Probabilistic climate projections with dynamic building simulation: Predicting overheating in dwellings

Jenkins, David; Patidar, Sandhya; Banfill, Phillip Frank Gower; Gibson, Gavin J.

doi:10.1016/j.enbuild.2011.03.016

Cited by 62 publications

(47 citation statements)

References 8 publications

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“…In each case the software used enabled the window opening position to be triggered by internal temperatures of 23.9°C. This aligned to the work of Jenkins, Patidar, Banfill and Gibson (2011) who suggested that 23.9°C was the temperature at which occupants are likely to begin to adapt.…”

Section: Building Performance Simulationmentioning

confidence: 54%

The impact of regulations on overheating risk in dwellings

Mulville

Stravoravdis

2016

Building Research & Information

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Section: Building Performance Simulationmentioning

confidence: 54%

The impact of regulations on overheating risk in dwellings

Mulville

Stravoravdis

2016

Building Research & Information

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“…8), the warmer homes were in the London, the South East, the East, the East Midlands, and the West Midlands, whereas the cooler homes were to be in the North East, North West and Yorkshire. 9 Chi-squared tests (Table 3), indicated that there were significantly fewer bedrooms in the North West with more than 1% of occupied hours over 26 C than bedrooms in other regions (4% cf. 21% for all the dwellings, p < 0.05) and there were significantly more living rooms in the East of England with more than 1% of occupied hours over 28 C than living rooms in other regions (13% cf.…”

Section: Assessment Using Static Criteriamentioning

confidence: 99%

National survey of summertime temperatures and overheating risk in English homes

Beizaee

Lomas

Firth

2013

Building and Environment

150

102

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a b s t r a c tThis paper presents one of the first national scale studies of summertime temperatures in English dwellings. Living room and bedroom temperatures were recorded in 207 homes across the England during the cool summer of 2007. Data was also collected by face-to-face household interviews. Fourteen homes (7%) were observed to be heated for part or all of the analysis period (July to August). Based on the BSEN15251 adaptive thermal comfort model, the 193 free-running dwellings would, in general, to be considered as uncomfortably cool. Over 72% of living rooms and bedrooms had more than 5% of hours below the BSEN15251 Cat II lower threshold, with over 50% having more than 5% of hours below the Cat III threshold. Detached homes and those built before 1919 were significantly cooler (p < 0.05) than those of other type and age. Static criteria revealed that, despite the cool summer, 21% of the bedrooms had more than 5% of night time hours over 26 C; which is a recommended upper limit for bedrooms. The bedrooms of modern homes, i.e. those built after 1990 or with cavity walls, were significantly warmer (p < 0.05). The bedrooms in homes built prior to 1919 were significantly cooler (p < 0.05). The living rooms of flats were significantly warmer than the living rooms in the other dwelling types (p < 0.05). The incidence of warm bedrooms in modern homes, even during a cool summer, is of concern, especially as there is a strong trend towards even better insulation standards in new homes and the energy-efficient retrofitting of existing homes.

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“…Jenkins et al [15], on the same track, developed a surrogate model by means of a novel integration of dynamic energy investigations and probabilistic climate forecasts. The regression model is very reliable and is able to predict the hourly internal temperatures with an error of about 5%, compared to the outcomes of a transient commercial simulation software (ESP-r), for different investigated climates in the United Kingdom.…”

Section: Indoor Min Rmmentioning

confidence: 99%

Design of the Building Envelope: A Novel Multi-Objective Approach for the Optimization of Energy Performance and Thermal Comfort

et al. 2015

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According to the increasing worldwide attention to energy and the environmental performance of the building sector, building energy demand should be minimized by considering all energy uses. In this regard, the development of building components characterized by proper values of thermal transmittance, thermal capacity, and radiative properties is a key strategy to reduce the annual energy need for the microclimatic control. However, the design of the thermal characteristics of the building envelope is an arduous task, especially in temperate climates where the energy demands for space heating and cooling are balanced. This study presents a novel methodology for optimizing the thermo-physical properties of the building envelope and its coatings, in terms of thermal resistance, capacity, and radiative characteristics of exposed surfaces. A multi-objective approach is adopted in order to optimize energy performance and thermal comfort. The optimization problem is solved by means of a Genetic Algorithm implemented in MATLAB ® , which is coupled with EnergyPlus for performing dynamic energy simulations. For demonstration, the methodology is applied to a residential building for two different Mediterranean climates: Naples and Istanbul. The results show that for Naples, because of the higher incidence of cooling demand, cool external coatings imply significant energy savings, whereas the OPEN ACCESS Sustainability 2015, 7 10810 insulation of walls should be high but not excessive (no more than 13-14 cm). The importance of high-reflective coating is clear also in colder Mediterranean climates, like Istanbul, although the optimal thicknesses of thermal insulation are higher (around 16-18 cm). In both climates, the thermal envelope should have a significant mass, obtainable by adopting dense and/or thick masonry layers. Globally, a careful design of the thermal envelope is always necessary in order to achieve high-efficiency buildings.

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Probabilistic climate projections with dynamic building simulation: Predicting overheating in dwellings

Cited by 62 publications

References 8 publications

The impact of regulations on overheating risk in dwellings

The impact of regulations on overheating risk in dwellings

National survey of summertime temperatures and overheating risk in English homes

Design of the Building Envelope: A Novel Multi-Objective Approach for the Optimization of Energy Performance and Thermal Comfort

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