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 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.

Building performance in the context of industry pressures

2014 ◽  
Vol 8 (4) ◽  
pp. 527-543
Author(s):  
Craig Robertson ◽  
Dejan Mumovic
Keyword(s):  
Energy Consumption ◽  
Performance Assessment ◽  
Energy Gap ◽  
Building Energy ◽  
Energy Performance ◽  
Building Performance ◽  
Structured Interviews ◽  
Web Based ◽  
Actual Performance ◽  
Content Type

Purpose – This paper aims to explore the relationship between designed and actual building performance as represented in an Royal Institute of British Architects- and Chartered Institution of Building Services Engineers-backed web-based comparison platform and the industry perception of the pressures surrounding building performance assessment. European directives and UK Parliamentary Acts have resulted in a range of mechanisms aimed at encouraging monitoring of energy consumption, responsive management and evidence-based design. Web-based feedback platforms aim to feed evaluation data back to industry anonymously; however, there exists a range of barriers and disincentives that prevent widespread and habitual engagement with building evaluation. Design/methodology/approach – Using energy data from the CarbonBuzzweb platform and a series of semi-structured interviews, a mixed-methods study has been carried out. Analysis of the characteristics of the existing energy discrepancy between designed and actual performance shows where variance typically occurs. Interviews with industry actors presents a synopsis of the perceived and actual legislative and procedural pressures that exist in relation to building performance assessment. Findings – The conclusions of this paper identify weaknesses in the current legislative and incentivisation mechanisms with regard to targeting building energy performance and industrial pressures that hinder broader industry engagement with post-occupancy evaluation. Originality/value – The recommendations arising from this study are for adjustments to the existing legislative framework to increase participation in meaningful building energy evaluation targeted at the specifics of the energy gap and the motivations of industrial actors. This will specifically help to reduce building energy consumption and associated carbon emissions.

Impact of Building Orientation and Window-Wall Ratio on the Office Building Energy Consumption

2013 ◽  
Vol 409-410 ◽  
pp. 606-611 ◽  
Author(s):  
Zhen Yu ◽  
Wei Lin Zhang ◽  
Ting Yong Fang
Keyword(s):  
Energy Consumption ◽  
Air Conditioning ◽  
Building Energy ◽  
Simulation Software ◽  
Office Building ◽  
Building Energy Consumption ◽  
Total Energy Consumption ◽  
Building Orientation ◽  
Heating Energy Consumption ◽  
Energy Consumption Simulation

Using the energy consumption simulation software to research the HVAC in fall air conditioning mode, different building orientation and window-wall ratio of the office building energy consumption. The study found that the heating energy consumption, air-conditioning energy consumption and total energy consumption is gradually increased with the increase of the window-wall ratio under the same orientation. The result provides some reference for public buildings in setting of building orientation and window-wall ratio.

Applying lean production principles to facilities design of ramp-up factories

Facilities ◽  
2015 ◽  
Vol 33 (5/6) ◽  
pp. 280-301 ◽  
Author(s):  
Sui Pheng Low ◽  
Shang Gao ◽  
Kai Lin Tiong
Keyword(s):  
Lean Production ◽  
Design Model ◽  
Design Approach ◽  
Design Stage ◽  
Design Features ◽  
Content Type ◽  
Design Philosophy ◽  
Traditional Design ◽  
Facilities Design ◽  
Car Park

Purpose – This study aims to examine how lean production principles (LPP) can be incorporated in the context of ramp-up factories to improve future ramp-up factory designs. The application of LPP to the facilities design of ramp-up factories can help to reduce waste and achieve higher-quality products. However, the traditional design philosophy of “design follows function” has not considered the application of LPP during the early design development stage to more effectively meet tenants’ operational needs at the occupation stage. Design/methodology/approach – Based on a review of past literature, a set of LPP-driven facilities design features is presented, which seek to integrate traditional design principles and LPP. A survey was subsequently carried out with tenants operating in ramp-up factories to determine the relevance of the proposed LPP-driven facilities design features from their perspectives. Findings – It is found that generally most of the proposed LPP-driven facilities design features can help to improve tenants’ operational needs after the building is occupied. The study found that the significant LPP-driven facilities design features for ramp-up factories include: large span, clear floor-to-ceiling height, rectangular bay, wide frontage area, mezzanine floor system, evenly distributed lighting, white or light colour surfaces, private parking spaces, private loading/unloading bay, clearly defined car park entrance, wide vehicular ramp, wide driveway, sheltered loading/unloading bay and multi-storey car park embedded in the complex. The reasons for their significance are explained in the study. Practical implications – The LPP design model for ramp-up factories provides a useful checklist of important tenants’ requirements for the designers of ramp-up factories. This research also suggests that it is desirable to apply LPP in the design stage to improve the facilities design of ramp-up factories that is beneficial to tenants at the occupation stage. Originality/value – This research formulated a design model integrated with LPP for ramp-up factories. It extends the traditional design approach of “design follows function” to encompass LPP to transform the approach to a new LPP-driven facilities design philosophy. This new approach serves to better meet tenants’ requirements at the occupation stage. It is recommended that architecture schools incorporate the LPP-driven facilities design approach as one of their educational outcomes.

