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  • The Potential of Heat Collection from Solar Radiation in

    The Potential of Heat Collection from Solar Radiation in Asphalt Solar Collectors in Malaysia Salmia Beddu1*, Siti Hidayah Abdul Talib1, Zarina Itam1 1Department of Civil Engineering, Universiti

    The Potential of Heat Collection from Solar Radiation

    The implementation of asphalt solar collectors as a means of an energy source is being widely studied in recent years. Asphalt pavements are exposed to daily solar radiation, and are capable of

    The Potential of Heat Collection from Solar Radiation

    2016-3-1 · The implementation of asphalt solar collectors as a means of an energy source is being widely studied in recent years. Asphalt pavements are exposed to daily solar radiation, and are capable of reaching up to 70°C in temperature. The potential of harvesting energy from solar pavements as an alternative energy source in replace of non-renewable energy sources prone to depletion such as fuel

    Asphalt adds to air pollution, especially on hot, sunny

    2020-9-2 · A new study finds that asphalt is a significant source of air pollutants in urban areas, especially on hot and sunny days. Yale researchers observed that common road and roofing asphalts produced complex mixtures of organic compounds, including hazardous pollutants, in a range of typical temperature and solar

    HARVESTING ENERGY FROM ASPHALT PAVEMENTS AND

    2008-11-20 · A. The amount of solar radiation that reaches the pavement surface depends on: 1. The geographical location of the pavement 2. The specific day of the year 3. The presence or absence of cloud cover The solar radiation is often expressed in kWh/m2/day, for example 5 kWh/m2/day. If this

    Solar Radiation an overview ScienceDirect Topics

    Solar radiation reaches earth's surface as (1) direct (beam) solar radiation, (2) diffuse solar radiation, and (3) reflected radiation, which can be neglected. The total radiation received from the sun, of a horizontal surface at the level of the ground for a serene day, is the sum of the direct and diffuse radiations.

    A CFD analysis of several design parameters of a road

    2017-1-15 · The solar radiation (13:00) has directly heated the surface closer to Building A and was obstructed by Building B which overshadowed about one-third of the road surface. In terms of the air movement, low airflow velocity was observed specifically at the centre of the canyon which caused very low rate of air-solid heat convection at the

    Temperature and Solar Radiation Effects on Potential

    1990-3-1 · The objective of this analysis was to use a simple, mechanistic crop growth model to examine the effects of variation in solar radiation and temperature on potential maize (Zea mays L.) yield among locations.Crop phenology and leaf growth were calculated from daily mean temperature data obtained at the five locations studied.

    Predicting Maximum Pavement Surface Temperature

    radiation (9.3 µm) at 100°F and 0.49 for solar radiation that is considered shortwave radiation (less than 2 µm). White paper has an absorptivity of about 0. 95 to long-wave radiation and 0.28 to shortwave radiation. For asphaltic materials it seems that a 501ar does not vary substantially over a wide range. Typically a 501ar for asphalt

    Global Solar Atlas

    2020-12-22 · The Global Solar Atlas provides a summary of solar power potential and solar resources globally. It is provided by the World Bank Group as a free service to governments, developers and the general public, and allows users to quickly obtain data and carry out a simple electricity output calculation for any location covered by the solar resource database.

    [PDF] Asphalt solar collectors: A literature review

    Asphalt pavements subject to solar radiation can reach high temperatures causing not only environmental problems such as the heat island effect on cities but also structural damage due to rutting or hardening as a result of thermal cycles. Asphalt solar collectors are doubly effective active systems: as they solve the previously mentioned problems and, moreover, they can harness energy to be

    Analysis of Asphalt Solar Collectors Using a Finite

    2017-10-31 · • Asphalt concrete road surfaces absorb significant amounts of solar radiation which can makes it a potential heat resource. • A avement p solar collector (PSC) is a heat exchanger system embedded in the pavement structure which can be used to

    Asphalt-related emissions are a major missing

    Asphalt-based roofing materials are exposed to both high temperatures and solar radiation. Potential temperature-related emissions were estimated on the basis of summertime black roof temperatures (75°C) using the time-resolved liquid roofing asphalt experiments,which had the median temperature–related EF for the roofing asphalt (section

    Albedo of Pavement Surfacing Materials: In Situ

    2015-10-14 · solar exposition and under low wind conditions, the surface temperature of a new asphalt pavement with an albedo of 0.05, which means it reflects 5% and absorbs 95% of the solar radiation, can reach 50°C higher than air temperature (Synnefa et al. 2008).

