Kinetic Building Envelopes for Energy Efficiency: Modeling and Products

2011 ◽  
Vol 71-78 ◽  
pp. 621-625 ◽  
Author(s):  
Zhan Tang Miao ◽  
Jing Li ◽  
Jia Liang Wang
Keyword(s):  
Energy Efficiency ◽  
Experimental Design ◽  
Sustainable Design ◽  
Building Envelope ◽  
Building Envelopes ◽  
Motion Patterns ◽  
Interdisciplinary Design ◽  
Motion Modes ◽  
Potential Applications ◽  
Insight Into

Adaptive Building Envelope was discussed in recent years and became a possible solution for energy efficiency. We conducted a study of kinetic building envelopes for energy efficiency in the context of an interdisciplinary design & modeling course in 2010 Fall. The goals of these experimental design & modeling projects are to explore the possibilities of motion modes, the integration with whole envelopes and the potentials of applications, and to provide insight into sustainable design. This paper provides an experimental account of kinetic logics and products, and summarizes kinetic motion patterns and potential applications.

scholarly journals Exploration of Microalgae Photobioreactor (PBR) in Tropical Climate Building Envelope

2020 ◽  
Vol 5 (14) ◽  
pp. 263-278
Author(s):  
Mohd Tajul Izrin Mohd Tajul Hasnan ◽  
Puteri Mayang Bahjah Zaharin
Keyword(s):  
Energy Efficiency ◽  
Energy Consumption ◽  
Open Access ◽  
Peer Review ◽  
Publishing House ◽  
Tropical Climate ◽  
Building Envelope ◽  
Building Envelopes ◽  
International Publishing ◽  
Open Access Article

The building sector in Malaysia consumes up to half of the electricity generated in the country. Therefore, there are needs to have a continuous effort to promote microalgae as part of an innovative building envelope system. This paper intends to investigate the potentiality of implementing the microalgae photobioreactor (PBR) in building envelopes in Malaysia. The findings from the precedent studies are synthesised into ten (10) parameters and translated into four (4) design modules. In conclusion, the suggested parameters are crucial in establishing microalgae photobioreactor (PBR) as a suitable prospect for energy efficiency in building envelopes in the tropical climate. Keywords: energy consumption; microalgae; photobioreactor; building envelope. eISSN: 2398-4287© 2020. The Authors. Published for AMER ABRA cE-Bs by e-International Publishing House, Ltd., UK. This is an open access article under the CC BYNC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). Peer–review under responsibility of AMER (Association of Malaysian Environment-Behaviour Researchers), ABRA (Association of Behavioural Researchers on Asians) and cE-Bs (Centre for Environment-Behaviour Studies), Faculty of Architecture, Planning & Surveying, Universiti Teknologi MARA, Malaysia. DOI: https://doi.org/10.21834/ebpj.v5i14.2166

scholarly journals Cost Control Methods for Efficient HVAC in Office Building

2019 ◽  
Vol 9 (2S2) ◽  
pp. 511-515
Keyword(s):  
Energy Efficiency ◽  
Indoor Air ◽  
Energy Cost ◽  
Sustainable Design ◽  
Hvac Systems ◽  
Building Envelope ◽  
Office Buildings ◽  
Office Building ◽  
Control Methods ◽  
Wall Construction

Achieving Energy Efficiency in Office Buildings plays a key role in reducing the Environmental Impact of Buildings to a larger extent. The Users in the workplace are often affected by the improper design of HVAC systems. In most of the office buildings the Indoor Environmental conditions were not designed, controlled and maintained which in turn increases the Energy cost of the buildings. Sustainable Design of HVAC Systems includes all the mechanical equipments that efficiently controls, monitors and supplies the Indoor Air. The objective of this paper is to (i) Do a comparative study and analyses the various building Envelope in office buildings for reducing the Energy Cost in designing HVAC systems in Office buildings using Ecotect Modelling.(ii) To compare the Energy cost of Water Cooled Screw Chillers and VRF Systems. The above experimentation was held in ELCOT S office building in salem. The findings of this paper revealed that usage of Porotherm wall construction along with VRF SYSTEMS in office buildings found to be effective in achieving sustainable HVAC design.

