Application of Energy Consumption Simulation in Envelope Energy-Saving Reconstruction of Existing Building

2011 ◽  
Vol 99-100 ◽  
pp. 644-649
Author(s):  
Yan Qiu Cui ◽  
Rui Han Wei ◽  
Cai Ling Luo ◽  
Ji Kui Miao
Keyword(s):  
Energy Consumption ◽  
Energy Saving ◽  
Simulation Analysis ◽  
Building Envelope ◽  
Simulation Software ◽  
Total Load ◽  
Existing Building ◽  
Envelope Reconstruction ◽  
Saving Effect ◽  
Energy Consumption Simulation

In order to quantify energy saving effect of existing building envelope reconstruction, the paper makes the envelope reconstruction project of Jinan Lixia Office Building as a case, uses energy consumption simulation software DeST-C to make dynamic simulation analysis on several aspects such as natural room temperature, cold and hot load before and after reconstruction of experimental building in cold area. After reconstruction, accumulative hot load of building obtained by calculation decreases 33%, accumulative cold load decreases 15.67%, total load decreases 21.04% in the whole year, and the results show energy saving reconstruction effect of existing building envelope is remarkable.

Energy Consumption Analysis on Office Building Ventilation

2012 ◽  
Vol 516-517 ◽  
pp. 1139-1143
Author(s):  
Ke Chun Sun ◽  
Wei Jun Zhang
Keyword(s):  
Energy Consumption ◽  
Energy Saving ◽  
Air Conditioning ◽  
Room Temperature ◽  
Simulation Analysis ◽  
Simulation Software ◽  
Energy Simulation ◽  
Office Building ◽  
Saving Effect ◽  
Night Ventilation

Chongqing weather conditions as the representative, energy simulation software DesT-c Chongqing office building energy simulation analysis, simulated natural building under different ventilation conditions at room temperature, the energy consumption of building cooling load and air-conditioning system changes, with an emphasis on energy-saving effect of the night ventilation; The study showed that in Chongqing reasonable use of ventilation reduce building natural room temperature to a certain extent; Sensitive indicators of building air conditioning energy consumption than the heating energy consumption of ventilation was significantly; Night ventilation when the number of ventilators is less than 5 times / h, the energy saving effect is very significant.

Energy efficient design optimization of a bioclimatic house

2019 ◽  
Vol 29 (2) ◽  
pp. 270-285 ◽  
Author(s):  
MA Boukli Hacene ◽  
NE Chabane Sari
Keyword(s):  
Energy Consumption ◽  
Energy Saving ◽  
Simulation Analysis ◽  
Simulation Software ◽  
Living Environment ◽  
Building Performance ◽  
Efficient Design ◽  
Global Energy ◽  
Existing Building ◽  
Building Performance Simulation

The global energy context of the year 2018 makes us pessimistic about the future. The geopolitical, environmental and socio-economic aspects are linked to the political tensions of countries that hold and manipulate the global energy market. These countries are haunted by the population growth, the depletion of fossil resources and the global economic crisis. Each country is trying to find reasonable solutions to deal with this crisis. Unfortunately, these solutions always have direct negative repercussions on the population and on the environment. In this paper we present a case study developed in Algeria and inspired by the current and critical socio-economic situation of the country, in particular, the application of energy-saving techniques to an existing building. The investigation was conducted by using both simulation software and real interventions. We analyse some of the major components, such as building’s orientation and exposure to daylight which have significant impact on energy consumption. We present the concept of Building Performance Simulation Analysis, using Autodesk ECOTECT Analysis and COMSOL Multiphysics software, and give full consideration to various ecological energy-saving methods. Using our models, we present a possible solution for retrofitting a building to minimize its energy consumption. The results are useful for both building energy conversation and creating a comfortable living environment in future.

scholarly journals Research on the Efficiency and Economic Impact of Energy-Saving Transformation of Residential Buildings in Different Climatic Regions of China

2015 ◽  
Vol 2015 ◽  
pp. 1-9 ◽  
Author(s):  
Qibo Liu ◽  
Wei Feng
Keyword(s):  
Energy Saving ◽  
Economic Efficiency ◽  
Residential Buildings ◽  
Policy Formulation ◽  
Building Envelope ◽  
Simulation Software ◽  
Existing Buildings ◽  
Existing Building ◽  
Climatic Regions ◽  
Saving Effect

