The Research on Energy Efficiency of Residential Building in Guangzhou

2013 ◽  
Vol 368-370 ◽  
pp. 1308-1313
Author(s):  
Zhi Hong Li ◽  
Li Hua Zhao ◽  
Xiao Shan Yang
Keyword(s):  
Energy Efficiency ◽  
Energy Consumption ◽  
Thermal Performance ◽  
Residential Building ◽  
Green Building ◽  
Building Energy ◽  
Building Energy Efficiency ◽  
Standard Value ◽  
Energy Efficiency Standard ◽  
Assessment Standard

Nowadays, greenhouse effect and energy shortage are becoming more and more fiercely, the development of the green building is the necessary choice to building sustainable development. Building energy efficiency is one of the most important parts of green building, and the draft of Assessment standard for green building puts forward clear requirements for decreasing energy consumption just by improving the thermal performance of the envelop to get more score for declaring the green building label project. In view of the scale extending of the green building label project in the future, the paper studied on the energy efficiency design of the residential envelop in Guangzhou by investigation and simulation to achieve the decreasing ranges of energy consumption more than 10% of building energy efficiency standard value, and provided a technical measures for the energy efficiency ratio 60% just by improving the thermal performance of the envelop.

Study on the Problems and Solutions of Building Energy Efficiency

2014 ◽  
Vol 525 ◽  
pp. 439-442
Author(s):  
Ling Jiao
Keyword(s):  
Energy Efficiency ◽  
Sustainable Development ◽  
Energy Consumption ◽  
Energy Saving ◽  
Evaluation System ◽  
Green Building ◽  
Building Energy ◽  
Green Energy ◽  
Building Energy Efficiency ◽  
Building Energy Consumption

With the development of economy, the progress of the times, the city continued to expand the scale of construction, building energy consumption is more and more serious, and the green energy-saving buildings are paid more and more attention in society. Building energy efficiency can fundamentally promote the savings and the rational use of energy and resources, Building energy efficiency is the needs to guarantee the sustainable development of national economy. With problems in building energy efficiency as the point of penetration, this paper analyses the present situations of building energy consumption and the major energy-saving issues in China. On the basis, in order to promote the green building of sustainable development, from thinking, evaluation system, design and other aspects some suggestions and measures are proposed .

Development of Existing Residential Building Energy Saving Renovation Design and Management Systems

2012 ◽  
Vol 446-449 ◽  
pp. 3829-3832
Author(s):  
Ling Wang ◽  
Ru Mu ◽  
Shu Ling Gao
Keyword(s):  
Energy Efficiency ◽  
Energy Consumption ◽  
Resource Sharing ◽  
System Development ◽  
Residential Building ◽  
Building Energy ◽  
Management Systems ◽  
Building Energy Efficiency ◽  
System Function ◽  
Building Energy Saving

Based on the analysis of the trends of buildings energy consumption, the thought of system development for existing residential building energy efficiency renovation design and management is proposed. General thought of design, control processes of data, modules and functions of system is introduced. The evaluation and analysis of building energy consumption can be efficiently and accurately completed by the system, and then renovation program is designed and optimized, at the same time with resource sharing, scalability of system function.

Research on Energy Consumption Tread of Residential Building in Beijing Based on Energy Audit

2012 ◽  
Vol 174-177 ◽  
pp. 2057-2060 ◽  
Author(s):  
Qing Feng Wang ◽  
Yan Li Wang ◽  
De Ying Li ◽  
Wei Na
Keyword(s):  
Energy Efficiency ◽  
Energy Consumption ◽  
Residential Building ◽  
Building Energy ◽  
Building Energy Efficiency ◽  
Building Energy Consumption ◽  
Energy Audit ◽  
Building Energy Saving ◽  
Site Test ◽  
Energy Efficiency Standards

Beijing building energy efficiency work has been carried out for 20 years, which played a significant role in building energy saving. Based on the energy audit which is site test and statistics of building energy consumption analyses the energy consumption of residential building in Beijing. Discusses the residential building energy consumption characteristics and gives the energy consumption tread of residential building in Beijing. The results show that Beijing's residential building energy consumption per unit area is reduced year by year, which is mainly related with the implementation of the Beijing building energy efficiency standards.

scholarly journals A Hybrid Simulation Model to Predict the Cooling Energy Consumption for Residential Housing in Hong Kong

Energies ◽  
2021 ◽  
Vol 14 (16) ◽  
pp. 4850
Author(s):  
Kwok Wai Mui ◽  
Ling Tim Wong ◽  
Manoj Kumar Satheesan ◽  
Anjana Balachandran
Keyword(s):  
Energy Efficiency ◽  
Hong Kong ◽  
Energy Consumption ◽  
Energy Demand ◽  
Building Materials ◽  
Energy Savings ◽  
Hybrid Simulation ◽  
Residential Building ◽  
Building Energy ◽  
Building Energy Efficiency

