Evaluation of a retrofitted heritage building in downtown Cairo as a best-practice example

Ibrahim, Hanan S.; Khan, Ahmed Z.; Attiya, M; Serag, Yehya

doi:10.1088/1755-1315/863/1/012025

Cited by 2 publications

(12 citation statements)

References 10 publications

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“…Figure 3 shows real photos of the selected buildings. Following the work of Ibrahim et al (2021), the buildings are referred to as reference buildings 7, 8, and 9. The selected buildings are inhabited by middle-income occupants, as labeled by (CAPMAS) [22].…”

Section: Description Of the Selected Reference Buildingsmentioning

confidence: 99%

“…The hourly measurements were taken in winter for a week. This method was used in some studies such as Ibrahim et [12,25,46,47].…”

Section: Measurements and Weather Datamentioning

confidence: 99%

“…In this work, we selected DesignBuilder software, which is a building energy modeling software package, used to control internal building conditions and provide dynamic analysis of energy consumption [12]. Very recent studies carried out in residential buildings in hot arid climates confirmed the credibility of DesignBuilder for estimating indoor air temperature and energy use [12,25]. Another study carried out by Mahar (2019) proved the credibility of DesignBuilder in Pakistan [46].…”

Section: Simulation and Calibrationmentioning

confidence: 99%

“…This article contributes to fill the gap in this field. Thus, this work is a part of a wider-scale research project comprising a series of published articles [12,24,25]. The research process has multiple stages that start with developing a classification method to select reference buildings of a heritage building stock [24], proposing a retrofitting checklist based on in-depth analysis of cultural values [24,25], and assessing the potential of applying passive retrofitting scenarios to enhance indoor thermal comfort [12].…”

Section: Introductionmentioning

confidence: 99%

“…Thus, this work is a part of a wider-scale research project comprising a series of published articles [12,24,25]. The research process has multiple stages that start with developing a classification method to select reference buildings of a heritage building stock [24], proposing a retrofitting checklist based on in-depth analysis of cultural values [24,25], and assessing the potential of applying passive retrofitting scenarios to enhance indoor thermal comfort [12]. Lastly, in this article, we assess the potential of transforming the heritage residential building stock towards "nearly-zero energy" and apply the entire methodology developed through the previous stages.…”

Section: Introductionmentioning

confidence: 99%

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Towards Nearly-Zero Energy in Heritage Residential Buildings Retrofitting in Hot, Dry Climates

et al. 2021

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Retrofitting “nearly-zero energy” heritage buildings has always been controversial, due to the usual association of the “nearly-zero energy” target with high energy performance and the utilization of renewable energy sources in highly regarded cultural values of heritage buildings. This paper aims to evaluate the potential of turning heritage building stock into a “nearly-zero energy” in hot, dry climates, which has been addressed in only a few studies. Therefore, a four-phase integrated energy retrofitting methodology was proposed and applied to a sample of heritage residential building stock in Egypt along with microscale analysis on buildings. Three reference buildings were selected, representing the most dominant building typologies. The study combines field measurements and observations with energy simulations. In addition, simulation models were created and calibrated based on monitored data in the reference buildings. The results show that the application of hybrid passive and active non-energy generating scenarios significantly impacts energy use in the reference buildings, e.g., where 66.4% of annual electricity use can be saved. Moreover, the application of solar energy sources approximately covers the energy demand in the reference buildings, e.g., where an annual self-consumption of electricity up to 78% and surplus electricity up to 20.4% can be achieved by using photo-voltaic modules. Furthermore, annual natural gas of up to 66.8% can be saved by using two unglazed solar collectors. Lastly, achieving “nearly-zero energy” was possible for the presented case study area. The originality of this work lies in developing and applying an informed retrofitting (nearly-zero energy) guide to be used as a benchmark energy model for buildings that belong to an important historical era. The findings contribute to fill a gap in existing studies of integrating renewable energy sources to achieve “nearly-zero energy” in heritage buildings in hot climates.

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Section: Description Of the Selected Reference Buildingsmentioning

confidence: 99%

“…The hourly measurements were taken in winter for a week. This method was used in some studies such as Ibrahim et [12,25,46,47].…”

Section: Measurements and Weather Datamentioning

confidence: 99%