Impacts of building envelope design factors upon energy loads and their optimization in US standard climate zones using experimental design

2017 ◽  
Vol 141 ◽  
pp. 1-15 ◽  
Author(s):  
Seok-Gil Yong ◽  
Jong-Hyun Kim ◽  
Yuseong Gim ◽  
Jinho Kim ◽  
Jinkyun Cho ◽  
...  
Keyword(s):  
Experimental Design ◽  
Building Envelope ◽  
Climate Zones ◽  
Design Factors

scholarly journals Implementing Sustainability in Retrofitting Heritage Buildings. Case Study: Villa Antoniadis, Alexandria, Egypt

Heritage ◽  
2018 ◽  
Vol 1 (1) ◽  
pp. 57-87 ◽  
Author(s):  
Ahmed Khalil ◽  
Naglaa Hammouda ◽  
Khaled El-Deeb
Keyword(s):  
Energy Efficiency ◽  
Natural Ventilation ◽  
New Technologies ◽  
Sustainable Design ◽  
Adaptive Reuse ◽  
Renewable Energy Sources ◽  
Heritage Conservation ◽  
Base Case ◽  
Heritage Buildings

Sustainable design is believed to stand on the opposite side of heritage conservation. This view is supported by the fact that sustainable design requires invasive measures to implement new technologies and treatments that challenge the principle of minimum intervention in heritage conservation. Another point of view sees heritage conservation as an already act of sustainable development that protects and preserves social and cultural resources such as heritage buildings and their intangible values. On the other hand, research and practice have proven that heritage buildings can be the subjects of sustainable design projects that achieve outstanding measures of sustainability and energy efficiency while not compromising the authenticity of the heritage value of the building. This sustainable conservation reaches its peak in adaptive-reuse projects of heritage buildings as reusing the building guarantees its ongoing maintenance and promotes its social, cultural and economic values to society, while giving it the ability to withstand modern users’ comfort and energy efficiency standards. This research presents a case study of the adaptive-reuse project of Villa Antoniadis in Alexandria; a heritage building built in the mid-nineteenth century and in the process of a major adaptive-reuse project. The history and significance of the building will be studied as well as the conservation values of the current project, then some proposals for interventions that could achieve more energy efficiency for the project while conserving the building are discussed. The research included a simulation of the building, using building energy modelling software for the current adaptive-reuse project as a base case, and the hypothetical application of different proposed sustainable interventions such as thermal insulation, double glazing, shading, lighting control, natural ventilation, and photovoltaic energy generation, where the energy savings potentials for each proposed intervention were studied. The simulation proved a possible reduction of 36.5% in the cooling, heating and lighting energy consumption as well as generated 74.7% of the energy required for cooling, heating and lighting from renewable energy sources.

Riqualificazione energetica e bioedilizia in Italia: lo stato dell'arte

2012 ◽  
pp. 74-88
Author(s):  
Livio de Santoli
Keyword(s):  
Energy Efficiency ◽  
Renewable Energy ◽  
Energy Consumption ◽  
Fossil Fuels ◽  
Building Materials ◽  
Heat Pumps ◽  
Building Envelope ◽  
International Standards ◽  
Solar Panels ◽  
Water Heaters

Building sustainability, in term of energy efficiency, low-impact building materials, renewable energy, has experienced significant growth during the past years. In response to the growing dependence on fossil fuels and importations, due in part to the increase of energy consumption in the residential sector (in 2009 46,9 Mtep, 3% more than 2008) and the recent European directives (i.e. EU 2009/28/CE) requiring CO2 emissions cut of up to 13% in 2020, there is interest in promoting energy efficiency and renewable energy technologies, which are suitable for residential applications. In this paper we present an overview on actions related to minimization of buildings energy consumption in Italy. Prevalent line of action is to improve the energy performances of building envelope (Dlgs 192/05) using insulated frames, walls and roofs and replacing heat generators with condensing boilers. In addition to national directives, ONRE Report 2011 (National Observatory on building regulations) shows that 831 Municipalities (10% more than 2010) establish mandatory targets for insulation, photovoltaic solar panels, solar water heaters, heat pumps use, correct buildings orientation, saving of water resource and local materials use. In addiction an efficient energy rating of the buildings could promote the spread of energy efficiency measurement and consequently facilitate their implementation. The new energy rating system should meet international standards, regarding environment and energy aspects, and respect territorial needs.

