Simulation study of the eco green roof in order to reduce heat transfer in four different climatic zones

Khotbehsara, Elham Mehrinejad; Daemei, Abdollah Baghaei; Malekjahan, Farzaneh Asadi

doi:10.1016/j.rineng.2019.100010

Cited by 24 publications

(7 citation statements)

References 38 publications

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“…Slight rainfall with intense evaporation, a great distance from the sea, proximity to a dry and vast salt desert, low relative humidity and high temperature are among the factors that have turned Yazd into one of the driest regions of Iran. Moreover, the city experiences extreme temperature fluctuations (Khotbehsara et al, 2019). The climate in Yazd is classified as BWh by the K€ oppen-Geiger system, with a hot-arid climate and virtually no rainfall during the year (Kottek et al, 2006).…”

Section: Methodsmentioning

confidence: 99%

Recommended angle of a modular dynamic façade in hot-arid climate: daylighting and energy simulation

Golzan

Pouyanmehr

Naeini

2021

SASBE

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PurposeThe modular dynamic façade (MDF) concept could be an approach in a comfort-centric design through proper integration with energy-efficient buildings. This study focuses on obtaining and/or calculating an efficient angle of the MDF, which would lead to the optimum performance in daylight availability and energy consumption in a single south-faced official space located in the hot-arid climate of Yazd, Iran.Design/methodology/approachThe methodology consists of three fundamental parts: (1) based on previous related studies, a diamond-based dynamic skin façade was applied to a south-faced office building in a hot-arid climate; (2) the daylighting and energy performance of the model were simulated annually; and (3) the data obtained from the simulation were compared to reach the optimum angle of the MDF.FindingsThe results showed that when the angle of the MDF openings was set at 30°, it could decrease energy consumption by 41.32% annually, while daylight simulation pointed that the space experienced the minimum possible glare at this angle. Therefore, the angle of 30° was established as the optimum angle, which could be the basis for future investment in responsive building envelopes.Originality/valueThis angular study simultaneously assesses the daylight availability, visual comfort and energy consumption on a MDF in a hot-arid climate.

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Section: Methodsmentioning

confidence: 99%

Recommended angle of a modular dynamic façade in hot-arid climate: daylighting and energy simulation

Golzan

Pouyanmehr

Naeini

2021

SASBE

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“…Ouldboukhitine and Belarbi [10] studied the variation of the thermal parameters of the green roofs regarding hydraulic parameters based on plants evapotranspiration, proposing new solutions. Khotbehsara et al [11], analysed and compared different strategies for reducing heat loss through the year.…”

Section: Green Roofmentioning

confidence: 99%

Coconut fibre insulators: The hygrothermal behaviour in the case of green roofs

Fabbri

Tronchin

Barbieri

2021

Construction and Building Materials

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“…Ouldboukhitine and Belarbi [10] studied the variation of the thermal parameters of the green roofs with reference to hydraulic parameters based on plants evapotranspiration. Khotbehsara et al [11], analysed different strategies for reducing heat loss throughout the year. Almost all the papers here reported have a common methodology: most of the Authors considered the global thermal performances of the green roofs, without defining the thermal parameters for every single layer.…”

Section: A Green Roofmentioning

confidence: 99%

On the hygrothermal behavior of coconuts fiber insulators on green roofs

Fabbri

Tronchin

Barbieri

et al. 2020

2020 IEEE International Conference on Environment and Electrical Engineering and 2020 IEEE Industrial and Commercial Power Syst

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Coconut fibre insulators, represent an insulating material considered as "exotic", which clashes with the doubts of his thermo-hygrometric behavior, in particular, in the case of covering technology such as green roofs, a technological solution adopted in the case of sustainable buildings or nearly zero energy building. Green roofs represent a valid constructive solution with high thermal performances, adopted in existing and new buildings. The purpose of the research regards the study of the thermo-hygrometric behavior of the concrete and Cross-Laminated Timber (CLT) slabs, insulated with coconut fibre-boards (CF) such as alternative synthetic insulators, referred to 10 different green roofs scenarios. The results show that coconut fibre insulations are equally comparable to natural and synthetic materials, and their doubts for their applications, also in the green roofs, are related to technological solutions for the implementation in the market and their diffusion between the buildings materials.

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Simulation study of the eco green roof in order to reduce heat transfer in four different climatic zones

Cited by 24 publications

References 38 publications

Recommended angle of a modular dynamic façade in hot-arid climate: daylighting and energy simulation

Recommended angle of a modular dynamic façade in hot-arid climate: daylighting and energy simulation

Coconut fibre insulators: The hygrothermal behaviour in the case of green roofs

On the hygrothermal behavior of coconuts fiber insulators on green roofs

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