In China, the transformation of existing buildings is confronted with various problems in aspects ranging from technology to policy and even to economic efficiency, which restrains the pace of existing building transformation. Aiming at these conditions, a building model is established with simulation software in the research herein to deeply analyze the energy-saving effect of building envelope transformation in different climatic regions and its economic efficiency based on regional and national policies. The research results show that any single technology is difficult to completely satisfy the requirements of current energy efficiency standards, and technical measures should be taken according to different climatic regions. For the northern heating area, the building envelope transformation must be carried out simultaneously with the transformation of heat metering. Policy formulation and fund determination for the energy-saving transformation of existing buildings in China should be more flexible based on transformation effect and rely more on social and commercial forces rather than solely on the promotion of government.

Energy Consumption and Economic Analysis to Residential Building Meeting the Criterion of 65% Energy Saving in Zhangjiakou

2011 ◽  
Vol 225-226 ◽  
pp. 239-242 ◽  
Author(s):  
Hong Lei Ma ◽  
Jian Hui Niu
Keyword(s):  
Energy Consumption ◽  
Economic Analysis ◽  
Energy Saving ◽  
Residential Building ◽  
Building Energy ◽  
Simulation Software ◽  
Design Standard ◽  
Third Stage ◽  
Building Energy Saving ◽  
Saving Effect

An energy saving residential building in Zhangjiakou was took as research object, which was designed and constructed according to the criterion of 65% energy saving of the third stage, utilizing simulation software Dest, which was developed by Qinghua University, energy consumption simulation and economic analysis were done to the building. The results show that compared with the former residence which was built according to the non-energy saving design, the implementation of new design standard for building energy saving can not only achieve better energy saving effect, but also its payback period is short, so the new design standard for building energy saving is worth spreading.

scholarly journals The impact of building envelope retrofit measures on postwar MURBS in Toronto

2021 ◽  
Author(s):  
Sara Damyar
Keyword(s):  
Energy Consumption ◽  
Energy Saving ◽  
Energy Use ◽  
Energy Savings ◽  
Building Envelope ◽  
Simulation Software ◽  
Energy Simulation ◽  
Reduce Energy Consumption ◽  
The Impact ◽  
Current Standards

Building envelope retrofits is one of the options available to reduce energy consumption of postwar MURBs in Toronto. This study evaluates the impact of building envelope retrofits that meet current standards on energy consumption of a Toronto postwar MURB; utilizing eQUEST energy simulation software. Further upgrades also take place to evaluate how the impact of building envelope retrofits on energy use can be increased and optimized for all assemblies of building envelope and airtightness. Moreover, the retrofit strategies are ranked based on cost and energy-saving effectiveness. The results of the analysis reveal that building envelope retrofit based on OBC-2012 standards can reduce the energy consumption by up to 44%. Furthermore, the optimal RSI values of all building envelope components were found to be equal or less than code requirements which outcomes significant energy savings. Lastly, the ranking of the strategies helps to identify the best option according to the priorities of a project.

Simulation Analysis of Building Energy Consumption with Different Surface-Volume-Ratio and Envelop Performance of Rural Dwellings

2014 ◽  
Vol 953-954 ◽  
pp. 1578-1583
Author(s):  
Tian Yu Xiong ◽  
Xiu Zhang Fu ◽  
Jian Dong
Keyword(s):  
Energy Consumption ◽  
Energy Saving ◽  
Simulation Analysis ◽  
Volume Ratio ◽  
National Standard ◽  
Heating And Cooling ◽  
Detached House ◽  
The Difference ◽  
Saving Effect ◽  
The Impact

Rural dwellings have a big difference in the appearance and envelope. Living form is changing a lot from detached house to the apartment in multi-story apartments. These changes affect building’s energy consumption consisting of heating and cooling. This paper focuses on the impact of the energy consumption affected by different surface volume ratios, simulation analysis showed a general argument of the difference. And for the same house type, this paper also compares the energy-saving effect of different envelop performances, Specific contents are the heat transfer coefficient and shading ways. Simulation results identified that SVR has influence on different types of houses, the energy consumption of row houses can be saved more than 30% compared with detached houses. Envelope performance also affects energy consumption and the national standard is recommended for the energy saving and the comfort.

