Review on Time-Integrated Overheating Evaluation Methods for Residential Buildings in Temperate Climates of Europe

Rahif, Ramin; Amaripadath, Deepak; Attia, Shady

doi:10.1016/j.enbuild.2021.111463

Cited by 48 publications

(32 citation statements)

References 63 publications

(86 reference statements)

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“…However, the thermal performance and overheating risk of buildings in relation to climate change are not appropriately addressed. Rahif and Attia (2021) investigated the overheating assessment methodologies to distinguish between short-and long-term methods. They found out that the only study that provides a climate change sensitive approach is the study of (Hamdy et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

Climate change sensitive overheating assessment in dwellings: a case study in Belgium

Rahif

Fani²,

Kosiński

et al. 2021

Building Simulation Conference Proceedings

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Due to the current rate of global warming, overheating in buildings is expected to be more frequent and intense in future climates. High indoor temperature affects occupant productivity, comfort, and health. Thus, it is necessary to predict the thermal performance of buildings concerning climate change. This paper applies a climate change sensitive overheating assessment method to a lightweight timber house in Eupen, Belgium. Three metrics are used, namely Indoor Overheating Degree (𝐼𝑂𝐷), Ambient Warmness Degree (𝐴𝑊𝐷), and Building Climate Vulnerability Factor (𝐵𝐶𝑉𝐹). The overheating risk is assessed under four climate scenarios representing historical and future scenarios using dynamic simulation tool EnergyPlus v9.0. This method accounts for overheating severity and frequency, considering zonal occupancy profiles and thermal comfort models. The results indicate BCVF<1 for the Passive House case study showing its high potential in suppressing the outdoor thermal stress in the long-term. Finally, the increase in ventilation rate proves to be an adequate measure by decreasing the zonal peak temperatures up to 10℃ and indoor overheating risk by ~60%. Key Innovations• Warm discomfort during the heating period is contained within the overheating analysis • Lower base temperature for calculation of AWD is considered • Climate change-sensitive overheating assessment is applied on a high-performance building in the Belgian context Practical ImplicationsThis paper provides a basis for the field experts in climateresilient building design. It makes them aware of expected overheating risks in future climates and consider adaptation strategies in early-design stages.

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Section: Introductionmentioning

confidence: 99%

Climate change sensitive overheating assessment in dwellings: a case study in Belgium

Rahif

Fani²,

Kosiński

et al. 2021

Building Simulation Conference Proceedings

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“…Those indicators were extensively reviewed by Refs. [49,50]. Following the recommendations of [49], a climate change-sensitive overheating calculation method developed by Ref.…”

Section: Step 4: Specify Performance Indicators and Comfort Models 2141 Performance Indicatorsmentioning

confidence: 99%

“…[49,50]. Following the recommendations of [49], a climate change-sensitive overheating calculation method developed by Ref. [14] is selected that fits the scope of the current paper.…”

Section: Step 4: Specify Performance Indicators and Comfort Models 2141 Performance Indicatorsmentioning

confidence: 99%

“…[14] is selected that fits the scope of the current paper. Hamdy et al [49] introduced a methodology based on two principal indicators, namely, Indoor Overheating Degree (IOD) (for the indoor environment) and Ambient Warmness Degree (AWD) (for the outdoor environment).…”

Section: Step 4: Specify Performance Indicators and Comfort Models 2141 Performance Indicatorsmentioning

confidence: 99%

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Simulation-based framework to evaluate resistivity of cooling strategies in buildings against overheating impact of climate change

Rahif

Hamdy

Homaei

et al. 2022

Building and Environment

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Over the last decades overheating in buildings has become a major concern. The situation is expected to worsen due to the current rate of climate change. Many efforts have been made to evaluate the future thermal performance of buildings and cooling technologies. In this paper, the term "climate change overheating resistivity" of cooling strategies is defined, and the calculation method is provided. A comprehensive simulation-based framework is then introduced, enabling the evaluation of a wide range of active and passive cooling strategies. The framework is based on the Indoor Overheating Degree (IOD), Ambient Warmness Degree (AWD), and Climate Change Overheating Resistivity (CCOR) as principal indicators allowing a multi-zonal approach in the quantification of indoor overheating risk and resistivity to climate change.To test the proposed framework, two air-based cooling strategies including a Variable Refrigerant Flow (VRF) unit coupled with a Dedicated Outdoor Air System (DOAS) (C01) and a Variable Air Volume (VAV) system (C02) are compared in six different locations/climates. The case study is a shoe box model representing a double-zone office building. In general, the C01 shows higher CCOR values between 2.04 and 19.16 than the C02 in different locations. Therefore, the C01 shows superior resistivity to the overheating impact of climate change compared to C02. The maximum CCOR value of 37.46 is resulted for the C01 in Brussels, representing the most resistant case, whereas the minimum CCOR value of 9.24 is achieved for the C02 in Toronto, representing the least resistant case.

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“…CIBSE Guide A recommends 23-25 • C for air-conditioned living rooms during the summer and defines the "benchmark peak temperature" for free-running buildings, which is 3 • C higher than the summer comfort temperature. Accordingly, the prescribed benchmark peak temperature is 28 • C for the living room [41]. The advantage of this approach is its simplicity, but the downside is that it assumes the particular combinations of the occupant metabolic rate and clothing insulation levels.…”

Section: Hvac Systemmentioning

confidence: 99%

Overheating Risks and Adaptation Strategies of Energy Retrofitted Historic Buildings under the Impact of Climate Change: Case Studies in Alpine Region

et al. 2022

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Energy retrofits can enhance the liveability and efficiency of historic buildings while preserving their historic and aesthetic values. However, measures like improved insulation and airtightness may increase their vulnerability to overheating and climate change may further worsen their performance in the future. This paper investigates indoor overheating risks brought by climate change in retrofitted historic buildings and proposes effective adaptation strategies. Firstly, local weather conditions are analysed to identify homogenous climatic zones. For each climatic zone, “a business-as-usual” emissions scenario is adopted, and most representative regional climate models are selected to obtain hourly output of future climate projection. A comparative study is adopted where typical alpine residential buildings, “Portici house”, are simulated with regard to future energy use and indoor thermal state using the dynamic model in EnergyPlus. Energy use and indoor thermal conditions are compared before and after energy retrofit, as well as under present and future climate conditions. The results demonstrate that retrofit interventions could significantly improve energy efficiency of historic buildings in both present and future scenarios. A change in climate together with retrofit interventions will, however, result in higher risk of indoor overheating in South Tyrol. Potential negative side effects of energy retrofit could be controlled by adopting adequate shading and ventilation approaches that minimise, or eliminate, the risk of overheating during high temperature periods while optimising historic buildings’ energy performance.

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Review on Time-Integrated Overheating Evaluation Methods for Residential Buildings in Temperate Climates of Europe

Cited by 48 publications

References 63 publications

Climate change sensitive overheating assessment in dwellings: a case study in Belgium

Climate change sensitive overheating assessment in dwellings: a case study in Belgium

Simulation-based framework to evaluate resistivity of cooling strategies in buildings against overheating impact of climate change

Overheating Risks and Adaptation Strategies of Energy Retrofitted Historic Buildings under the Impact of Climate Change: Case Studies in Alpine Region

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