Envelope-related energy demand: A design indicator of energy performance for residential buildings in early design stages

Granadeiro, Vasco; Correia, João R.; Leal, Vítor; Duarte, José Pinto

doi:10.1016/j.enbuild.2013.02.018

Cited by 69 publications

(34 citation statements)

References 21 publications

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“…The analysis of these datasets allows us to better understand the building performance phenomena (Granadeiro et al, 2013;Rodrigues et al, 2015). The methodology used in the present work follows a procedure where in the first stage a reference room was created with a window placed in one of the widest exterior walls.…”

Section: Methodsmentioning

confidence: 99%

A thermal performance parametric study of window type, orientation, size and shadowing effect

Amaral

Rodrigues

Gaspar

et al. 2016

Sustainable Cities and Society

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Windows are one of the elements that greatly influence the performance of buildings, both in terms of thermal comfort and energy consumption for heating or cooling. It is therefore important to find an optimal design that balances their orientation, dimension and shadowing. This paper presents a methodology for the parametric study of a window optimal dimension, based on the thermal performance of a reference room located in the climate region of Coimbra, Portugal. First, the parameters of opening type, orientation, and size are evaluated. During a second stage, the impact of using overhangs is assessed, with one of the most common window types in Portugal. The thermal assessment is carried out by calculating the degree-hours of discomfort using dynamic simulation. Results show that for this location, triple glazing has better performance than single and double glazing, especially for the north orientation. The worst opening orientation is northeast and northwest, independent of the window type. It is observable that optimum window dimension does not imply equal space cooling and heating needs. Results also demonstrate that overhangs do not significantly improve the room's thermal performance but allow windows to have a wider interval of admissible sizes without compromising performance.

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Section: Methodsmentioning

confidence: 99%

A thermal performance parametric study of window type, orientation, size and shadowing effect

Amaral

Rodrigues

Gaspar

et al. 2016

Sustainable Cities and Society

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“…Shape factor is defined as the ratio of a building's total external surface area (S) to its inner volume (V) (Granadeiro et al, 2013). This was chosen to represent building class since it can be expressed by a numerical coefficient.…”

Section: Selection Of Response Variables and Covariatesmentioning

confidence: 99%

“…For instance, Salat (2009) summarised some factors that vary extensively depending on urban layout and highlighted that they all strongly influence the energy performance, such as building shape factor, density, porosity, light and natural ventilation, and a building's envelope performance. Thus, design strategies should be defined in the early stages of urbanisation processes so that stakeholders have tools to obtain information about the influence of design variations on the energy performance of building stocks (Granadeiro et al, 2013). In this sense, bottom-up approach facilitates the identification of sensitive variables on the overall energy performance, which allows, by changing such variables, to forecast the results of specific scenarios and to prepare substantive arguments for particular building designs and policies (Moffatt, 2001).…”

Section: Introductionmentioning

confidence: 99%

A methodology for predicting the energy performance and indoor thermal comfort of residential stocks on the neighbourhood and city scales. A case study in Spain

Braulio-Gonzalo

Bovea

Aguilar

et al. 2016

Journal of Cleaner Production

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“…Most, if not all, of these variables are defined in the early design stages (Granadeiro et al 2013). Although the project in the early design stage is very uncertain, all the decisions made have a great influence on the whole building's life cycle.…”

Section: Introductionmentioning

confidence: 99%

The Development of Conceptual Building Design Technology, Using Quality Function Deployment and Axiomatic Design

Lapinskienė

Martinaitis

2017

Science - Future of Lithuania

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abstract. Understanding issues early in the integrated design process is important, as this is when designers and engineers are able to have the largest impact on the final product. In this article the technology of conceptual architectural design for low energy buildings is proposed to address this issue. Here two methods -Quality function Deployment and Axiomatic design are used to develop the conception and to eliminate the main disadvantages of traditional building design. The integration of BIM, energy modelling (DesignBuilder) help to highlight the issue of energy efficiency at the early stage of building design, resulting in effective and more to posed requirements orientated design process.

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Envelope-related energy demand: A design indicator of energy performance for residential buildings in early design stages

Cited by 69 publications

References 21 publications

A thermal performance parametric study of window type, orientation, size and shadowing effect

A thermal performance parametric study of window type, orientation, size and shadowing effect

A methodology for predicting the energy performance and indoor thermal comfort of residential stocks on the neighbourhood and city scales. A case study in Spain

The Development of Conceptual Building Design Technology, Using Quality Function Deployment and Axiomatic Design

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