scholarly journals Projeto arquitetônico para a cidade de Catalão/GO: diretrizes para a zona bioclimática 6

2017 ◽  
Vol 14 (1) ◽  
Author(s):  
Débora Adiane Borges ◽  
Antover Panazzolo Sarmento ◽  
Gabriel Bernardes de Carvalho
Keyword(s):  
Energy Efficiency ◽  
Energy Consumption ◽  
Architectural Design ◽  
Residential Buildings ◽  
High Energy ◽  
Bioclimatic Zone ◽  
Maximum Comfort ◽  
The City ◽  
Solar Orientation ◽  
High Energy Consumption

O conforto dos usuários de um ambiente costuma estar atrelado a um alto consumo de energia constituindo um possível problema ambiental. A bioclimatologia é uma das táticas utilizadas para reduzir o consumo de energia com máximo conforto para os usuários através do projeto arquitetônico. Existem normas e diretrizes que especificam estratégias de desempenho térmico, entre elas, a NBR 15220 (ABNT, 2005) é uma norma brasileira que apresenta recomendações para diferentes regiões e zonas bioclimáticas do país. Além dela, existe a NBR 15575 (ABNT, 2013), a Portaria n° 18 de 2012 (RTQ-R: Regulamento Técnico da Qualidade para o Nível de Eficiência Energética em Edificações Residenciais) e o Selo Casa Azul. Este trabalho avaliou as diretrizes construtivas de todas essas publicações para a Zona Bioclimática 6 (ZB6), onde se encontra a cidade de Catalão, objetivando encontrar as melhores estratégias arquitetônicas que podem ser implantadas nas casas de classe média dessa cidade. Utilizou-se o software DLN e dados do INMET para avaliação da orientação solar e dos ventos verificando as recomendações mais pertinentes para Catalão e região. Entre os resultados encontrados estão os tipos de vedações e coberturas, estratégias de condicionamento e posicionamento e dimensionamento das aberturas. A principal contribuição deste estudo foi identificar as características necessárias a um projeto arquitetônico, que atende a bioclimatologia, possibilitando maior eficiência energética para a ZB6, com destaque à cidade de Catalão. Abstract The comfort of users of an environment is usually linked to a high energy consumption, which constitutes a true environmental problem. The bioclimatology is one strategy used to reduce energy consumption with maximum comfort to users through the architectural design. There are standard and guidelines that specify thermal performance strategies, including the NBR 15220 (ABNT, 2005) is a Brazilian standard that makes recommendations for different regions and bioclimatic zones of the country. Beyond it, there is the NBR 15575 (ABNT, 2013) Portaria n°. 18 of 2012 (RTQ-R: Quality Technical Regulation for Energy Efficiency of Residential Buildings in level) and the Blue House Seal. This work assessed the constructive guidelines of all these publications to the bioclimatic zone 6, where it is the city of Catalão, aiming at finding the best architectural strategies that can be deployed in middle-class houses of this city. It was used the DLN software and INMET data for evaluation of solar orientation and wind orientation looking at the most relevant recommendations to Catalão and region. Some results are the types of wall and cover, conditioning strategies and positioning and sizing of the openings. The work contributes to identify the characteristics necessary for an architectural project, which attends to bioclimatology, allowing greater energy efficiency for ZB6, with emphasis on the city of Catalão.

scholarly journals Understanding the Incremental Impact of Built Environment on Climate Change of Metropolitan City Karachi

2020 ◽  
Vol 39 (4) ◽  
pp. 678-685
Author(s):  
Nimra Kanwal ◽  
Nuhzat Khan
Keyword(s):  
Climate Change ◽  
Energy Consumption ◽  
Residential Buildings ◽  
Building Design ◽  
High Energy ◽  
Metropolitan City ◽  
Green Area ◽  
The World ◽  
The Impact ◽  
The City

Buildings are the most important part of development activities, consumed over one-thirds of the global energy. Household used the maximum energy around the world, likewise in Pakistan residential buildings consumed about half of total energy (45.9% per year). The study aims to analyze the impact of building design on climate of Metropolitan City Karachi, Pakistan and to evaluate the change in urbanization patterns and energy consumption in the buildings. To have better understanding of the issues correlations was established amongst population, urbanization patterns, green area, number of buildings (residential and commercial), building design, energy consumption and metrological records (climate change parameters) by collecting the data from the respective departments. With the help of the collected data amount of carbon dioxide was estimated. The results reveled that during last 36 years the urban population of Karachi increased exponentially from 5,208,000 (1981) to 14,737,257 (2017) with increase in urbanized area from 8.35 km2 (1946) to 3,640 km2 (2017) that may led to reduce the green area of the city from 495,000 hectors (1971) to 100,000 hectors (2015). Moreover, the building’s design and numbers are being changed from 21 high-rise buildings (2009) to 344 (2017). It may be concluded that change in temperature pattern and climatic variability of the city may be due to increase in population and change in lifestyle that lead to high energy consumption that is prime source of increased in CO2 emission in the environment of Karachi city, However, Greenhouse Gases (GHG) releases are much lower than the levels reported from metropolitan cities around the world.

