Design of A GUI Tool for the Prediction of Building Energy Performance

2010 ◽  
Vol 29-32 ◽  
pp. 2789-2793
Author(s):  
Cheng Wen Yan ◽  
Jian Yao ◽  
Jin Xu
Keyword(s):  
Bp Neural Network ◽  
Energy Efficient ◽  
Building Energy ◽  
Energy Performance ◽  
Building Envelope ◽  
Building Energy Efficiency ◽  
Building Energy Performance ◽  
Mathematical Equations ◽  
Building Physics ◽  
Energy Efficient Building

In the present study a GUI tool for the prediction of building energy performance based on a three-layered BP neural network and MATLAB was developed. The inputs for this tool are the 18 building envelope parameters. The outputs are building heating, cooling and total energy consumptions and the energy saving rate. Compared with the complicated mathematical equations, this tool provides a very easy and effective method for students to learn the effects of building envelope performance parameters on the building energy performance. Thus, this tool can be used in building physics and building energy efficiency courses for the design of energy efficient building.

scholarly journals Energy performance of buildings in European Union countries and Ukraine

2019 ◽  
Vol 1 (52) ◽  
pp. 185-190
Author(s):  
Alla Kariuk ◽  
Roman Mishchenko ◽  
Volodymyr Pents ◽  
Vira Shchepak
Keyword(s):  
Energy Efficiency ◽  
Heat Exchange ◽  
Building Energy ◽  
Energy Performance ◽  
Building Envelope ◽  
Building Energy Efficiency ◽  
Building Energy Performance ◽  
Energy Performance Of Buildings ◽  
Building Insulation ◽  
The Eu

Complex comparative analysis of building energy performance rates in EU countries and Ukraine has been carried out.The relation between building insulation rates and European countries climate condition has been investigated. It is illustratedthat there is a significant gap between building energy efficiency characteristics in Ukraine and in most of the EU countries.Economically justified rates of building envelope heat exchange resistance which can lead Ukraine to common Europeanlevel based on optimized calculations are suggested. The necessity for further increase in building envelope heat exchange resistancerates in order to raise building energy efficiency and put Ukrainian building regulations in harmony with EU countriescorresponding norms is proved.

scholarly journals BUILDING ENERGY AND ARCHITECTURAL FORM RELATIONSHIPS / PASTATO ENERGIJOS IR ARCHITEKTŪRINĖS FORMOS RYŠIAI

2011 ◽  
Vol 3 (3) ◽  
pp. 67-71 ◽  
Author(s):  
Roberts Riekstiņš
Keyword(s):  
Energy Efficiency ◽  
Environmental Sustainability ◽  
Energy Efficient ◽  
Large Scale ◽  
Building Energy ◽  
Substantial Part ◽  
Building Energy Efficiency ◽  
Total Energy Consumption ◽  
Architectural Form ◽  
Energy Efficient Building

Energy efficiency of buildings, of course, is now a major issue in the construction industry. It is being widely examined both among construction professionals and amateurs. There is no doubt that energy efficiency as a key factor in ensuring environmental sustainability will become the main driving force of the construction in the future. Buildings have to become more energy-efficient. This opinion is supported by the existing energy-use balance in Europe, indicating that the housing sector spends almost half of total energy consumption and building sector forms more than a third of total CO2 emissions (Bradley 2010). While discussing the subject of building energy efficiency, mostly different technical characteristics of buildings and engineering solutions are talked over. However, it has been relatively little examined how energy-efficient design affects the building’s architecturally-aesthetic side, styles of expression and trends in the architect’s profession. We learn that the essence for an energy-efficient building lies in smart modesty (Bokalders, Block 2010) and the rational utilization of materials (aim high – go low). And still – can energy efficient building be expressive, extravagant, and perhaps – even ambitious? There are many ideas implemented in projects which show that energy efficiency is not an obstacle to large scale architectural ideas. However, in order to combine architectural and artistic ambitions with the principles of sustainability, architects should search for an entirely new approach to architectural expression based on a detailed assessment of solutions applied from environmental point of view. It requires a complex understanding of building shape, applied technologies, energetic benefits and cost parameters. This article identifies the realised and experimental projects of the world and presents an analysis of classification of buildings according to typology. This publication gives general impression of the amplitude and topicality of the study issue, as well as the diversity applied to the architectural techniques. The article concludes that even creating a building’s shape in a smart way makes it possible to use substantial part of the renewable energy offered by nature.

scholarly journals Thermal Imaging for Detection of Defects in Envelopes of Buildings in Use: Qualitative and Quantitative Analysis of Building Energy Performance

2018 ◽  
Author(s):  
Anna Ostańska
Keyword(s):  
Quantitative Analysis ◽  
Thermal Imaging ◽  
Building Energy ◽  
Energy Performance ◽  
Building Envelope ◽  
Qualitative And Quantitative Analysis ◽  
Infrared Images ◽  
Building Energy Performance ◽  
Qualitative And Quantitative ◽  
Energy Performance Of Buildings

The proposed interdisciplinary method of identifying defects in the building envelope insulation enables the user to quickly assess the scale of heat loss problems in occupied buildings. The method rests upon the quantitative analysis of macroscopic infrared images of the buildings. The method was applied in practice to assess effects of thermal upgrade project in Dźbów housing estate in Częstochowa, a city located in southern Poland. The results confirmed the applicability of the method to monitoring energy performance of buildings in use without intervention into the building’s fabric and without disturbing the occupants.

scholarly journals Impact of orientation and building envelope characteristics on energy consumption case study of office building in city of Nis

