Available online at www.sciencedirect.com Available online at www.sciencedirect.com Energy Procedia 00 (2017) 000–000 Energy Procedia 00 (2017) 000–000 AvailableAvailable onlineScienceDirect online at at www.sciencedirect.com www.sciencedirect.com www.elsevier.com/locate/procedia ScienceDirect www.elsevier.com/locate/procedia 2 Xu et al. / Energy Procedia 00 (2017) 000–000 ScienceDirectScienceDirect 1. Introduction EnergyEnergy Procedia Procedia 12100 (20(2017)17) 000150–157–000 Implementation of ESFGB has been officially launched in China since 2008 and great achievements have been www.elsevier.com/locate/procedia made through 8 years of development of GBL. By the end of 2015, 3979 GBL schemes were certificated and the Improving Residential Energy Efficiency International Conference, IREE 2017 overall floorage reached to 460 million square meters [1]. GBL scheme can be divided in to two different building InternationalImproving Residential Conference Energy on Improving Efficiency Residential International Energy Conference, Efficiency, IREE IREE 2017 2017 types and two different appraisal stages. One building type is GBL Public Building Scheme (GBLPBS) and the Study on developing status and appropriate technologies analysis of other is GBL Residential Building Scheme (GBLRBS). One appraisal stage is GBL Design Stage (GBLDS) and the Study on developing status and appropriate technologies analysis of other is GBL Operation Stage (GBLOS). Certificated GBL scheme can be divided into 3 star levels, i.e. one-star, greenThe 15th residential International Symposium buildings on inDistrict Hunan Heating Province and Cooling two-star and three-star which is the highest level [2]. Green buildings were developed relatively late in Hunan green residential buildings in Hunan Province Province as a central-south region where economic development grew relatively slow. But green buildings have been developed rapidly with the government’s attention and promotion since 2012. Evaluation Standard for Green Feng Xua,*, Na Xiea, Jin Zhoub, Kunlun Yinc, Baijun Wangd AssessingFeng Xuthea,*, feasibility Na Xiea, Jin Zhouof usingb, Kunlun the Yin heatc, Baijun demand Wang-outdoord Building in Hunan Province (ESFGBHP) was formulated first in 2009 and 126 GBL schemes were certificated in aSchool of Architecture, Hunan University, Changsha, Hunan 410082, China Hunan Province with floorage of 13.33 million square meters by the end of 2015 [3]. temperature functionbCollegeaSchool of ofCivil Architecture, Engineering,for a Hunan long Hunan Uni University,versity,-term Changsha, Changsha, district Hunan Hunan 410082, heat 410082, China Chinademand forecast According to statistical data, 81 schemes of Hunan Province, including 47 GBLPBSs with floorage of 3.13 cArchitecturalbCollege of Civil Design Engineering, Institute ofHunan Hunan University, Province, Changsha, Changsha, Hunan Hunan 410082, 410011, China China million square meters and 34 GBLRBSs with floorage of 6.31 million square meters passed the appraisal of GBL in a,b,ccArchitecturaldHunan Design Greena Institute Building of Council,Hunana Pr Changsha,ovince, Changsha, Hunanb 410007, Hunan China410011, Chinac c I. Andrić *, A.d Pina , P. Ferrão , J. Fournier ., B. Lacarrière , O. Le Corre the past five years. Although the number of public schemes is much more than that of residential schemes, the Hunan Green Building Council, Changsha, Hunan 410007, China overall floorage of residential schemes is over two times than that of public buildings. a IN+ Center for Innovation, Technology and Policy Research - Instituto Superior Técnico, Av. Rovisco Pais 1, 1049-001 Lisbon, Portugal Residential buildings are a building type that most closely associates with human life. Therefore, the Abstract bVeolia Recherche & Innovation, 291 Avenue Dreyfous Daniel, 78520 Limay, France Abstract cDépartement Systèmes Énergétiques et Environnement - IMT Atlantique, 4 rue Alfred Kastler, 44300 Nantes, France development of green residential buildings for energy savings, living environment improvement, and environmental pollution reduction is of great significance [4]. For developing countries, green residential buildings should be Green buildings have become an inevitable trend due to the implementation of the Evaluation Standard for Green Building (ESFGB)Green buildings in China. have Because become of itsan geographiinevitablec trendlocation due in to the the central-south implementation region of of th China,e Evaluation Hunan Standardwas developed for Green relatively Building late developed based on the selection of appropriate technologies. The purpose of appropriate technology compared(ESFGB) into China.other moreBecause industrialized of its geographi regionsc location of China. in theHoweve