scholarly journals Heating and cooling requirement of an office building and urban rooftop greenhouse

2021 ◽  
Author(s):  
Andrea Vickers
Keyword(s):  
Food Security ◽  
Energy Consumption ◽  
Urban Agriculture ◽  
Energy Savings ◽  
Simulation Software ◽  
Office Building ◽  
Thermal Mass ◽  
Heating And Cooling ◽  
Several Variables ◽  
Potential Impact

Urban agriculture is an important step towards food security in cities where rooftop space is abundant, and underused. This research addresses the potential impact of adding a rooftop greenhouse to a six storey, detached office building on the total heating and cooling energy consumption of both structures operated year‐round, using IES‐VE simulation software. Several variables including the level of insulation between the office building and greenhouse, additional thermal mass, the greenhouse envelope and greenhouse internal loads were tested to observe trends that suggest an impact on the system’s conditioning energy due to the presence of the greenhouse. Overall, it was found to be most likely that the greatest energy savings for an integrated office building and rooftop greenhouse would be achieved with the highest resistance greenhouse envelope possible, which may be limited by the light needs of plants grown in the greenhouse, and incorporation of thermal mass in the greenhouse.

A review on indoor environmental quality (IEQ) and energy consumption in building based on occupant behavior

Facilities ◽  
2017 ◽  
Vol 35 (11/12) ◽  
pp. 684-695 ◽  
Author(s):  
Iman Asadi ◽  
Norhayati Mahyuddin ◽  
Payam Shafigh
Keyword(s):  
Energy Consumption ◽  
Human Behavior ◽  
Environmental Quality ◽  
Building Energy ◽  
Simulation Software ◽  
Indoor Environmental Quality ◽  
Occupant Behavior ◽  
Building Energy Consumption ◽  
Content Type ◽  
Behavior Simulation

Purpose The purpose of this paper is to review the concept of occupant behavior and its relation with indoor environmental quality (IEQ) and building energy consumption. The behavior is referred to any direct or indirect action, which is selected by an occupant to manage the unpleasant indoor environmental conditions. Thermal comfort, indoor air quality, aural comfort and visual comfort are the key factors of IEQ evaluation. Human behavior significantly interacts with energy consumption in buildings. Design/methodology/approach Each IEQ parameter was reviewed separately and the overall IEQ acceptance was considered. In addition, this paper reviews the methods that were used to measure and simulate the IEQ factors, energy consumption and human behavior. Finally, the lack of knowledge in this field is based on the review demonstrated. Findings Most studies considered one or two IEQ factors to evaluate IEQ acceptance in buildings. Further, weakness of simulating all IEQ factors at the same time is the deficiency of IEQ simulation, based on reviews. In the case of occupant behavior simulation, the uncertainly of human psychological parameter is a drawback to predict behavior. Originality/value Energy consumption, occupant health and productivity are related to IEQ. Human behavior affects building energy consumption directly. Simulation software and methods can predict IEQ factors and human behavior. Therefore, reviewing the existing studies is critical to find new methods for measuring and simulating IEQ, energy consumption and human behavior in buildings.

scholarly journals AVALIAÇÃO DO CICLO DE VIDA ENERGÉTICO (ACVE) E DO DESEMPENHO TÉRMICO DE UMA HABITAÇÃO DE LIGHT STEEL FRAMING COM O USO DE DIFERENTES TIPOS DE ISOLANTES TÉRMICOS

2016 ◽  
Vol 11 (2) ◽  
Author(s):  
Lucas Rosse Caldas ◽  
Rosa Maria Sposto ◽  
Alexandre Mendonça Souto Lopes ◽  
Werner Castro Tavares
Keyword(s):  
Life Cycle ◽  
Energy Consumption ◽  
Thermal Insulation ◽  
Thermal Performance ◽  
Simulation Software ◽  
Embodied Energy ◽  
Design Stage ◽  
International Studies ◽  
Total Energy Consumption ◽  
Steel Framing