scholarly journals The impact of building envelope retrofit measures on postwar MURBS in Toronto

2021 ◽  
Author(s):  
Sara Damyar
Keyword(s):  
Energy Consumption ◽  
Energy Saving ◽  
Energy Use ◽  
Energy Savings ◽  
Building Envelope ◽  
Simulation Software ◽  
Energy Simulation ◽  
Reduce Energy Consumption ◽  
The Impact ◽  
Current Standards

Building envelope retrofits is one of the options available to reduce energy consumption of postwar MURBs in Toronto. This study evaluates the impact of building envelope retrofits that meet current standards on energy consumption of a Toronto postwar MURB; utilizing eQUEST energy simulation software. Further upgrades also take place to evaluate how the impact of building envelope retrofits on energy use can be increased and optimized for all assemblies of building envelope and airtightness. Moreover, the retrofit strategies are ranked based on cost and energy-saving effectiveness. The results of the analysis reveal that building envelope retrofit based on OBC-2012 standards can reduce the energy consumption by up to 44%. Furthermore, the optimal RSI values of all building envelope components were found to be equal or less than code requirements which outcomes significant energy savings. Lastly, the ranking of the strategies helps to identify the best option according to the priorities of a project.

Analysis on the Energy-Saving Property of Solar Heat Reflective Coatings on Building in Beijing

2014 ◽  
Vol 787 ◽  
pp. 159-163 ◽  
Author(s):  
Qian Jin Mao ◽  
Qiu Rui Lv ◽  
Ya Li Wang ◽  
Xiao Yu Ma ◽  
Rui Wang ◽  
...  
Keyword(s):  
Energy Consumption ◽  
Energy Saving ◽  
Building Envelope ◽  
Heat Gain ◽  
Reflective Coating ◽  
South Wall ◽  
The Common ◽  
North Wall ◽  
Saving Effect ◽  
Reflective Coatings

To discuss the effect of energy saving of heat-reflective coating on building, the heat gain of exterior building envelope in summer and winter in Beijing has been calculated. The results indicated that the higher the reflectivity of coating, the better the energy saving effect. The energy consumption of roof and different direction walls were analyzed. The energy saving effect on roof is the best, however the effect is not obvious on the east and west walls. The heat reflective coating has no effect on north wall but exhibits effect on south wall. The energy saving effect of brick red heat-reflective coating is not obvious compared with the common brick red coating.

scholarly journals Study on Energy Saving Application Strategy of New Residential Houses Envelope Structure in Sanjiangyuan Area Based on Dest Orthogonal Simulation

2019 ◽  
Vol 136 ◽  
pp. 02036
Author(s):  
Yueheng Tong ◽  
Yang Chen ◽  
Wubing Shao
Keyword(s):  
Energy Consumption ◽  
Energy Conservation ◽  
Energy Saving ◽  
Simulation Analysis ◽  
Residential Buildings ◽  
Rapid Development ◽  
Social Economy ◽  
Building Energy ◽  
Building Envelope ◽  
The North

With the rapid development of social economy, the problem of energy is becoming more and more serious, building energy conservation has become the top priority. Considering the abundant solar energy resources in the Sanjiangyuan area, this paper takes reduce the energy consumption of local residential noumena as the objective, and takes energy consumption of residential system as research target. Taking the modern dwellings in the Sanjiangyuan area as an example, to build a typical model, using the Dest software developed by Tsinghua University to dynamically simulate the load variation of building envelope caused by windows, exterior walls, window wall ratio and roof, and 16 orthogonal test results are simulated. Through the simulation analysis of the upper floors of the building, this study explores the changes in the influence of the form of the envelope structure on the building, then analyse the sensitivity of each factor affecting building energy consumption, and find out the optimal scheme of the envelope in the locality. Finally, this paper suggests that the energy conservation of new residential buildings in Sanjiangyuan area should strengthen the thickness of thermal insulation layer of envelop, open large windows in the south, open small windows in the north, and choose energy saving windows with low heat transfer coefficient to reduce energy consumption and save energy.

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