Unscrambling the Building Envelope Insulation Technique in "Tianjin Energy Efficiency Design Standard for Rural Residential Buildings"

2013 ◽  
Vol 805-806 ◽  
pp. 1519-1523 ◽  
Author(s):  
Chang Feng Wang ◽  
Guo Qiang Fan
Keyword(s):  
Energy Efficiency ◽  
Energy Consumption ◽  
Residential Buildings ◽  
Minimum Energy ◽  
High Energy ◽  
Building Envelope ◽  
Minimum Energy Consumption ◽  
Tianjin City ◽  
Energy Efficiency Standard ◽  
Energy Efficiency Standards

In order to solve problems of high energy consumption and poor indoor thermal comfort in existing rural residential buildings, Tianjin city developed Tianjin energy efficiency standard for rural residential buildings, the building envelope insulation technique in the standard-including determination of heat transfer coefficient, principle of choosing insulation materials for building envelope, energy efficiency standards of walls, windows, and roofs are unscrambled particularly in this paper. It is suggested that natural materials and appropriate techniques are used to achieve the energy-saving goal for rural residential buildings with minimum energy consumption.

scholarly journals Evaluating the potential energy savings of residential buildings and utilizing solar energy in the middle region of Saudi Arabia – Case study

2020 ◽  
pp. 014459872097514
Author(s):  
AbdulRahman S Almushaikah ◽  
Radwan A Almasri
Keyword(s):  
Energy Efficiency ◽  
Saudi Arabia ◽  
Energy Consumption ◽  
Solar Energy ◽  
Residential Buildings ◽  
Energy Performance ◽  
High Energy ◽  
Building Envelope ◽  
Economic Feasibility ◽  
Middle Region

Lately, with the growth in energy consumption worldwide to support global efforts to improve the climate, developing nations have to take significant measures. Kingdom of Saudi Arabia (KSA) implemented meaningful policy actions towards promoting energy efficiency (EE) in several sectors, especially in the building sector, to be more sustainable. In this paper, various EE measures and solar energy prospects are investigated for the residential sector, in two locations in the middle region of the KSA. An energy performance analysis of pre-existing residential buildings with an overall design is performed using simulation programs. However, installing EE measures in the building envelope is important to achieve an efficient sector regarding its energy consumption. The findings showed that applying EE measures for the building envelope, walls, roof, and windows should be considered first that makes the energy conservation possible. In Riyadh, EE measures are responsible for reducing energy consumption by 27% for walls, 14% for roof, and 6% for window, and by 29%, 13%, and 6% for walls, roof, and windows, respectively, for Qassim. However, the most impactful EE solution was selecting a heating, ventilation, and air conditioning (HVAC) system with a high energy efficiency rate (EER), which can minimize the energy consumption by 33% and 32% for Riyadh and Qassim, respectively. The study's feasibility showed that the number of years needed to offset the initial investment for a proposed roof PV system exceeds the project's life, if the energy produced is exported to the grid at the official export tariff of 0.019 $/kWh. However, the simple payback time was 13.42 years if the energy produced is exported to the grid at a rate of 0.048 $/kWh, reflecting the project's economic feasibility.

scholarly journals Effectiveness of High Energy Efficiency to Minimize Energy Consumption for Residential Buildings in Egypt

2020 ◽  
Vol 165 (0) ◽  
pp. 78-95
Author(s):  
Gehad Mohamed Abdelsalam ◽  
Zeinab Mohamed EL Razzaz ◽  
Fatma Elnekhaily
Keyword(s):  
Energy Efficiency ◽  
Energy Consumption ◽  
Residential Buildings ◽  
High Energy ◽  
High Energy Efficiency

Study on Eco-Clothing with Multiple Style Transformation in the Background of Cyclic Economy

2013 ◽  
Vol 694-697 ◽  
pp. 3239-3242 ◽  
Author(s):  
Wei Zhen Wang ◽  
Shu Lian Yu ◽  
Qi Zhen Wang ◽  
Yu Bing Luan ◽  
Jing Zhen Wang ◽  
...  
Keyword(s):  
Energy Efficiency ◽  
Life Cycle ◽  
Energy Consumption ◽  
Raw Materials ◽  
Apparel Industry ◽  
High Energy ◽  
Environment Friendly ◽  
Clothing Style ◽  
Consumption Situation ◽  
High Energy Consumption

In view of high energy consumption situation in the apparel industry in the background of cyclic economy, the author conducts technical experiment for clothing style change according to transformation design of clothing structure elements, and establishes the environmental protection philosophy of enabling raw materials for one garment to satisfy the function of raw materials for two or more garments. This not only maximizes the energy efficiency of clothing materials, but also optimizes life cycle of products, and accordingly promotes the energy-saving and environment-friendly eco-civilization construction in the apparel industry.