central-southr, with the region local of government's China, Hunan attention was developed and focus, relatively Hunan latehas implementation is to solve comprehensive problems through a positive interaction mechanism for specific object Abstract madecompared enormous to other progress more industrialized and caught up regions rapidl y.of GreenChina. residential However, buildingswith the localgrow government'seven faster than attention green andpublic focus, buildings. Hunan Thehas with the local natural, economic and social environment to obtain the best comprehensive benefit [5]. overallmade enormous floorage progressof residential and caughtbuildings up rapidlis abouty. Greentwo times residential of public buildings buildings grow among even thesefaster Greenthan green Building public Labelling buildings. (GBL) The Due to the limitations from technology, material and cost, the research and implementation of green residential District heating networks are commonly addressed in the literature as one of the most effective solutions for decreasing the schemesoverall floorage in the past of fiveresidential years. Inbuildings this paper, is about34 GBL two reside timesntial of buildingpublic buildings schemes amongof Hunan these Province Green wereBuilding analyzed Labelling through (GBL) data buildings are relatively slow in China. However, in most green building technology research, technology is greenhouse gas emissions from the building sector. These systems require high investments which are returned through the heat analyticsschemes inincluding the past quantityfive years. and In floorage,this paper, star 34 levelGBL proportionresidential buildingand geographical schemes ofdistri Hunanbution Pr ovinceto reveal were the analyzed developing through status data of considered separately. Boeck et al. [6] provided an updated review of improving energy performance of residential sales. Due to the changed climate conditions and building renovation policies, heat demand in the future could decrease, greenanalytics residential including buildings. quantity Meanwhile,and floorage, tec starhnologies level proportion used in these and geographicalschemes were distri dividedbution into to fivereveal categories the developing including status Land of prolonging the investment return period. buildings. Zhang [7] analyzed the measures of land saving being used in green residential buildings. Chai [8] studied Saving,green residential Energy Saving, buildings. Water Meanwhile, Saving, Materialtechnologies Saving used and in Indoorthese schemesEnvironment were indi videdaccordance into five with categories Evaluation including Standard Land for The main scope of this paper is to assess the feasibility of using the heat demand – outdoor temperature function for heat demand the comprehensive benefit in full life cycle and incremental cost of water conservation in green buildings. Mohamed GreenSaving, Building Energy inSaving, Hunan Water Province Saving, (ESFGBHP). Material ThenSaving the and technolo Indoorgy Environmentusing frequency in accordanceof GBL resi dentialwith Evaluation schemes wereStandard counted for forecast. The district of Alvalade, located in Lisbon (Portugal), was used as a case study. The district is consisted of 665 Ibrahim [9] studied the financial and environmental returns attained by recycling construction waste from selected andGreen sorted Building by different in Hunan categorie Provinces and (ESFGBHP). star levels. Then Combined the technolo with specificgy using technology frequency ofcost, GBL the resi relationshipdential schemes between were frequently counted- buildings that vary in both construction period and typology. Three weather scenarios (low, medium, high) and three district projects which conform to the U.S. Green Building Council standards. Al horr [10] established the links between usedand sorted technologies by different and incr categorieementals andcost starof different levels. Combined categories withand starspecific levels technology were discussed. cost, the relationship between frequently- renovation scenarios were developed (shallow, intermediate, deep). To estimate the error, obtained heat demand values were IEQs and occupant well-being and comfort. Nevertheless, appropriate technologies are rarely studied as a whole in ©used 2017 technologies The Authors. and Published incremental by costElsevier of different B.V. categories and star levels were discussed. compared with results from a dynamic heat demand model, previously developed and validated by the authors. Peer-review© 2017 The Authors.under the Published responsibility by Elsevier of the scientific B.V. committee of Improving Residential Energy Efficiency International green buildings, especially with incremental cost. © 2017