Study of wind effects on different buildings of pitched roofs

Guirguisa, N.M.; El-Aziz, A. A. Abd; Nassief, Mofreh Melad

doi:10.1016/j.desal.2007.04.028

Cited by 29 publications

(14 citation statements)

References 2 publications

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“…Penelitian tersebut diantaranya; penelitian yang dilakukan oleh Guirguis, El-Aziz, & Nassief (2007) yang menganalisis static force pada bentuk atap pelana dengan sudut-sudut berbeda, penelitian Driss, Driss, & Kammoun (2014) menganalisis berdasarkan bentuk atap sederhana, datar dan arched, serta Tominaga et al (2015) menganalisis aliran angin berdasarkan sudut dari perbandingan antara ketinggian dan lebar atap. Penelitian mengenai bentuk atap bertujuan untuk mendapatkan bentuk atap yang efektif terhadap daya tahan khususnya ketahanan terhadap angin, karena ketahanan terhadap angin akan mempengaruhi bentuk dan stuktur suatu bangunan sehingga mampu beradaptasi pada kondisi angin kencang.…”

Section: Pendahuluanunclassified

Analisis Aliran Angin Pada Atap Miring Melalui Uji Simulasi Flow Design

Amri

Syukur

2017

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AbstrakBidang penelitian tentang aliran angin pada bangunan sangat penting baik untuk perencanaan bangunan maupun pemukiman. Aliran angin yang mempengaruhi bangunan memiliki dampak pada ketahanan struktural terhadap angin. Penelitian dilakukan untuk mengetahui nilai drag coefficient atau gaya hambat terhadap angin yang dihasilkan pada atap miring dengan nilai sudut yang berbeda. ANALYSIS OF WIND FLOW PATTERN ON SLOPED ROOF USING FLOW DESIGN SIMULATION Abstract The field of research on wind flow on buildings is important for both building planning and planning a residential areas. Wind flow affecting the building has an impact on structural resistance to the wind. The study was conducted to find out the value of drag coefficient or drag force against the wind generated on the sloped roof with different angle values. The method applied by tested the roof model through CFD (Computational Fluid

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Section: Pendahuluanunclassified

Analisis Aliran Angin Pada Atap Miring Melalui Uji Simulasi Flow Design

Amri

Syukur

2017

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“…Recent study showed that roof geometry used in houses was significantly influenced wind velocity [6,7]. Comparative resulted from earlier research [8] showed that Semarang, Indonesia, has potential harvesting wind energy with roof mounted-micro wind turbine.…”

Section: Introductionmentioning

confidence: 95%

Measurement of the Influence of Roof Pitch to Increasing Wind Power Density

Sari¹

2015

Energy Procedia

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The wind flows on the rooftop house in Semarang, Indonesia past were examined in a Computational Fluid Dynamics (CFD) analysis and indicate best performance for wind energy power density. The rooftop pitches of house can have huge impact on increasing wind power density. This paper deals with the study to increase wind power density of micro-wind turbine located on the rooftop house by design the roof pitch. CFD was performed to evaluate the performance of wind flow around the roof pitch of housing at different angle (20 o , 30 o , 40 o and 50 o ) based on wind climate data analysis. The results showed that a pitched roof of 30 o has the best wind potential density than another for same base house model height. Nomenclature Uwind velocity (m . s -1 ) M mega (10 6 ) U ref wind velocity reference (m . s -1 ) atsl above the sea level Z the gradient height (m) yr years Z ref the gradient height reference (m) α power law exponent

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“…A recent study shows that buildings are able to provide the wind turbine with flow acceleration and higher placement to increase the power generation [20]. And it is generally believed that the shape of a building roof significantly affects the wind speed as the wind flows through a building [35]. A sloped roof has good performance in increasing wind speed, thus, a building with slope roof is more suitable for rooftop wind turbine to utilize wind energy in the areas with low wind speeds [36].…”

Section: Introductionmentioning

confidence: 99%

“…Energies 2018, 11, x FOR PEER REVIEW 3 of 33 building [35]. A sloped roof has good performance in increasing wind speed, thus, a building with slope roof is more suitable for rooftop wind turbine to utilize wind energy in the areas with low wind speeds [36].…”

Section: Introductionmentioning

confidence: 99%

“…Takao et al's study showed that the geometry of a guide vane has a significant effect on the performance of a straight bladed VAWT, the result showed that the peak power coefficient of the VAWT with the guide vane was obviously higher than the one without a guide vane [42]. Chong et al designed an effective power augmented guide vane (PAGV) around a vertical axis wind turbine which could significantly increase the power generation building [35]. A sloped roof has good performance in increasing wind speed, thus, a building with slope roof is more suitable for rooftop wind turbine to utilize wind energy in the areas with low wind speeds [36].…”

Section: Introductionmentioning

confidence: 99%

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Preliminary Performance Tests and Simulation of a V-Shape Roof Guide Vane Mounted on an Eco-Roof System

et al. 2018

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The technical and economic features of a patented V-shape roof guide vane (VRGV) with a solar and wind power generation system mounted on an eco-roof system are presented in this paper. Moreover, this innovative VRGV was investigated on for the purpose of improving the performance of a vertical axis wind turbine (VAWT), which was installed on an eco-roof system to solve the low-efficiency power generation problem of the wind turbines under the condition of a low wind speed. This paper proposes a preliminary study for the performance of the VAWT with the VRGV on a building. This research used a mock-up building with a double slope roof, where a five straight-bladed VAWT was mounted and tested under two conditions, with and without the VRGV. From the comparative experiments, the self-starting performance and rotational speed of the VAWT mounted above a double slope roof with the VRGV have been significantly improved compared to the VAWT without the VRGV. Further, the power coefficient (Cp) of the VAWT can be augmented to about 71.2% increment due to the VRGV design. In addition, numerical simulations by computational fluid dynamics (CFD) were proposed to verify the augmented effect of the Cp of the VAWT under the influence of the VRGV in the experiment. Besides, economic estimation of the VRGV was conducted.

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Study of wind effects on different buildings of pitched roofs

Cited by 29 publications

References 2 publications

Analisis Aliran Angin Pada Atap Miring Melalui Uji Simulasi Flow Design

Analisis Aliran Angin Pada Atap Miring Melalui Uji Simulasi Flow Design

Measurement of the Influence of Roof Pitch to Increasing Wind Power Density

Preliminary Performance Tests and Simulation of a V-Shape Roof Guide Vane Mounted on an Eco-Roof System

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