scholarly journals Energy efficiency evaluation of a natural gas pipeline based on an analytic hierarchy process

2017 ◽  
Vol 9 (7) ◽  
pp. 168781401771139 ◽  
Author(s):  
Ying Xie ◽  
Xiufen Ma ◽  
Haifeng Ning ◽  
Zongming Yuan ◽  
Ting Xie
Keyword(s):  
Energy Efficiency ◽  
Energy Consumption ◽  
Natural Gas ◽  
Evaluation Model ◽  
High Energy ◽  
Gas Pipeline ◽  
Efficiency Evaluation ◽  
Natural Gas Pipeline ◽  
Energy Efficiency Evaluation ◽  
High Energy Consumption

A long-distance natural gas pipeline system consists of considerable equipment and many pipe segments, but the conventional energy efficiency index of a natural gas pipeline is considered as a whole. Because the specific energy consumption of each unit cannot be determined, the index system is not perfect, and evaluating the energy efficiency of a natural gas pipeline system is difficult. The energy efficiency evaluation model for a natural gas pipeline was established using the analytic hierarchy process. A judgment matrix was constructed based on the energy efficiency index system of a long-distance natural gas pipeline, and the weight coefficient was calculated using the characteristic root method. Then, the consistency of the established judgment matrix was verified. The energy efficiency evaluation model successfully quantified the qualitative factors that affect natural gas pipelines. The comprehensive energy efficiency coefficient G of the natural gas pipeline was obtained from the operational data of the natural gas pipeline; then, the equipment or pipe segments with high energy consumption can be identified. The energy efficiency evaluation program of the natural gas pipeline was developed using Visual Basic for Applications, which significantly reduced the evaluation workload. The natural gas pipeline energy efficiency evaluation model is used to evaluate the energy efficiency of a natural gas pipeline, to identify the high energy consumption equipment or pipe segments, and to propose measures to improve the energy efficiency. The results show that the gas pipeline energy efficiency evaluation model and evaluation procedures can identify high energy consumption equipment or pipe sections in complex natural gas pipelines.

Energy Analysis and Optimization of Methyl Chlorosilane Separation

2013 ◽  
Vol 690-693 ◽  
pp. 3082-3085
Author(s):  
Ji Hai Duan ◽  
Xin Mei
Keyword(s):  
Energy Efficiency ◽  
Energy Consumption ◽  
Energy Analysis ◽  
Process Integration ◽  
Aspen Plus ◽  
High Energy ◽  
Separation Process ◽  
Original Process ◽  
Composite Curve ◽  
High Energy Consumption

The main problem of existing methyl chlorosilane separation process is high energy consumption and low products purity. Based on the column grand composite curve is established by Aspen Plus and combined with the process integration technology, a modification of the process is proposed to improve the energy efficiency. Compared with the original process, the total condense and reboiler duty decrease by 8.47%, 8.96% respectively.

scholarly journals Increasing the energy efficiency of the city-forming organizations of ferrous metallurgy

2021 ◽  
Vol 284 ◽  
pp. 01006
Author(s):  
Kymbat Kunanbaeva ◽  
Shakizada Niyazbekova ◽  
Symbat Olzheken ◽  
Sergey Ryabichenko
Keyword(s):  
Energy Efficiency ◽  
Energy Consumption ◽  
Ferrous Metallurgy ◽  
Energy Intensity ◽  
High Energy ◽  
Energy Resources ◽  
Social Significance ◽  
High Concentration ◽  
The City

The issues of increasing the energy efficiency of the city-forming organizations of ferrous metallurgy are considered in this paper. Ferrous metallurgy is characterized by a high concentration of city-forming organizations, high social significance, and high energy intensity. The paper studies the issues of energy consumption of the city-forming organizations of ferrous metallurgy, highlights the directions for increasing the efficiency of the use of energy resources.

scholarly journals Research on the national standard of the minimum allowable values of energy efficiency and energy efficiency grades for key sewage treatment equipment

2018 ◽  
Vol 53 ◽  
pp. 04010
Author(s):  
Huang Jin ◽  
Wang Yueping ◽  
Zhang Xinheng ◽  
Chen Bin ◽  
Shi Ming ◽  
...  
Keyword(s):  
Energy Efficiency ◽  
Wastewater Treatment ◽  
Energy Consumption ◽  
Sewage Treatment ◽  
High Energy ◽  
National Standard ◽  
Calculation Methods ◽  
Treatment Equipment ◽  
High Energy Consumption

This paper expounds the background and significance of the national standard of the development on the minimum allowable values of energy efficiency and energy efficiency grades for submersible pushing-flow agitator and rotary aerator in wastewater treatment, and introduces the general principle of the standard, the determination of the minimum allowable values of energy efficiency, the division of the energy efficiency grades for them, as well as the testing and calculation methods. It hopes to eliminate the production of the high energy consumption sewage treatment equipment, and enhance their level of the energy efficiency effectively through development and implementation of the national standard.

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