Summer overheating potential in a low-energy steel frame house in future climate scenarios

Rodrigues, Lucélia; Gillott, Mark; Tetlow, David

doi:10.1016/j.scs.2012.03.004

Cited by 46 publications

(26 citation statements)

References 7 publications

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“…In an effort to reduce energy demand in buildings through energy efficient strategies, architects must be careful to ensure potential savings are not offset through increased cooling requirements as a result of overheating. Awareness of this problem in new build, low energy dwellings is increasing through the publication of recent reports [19,[49][50][51].…”

Section: Discussionmentioning

confidence: 99%

An Investigation of Indoor Air Quality in UK Passivhaus Dwellings

McGill

Sharpe

Oyedele

et al. 2017

Smart Energy Control Systems for Sustainable Buildings

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The adoption of the German Passivhaus Standard in the UK has grown rapidly in recent years. Stimulated by the shift towards energy efficient design and rising fuel costs, the concept is perceived as a potential means of meeting energy and carbon targets through an established, reliable methodology. However the performance of the Standard in terms of adequate indoor air quality and thermal comfort in a UK climate remains under-researched. This paper describes the use of the Passivhaus Standard in a UK context, and its potential implications on indoor environmental quality. A case study is presented, which included indoor air quality measurements, occupant diary, building survey and occupant interviews in a Passivhaus social housing project in Northern Ireland. The study found issues with indoor air quality, the use and maintenance of Mechanical Ventilation with Heat Recovery (MVHR) systems, lack of occupant knowledge and the perception of overheating in the case study dwellings. The findings provide a much needed insight into the indoor environmental quality in homes designed to the Passivhaus standard; which can be disseminated to aid the development of an effective sus-

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Section: Discussionmentioning

confidence: 99%

An Investigation of Indoor Air Quality in UK Passivhaus Dwellings

McGill

Sharpe

Oyedele

et al. 2017

Smart Energy Control Systems for Sustainable Buildings

View full text Add to dashboard Cite

show abstract

“…However, there is now increasing evidence that new and low energy dwellings may suffer significant problems in the future and indeed that many such dwellings may already experience high levels of overheating (Dengel & Swainson 2012, Mavrogianni, Taylor, Davies, Thoua & Kolm-Murray 2015, Peacock, Jenkins & Kane 2010, Rodrigues, Gillott & Teltow, 2013. It has been suggested that light weight, air tight dwellings with little access to cross ventilation (such as single aspect flats) may be at a particularly high level of risk of overheating (Dengel & Swainson 2012).…”

Section: Evidence Of Overheatingmentioning

confidence: 99%

“…Using probabilistic assessment, Jenkins et al (2014) found that by the 2030s up to 76% of flats and 29% of detached dwellings could be at risk of overheating. Furthermore, Rodrigues et al (2013) in a study considering the performance of a low-energy steel frame house design under current and future weather scenarios found that the building could be uncomfortably warm for 30% of the year.…”

Section: Evidence Of Overheatingmentioning

confidence: 99%

The impact of regulations on overheating risk in dwellings

Mulville

Stravoravdis

2016

Building Research & Information

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“…These uncertainties in building operation, climate change and policies may influence the building performance, which could cause variations in energy use, operational costs and comfort. The potential impact of these uncertainties is very high in low-energy buildings [4,5] resulting in possible deviation during operation compared to the predicted energy performance in the design phase [6], and could also lead to thermal comfort issues such as overheating [7][8][9][10][11]. These uncertainties are rarely considered in the design of low-energy buildings and hence, the decision making process may result in designs that are sensitive to uncertainties [12,13] and might not perform as intended.…”

Section: Introductionmentioning

confidence: 99%

A methodology for performance robustness assessment of low-energy buildings using scenario analysis

2018

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• A novel methodology for performance robustness assessment is proposed.• Multi-criteria assessment is carried out using predicted performance and robustness.• The minimax regret method is used to identify robust designs.• A multi-criteria decision making strategy is implemented to select robust designs. A R T I C L E I N F O Keywords:Robust design Low-energy buildings Future scenarios Occupant behavior Performance assessment Robustness assessment Design decision making A B S T R A C T Uncertainties in building operation and external factors such as occupant behavior, climate change, policy changes etc. impact building performance, resulting in possible performance deviation during operation compared to the predicted performance in the design phase. Multiple low-energy building configurations can lead to similar optimal performance under deterministic conditions, but can have different magnitudes of performance deviation under these uncertainties. Low-energy buildings must be robust so that these uncertainties do not result in significant variations in energy use, cost and comfort. However, these uncertainties are rarely considered in the design of low-energy buildings and hence, the decision making process may result in designs that are sensitive to uncertainties and might not perform as intended. Therefore, to reduce this sensitivity, performance robustness assessment of low-energy buildings considering uncertainties should be assessed in the design phase. The probability of occurrences of these uncertainties are usually unknown and hence, scenarios are essential to assess the performance robustness of buildings. Therefore, a non-probabilistic robustness assessment methodology, based on scenario analysis, is developed to identify robust designs. Maximum performance regret calculated using the minimax regret method is used as the measure of performance robustness. In this approach, the preferred robust design is based on optimal performance and performance robustness.The proposed methodology is demonstrated using a case study with a policymaker as the decision maker. The proposed methodology can be used by designers and consultants to aid decision makers in the design phase to identify robust low-energy building designs that deliver preferred performance in the future operation.

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Summer overheating potential in a low-energy steel frame house in future climate scenarios

Cited by 46 publications

References 7 publications

An Investigation of Indoor Air Quality in UK Passivhaus Dwellings

An Investigation of Indoor Air Quality in UK Passivhaus Dwellings

The impact of regulations on overheating risk in dwellings

A methodology for performance robustness assessment of low-energy buildings using scenario analysis

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