Effect of Urban Street Canyon Aspect Ratio on Thermal Performance of Road Pavement Solar Collectors (RPSC)

Nasir, Diana S.N.M.; Hughes, Ben Richard; Calautit, John Kaiser; Aquino, Angelo I.; Shahzad, Sally

doi:10.1016/j.egypro.2017.03.936

Cited by 10 publications

(10 citation statements)

References 8 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The work (Nasir et al, 2017a) investigated the influence of pipe layout, embedded pipe depth, pipe spacing, pipe diameter, the flow rate of the medium used for the heat transfer, thermal conductivity, etc. The impact of building geometry (Nasir et al, 2015) and street canyon aspect ratio (Nasir et al, 2017c, Nasir et al, 2017b) on the PSC system performance were also analysed using a decoupled approach. The decoupled approach simulates the urban canyon and PSC system separately and cannot predict the PSC's direct influence on the urban air temperature.…”

Section: Novelty and Gaps In Knowledgementioning

confidence: 99%

“…The environmental parameters would also affect the performance of pavement solar collectors. The influence of building geometry, urban street canyon aspect ratio and urban form on the PSC system have been analysed in the previous works (Nasir et al, 2015, Nasir et al, 2017c, Nasir et al, 2017b. Memon et al (2010) evaluated the role of wind speed and building aspect ratio (ranging between 0.5 and 8) on air temperatures in an urban canyon using CFD and comparing results with wind tunnel measurements; two diurnal and one nocturnal heating situation were considered.…”

Section: Introductionmentioning

confidence: 99%

“…The canyon geometry determined the performance of pavements in the urban canyon areas. Nasir et al (2017c) showed that PSC's performance has significantly dropped (up to 30%) in shaded areas and the refraction of the solar radiation influences the temperature distribution on the ground. Considering economic benefits, it is necessary to analyse the PSC system's performance in a high-rise building area before putting into operation.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

A Coupled Modelling Method for the Evaluation of the Impact of Pavement Solar Collector on Urban Air Temperature and Thermal Collection

Jimenez-Bescos

Pantua

et al. 2021

Future Cities and Environment

View full text Add to dashboard Cite

The Urban Heat Island (UHI) effect is a phenomenon whereby urban areas become warmer than their surrounding rural areas, due to the replacement of vegetation and soil with surfaces such as asphalt and concrete. The asphalt pavement surfaces tend to absorb a large amount of heat through solar radiation and increase the air temperature, which affects the operation of building heating and cooling systems, causing environmental problems and thermal discomfort. However, this energy can be collected by water circulated through buried copper pipes to cool down temperatures and be stored for other usages. This work aims to develop a method for determining the optimum areas to locate pavement solar collector (PSC) systems and simulate the reduction of ambient air and surface temperature by using a coupled computational modelling approach. Discrete ordinate model and solar-ray tracing were utilised for solar radiation effect modelling in the 3D simulation. Furthermore, the PSC prototype was developed, and lab-scale experiments were carried out for validation. Based on the simulated conditions, in the unshaded area, the asphalt slab's near-surface temperature was reduced by up to 10℃ and the outlet water temperature increased by about 5℃. At the pedestrian height level, the air temperature was reduced up to 4.6℃. This study further expands the investigation of the variation of outdoor conditions such as air temperature and solar radiation. The results showed that the proposed method could be used to optimise the pavement solar collector's positioning to reduce urban surface and air temperature.

show abstract

Section: Novelty and Gaps In Knowledgementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

A Coupled Modelling Method for the Evaluation of the Impact of Pavement Solar Collector on Urban Air Temperature and Thermal Collection

Jimenez-Bescos

Pantua

et al. 2021

Future Cities and Environment

View full text Add to dashboard Cite

show abstract

“…Further, they analyzed the effect of urban form (symmetric and asymmetric height of the urban street canyon) on the performance of ASC and found that there was a significant reduction in the ASC performance when taller building row was behind the first approaching building row. Also, study on the effect of canyon aspect ratio showed that there was significant increase of pavement surface temperature when the aspect ratio was increased from 1 to 2 beyond which there was only minimal increase. Similar works on ASCs or HAPs include those reported by Zhou et al, Khoja and Waheeb, Hashim et al, Moukomel and Moridpour, Bai et al, Mirzanamadi, and Pan et al…”

Section: Technologies Of Energy Harvesting From Pavements and Roadwaysmentioning

confidence: 99%

Energy harvesting from pavements and roadways: A comprehensive review of technologies, materials, and challenges

2019

View full text Add to dashboard Cite

Summary Energy harvesting from pavements has been a topic of extensive research in the recent past. This domain has attracted not only the research community but also the industry and governmental authorities. The various sources exploited for energy harvesting from pavements and roadways are solar radiation, mechanical energy dissipated due to moving vehicles and pedestrians, geothermal energy, rainwater, and wind. This article presents an exhaustive and updated review of all potential means of energy harvesting from these sources. Following the introductory section, the article sequentially covers the energy harvesting methods and their research progress, materials, development of practical systems, commercial status, comparison of technologies, challenges, and concluding remarks. This study reveals that there is wide scope for further research and feasibility studies, which could lead to a wide‐spread implementation of the various technologies for energy harvesting from pavements and roads.

show abstract

“…Shafaghat (2016) reveals how road geometry influences the formation of microclimates in one area, especially in coastal tropical climates. Microclimate is influenced by various factors including morphological characters (Kushol, 2013;Ok, 2014;Pandya, 2014), geometric patterns (Deng, 2016), construction material (Santamouris, 2012;Shishegar, 2013;Chokhachian, 2017), orientation (Shishegar, 2013;Sanusi, 2015), building density and building height (Nasira, 2016) and green space/ vegetation (Klein, 2014;Duarte, 2015).…”

Section: Snapshoot Of Literature Reviewmentioning

confidence: 99%

Built Environment Impact to Microclimate (Air Temperature)

Muazir

Lestari

2019

dimensi

View full text Add to dashboard Cite

In step with economic growth, Pontianak City continues developing its physical development. From an environmental perspective, physical development that does not pay attention to the environment may make air temperature rise and create inconvenience to human. The purpose of this study is to evaluate the tendency in the built/physical environmental aspects that have the possibility of influencing the microclimate in the urban center, regarding the trade area in Pontianak City. Built environmental aspects such as building density, building height, materials, etc. are described and then simulated towards the existing climate elements such as temperature, humidity, solar radiation, cloud cover, and others. The simulations used three-dimensional software ENVI_MET version 4. From findings, it can be seen that the built environment characteristics can affect the microclimate condition. From the simulations, the dominant temperature differences may occur in such built environment conditions such as density, dimensions, location, material, and vegetation closure.

show abstract

Effect of Urban Street Canyon Aspect Ratio on Thermal Performance of Road Pavement Solar Collectors (RPSC)

Cited by 10 publications

References 8 publications

A Coupled Modelling Method for the Evaluation of the Impact of Pavement Solar Collector on Urban Air Temperature and Thermal Collection

A Coupled Modelling Method for the Evaluation of the Impact of Pavement Solar Collector on Urban Air Temperature and Thermal Collection

Energy harvesting from pavements and roadways: A comprehensive review of technologies, materials, and challenges

Built Environment Impact to Microclimate (Air Temperature)

Contact Info

Product

Resources

About