Environmental benefits of green roofs on microclimate of Tehran with specific focus on air temperature, humidity and CO 2 content

Moghbel, Masoumeh; Salim, Radi

doi:10.1016/j.uclim.2017.02.012

Cited by 56 publications

(15 citation statements)

References 13 publications

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“…When it came to individual buildings, some scholars conducted field measurements to find out the influence of factors in the outdoor microclimate, such as height [38][39][40][41], orientation [42,43], and surrounding buildings [44]. Moghbel [45] measured the parameters of two different roofed buildings and found that the indoor air temperature and the average air CO 2 concentration of the green-roofed buildings were lower than those of asphalt roofed buildings. Wilde [46] found that the performance of the building was largely determined by the exposed microclimatic conditions.…”

Section: Introductionmentioning

confidence: 99%

Thermal Performance Analysis of Heat Collection Wall in High-Rise Building Based on the Measurement of Near-Wall Microclimate

Zhao

et al. 2021

Energies

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Near-wall microenvironment of a building refers to parameters such as wind speed, temperature, relative humidity, solar radiation near the building’s façade, etc. The distribution of these parameters on the building façade shows a certain variation based on changes in height. As a technology of passive heating and ventilation, the effectiveness of this application on heat collection wall is significantly affected by the near-wall microclimate, which is manifested by the differences, and rules of the thermal process of the components present at different elevations. To explore the feasibility and specificity of this application of heat collection wall in high-rise buildings, this study uses three typical high-rise buildings from Zhengzhou, China, as research buildings. Periodic measurements of the near-wall microclimate during winter and summer were carried out, and the changing rules of vertical and horizontal microclimate were discussed in detail. Later, by combining these measured data with numerical method, thermal process and performance of heat collection wall based on increasing altitude were quantitatively analyzed through numerical calculations, and the optimum scheme for heat collection wall components was summarized to provide a theoretical basis for the structural design of heat-collecting wall in high-rise buildings.

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Section: Introductionmentioning

confidence: 99%

Thermal Performance Analysis of Heat Collection Wall in High-Rise Building Based on the Measurement of Near-Wall Microclimate

Zhao

et al. 2021

Energies

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“…It is an insulation layer that can mitigate the negative effects of solar radiation while it generates a cooling effect through the evaporative process. It is even more effective when thermal insulating materials are used under the green roof layers [11].…”

Section: Introductionmentioning

confidence: 99%

Impact of Green Roofs on Energy Demand for Cooling in Egyptian Buildings

Ragab

Abdelrady

2020

Sustainability

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Energy consumption for cooling purposes has increased significantly in recent years, mainly due to population growth, urbanization, and climate change consequences. The situation can be mitigated by passive climate solutions to reduce energy consumption in buildings. This study investigated the effectiveness of the green roof concept in reducing energy demand for cooling in different climatic regions. The impact of several types of green roofing of varying thermal conductivity and soil depth on energy consumption for cooling school buildings in Egypt was examined. In a co-simulation approach, the efficiency of the proposed green roof types was evaluated using the Design-Builder software, and a cost analysis was performed for the best options. The results showed that the proposed green roof types saved between 31.61 and 39.74% of energy, on average. A green roof featuring a roof soil depth of 0.1 m and 0.9 W/m-K thermal conductivity exhibited higher efficiency in reducing energy than the other options tested. The decrease in air temperature due to green roofs in hot arid areas, which exceeded an average of 4 °C, was greater than that in other regions that were not as hot. In conclusion, green roofs were shown to be efficient in reducing energy consumption as compared with traditional roofs, especially in hot arid climates.

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“…Однако следует заметить, что исследований технологичности устройства кровельных покрытий с системами озеленения не приведено ни в отечественных, ни в зарубежных научно-исследовательских базах данных. Экспериментальные данные «зеленых» кровель, полученные в ходе исследований в развитых странах [9][10][11][12][13], показали, что пассивный эффект охлаждения вблизи энергоэффективных кровельных покрытий с системами озеленения приводит к уменьшению до 37 % тепловой энергии здания (рис. 1).…”

Section: Introductionunclassified

“…However it is noteworthy that neither Russian, nor international research databases contain any research projects on the efficiency of roof construction technologies designated for green systems. The experimental data on green roofs, obtained in the course of implementing research projects in the countries having advanced economies [10][11][12][13][14] have proven that the passive chilling effect identified in close proximity to energy efficient roofs, having green systems, reduces the building's thermal energy by 37 % (Fig. 1).…”

Section: Introductionmentioning

confidence: 99%

Comparative technological efficiency of green roof systems

Korol

Shushunova

2020

Stroitel’stvo: nauka i obrazovanie

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Introduction. The problem of efficiency of process technologies, invested into innovative building engineering systems, needs more attention. The co-authors of this research article have analyzed different options for the installation of green roof systems. The mission of the study is to analyze the engineering processes that encompass the installation of different green roof systems and to minimize their labour intensity by improving their efficiency. In pursuance of this mission, the co-authors set and achieved such objectives as the review of the researches completed by the Russian and foreign scholars specializing in green construction and roofing technologies, and the analysis of the technological efficiency of green roofing systems. New engineering solutions, such as modular rooftop gardens, can be applied to reduce the overall labour intensity of green roofing. Materials and methods. The co-authors have used comparative analysis, network planning, and scheduling theory methods. Results. The co-authors have performed this research to identify the efficiency criteria for the process of installation of green roof systems, such as continuous green roof systems (Option A) and modular green roof systems (Option B). Conclusions. With regard to the findings of the study one can make a conclusion that there is a need for new engineering criteria to be developed and enacted. The description of their organizational, technological and structural characteristics must be provided in respect of the installation of innovative building engineering systems, including different types of green roof systems.

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Environmental benefits of green roofs on microclimate of Tehran with specific focus on air temperature, humidity and CO 2 content

Cited by 56 publications

References 13 publications

Thermal Performance Analysis of Heat Collection Wall in High-Rise Building Based on the Measurement of Near-Wall Microclimate

Thermal Performance Analysis of Heat Collection Wall in High-Rise Building Based on the Measurement of Near-Wall Microclimate

Impact of Green Roofs on Energy Demand for Cooling in Egyptian Buildings

Comparative technological efficiency of green roof systems

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