Case study assessment for natural ventilation performance of heritage buildings in the Mediterranean city of Alexandria (Egypt)

Taher, Ahmed; Prizeman, Oriel Elizabeth Clare; Gomaa, Bakr; Lannon, Simon Charles

doi:10.1088/1757-899x/609/3/032012

Cited by 2 publications

(1 citation statement)

References 4 publications

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“…In the MENA region, occupants' comfort and energy conservation can be efficiently improved through using natural ventilation instead of mechanical ventilation [6]. In Bolzano, Italy, Exner et al analyzed the renovation strategies in a heritage building, and the results showed that applying natural ventilation strategies, such as the mechanical operation of windows, should be investigated carefully to improve indoor air quality and decrease energy consumption [5].…”

Section: Introductionmentioning

confidence: 99%

An approach to achieve thermal comfort and save energy in heritage buildings using different operating patterns

Ahmad¹,

El-Sayed²,

Taha³

et al. 2020

Int. J. EQ

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The effective utilization of natural ventilation in heritage buildings could save a significant rate of electrical energy, as the airflow pattern affects interior comfort conditions; achieving users' thermal comfort counts as an added value. This study aims to promote an approach in the form of a design strategy for a developed optimal annual operating schedule for heritage buildings, targeting the best operating pattern/s for each month. The study was carried out for a typical heritage building in the central district of Alexandria city (a typical Mediterranean Basin city), Egypt, for improving energy efficiency while achieving users' thermal comfort. The paper adopted a simulation methodology for conducting energy and thermal comfort analyses using DesignBuilder simulation software. The approach was applied to a south-oriented room of the selected residential heritage building, which is the most affected orientation in the temperate-humid (slightly warmer) climate. The developed operating patterns included closed and opened windows, controlled natural ventilation, and HVAC system for cooling and heating with different temperature setpoints. The results showed that using the developed optimal annual operating schedule can save up to 47% of the total cooling and heating electrical energy annually, while achieving 365 thermally comfortable days a year, including 177 days when only natural ventilation operating patterns are used. The study revealed the importance of considering the optimal operating patterns schedule as an approach to improve the environmental performance of heritage buildings. Also, the optimal annual operating schedule resulted in an adjusted base-case that can be used for evaluating the retrofitting scenarios for south-oriented, energy-efficient heritage buildings in temperate-humid climate.

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Section: Introductionmentioning

confidence: 99%

An approach to achieve thermal comfort and save energy in heritage buildings using different operating patterns

Ahmad¹,

El-Sayed²,

Taha³

et al. 2020

Int. J. EQ

View full text Add to dashboard Cite

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Risk analysis for preventive conservation of heritage collections in Mediterranean museums: case study of the museum of fine arts in Alexandria (Egypt)

Elnaggar,

Said,

Kraševec

et al. 2024

Herit Sci

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The impacts of climate change on heritage collections in Mediterranean museums are serious and lead to accelerated material degradation, loss of value, increasing conservation costs and climatisation. Climate change scenarios and simulation models have been developed to predict the extreme and average future environmental conditions and to assess the future long-term risks caused by global warming for museum buildings and their collections in Mediterranean countries, with Egypt being particularly at risk. This paper presents the results of the risk analysis of the indoor and outdoor environments in Alexandria Museum of Fine Arts (AMFA) in Egypt to provide an overview of the current situation of conservation and museum management and to provide evidence-based data to support decision-making regarding preventive conservation given the museum's limited funding, capacity and resources. Unfortunately, the air quality in the museum cannot be considered satisfactory and specific measures need to be taken to improve the level of air quality and museum and building management. The results enabled an assessment of indoor air quality and provided information on potential risks to the museum building and collections, including variations in temperature (T) and relative humidity (RH), concentrations of NO2, SO2, O3, CO2, acetic and formic acid and lighting conditions, as well as the location and management of the museum. The results necessitate the development of a preventive conservation plan to address the challenges associated with high T/RH fluctuations and pollution pressure. This requires more regular use of the HVAC system within certain T/RH set points as well as minimising light exposure and the use of UV-filtering glazing. Care should be taken to ensure that housekeeping and emergency preparedness reduce the damping and salt florescence in the museum building. However, dealing with the impact of climate change on indoor and outdoor environments and museum collections in Mediterranean museums requires a holistic and adaptive approach that includes joint collaboration, research, training and strategic planning to ensure the long-term preservation of valuable cultural heritage collections in different climates with customised adaptations based on local environmental conditions, resources and needs. Resilience planning should be region-specific and take into account the potential impacts of extreme weather events, sea level rise and other climate-related challenges.

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Case study assessment for natural ventilation performance of heritage buildings in the Mediterranean city of Alexandria (Egypt)

Cited by 2 publications

References 4 publications

An approach to achieve thermal comfort and save energy in heritage buildings using different operating patterns

An approach to achieve thermal comfort and save energy in heritage buildings using different operating patterns

Risk analysis for preventive conservation of heritage collections in Mediterranean museums: case study of the museum of fine arts in Alexandria (Egypt)

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