Development of an integrated passive cooling façade technology for office buildings in hot arid regions

Khadra, Alaa; Chalfoun, Nader

doi:10.2495/eq140501

Cited by 8 publications

(6 citation statements)

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“…Figure 2 -Installing shading panels on the building façade [37] In terms of exploitation the solar energy in most of the MENA region countries where the daily sunlight period especially in summer time is excessively high. Several published articles have recommended the usage of photovoltaic systems with both types ground mounted and building integrated in order to make the…”

Section: Adaptation and Mitigation Mechanisms For Buildings In Hot Ar...mentioning

confidence: 99%

Climate change mitigation mechanisms for buildings in hot Arid regions (Case study: Tall Buildings of MENA Region)

Magdy

ElBaz

2022

ERJ. Engineering Research Journal

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It is generally known that there has been a massive interest about the climate change and its significant impacts on health, weather, social and even economic activities. Nevertheless, the Hot arid regions are mostly impacted by these consequences. It is well known that Tall buildings are considerably designed for iconicity and symbolism in most cultures. There is a strong evidence that most of the MENA (Middle east and north Africa) region cities are extremely using the energy efficiency techniques in most of their buildings especially for the tall buildings to adapt the consequences of the climate change despite of the UNEP (united nations environment program) official report which documented that there are economic and financial barriers for especially the developing countries in applying most of the energy efficiency technological techniques in buildings due to its expense. A gap in knowledge was found regarding the minimal focus of the natural air circulation design based for Tall buildings in most of the middle east countries to create a better natural ventilation and air flow tightness. The paper presents a theoretical basis and cases study analytical strategies. Adaptation mechanisms for tall buildings in the hot arid regions are also discussed. Summarily, our conclusion provide evidence that the environmental design of buildings must be the preliminary first action for facing the negative impacts of climate change in hot arid region developing countries then any other technological aids will be highly recommended if applied. d region; Mitigation Hot ari ; Adaptation; Tall buildings; Climate change : Keywords Climate change mitigation mechanisms for buildings in " Nouran M. Ibrahim and Moutaz M. El Baz hot arid regions " (Case study: Tall buildings of MENA region)

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Section: Adaptation and Mitigation Mechanisms For Buildings In Hot Ar...mentioning

confidence: 99%

Climate change mitigation mechanisms for buildings in hot Arid regions (Case study: Tall Buildings of MENA Region)

Magdy

ElBaz

2022

ERJ. Engineering Research Journal

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“…Building floor plans that support natural ventilation. Chungloo (2007) [9] Ripple (2014) [10] Khadra (2014) [11] Mainini (2016) [12] Al Touma (2018) [13]…”

Section: Figure 12mentioning

confidence: 99%

“…Skin which integrates passive cooling strategies while optimizing the occupants' thermal and visual comfort (Khadra, 2014).…”

Section: Figure 17mentioning

confidence: 99%

“…The proposed façade showed efficiency in performance using passive cooling strategies for office spaces in hot arid regions by reducing energy consumption while promoting thermal and visual comfort [13] . This research can highly contribute to reducing energy consumption for commercial buildings and providing a healthier work environment by using renewable sources of energy [11] . From this research and design prototype, it is possible if a similar concept is applied to the building envelope on a larger scale, especially office building.…”

Section: Figure 17mentioning

confidence: 99%

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Review on Design Strategies of Energy Saving Office Building with Evaporative Cooling in Tropical Region

Savero

Antaryama

Soemardiono

2020

JTS

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This research reviews the theories and design of energy-saving office buildings that apply evaporative cooling concepts to inhibit solar heat and improve natural cooling. The limited land in urban areas forces the building orientation facing East-West to increase building heat gain in tropical regions. This research is interesting because evaporative cooling is rarely found in office building design, especially in tropical areas. The method used is literature searching (theory, journal, and president) related to the energy-saving building (passive design) and passive cooling with evaporative cooling techniques. A review of design strategies can be used as a reference for general criteria applied at the design stage of office building architectural design. As a limitation, questions are needed to find related theories such as (1) what are the factors of building heat control and the criteria required in designing energy-saving office building (2) how to apply evaporative cooling techniques to design the energysaving office building. Solar heat is a key factor in building heat gain. So it must be noticed to control building heat to protect heat transfer into buildings. The results of the design energy saving office buildings in the tropical region have required the application of passive designs such as building orientation, building core placement, shading elements, cross ventilation, natural lighting, producing shape, and application of evaporative cooling with consideration of wind direction and hottest side due to solar radiation.

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“…These approaches include the integration of functional material components into the skin designs such as hygroscopic building materials Simonson et al (2004), Holstov et al (2015), Abdelmohsen et al (2019), spectrally selective glazing (Kim et al, 2017), or spectrally selective coatings (Liang et al, 2019b), and the use of dynamic façades (Attia et al, 2018; Gehbauer et al, 2020; Karanouh and Kerber, 2015; Yi and Kim, 2021). In the area of dynamic façades, Khadra and Chalfoun (2014) developed a double-layer, South-facing façade that consisted of a layer facing the interior of the building and another layer facing the exterior. The layers were completely shaded to prevent the sunlight from directly heating the building interior.…”

Section: Introductionmentioning

confidence: 99%

Modeling and design optimization of shape memory alloy-enabled building skins for adaptive ventilation

Fang

Hernandez

2022

Journal of Intelligent Material Systems and Structures

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This paper presents a modeling and design study of shape memory alloy (SMA)-based skins that enable adaptive ventilation in buildings. The skins are formed by panels with attached SMA wires and can be periodically arranged to form a building envelope. When the environmental temperature is below the SMA austenitic transformation temperatures, the SMA wires are relaxed and the panel forms a closed surface, preventing circulation of exterior airflow into the building. When the environmental temperature exceeds such SMA transformation temperatures, the SMA wires contract and bend the panel to create an opening that enables circulation of airflow into the building. The response of the adaptive skins is evaluated through a thermomechanically coupled finite element model. The applied thermal loads are determined from published field measurements. Metallic materials and fiber-reinforced composites are explored as candidates for the panel. Genetic algorithms are employed for optimization, where the objective is that the panel exhibits a large opening when the environmental temperature exceeds a prescribed ideal temperature and stays closed otherwise. Optimization results show that two-layered composite panels with ply angles of 45°/−45° and thicknesses of 0.1/0.25 mm (layers ordered from the interior to the exterior side) display the most favorable performance.

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Development of an integrated passive cooling façade technology for office buildings in hot arid regions

Cited by 8 publications

References 1 publication

Climate change mitigation mechanisms for buildings in hot Arid regions (Case study: Tall Buildings of MENA Region)

Climate change mitigation mechanisms for buildings in hot Arid regions (Case study: Tall Buildings of MENA Region)

Review on Design Strategies of Energy Saving Office Building with Evaporative Cooling in Tropical Region

Modeling and design optimization of shape memory alloy-enabled building skins for adaptive ventilation

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