Comfort-related feedforward information: occupants’ choice of cooling strategy and perceived comfort

Meinke, Anita; Hawighorst, Maren; Wagner, Andreas; Trojan, Jörg; Schweiker, Marcel

doi:10.1080/09613218.2017.1233774

Cited by 17 publications

(8 citation statements)

References 21 publications

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“…A number of other factors besides air temperature have been identified to influence window operation 54 . In addition, it has been demonstrated that people perceive indoor temperatures and act to change their thermal comfort differently 9,55 . Two other implicit assumptions that fundamentally relate to the binary nature of the assessment and are not addressed in the guidance document are that: (a) the uncertainty of BPS tools and (b) the choice of BPS tool will not significantly alter the prediction.…”

Section: Tm59 Methodologymentioning

confidence: 99%

Can the choice of building performance simulation tool significantly alter the level of predicted indoor overheating risk in London flats?

Petrou

Mavrogianni²,

Symonds³

et al. 2018

Building Services Engineering Research and Technology

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The accurate prediction of building indoor overheating risk is critical in order to mitigate its possible consequences on occupant health and wellbeing. The Chartered Institution of Building Services Engineers issued Technical Memorandum 59 (TM59) with the aim of achieving consistency in the modelling processes followed for the prediction of overheating risk in new dwellings. However, as each tool's prediction may depend on its inherent assumptions, an inter-model comparison procedure was used to assess whether the choice of building performance simulation tool influences the overheating assessment. The predictions of two popular tools, IES VE and EnergyPlus, were compared for nine variations of a naturally ventilated, purpose built, London flat archetype, modelled under the default algorithm options. EnergyPlus predicted a high overheating risk according to TM59 criteria in seven out of the nine model variants, contrary to the low risk of all the IES VE variants. Analysis of heat transfer processes revealed that wind-driven ventilation and surface convection algorithms were the main sources of the observed discrepancies. The choice of simulation tool could thus influence the overheating risk assessment in flats while the observed discrepancies in the simulation of air and heat transfer could have implications on other modelling applications.Practical applications Technical Memorandum 59 issued by the Chartered Institution of Building Services Engineers may be widely adopted within the industry to assist the prediction of overheating risk in new dwellings. This work suggests that the choice of building performance simulation tool can greatly influence the predicted overheating risk. Furthermore, the differences identified in the modelling of heat transfer processes could also impact other modelling applications. Following these results, the need for detailed empirical validation studies of naturally ventilated homes has been highlighted.

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Section: Tm59 Methodologymentioning

confidence: 99%

Can the choice of building performance simulation tool significantly alter the level of predicted indoor overheating risk in London flats?

Petrou

Mavrogianni²,

Symonds³

et al. 2018

Building Services Engineering Research and Technology

View full text Add to dashboard Cite

show abstract

“…Meinke et al 41 investigated occupants' cooling preferences; fewer participants kept air-conditioning as their first choice once informed about the associated energy use. This finding implies that some individuals may not be aware of the causes of climate change or, more precisely, how their use of mechanical cooling may contribute to global warming.…”

Section: Passive Cooling Need and Occupant Preferencementioning

confidence: 99%

Domestic overheating risks and mitigation strategies: The state-of-the-art and directions for future research

Alrasheed

Mourshed

2023

Indoor and Built Environment

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Anthropogenic climate change will likely put dwellings at risk of overheating and potentially increase cooling demand in the decades ahead, leading to higher greenhouse gas (GHG) emissions due to the energy consumed for mechanical cooling. Contemporary constructions with highly insulated fabric have been found to suffer from periodic overheating in today’s climate, the occurrence of which is projected to increase in frequency as the temperature rises. This critical review investigates the factors affecting overheating risks in dwellings and passive cooling strategies to mitigate overheating impacts on occupant thermal comfort and wellbeing. The cooling efficiency of passive strategies is affected by the design, construction and operation of buildings, as well as climate and occupancy. A framework has been developed to illustrate the effect of overheating factors on the cooling efficacy of passive strategies. Findings suggest that a combination of passive strategies is required to minimise overheating risks by the 2080s. External solar shading is the most effective method for retrofitting insulated dwellings. On the other hand, cool paint is ideal for uninsulated dwellings. In addition, thermal mass and natural ventilation require occupant interaction for optimal air circulation and cooling performance.

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“…Other research works with occupant behaviour and satisfaction had different objectives. Meinke et al . (2017), for example, studied the effect of feedforward information on building occupants.…”

Section: Energy Performances Of Historical Buildingsmentioning

confidence: 99%

Historical buildings’ energy conservation potentialities

Spigliantini

Fabi

Schweiker

et al. 2019

IJBPA

Self Cite

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Purpose Today, about 30 per cent of European existing buildings can be entitled as “historical buildings”. Nowadays, their energy retrofit is important to reach the ambitious European CO2 emissions’ reduction objectives. The purpose of this paper is to outline a methodology to investigate the potential energy savings and the enhancement of historical buildings’ liveability by acting only on their operation, so that the building fabric could be maintained as much as possible as the original evidence. Design/methodology/approach The paper describes the framework’s theoretical phases and their application in two real case studies. The methodology was conceived with a pre-test and post-test design approach. Findings The research demonstrated that the elaborated methodology is flexible and allows the adoption of different energy retrofit strategies for the different cases. Research limitations/implications Limitations arise out of the circumstance that the methodology is based on occupants and technicians willingness to engage in the strategies, so it is not possible to quantify its efficacy ex ante. Practical implications Practical implications can be found in the way of addressing energy retrofit strategies through a user-centric approach with minimum impact on the building itself. Social implications At the same time, the methodology has a strong social aspect with its potential to change people’s attitudes towards energy usage and behaviour. Originality/value This study not only represents the first attempt of applying a systematic energy retrofit strategy based on occupants and technicians behavioural change in historic buildings, but also is one of the first studies dedicated to occupants’ comfort and behaviour assessment in this context.

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Comfort-related feedforward information: occupants’ choice of cooling strategy and perceived comfort

Cited by 17 publications

References 21 publications

Can the choice of building performance simulation tool significantly alter the level of predicted indoor overheating risk in London flats?

Can the choice of building performance simulation tool significantly alter the level of predicted indoor overheating risk in London flats?

Domestic overheating risks and mitigation strategies: The state-of-the-art and directions for future research

Historical buildings’ energy conservation potentialities

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