2018 ◽  
Vol 22 (Suppl. 5) ◽  
pp. 1499-1509
Author(s):  
Miomir Vasov ◽  
Jelena Stevanovic ◽  
Veliborka Bogdanovic ◽  
Marko Ignjatovic ◽  
Dusan Randjelovic
Keyword(s):  
Energy Consumption ◽  
Early Stage ◽  
Building Energy ◽  
Energy Performance ◽  
Building Envelope ◽  
Office Building ◽  
Climatic Data ◽  
Building Energy Efficiency ◽  
Maximum Difference ◽  
Heating And Cooling

Buildings are one of the biggest energy consumers in urban environments, so its efficient use represents a constant challenge. In public objects and households, a large part of the energy is used for heating and cooling. The orientation of the object, as well as the overall heat transfer coefficient (U-value) of transparent and non-transparent parts of the envelope, can have a significant impact on building energy needs. In this paper, analysis of the influence of different orientations, U-values of envelope elements, and size of windows on annual heating and cooling energy for an office building in city of Nis, Serbia, is presented. Model of the building was made in the Google SketchUp software, while the results of energy performance were obtained using EnergyPlus and jEplus, taking into ac-count the parameters of thermal comfort and climatic data for the area of city of Nis. Obtained results showed that, for varied parameters, the maximum difference in annual heating energy is 15129.4 kWh, i. e per m2 27.75 kWh/m2, while the maximum difference in annual cooling energy is 14356.1 kWh, i. e per m2 26.33 kWh/m2. Considering that differences in energy consumption are significant, analysis of these parameters in the early stage of design process can affect on increase of building energy efficiency.

Investigating Skill Gaps in Green Building Skills for Energy Efficiency

2014 ◽  
Vol 1073-1076 ◽  
pp. 1282-1287 ◽  
Author(s):  
Godwin U. Aliagha ◽  
Alfred P.T. Goh ◽  
Mat Naim Abdullah ◽  
Nadzri M. Jaafar ◽  
Stephen E. Eluwa
Keyword(s):  
Energy Efficiency ◽  
Energy Efficient ◽  
Online Survey ◽  
Green Building ◽  
Building Energy ◽  
Diagnostic Tools ◽  
Building Energy Efficiency ◽  
Available Energy ◽  
Skill Gaps ◽  
Energy Efficient Building

Shortage of green skills has become a major constraint to energy efficient building programs and policies of Malaysia and many Asian countries. Yet, studies aimed at green skills are rare. Relying on an online survey of 99 professionals accredited by the Malaysian Green Building Index (GBI) this study seeks to: [1] identify the necessary green skills required for design and delivery of energy efficient building; and [2] identify and capture areas of skill gaps based on available and future green skills needs. Our preliminary result reveals that generally, available energy efficient green skills in Malaysia are below average. The highest skill gaps were found to be in the areas of energy efficiency maintenance for HVAC system, competence in use of diagnostic tools to measure building energy efficiency, carbon storage and capture in buildings and competency of architects/ builders in passive designs and installation.

scholarly journals Town planning parameters in the function of building energy efficiency

2015 ◽  
Vol 13 (1) ◽  
pp. 1-9
Author(s):  
Ivana Bogdanovic-Protic ◽  
Mihailo Mitkovic
Keyword(s):  
Energy Efficiency ◽  
Energy Consumption ◽  
Comparative Analysis ◽  
Energy Efficient ◽  
Building Energy ◽  
Town Planning ◽  
Building Energy Efficiency ◽  
Heating Energy Consumption ◽  
Energy Efficient Building ◽  
Least Energy

Energy efficient building is that consuming the least energy while providing comfort. The energy consumption of buildings, in general, as well as in Serbia, is among other things conditioned by the heating, cooling and lighting requirements with a goal of achieving of thermal and light comfort. Heating energy consumption is the result of heat loss and gain, and their values, in addition to other parameters, depend on town planning parameters. The paper focuses on the comparative analysis of impact of building different exposures to wind as well as on impact of the different prevailing orientations on energy efficiency of buildings.

scholarly journals Energy and Economic Analysis of Tropical Building Envelope Material in Compliance with Thailand’s Building Energy Code

2019 ◽  
Vol 11 (23) ◽  
pp. 6872 ◽  
Author(s):  
Pathomthat Chiradeja ◽  
Atthapol Ngaopitakkul
Keyword(s):  
Energy Consumption ◽  
Energy Efficient ◽  
Building Energy ◽  
Energy Performance ◽  
Payback Period ◽  
Building Envelope ◽  
Economic Feasibility ◽  
Building Energy Consumption ◽  
Building Envelopes ◽  
Envelope Material

The building envelope has a direct impact on the overall energy consumption of a building. Thus, an improvement in the building envelope using energy-efficient material can yield the desired energy performance. This study is based on the materials and compositions used in building envelopes in compliance with the building energy code of Thailand. The building under study is an educational building located in Bangkok, Thailand. Both the energy and the economic aspects of retrofitted building envelopes are discussed in this study. The energy performance was evaluated by calculating the thermal transfer value and whole building energy consumption using the building energy code (BEC) software. The simulation was done under the assumption that the building envelope in the case study building was retrofitted with different materials and compositions. The study determines the feasibility of retrofitting buildings using energy-efficient material by utilizing the discounted payback period and internal rate of return (IRR) as indicators. The results show that retrofitted building envelopes in every case can reduce the whole building energy consumption. In the best envelope configuration, energy consumption can decrease by 65%. In addition, the economic potential is also high, with an IRR value of approximately 15% and a payback period of 23 less than nine years. These finding indicate that a building envelope made with energy-efficient material can achieve good results for both energy performance and economic feasibility.

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