Online Traveler Reviews as Social Influence: Price Is No Longer King

2015 ◽  
Vol 42 (3) ◽  
pp. 445-475 ◽  
Author(s):  
Laura A. Book ◽  
Sarah Tanford ◽  
Rhonda Montgomery ◽  
Curtis Love
Keyword(s):  
Experimental Design ◽  
Social Influence ◽  
Cognitive Dissonance ◽  
Major Influence ◽  
Consumer Decisions ◽  
Spring Break ◽  
Student Subjects ◽  
Price Differences ◽  
Insight Into ◽  
Dissonance Reduction

Price is a major influence on travel purchases; however, traveler reviews have also become a prevalent source of influence. Theories of social influence and cognitive dissonance provide insight into consumer decisions. This research investigated the effect of social influence in the form of traveler reviews and price on consumer decisions and postdecision dissonance. Student subjects evaluated two resorts for a Spring Break vacation in Cancun using a 2 (valence: positive or negative) × 2 (unanimity: unanimous or nonunanimous) × 3 (price: same, slightly lower, much lower) experimental design. The results reveal that social influence had a strong effect on both resort evaluations and postdecision dissonance. Nonunanimous reviews reduced the prevailing valence of reviews, but increased dissonance. The lack of results for price suggests that price may not be the predominant influence on decisions, as previously thought. This research provides new insight into the effect of traveler reviews on decisions by evaluating the unanimity of social influence, the effect of price differences, and the extent to which consumers engage in postdecision dissonance reduction.

scholarly journals BIM and BEM Methodologies Integration in Energy-Efficient Buildings Using Experimental Design

Buildings ◽  
2021 ◽  
Vol 11 (10) ◽  
pp. 491
Author(s):  
Jorge González ◽  
Carlos Alberto Pereira Soares ◽  
Mohammad Najjar ◽  
Assed N. Haddad
Keyword(s):  
Experimental Design ◽  
Energy Efficient ◽  
Thermal Characteristics ◽  
Energy Performance ◽  
Building Envelope ◽  
Climatic Zones ◽  
Energy Efficient Buildings ◽  
Energy Modelling ◽  
Building Information ◽  
Energetic Performance

Linking Building Information Modelling and Building Energy Modelling methodologies appear as a tool for the energy performance analysis of a dwelling, being able to build the physical model via Autodesk Revit and simulating the energy modeling with its complement Autodesk Insight. A residential two-story house was evaluated in five different locations within distinct climatic zones to reduce its electricity demand. Experimental Design is used as a methodological tool to define the possible arrangement of results emitted via Autodesk Insight that exhibits the minor electric demand, considering three variables: Lighting efficiency, Plug-Load Efficiency, and HVAC systems. The analysis concluded that while the higher the efficiency of lighting and applications, the lower the electric demand. In addition, the type of climate and thermal characteristics of the materials that conform to the building envelope have significant effects on the energetic performance. The adjustment of different energetic measures and its comparison with other climatic zones enable decision-makers to choose the best combination of variables for developing strategies to lower the electric demand towards energy-efficient buildings.

scholarly journals Application of Urban Scale Energy Modelling and Multi-Objective Optimization Techniques for Building Energy Renovation at District Scale

2021 ◽  
Vol 13 (20) ◽  
pp. 11554
Author(s):  
Fahad Haneef ◽  
Giovanni Pernigotto ◽  
Andrea Gasparella ◽  
Jérôme Henri Kämpf
Keyword(s):  
Energy Efficiency ◽  
Building Energy ◽  
Energy Performance ◽  
Building Envelope ◽  
Optimization Techniques ◽  
Multi Objective Optimization ◽  
Building Stock ◽  
Energy Efficiency Measures ◽  
Multi Objective ◽  
Efficiency Measures

Nearly-zero energy buildings are now a standard for new constructions. However, the real challenge for a decarbonized society relies in the renovation of the existing building stock, selecting energy efficiency measures considering not only the energy performance but also the economic and sustainability ones. Even if the literature is full of examples coupling building energy simulation with multi-objective optimization for the identification of the best measures, the adoption of such approaches is still limited for district and urban scale simulation, often because of lack of complete data inputs and high computational requirements. In this research, a new methodology is proposed, combining the detailed geometric characterization of urban simulation tools with the simplification provided by “building archetype” modeling, in order to ensure the development of robust models for the multi-objective optimization of retrofit interventions at district scale. Using CitySim as an urban scale energy modeling tool, a residential district built in the 1990s in Bolzano, Italy, was studied. Different sets of renovation measures for the building envelope and three objectives —i.e., energy, economic and sustainability performances, were compared. Despite energy savings from 29 to 46%, energy efficiency measures applied just to the building envelope were found insufficient to meet the carbon neutrality goals without interventions to the system, in particular considering mechanical ventilation with heat recovery. Furthermore, public subsidization has been revealed to be necessary, since none of the proposed measures is able to pay back the initial investment for this case study.

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