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.

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.

scholarly journals Assigning Robust Default Values in Building Performance Simulation Software for Improved Decision-Making in the Initial Stages of Building Design

2015 ◽  
Vol 2015 ◽  
pp. 1-11 ◽  
Author(s):  
Kyosuke Hiyama
Keyword(s):  
Design Patterns ◽  
Natural Ventilation ◽  
Building Design ◽  
Simulation Software ◽  
Building Performance ◽  
Performance Simulation ◽  
Existing Building ◽  
Building Performance Simulation ◽  
Convincing Argument ◽  
The Ideal

Applying data mining techniques on a database of BIM models could provide valuable insights in key design patterns implicitly present in these BIM models. The architectural designer would then be able to use previous data from existing building projects as default values in building performance simulation software for the early phases of building design. The author has proposed the method to minimize the magnitude of the variation in these default values in subsequent design stages. This approach maintains the accuracy of the simulation results in the initial stages of building design. In this study, a more convincing argument is presented to demonstrate the significance of the new method. The variation in the ideal default values for different building design conditions is assessed first. Next, the influence of each condition on these variations is investigated. The space depth is found to have a large impact on the ideal default value of the window to wall ratio. In addition, the presence or absence of lighting control and natural ventilation has a significant influence on the ideal default value. These effects can be used to identify the types of building conditions that should be considered to determine the ideal default values.

scholarly journals Double or single skin façade in a moderate climate an EnergyPlus assessment

2016 ◽  
Vol 20 (suppl. 5) ◽  
pp. 1501-1510 ◽  
Author(s):  
Aleksandar Andjelkovic ◽  
Jovan Petrovic ◽  
Miroslav Kljajic
Keyword(s):  
Energy Efficiency ◽  
Energy Consumption ◽  
Software Tool ◽  
Climatic Conditions ◽  
Simulation Software ◽  
Building Performance ◽  
Main Question ◽  
Building Performance Simulation ◽  
Double Skin

The research analyses the double skin fa?ades concept and their impact on the energy efficiency of buildings. This kind of fa?ade system has the ability to increase the energy efficiency and flexibility of buildings, while improving the quality of the indoor environment. The best way to develop and evaluate this complex type of building structure is the use of total building performance simulation in combination with experimental data. The overall research plan is based on experimental work, the process of validation and the numerical simulation of the validated model. Thus, the task of this part of the research is a comparative analysis between the current state of a building with double skin fa?ades and models with traditional envelope type. The main question that arises is whether and how the double skin fa?ades may contribute to the decrease in the energy consumption of the building by increasing the quality of the thermal comfort of the occupants. The simulation software tool, EnergyPlus in combination with airflow network algorithm, is used for modelling and all necessary energy calculations. The validated model in the analysis is used for comparative evaluation with models with traditional fa?ades. The simulation results for all the models analysed assess what their impact is on the energy consumption for heating and air-conditioning of the building. Comparing to models with traditional fa?ade, the energy analysis shows justification in the climatic conditions of Belgrade. Additionally, simulations results highlighted the necessity for an adequate control strategy of the double skin fa?ades application.

scholarly journals Strengths and Weaknesses of Existing Building Green Retrofits: Case Study of a LEED EBOM Gold Project

Energies ◽  
2018 ◽  
Vol 11 (8) ◽  
pp. 1936 ◽  
Author(s):  
Xiaonuan Sun ◽  
Zhonghua Gou ◽  
Yi Lu ◽  
Yiqi Tao
Keyword(s):  
Energy Saving ◽  
Light Emitting Diode ◽  
Green Roofs ◽  
Energy Performance ◽  
Building Performance ◽  
Performance Simulation ◽  
Existing Building ◽  
Building Performance Simulation ◽  
Energy Auditing ◽  
Operations And Maintenance

This study investigated the process of existing building green retrofits through examining a Leadership in Energy and Environmental Design for Existing Building: Operations and Maintenance (LEED EBOM) Gold project. The project demonstrated a standard green retrofit process for existing buildings, which includes energy auditing, building performance simulation, and measurement and verification. In this project, four energy conservation measures were applied to improve energy performance: light-emitting diode (LED) lighting, window films, green roofs, and chilled water plant upgrading and optimization. The expected energy saving was 30% after the retrofit; while the actual energy saving was 16%. The error of building performance simulation was one of uncertainties in this retrofit project. Occupancy conditions might be the main reason for this uncertainty. Strengths, weaknesses, opportunities and threats were identified and discussed for the green retrofit. The research results could be used to optimize the existing building retrofit process for better energy performance.

