Development and testing of photovoltaic pavement for heat island mitigation

Efthymiou, Chrysanthi; Santamouris, M.; Κολοκότσα, Δ.; Koras, A.

doi:10.1016/j.solener.2016.01.054

Cited by 98 publications

(28 citation statements)

References 27 publications

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“…As part of the research of the building envelope aimed at the realization of the intelligent building, the photovoltaic systems integrated in the horizontal and vertical facades have already been extensively developed in scientific literature and design practice, yet an innovative derivation is its use for outdoor flooring and in an experimental installation, there is a reduction in surface and ambient temperature compared to traditional flooring [17]. thanks to the integration with the electronic we can synchronize artificial conditioning and atmospheric factors, ensuring a complementary innovation of materials, technologies and electronic components in an holistic view of the building-plant aimed at achieving the new frontier of energy saving: the positive energy ( Figure 6).…”

Section: Strategiesmentioning

confidence: 99%

Energy Efficiency of Low Quality Built Heritage: Methodological Reflections on Achieving the NZEB through a Case Study in the City of L'Aquila

Ieie¹

2018

J. Technol. Innov. Renew. Energy

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About the building heritage and, in particular, about the widespread heritage without historical or architectural quality, it currently opens a challenge in perpetual evolution. This is the integration of innovative technological solutions for building regeneration, which can help a qualitative improvement of the living spaces and the reduction of energy consumptions. Context factors, the intensity of precipitation, the different types of soil, and the amount of solar irradiation or wind speed are doubtless the main causes of the degradation of the existing buildings. On another way, through the control of climatic and biophysical parameters, the focus on the properties of materials and a careful design process, these variables can increase the use of renewable energy sources, becoming environmental resources to reduce energy consumption, to provide comfortable living spaces and aiming the realization of a Near Zero Energy Building. The paper proposes a reflection on the main methodological issues emerged in the hypothesis of intervention experimented on a case study in the city of L'Aquila. The building, located near the historical center of the city, is in direct relation with important pre-existences such as the Forte Spagnolo and the San Salvatore hospital. It is an example of possible regeneration of low quality building in which the additional use of new functional spaces can increase not only energy performances, but also an increase of architectural value of the building.

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Section: Strategiesmentioning

confidence: 99%

Energy Efficiency of Low Quality Built Heritage: Methodological Reflections on Achieving the NZEB through a Case Study in the City of L'Aquila

Ieie¹

2018

J. Technol. Innov. Renew. Energy

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“…Given this introduction, the aim of the present research is addressed to the analysis of the suitability of a clear synthetic resin to be used as a binder for road pavement mixes instead of traditional bitumen. Given the fact that little research exists on clear, coloured, or solar-reflective road materials for UHI mitigation [16][17][18], this paper would like to enlarge the existing literature, representing the preliminary phase of a comprehensive research program aimed at developing high-reflective pavements for UHI mitigation with the final goal of a proper quantification of cooling benefits due to pavement chromatic characteristics. Even if the clear colour of the studied material can strongly affect inservice temperatures, heat distribution within the pavement, and its diffusion into the environment, the mixes prepared with such a binder can be used only if they are also able to guarantee adequate mechanical properties and durability as well as to preserve chromatic characteristics over time.…”

Section: Introductionmentioning

confidence: 99%

Aesthetic and Mechanical Suitability of a Clear Synthetic Resin as a Unconventional Binder for Road Pavements

Pasetto

Baliello

Giacomello

et al. 2019

Advances in Materials Science and Engineering

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Current environmental awareness interests several aspects of civil engineering, including road construction. Indeed, new challenges related to environmental pollution and landscape preservation must be faced. In this sense, clear road pavement surfaces represent an effective technology aimed at guaranteeing environmental-friendly aesthetic pavements. The use of clear synthetic resin as a binder involves several benefits for the mitigation of in-service reached temperatures and the heat distribution within pavements (with appreciable effects on pavement mechanical performance too). The present paper illustrates an experimental study aimed at analysing the chromatic and mechanical properties of a clear synthetic resin and thus its suitability as a binder for road pavement mixes. Chromatic characteristics were assessed through digital image analysis at different aging conditions. A dynamic shear rheometer was used to evaluate the linear viscoelastic properties as well as fatigue and rutting potential of the binder in a wide range of temperatures and frequencies. A conventional 35/50 penetration grade bitumen was also investigated for comparison purposes. The clear resin exhibited limited changes in colour (darkening effects), mainly in the case of short-term aging. On the other hand, a low temperature-dependency of such a binder was observed up to 58°C. Slightly increased aptitude to rutting at the higher temperatures was detected, even if it is worth noting that clear in-service mixtures would achieve lower temperatures than traditional “black” materials at a given environmental condition (air temperature, solar radiation, etc.). The resin also exhibited a softer behaviour, along with an enhanced fatigue resistance. Overall, the studied innovative binder showed promising results in view of its effective use in road paving.

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“…Yamagate et al concluded that the temperature of water-retentive pavements can be reduced by 8°C on average in the daytime and 3°C at night by spraying recycled water onto them, and thus alleviate the urban heat-island effect [26]. The ambient temperature can be effectively reduced as a result of reduction in temperature of the road surface [27].…”

Section: Introductionmentioning

confidence: 99%

Design and experiment of thermoelectric asphalt pavements with power-generation and temperature-reduction functions

Jian

Xiao

Yuan

et al. 2018

Energy and Buildings

121

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Asphalt pavements tend to absorb solar energy and accumulate heat, which results in several negative effects. They contribute to the urban heat-island effect, plastic deformation of pavements, and aging of asphalt materials. One solution is to convert or transfer the pavement heat. A brand new road thermoelectric generator system (RTEGS) is designed for this purpose. The system added three modules to the traditional asphalt pavement structure: heat-conduction, thermoelectric-conversion, and cold-end cooling. The modules convert heat absorbed in asphalt pavements to electrical energy and reduce the pavement surface temperature. Field testing of the new system subject to a full seasonal change (half a year) was conducted. The data of temperature reduction and voltage output in a field environment were obtained. The results showed that the system reduced the pavement surface temperature by 8-9°C in hot seasons, and the electrical output from an asphalt pavement of size 300 mm × 300 mm × 100 mm reached 0.564 V. At this output, a 10,000 m 2 (1 km long and 10 m wide) pavement area would generate about 33 kWh of electrical energy in a single day in the summer, not considering the scale effects of the RTEGS. The system provides a new approach to alleviate the urban heat-island effect, and to convert and utilize solar heat absorbed in asphalt pavement.

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Development and testing of photovoltaic pavement for heat island mitigation

Cited by 98 publications

References 27 publications

Energy Efficiency of Low Quality Built Heritage: Methodological Reflections on Achieving the NZEB through a Case Study in the City of L'Aquila

Energy Efficiency of Low Quality Built Heritage: Methodological Reflections on Achieving the NZEB through a Case Study in the City of L'Aquila

Aesthetic and Mechanical Suitability of a Clear Synthetic Resin as a Unconventional Binder for Road Pavements

Design and experiment of thermoelectric asphalt pavements with power-generation and temperature-reduction functions

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