    Comparison of Potential Contribution of Typical

    2020-10-8 · paper, heat island potential (HIP) is proposed as a new index to analyze the influence of pavement materials on UHIE. It is shown that the temperature inside a pavement distinctly depends on the depth, and varies, but is usually higher than the air temperature. Solar radiation in the daytime

    The Use of Reflective and Permeable Pavements as a

    The Use of Reflective and Permeable Pavements as a Potential Practice for Heat Island Mitigation and Stormwater Management H. Li1*, noon with high solar radiation intensity. The black asphalt pavement (B1) has higher surface temperature than concrete (C1) and paver (A1) pavements with light color. the more the solar radiation is

    25 November 2010 Lighter coloured roads could reduce

    2019-7-25 · sample of conventional black asphalt. In the laboratory tests, all of the samples reflected back higher levels of solar radiation than conventional black asphalt. The amount of solar radiation reflected ranged from 55 per cent (off-white sample) to 27 per cent (red and green samples). Black asphalt reflects 4 per cent of solar radiation.

    The use of reflective and permeable pavements as a

    2013-2-25 · The relatively low albedo of asphalt pavements will present a high surface temperature due to absorbing more incident solar radiation. In contrast, the concrete and interlocking concrete paver pavements generally have a higher albedo, and give a lower pavement temperature since more incident solar radiation is reflected from the surface [ 41

    Effects of solar radiation on convection and internal

    2020-1-6 · Effects of solar radiation on convection and internal waves in ice-covered lake Damien Bouffard1, Roman E Zdorovennov 2, Galina E. Zdorovennova,Arkady Y. Terzhevik,and Alfred Wüest1;3 1 Physics of Aquatic Systems Laboratory, Margaretha Kamprad Chair, Ecole Polytechnique Federale de Lausanne, Switzerland

    SOLAR IRRADIATION FUNDAMENTALS

    2017-1-25 · SOLAR ENERGY CONVERSION AND PHOTOENERGY SYSTEMS Vol. II Solar Irradiation Fundamentals Zekâi Şen 1.73x1014 kW and this is equivalent to 1.5x1018 kWh annually, which is equivalent to 1.9x1014 ton coal equivalent (tce). Compared to the annual world consumption of almost 1010 tce, this is a very huge and unappreciable amount. It is approximately about 10,000

    Radiation and energy balance characteristics of

    2016-1-25 · Solar radiation and energy balance between the atmosphere and asphalt pavement directly affect the heat absorption of the pavement, resulting in a temperature increase and possible thawing of the permafrost beneath embankments in permafrost regions. The study area is located in the eastern side of the Qiangtang large continuous permafrost on the Qinghai-Tibet Plateau.

    HARVESTING ENERGY FROM ASPHALT PAVEMENTS AND

    2008-11-20 · A. The amount of solar radiation that reaches the pavement surface depends on: 1. The geographical location of the pavement 2. The specific day of the year 3. The presence or absence of cloud cover The solar radiation is often expressed in kWh/m2/day, for example 5 kWh/m2/day. If this

    [PDF] Asphalt solar collectors: A literature review

    Asphalt pavements subject to solar radiation can reach high temperatures causing not only environmental problems such as the heat island effect on cities but also structural damage due to rutting or hardening as a result of thermal cycles. Asphalt solar collectors are doubly effective active systems: as they solve the previously mentioned problems and, moreover, they can harness energy to be

    Albedo of Pavement Surfacing Materials: In Situ

    2015-10-14 · solar exposition and under low wind conditions, the surface temperature of a new asphalt pavement with an albedo of 0.05, which means it reflects 5% and absorbs 95% of the solar radiation, can reach 50°C higher than air temperature (Synnefa et al. 2008).

    Cooling Performance and Thermal Radiation Model of

    When solar radiation passes through the atmosphere, it is scattered by various molecules and dust in the air and becomes absorbed by ozone, water vapor and carbon dioxide at a certain band of energy. Thus, when the radiation reaches the ground, the solar irradiance on the earth’s surface usually decreases to less than 1000 W / m 2.

    Solar reflective pavements—A policy panacea to heat

    2020-5-27 · The coated asphalt concrete reflected up to 130 Wm −2 (Sun Valley) and 168 Wm −2 (Pacoima) more shortwave radiation than regular asphalt concrete at solar noon (total incoming shortwave radiation: 1125 Wm −2). On average, daytime hourly reflected shortwave radiation increased by 118 Wm −2 and 144 Wm −2, respectively.

