Thermal impact of street canyon microclimate on building energy needs using TRNSYS: A case study of the city of Tangier in Morocco

Bat, Adnane M'Saouri El; Romani, Zaid; Bozonnet, Emmanuel; Draoui, Abdeslam

doi:10.1016/j.csite.2020.100834

Cited by 25 publications

(11 citation statements)

References 27 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In this study, the energy, environmental, and economic performance of innovative energy-efficient movable prefabricated buildings for smart/co-working applications is analyzed using the TRaNsient SYStems simulation tool (TRNSYS) [34]. This software has been used by many scientific researchers with the aim of assessing the performance of building-integrated energy systems based on RES [35,36], and related results are reported in well-reputed, international scientific journals. These studies demonstrated that the TRNSYS program may be used in the analysis of the energy performance of buildings and renewable energy systems with high reliability, so that one can be confident of the accuracy of the predictions.…”

Section: Goals and Organization Of The Studymentioning

confidence: 99%

Innovative Energy-Efficient Prefabricated Movable Buildings for Smart/Co-Working: Performance Assessment upon Varying Building Configurations

et al. 2023

View full text Add to dashboard Cite

Worldwide, smart/co-working spaces are growing significantly, and prefabricated movable buildings for such an application could (i) save energy, CO2 emissions, and costs; (ii) enhance the worker’s perceived sense of surroundings; and (iii) support the rebirth of small villages with high regenerative potential. Innovative prefabricated movable building configurations to be used as an office for smart/co-working by a maximum of 6 persons have been designed and analyzed based on simulation data. In particular, 10 case studies corresponding to building configurations differing in terms of innovative energy-efficient measures related to the building envelope (smart windows operated under various control logics) and the energy systems serving the building (photovoltaic panels, small wind turbines, and electric storages) have been modeled and simulated by applying detailed dynamic simulation models via the simulation software TRNSYS. The performance of the 10 case studies has been compared from energy, environmental, and economic points of view with respect to a baseline system characterized by conventional building envelope and energy systems, with the aim of assessing the proposed measures and identifying the most efficient configuration. The simulation results highlighted that: (i) all the proposed alternative configurations allow to save primary energy (from 10.3% up to 100%), equivalent CO2 emissions(from 10.3% up to 100%), and operating costs (from 8.5% up to 100%) with respect to the baseline building; (ii) the building configurations including the smart windows only are not economically feasible in terms of simple pay-back (SPB) period, while the building configurations equipped with photovoltaic panels and/or electric storages and/or wind turbine represent a suitable investment thanks to an SPB lower than 15.2 years; (iii) a stand-alone building configuration for smart/co-working with energy demands totally covered by means of renewable sources can be obtained by combining smart windows, photovoltaic panels, electric storages and wind turbine.

show abstract

Section: Goals and Organization Of The Studymentioning

confidence: 99%

Innovative Energy-Efficient Prefabricated Movable Buildings for Smart/Co-Working: Performance Assessment upon Varying Building Configurations

et al. 2023

View full text Add to dashboard Cite

show abstract

“…Further, it is usually higher during the day time, because the clustered high-rise buildings retain the heat and reduce its ability to evaporate. As the heat that gets trapped in the street canyons gets released, the elevated temperatures can last well until the evening times [6,7,8].…”

Section: Urban Street Canyonmentioning

confidence: 99%

The impact of microclimate on energy performance of office buildings within urban contexts located in a composite climate, the city of Indore

Patel

Kaushik

2023

IOP Conf. Ser.: Earth Environ. Sci.

View full text Add to dashboard Cite

The energy consumption and thermal performance of a building depend not only on the internal factors, geometry and orientation but also on the external microclimatic factors such as vegetation, solar radiation, air temperature, wind speed and wind direction. Further, it is also influenced by the surrounding built environment characteristics such as street geometry, buildings and surface characteristics. The main objective of the current research paper is to record the energy performance of office buildings within urban contexts, located in a composite climate, for instance, the city of Indore and to determine the influence of the external parameters on energy consumption of the built space so as to optimize the built environment factors and achieve low energy consumption. The current study involves the identification of two office buildings in Indore with different built environmental characteristics. Field measurements were carried out on street canyons along the south and west façades of the buildings and the impact of external microclimatic parameters and the surrounding built environment characteristics on energy consumption of the building was quantified in this study. It was found that the street geometry, H/W ratio, street orientation, building material, urban density and vegetation has significant effects on microclimate and energy consumption of the buildings.

show abstract

“…The Transient Systems Simulation program (TRNSYS) is widely used by architects to predict building energy demands [28][29][30], but these TRNSYS programs are not CFD-based programs, leading to the following deficiencies. First, the TRNSYS program does not consider wind speed changes around the exterior walls, but instead only considers a fixed value, which causes inaccuracies in the energy demand predictions because of the strong effect of wind speed on the convective heat transfer from building surfaces [31][32][33]. Furthermore, the TRNSYS program cannot calculate the air temperature around the exterior walls for which it also considers a fixed air temperature value [31,34].…”

Section: Introductionmentioning

confidence: 99%

Evaluating the Effect of Window-to-Wall Ratios on Cooling-Energy Demand on a Typical Summer Day

Zheng

Bedra

et al. 2021

IJERPH

View full text Add to dashboard Cite

The window-to-wall ratio (WWR) significantly affects the indoor thermal environment, causing changes in buildings’ energy demands. This research couples the “Envi-met” model and the “TRNSYS” model to predict the impact of the window-to-wall ratio on indoor cooling energy demands in south Hunan. With the coupled model, “Envi-met + TRNSYS”, fixed meteorological parameters around the exterior walls are replaced by varied data provided by Envi-met. This makes TRNSYS predictions more accurate. Six window-to-wall ratios are considered in this research, and in each scenario, the electricity demand for cooling is predicted using “Envi-met + TRNSYS”. Based on the classification of thermal perception in south Hunan, the TRNSYS predictions of the electricity demand start with 30 °C as the threshold of refrigeration. The analytical results reveal that in a 6-storey residential building with 24 households, in order to maintain the air temperature below 30 °C, the electricity required for cooling buildings with 0% WWR, 20% WWR, 40% WWR, 60% WWR, 80% WWR, and 100% WWR are respectively 0 KW·h, 19.6 KW·h, 133.7 KW·h, 273.1 KW·h, 374.5 KW·h, and 461.9 KW·h. This method considers the influence of microclimate on the exterior wall and improves the accuracy of TRNSYS in predicting the energy demand for indoor cooling.

show abstract

Thermal impact of street canyon microclimate on building energy needs using TRNSYS: A case study of the city of Tangier in Morocco

Cited by 25 publications

References 27 publications

Innovative Energy-Efficient Prefabricated Movable Buildings for Smart/Co-Working: Performance Assessment upon Varying Building Configurations

Innovative Energy-Efficient Prefabricated Movable Buildings for Smart/Co-Working: Performance Assessment upon Varying Building Configurations

The impact of microclimate on energy performance of office buildings within urban contexts located in a composite climate, the city of Indore

Evaluating the Effect of Window-to-Wall Ratios on Cooling-Energy Demand on a Typical Summer Day

Contact Info

Product

Resources

About