A design approach towards sustainable buildings in Algeria

2019 ◽  
Vol 9 (3) ◽  
pp. 229-245
Author(s):  
Sofiane Rahmouni ◽  
Rachid Smail
Keyword(s):  
Energy Consumption ◽  
Simulation Software ◽  
Cold Climate ◽  
Design Approach ◽  
Office Building ◽  
Design Stage ◽  
Building Performance ◽  
Sustainable Buildings ◽  
Content Type ◽  
Efficiency Measures

Purpose The purpose of this paper is to achieve the national strategic agenda’s criteria that aim for accomplishing sustainable buildings by estimating the effects of energy efficiency measures in order to reduce energy consumption and CO2 emission. Design/methodology/approach A design approach has been developed based on simulation software and a modeled building. Therefore, a typical office building is considered for testing five efficiency measures in three climatic conditions in Algeria. This approach is conducted in two phases: first, the analysis of each measure’s effect is independently carried out in terms of cooling energy and heating energy intensities. Then, a combination of optimal measures for each climate zone is measured in terms of three sustainable indicators: final energy consumption, energy cost saving and CO2 emission. Findings The results reveal that a combination of optimal measures has a substantial impact on building energy saving and CO2 emission. This saving can rise to 41 and 31 percent in a hot and cold climate, respectively. Furthermore, it is concluded that obtaining higher building performance, different design alternatives should be adapted to the climate proprieties and the local construction materials must be applied. Originality/value This study is considered as an opportunity for achieving the national strategy, as it may contribute in improving office building performance and demonstrating a suitable tool to assist stakeholders in the decision making of most important parameters in the design stage for new or retrofit buildings.

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.

Study on Resources and Environment of Rural Houses in Western China

2012 ◽  
Vol 518-523 ◽  
pp. 5939-5942
Author(s):  
Liang Bin Tan
Keyword(s):  
Energy Consumption ◽  
Energy Saving ◽  
Indoor Environment ◽  
Living Conditions ◽  
Living Environment ◽  
Natural System ◽  
Western China ◽  
Energy Sources ◽  
Rural People ◽  
Rural Living

With the acceleration of urbanization, the rural living environment and energy consumption have changed greatly. Through the analysis of the indoor environment and energy consumption of rural houses in western China, the author puts forward to a series of methods and ways to improve the rural living conditions and energy saving so that the rural houses to be built would decrease the interference of existing natural system as far as possible, reduce the utilization of one-off energy sources and improve the living environment of rural people fundamentally.

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.

scholarly journals Energy Consumption of the VAC System for Subway Stations: A Model Based on Theoretical Analysis and its Engineering Application

2019 ◽  
Vol 111 ◽  
pp. 06042
Author(s):  
Ziyi Su ◽  
Xiaofeng Li
Keyword(s):  
Energy Consumption ◽  
Theoretical Analysis ◽  
Energy Saving ◽  
Thermal Environment ◽  
Engineering Application ◽  
Environmental Parameters ◽  
Energy Model ◽  
Simulation Software ◽  
Model Based ◽  
Subway Stations

With the continuous expansion of the subway scale, the amount of energy consumed by subway stations has become a concern, among which the energy consumption of ventilation and air-conditioning (VAC) system takes a large proportion. There are many former studies concentrated on this topic. However, the problems of previous studies are obvious, such as time-consuming and unclear practical meaning of the energy model. This study has proposed a model based on theoretical analysis and focused on the energy model of the VAC system for underground subway stations. The energy model consists of the model for the cooling load and the energy efficient ratio. In this model, basic station information and environmental parameters should be tested and inputted. Then with the help of simple simulation tools, Subway Thermal Environment Simulation Software (STESS), the energy consumption of the station can be fast estimated by the model proposed in this paper. This model can be applied to determine the energy-saving potential of changing operation pattern and adopting energy-saving technologies, which gives guidance to the energy-saving retrofit of the station.

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