RESUMO: Como forma de mensurar o consumo de energia ao longo do ciclo de vida dos diversos sistemas construtivos existentes, entre eles o light steel framing (LSF), tem sido aplicado a avaliação do ciclo de vida energético (ACVE). A ACVE foi aplicada em diversos estudos nacionais e internacionais, e no caso do LSF já foi verificado em alguns estudos nacionais. No entanto, ainda existe uma lacuna de estudos relacionados com o desempenho térmico e com os isolantes térmicos utilizados, principalmente por meio de simulações termoenergéticas. Neste sentido, o presente trabalho teve como objetivo avaliar a energia consumida ao longo do ciclo de vida de uma habitação de LSF, comparando o desempenho térmico deste sistema sem e com três isolantes térmicos, sendo eles: lã de vidro, lã de rocha e poliestireno expandido (EPS). A metodologia utilizada foi a pesquisa bibliográfica e simulação computacional em um software de simulação termoenergético. Ao final foi levantada a energia incorporada dos materiais utilizados nas fachadas, energia consumida nos transportes e energia gasta pelos equipamentos eletrônicos (energia operacional). A soma de todos estes consumos resultou na energia total, esta que foi maior para o sistema sem isolamento térmico e menor para o sistema com EPS. Neste sentido, a principal contribuição deste trabalho foi apresentar um critério de sustentabilidade energética para a especificação de isolantes térmicos para o sistema de LSF. Este critério poderá subsidiar, durante a etapa de projeto, a escolha do sistema mais vantajoso tanto do ponto de vista térmico como do consumo de energia ao longo do ciclo de vida da edificação. ABSTRACT: As a way to measure the energy consumption over the life cycle of the various existing building systems, including light steel framing (LSF), has been applied to evaluate the life cycle energy assessment (LCEA). The LCEA was applied in several national and international studies, and in the case of LSF has already been verified in some national studies. However, there is still a lack of research related to thermal performance and thermal insulation used, mainly through thermal-energetic simulations. In this context, this study aimed to evaluate the energy consumed throughout the life cycle of a LSF house, comparing the thermal performance of this system without and with three thermal insulations, which are: glass wool, rock wool and polystyrene expanded (EPS). The methodology used was the bibliographical research and computer simulation on a thermal-energetic simulation software. It was assessed the embodied energy of the materials used on the facades, energy consumed in transport and energy consumed by electronic equipment (operating energy). The sum of all these resulted in total energy consumption, this one was higher for the system without thermal insulation and lower to the system with EPS. In this sense, the main contribution of this paper is to present an energy sustainability criteria for the specification of thermal insulation for the LSF system. This criteria can support, during the design stage, the choice of the most advantageous system in terms of the thermal performance and the energy consumption throughout the life cycle of the building.

scholarly journals A Case Study of an Office Building to Identify Energy Consumption and Carbon Management Solutions Using Physical Data and Simulation Software

2021 ◽  
Vol 945 (1) ◽  
pp. 012049
Author(s):  
Ramesh Subramaniam ◽  
Vignes Ponniah ◽  
Shalini Sanmargaraja ◽  
Eric Lou ◽  
Muhammad Afiq Bin Nor Adli ◽  
...  
Keyword(s):  
Energy Consumption ◽  
Carbon Emission ◽  
Greenhouse Gas Emission ◽  
Building Energy ◽  
Energy Performance ◽  
Simulation Software ◽  
Office Building ◽  
Total Consumption ◽  
Physical Data

Abstract To measure the level of energy performance of a building, there are several categories of energy consumption to be calculated such as oil, natural gas and electricity. In order to significantly minimise the Greenhouse gas emission in an office, it is important to tap into the positive progress of energy efficiency of equipment which contributes to total energy performance of a building. Consequently, to enable accurate building energy consumption of a building, energy modelling method is applied to identify total consumption and cost of energy usage with effects of carbon emission. Hence, this will help to reduce the costing of energy inside building with differences of efficiency options. Therefore, this paper aims to analyse an office building in terms of the level of energy consumption and carbon emission as a case study. The first objective is to identify the amount of energy consumption and carbon emission inside the building using the simulation software. Secondly, to identify the differences between the data recorded through simulation software and physical data. Finally, to identify solutions to decrease the carbon emission by applying measures towards reducing energy consumption inside the building.

An investigation on energy consumption and part quality of stereolithography apparatus manufactured parts

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Jizhuang Hui ◽  
Zhiqiang Yan ◽  
Jingxiang Lv ◽  
Yongsheng Liu ◽  
Kai Ding ◽  
...  
Keyword(s):  
Tensile Strength ◽  
Energy Consumption ◽  
Layer Thickness ◽  
Laser Power ◽  
Dimensional Accuracy ◽  
Electrical Energy ◽  
Design Stage ◽  
Content Type ◽  
Part Quality

Purpose This paper aims to investigate the influences of process parameters on part quality, electrical energy consumption. Moreover, the relationship between part quality and energy consumption of UTR9000 photosensitive resin fabricated by stereolithography apparatus (SLA) was also assessed. Design/methodology/approach Main effect plots and contour maps were used to analyze the interactions and effects of various parameters on energy consumption and part quality, respectively. Then, a growth rate was used defined as the percentage of the value of energy consumption (or the part quality) of the sample compared to the minimum value of the energy consumption (or the same part quality), to jointly analyze relationships between part quality and energy consumption on a specific process parameter. Findings The part qualities can be improved with increased energy consumption via adjusting layer thickness, without further increasing energy consumption through adjusting laser power, over-cure and scanning distance. Energy consumption can be highly saved while slightly decreasing the tensile strength by increasing layer thickness from 0.09 mm to 0.12 mm. Energy consumption and surface roughness can be decreased when setting laser power near 290 mW. Setting an appropriate over-cure of about 0.23 mm will improve tensile strength and dimensional accuracy with a little bit more energy consumption. The tensile strength increases nearby 5% at a scanning distance of 0.07 mm compared to that at a scanning distance of 0.1 mm while the energy consumption only increases by 1%. Originality/value In this research, energy consumption and multiple part quality for SLA are jointly analyzed first to accelerate the development of sustainable additive manufacturing. This can be used to assist designers to achieve energy-effective fabrication in the process design stage.

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