Improvement of Natural Ventilation in Building Using Multi Solar Chimneys at Different Directions

Hassanein, Soubhi A.; Abdel-Fadeel, Waleed A.

doi:10.21608/jesaun.2012.114607

Cited by 6 publications

(5 citation statements)

References 12 publications

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“…Air temperature changes directly with the sun oriented irradiance. Hassanein et al [9] demonstrates bye tentatively a few smokestack builds wind current rate to 13 to 33%. Bansal et al [10] stablish scientific condition and found that 2.25m2 range of sun powered gatherer could produce wind stream rate between 140 to 330m3/hr at hot and dry condition.…”

Section: Literature Reviewmentioning

confidence: 97%

“…Different works center in the configuration of the sun based stack as the stature, width or point of tilt, utilizing as a part of the greater part of the cases CFD devices to complete the reproductions or examinations and advancements physical and numerical models for a solar chimney [1,[4][5][6][7]. Likewise different works focuses in the investigation of a working with a sunlight based stack and other ventilation frameworks as a cooling hole [8], Trombe dividers [9] or heat recuperation [4]. All these studies demonstrates the suitability of the this framework and these days one can see that new structures begin to introduce solar chimneys, similar to the Tånga School in Falkenberg Sweden [10].…”

Section: Introductionmentioning

confidence: 99%

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A Review on Different Applications of Solar Chimney

Gwatiya¹

2016

IJOSCIENCE

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Most recent couple of decades the vitality interest is ascending for space warming and cooling, in private and business building distinctive sorts of hardware, techniques, trial setup are utilized to lessen vitality request and for diminishing utilization of vitality numerous sorts of renewable wellsprings of vitality are likewise used to decrease vitality request and spare environment by various sorts of poison. Most normal renewable wellsprings of vitality is sunlight based vitality which is utilized as a part of this exploratory as Solar Chimney. In this proposal, we utilize solar chimney for Natural Room Ventilation framework amid summer season. Solar Chimney is utilized for its incorporated Design, Low cost of upkeep, Easy to utilize. This is recipient for the carbon dioxide outflow necessity of vitality and interest of vitality, starting the expense of operation. In this paper, we discuss about different solar chimney application in previous years.

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Section: Literature Reviewmentioning

confidence: 97%

Section: Introductionmentioning

confidence: 99%

A Review on Different Applications of Solar Chimney

Gwatiya¹

2016

IJOSCIENCE

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“…The study involved the effects of inlet size, wall height and properties, inclination angle, glazing type, solar intensity, and wind. Hassanein and Abdel-Fadeel [6] studied natural ventilation experimentally using multiple solar chimneys in different directions. The study was conducted to investigate the effects of the number of solar chimneys, the height of chimneys, the width of the air gap, and the direction of chimneys on the natural ventilation in space.…”

Section: Introductionmentioning

confidence: 99%

Investigation of natural ventilation using a solar chimney in various solar cases

Abdel-Baky,

Eaid,

El-Khaldy

et al. 2024

ijirss

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The high cost of conventional energy production, its uses, and its negative environmental impact led scientists to look for many ways to solve this problem. The main issues are environmental pollution, the high cost of air treatment, and the high cost of energy production. An essential solution is using renewable energy instead of traditional energy (petroleum, coal, natural gas, and electric power). As it is a permanent energy source, it causes no air pollution and is cheaper. In this work, an experimental study was conducted on using solar energy as an energy source in the natural ventilation of buildings and the factors affecting this ventilation. A solar chimney has been installed with and without storage materials to store energy for natural identity during sunrise and after sunset. In this work, the difference in air density with different temperatures is the main factor for energy production, which leads to a change in the airspeed (natural ventilation). The study indicates that indoor air velocity can remain higher than ambient air velocity during the day and at night for several hours. This reduces demand and dependence on conventional energy usage, which leads to cost reductions and a reduction in air and environmental pollution.

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“…Tan and Wong [15] determined that a solar chimney was able to naturally improve interior air speed and expedite changes in air temperature when tested in a single-storey classroom in Singapore. Hassanein and Abdel-Fadeel [17] found that the use of multiple solar chimneys, oriented in different directions, further improves air-flow rates and reduces indoor temperatures, although their effectiveness is greatest when directly facing the sun. A quicker passive reduction in indoor temperature reduces the need and the time required for cooling demand.…”

Section: Introductionmentioning

confidence: 99%

Solar Chimneys as an Effective Ventilation Strategy in Multi-Storey Public Housing in the Post-COVID-19 Era

Leng

Ali

et al. 2022

Buildings

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This paper studies the effectiveness of a solar chimney for improving ventilation and air-exchange rates in multi-storey public housing in tropical climates for the potential mitigation of airborne disease transmission. Virtual models of a typical apartment room with natural cross-ventilation, replicated across four levels to mimic a multi-storey block, were set up with six internal wind velocity sensor points per floor. The simulation software Energy2D was then used to evaluate the performance of the models, first testing the presence of a solar chimney, and then additionally the degree to which the solar chimney model was affected by a complementary ceiling fan. Wind velocity was also measured, as this is a variable that affects ACH rates. Using a non-parametric Wilcoxon signed-rank test, the introduction of a solar chimney was found to have a significant impact on air-flow rates (a variable that positively affects air-exchange rates), resulting in a p-value of 0.000 and Z-value of −3.920. Regression analysis determined that the solar chimney’s effect was enhanced when complemented by a ceiling fan (R-squared value of 0.4687). Consequently, we propose several design strategies that may enable the adoption of the solar chimney concept to improve natural ventilation in residential units.

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Improvement of Natural Ventilation in Building Using Multi Solar Chimneys at Different Directions

Cited by 6 publications

References 12 publications

A Review on Different Applications of Solar Chimney

A Review on Different Applications of Solar Chimney

Investigation of natural ventilation using a solar chimney in various solar cases

Solar Chimneys as an Effective Ventilation Strategy in Multi-Storey Public Housing in the Post-COVID-19 Era

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