    Reflective Pavement May Be Less Cool Than It Seems

    2019-10-4 · The warmer feeling, Middel says, is almost entirely attributable to solar radiation reflected off the roads. Normally, asphalt sucks it in, and it dissipates slowly into the air.

    Solar Radiation IntechOpen

    2012-3-21 · The book contains fundamentals of solar radiation, its ecological impacts, applications, especially in agriculture, architecture, thermal and electric energy. Chapters are written by numerous experienced scientists in the field from various parts of the world. Apart from chapter one which is the introductory chapter of the book, that gives a general topic insight of the book, there are 24 more

    SOLAR IRRADIATION FUNDAMENTALS

    2017-1-25 · SOLAR ENERGY CONVERSION AND PHOTOENERGY SYSTEMS Vol. II Solar Irradiation Fundamentals Zekâi Şen 1.73x1014 kW and this is equivalent to 1.5x1018 kWh annually, which is equivalent to 1.9x1014 ton coal equivalent (tce). Compared to the annual world consumption of almost 1010 tce, this is a very huge and unappreciable amount. It is approximately about 10,000

    A New Aspect of Roadways Roads & Bridges

    2020-4-8 · Energy harvesting from roadways has the potential to generate electricity for a roadside data collection, communication applications, and safety equipment. Roadside energy harvesters are broadly grouped into three categories based on the energy source tapped: mechanical energy from vehicles, pavement heat, and solar radiation.

    Radiation and energy balance characteristics of

    2016-1-25 · Solar radiation and energy balance between the atmosphere and asphalt pavement directly affect the heat absorption of the pavement, resulting in a temperature increase and possible thawing of the permafrost beneath embankments in permafrost regions. The study area is located in the eastern side of the Qiangtang large continuous permafrost on the Qinghai-Tibet Plateau.

    [PDF] Asphalt solar collectors: A literature review

    Asphalt pavements subject to solar radiation can reach high temperatures causing not only environmental problems such as the heat island effect on cities but also structural damage due to rutting or hardening as a result of thermal cycles. Asphalt solar collectors are doubly effective active systems: as they solve the previously mentioned problems and, moreover, they can harness energy to be

    Energy harvesting from asphalt pavement using

    2018-8-24 · Although the intensity of solar radiation is less in the winter, the road surface temperature reached 30 oC due to the endothermic (heat absorption) effect of asphalt pavement, and the temperature difference between road surface and ambient air was up to 15oC. There were about 5 h when the temperature difference was above 10 oC. Thus, it can be

    HARVESTING ENERGY FROM ASPHALT PAVEMENTS AND

    2008-11-20 · A. The amount of solar radiation that reaches the pavement surface depends on: 1. The geographical location of the pavement 2. The specific day of the year 3. The presence or absence of cloud cover The solar radiation is often expressed in kWh/m2/day, for example 5 kWh/m2/day. If this

    Characteristics and application of road absorbing

    Tab.2 Road surface temperature, solar radiation intensity and outdoor temperature Fig.7 Temperature of solar road surface Oversloot H, de Bondt A, Jansen R, van Rij H. Design tool for the thermal energy potential of asphalt pavements. In: Proceedings of Eighth International Building Performance Simulation Association Conference. Eindhoven

    Low Temperature Transverse Cracking of Asphalt

    2017-1-4 · asphalt content, compactive effort, solar radiation and special additives on age hardening. Throughout this report the emphasis is on studying the causes and significance of low-temperature transverse cracking in West Texas. Some possible cures are

    Albedo of Pavement Surfacing Materials: In Situ

    2015-10-14 · solar exposition and under low wind conditions, the surface temperature of a new asphalt pavement with an albedo of 0.05, which means it reflects 5% and absorbs 95% of the solar radiation, can reach 50°C higher than air temperature (Synnefa et al. 2008).

    Radiation Control ORNL

    2021-5-11 · True solar radiation control coatings, with initial out-of-the-can solar reflectances greater than 0.75 and infrared emittances greater than 0.75, are generally white, water-based latex or acrylic products with titanium dioxide added to achieve high solar reflectance.

    Reflective Pavement May Be Less Cool Than It Seems

    2019-10-4 · The warmer feeling, Middel says, is almost entirely attributable to solar radiation reflected off the roads. Normally, asphalt sucks it in, and it dissipates slowly into the air.

    A New Aspect of Roadways Roads & Bridges

    2020-4-8 · Energy harvesting from roadways has the potential to generate electricity for a roadside data collection, communication applications, and safety equipment. Roadside energy harvesters are broadly grouped into three categories based on the energy source tapped: mechanical energy from vehicles, pavement heat, and solar radiation.