In Hong Kong, buildings consume 90% of the electricity generated and over 60% of the city’s carbon emissions are attributable to generating power for buildings. In 2018, Hong Kong residential sector consumed 41,965 TJ (26%) of total electricity generated, with private housing accounting for 52% and public housing taking in 26%, making them the two major contributors of greenhouse gas emissions. Furthermore, air conditioning was the major source consuming 38% of the electricity generated for the residential building segment. Strategizing building energy efficiency measures to reduce the cooling energy consumption of the residential building sector can thus have far-reaching benefits. This study proposes a hybrid simulation strategy that integrates artificial intelligence techniques with a building energy simulation tool (EnergyPlus™) to predict the annual cooling energy consumption of residential buildings in Hong Kong. The proposed method predicts long-term thermal energy demand (annual cooling energy consumption) based on short-term (hourly) simulated data. The hybrid simulation model can analyze the impacts of building materials, construction solutions, and indoor–outdoor temperature variations on the cooling energy consumed in apartments. The results indicate that using low thermal conductivity building materials for windows and external walls can reduce the annual cooling energy consumption by 8.19%, and decreasing the window-to-wall ratio from 80% to 40% can give annual cooling energy savings of up to 18%. Moreover, significant net annual cooling energy savings of 13.65% can be achieved by changing the indoor set-point temperature from 24 °C to 26 °C. The proposed model will serve as a reference for building energy efficiency practitioners to identify key relationships between building physical characteristics and operational strategies to minimize cooling energy demand at a minimal time in comparison to traditional energy estimation methods.

scholarly journals Progress in energy efficiency standards of residential buildings in China’s severe cold and cold zones

2019 ◽  
Vol 111 ◽  
pp. 03032
Author(s):  
Zhenyu Yu ◽  
Wei Xu ◽  
Xi Chen ◽  
Deyu Sun ◽  
Jing Zhang ◽  
...  
Keyword(s):  
Energy Efficiency ◽  
Residential Buildings ◽  
Residential Building ◽  
Building Energy ◽  
Chinese Government ◽  
Building Energy Efficiency ◽  
Energy Consumption Reduction ◽  
New Energy ◽  
Energy Efficiency Standard ◽  
Energy Efficiency Standards

Since Chinese government released the first residential building energy efficiency standard in 1986, the energy efficiency of residential buildings have been improved significantly. Three editions of residential building energy efficiency standards in severe cold and cold zones have been issued in the past 30 years, meanwhile, a new version is in the course of development and will be released in 2018. The paper reviews energy efficiency standards that have been issued for residential buildings in severe cold and cold zones in China, and development of new energy efficiency standards. The paper also describes the variation of key requirement in standards. Finally, future prospects for further developing energy efficiency standards for residential buildings in China are addressed. The findings show that the energy consumption reduction percentage has raised from 30% of JGJ 26-86 to 65% of the JGJ 26-2010. The insulation performance of roofs and external walls increased respectively by 103% and 83%, and the window performance increased by 130%.

DEVELOPING STANDARD WINDOW TO FLOOR RATIO (WFR) SYSTEM FOR GREEN RESIDENTIAL BUILDINGS IN SUBTROPICS

2021 ◽  
Vol 16 (3) ◽  
pp. 109-134
Author(s):  
Suwen Jiang ◽  
Chen Wang ◽  
Jeffrey Boon Hui Yap ◽  
Heng Li ◽  
Lincoln C. Wood ◽  
...  
Keyword(s):  
Energy Consumption ◽  
Residential Buildings ◽  
Residential Building ◽  
Green Building ◽  
Building Energy ◽  
Green Buildings ◽  
Energy Performance ◽  
Building Energy Efficiency ◽  
Window System ◽  
High Solar Radiation

ABSTRACT The window system is generally regarded as the most vulnerable building system for the indoor energy performance of green buildings. Window systems are given significant attention by architects and engineers, especially in areas with long summer and high solar radiation such as the subtropics. This study aims to develop a standard window-to-floor ratio (WFR) system for green residential buildings in the subtropics. Using Autodesk Revit as the interface, a real high-rise residential building was digitalized and imported into Ecotect for energy consumption analysis. Comparative analyses were conducted to determine the optimal WFR for building energy efficiency. Results demonstrated 0.23 as the optimal WFR in Xiamen, one of the typical subtropical cities in Asia. Furthermore, accompanied by a four-sidefins sunshade device and a double glass window (DGW) with clear “glass+air gap+reflective” glass, the building energy consumption was further reduced by 34.47% compared to the initial model, which successfully met the optimization target of 30%, set according to the green building standard. The results of this study are helpful to architects and building engineers when designing or retrofitting green buildings as we provide specific support for design features for energy performance.

Analysis of the Influence of the Roof Greening Technology on Building Energy Efficiency

2012 ◽  
Vol 253-255 ◽  
pp. 716-719
Author(s):  
Yang Wang ◽  
Yan Chen
Keyword(s):  
Energy Efficiency ◽  
Energy Consumption ◽  
Building Energy ◽  
Building Energy Efficiency ◽  
Low Carbon ◽  
Positive Role ◽  
Building Energy Conservation ◽  
Technological Characteristics ◽  
Roof Greening

Under the circumstances of the increasing energy consumption of buildings, the development and application of building energy efficiency technology have attracted the attention of many people. As one of the important building energy efficiency technologies, roof greening has played a positive role in building a low-carbon and energy-saving society. This paper analyzes the technological characteristics and the formation methods of the roof greening system. It also expounds on the role of roof greening in building energy conservation.

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