation of Energy Management in LargePublic Buildings of Chongqing

This study doing statistics of energy consumption and energy auditing of state organs buildings and large public building in Chongqing, then according to the buildings use function classification, analysis problems in energy management and give advices, provides theoretical foundation for establishing state organs buildings and large public building energy-saving system and improving level of building energy-saving management.     

Implementation of Green Building Design Strategies Needs Whole Process Control and Supervision

Whether the intention of green building design can be realized in buildings needs to be verified in practice.This study firstly investigates the basic climate conditions including the monthly average temperatures,humidity,wind directions,and wind speeds in Sydney,Australia,based on which it introduces some passive design features such as natural ventilation,thermal mass,natural lighting and shading control of an educational and office building in the University of New South Wales.Then,it reviews some problems identified from the post-occupancy stage of the building and discusses the strategies to solve the problems.Finally,it suggests that to implement the design intentions and ensure the expected performance of green buildings,attentions should be paid to supervise and direct implementation of the green design strategies and techniques in the whole process(from preliminary design,working drawing design,construction,to the occupancy stage) of building practice.