The influence of heat flux on melting ice on concrete pavement with carbon fibre heating wire

Lai, Yong; Liu, Y; Su, Xin; X, D; P, Wang

doi:10.1088/1757-899x/392/2/022021

Cited by 7 publications

(6 citation statements)

References 5 publications

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“…e conventional methods of removing ice and snow by using airport pavement deicing fluid and deicing equipment induce flight delay and need a lot of manpower, deicing fluid, and machinery. It is necessary to conduct timely and high-efficient removal of ice and snow to avoid the adverse effect of deicing fluid and machinery on the airport asphalt pavement [1]. Some scholars study how to improve the performance of bitumen and asphalt mixture to avoid negative effect [2][3][4].…”

Section: Introductionmentioning

confidence: 99%

“…At the same time, some methods of deicing and melting snow on the pavement have been researched, such as asphalt mixture containing the snow-melting agent [5], hydraulic heating system [6][7][8][9][10], electrically conductive concrete [11][12][13], carbon fiber grille [14], and CFHW [15][16][17][18][19]. e recent research of deicing and melting snow on the pavement mainly focuses on the CFHW [1]. Zhao et al studied deicing on the bridge deck and concrete pavement by the CFHW [15,16].…”

Section: Introductionmentioning

confidence: 99%

“…In frozen and snowy weather, the results of laboratory and field experiments verified the validity of the electrothermal method of deicing and melting snow on the pavement and bridge deck under an appropriate input power. e authors studied the effects of heat flux, wire spacing, wind speed on the concrete pavement temperature, and deicing on the cement concrete pavement by the CFHW [1,17,18]. e authors also studied the snow-melting effect, temperature, and energy distribution along the depth of the airport cement concrete pavement [19].…”

Section: Introductionmentioning

confidence: 99%

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Research of Deicing and Melting Snow on Airport Asphalt Pavement by Carbon Fiber Heating Wire

Su¹,

Lai²,

Yan³

et al. 2020

Advances in Materials Science and Engineering

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In the paper, the method of deicing and melting snow by the carbon fiber heating wire (CFHW) embedded in the airport asphalt pavement is proposed to improve the security of airport operation. The field experiment of deicing and melting snow on the airport asphalt pavement is conducted. Deicing and melting snow, asphalt pavement temperature, ice-free area ratio, and snow-free area ratio are analyzed. Electrical power with 350 W/m2 is input to the airport asphalt pavement for deicing and melting snow by the CFHW. In the experiment, 3 mm ice can be melted, and the average infrared ray temperature (IRT) of the airport asphalt pavement surface can achieve an increment of 13.0°C in 2.5 hours when the air temperature is from −7.5°C to −2.2°C. Snow with 3.2 mm precipitation can be melted in 2 hours when the air temperature is from −4.8°C to −3.5°C, and the asphalt pavement temperature can achieve an increment of 5.9°C at the depth of 0.5 cm. The results show that the method of deicing and melting snow on the airport asphalt pavement by the CFHW is practicable in the cold zone.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Research of Deicing and Melting Snow on Airport Asphalt Pavement by Carbon Fiber Heating Wire

Su¹,

Lai²,

Yan³

et al. 2020

Advances in Materials Science and Engineering

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“…Liu et al [10] proposed two thermal field prediction models of ice-snow melting pavement. Lai et al [11] presented a method of melting ice with carbon fiber heating wire buried in concrete pavement to avoid the adverse effects of snow melting chemicals. Overall, the method of electric heating responds fairly quickly to snowfall, but it is expensive to install and maintain.…”

Section: Introductionmentioning

confidence: 99%

Numerical Study on Optimal Scheme of the Geothermally Heated Bridge Deck System

Lyu

Chen

et al. 2020

Energies

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Ground source deicing system application in bridge decks is an alternative to salt use, which reduces corrosion and extends the deck service life. Herein, a preliminary parametric numerical analysis is performed to investigate the effects of several important parameters (tube spacing, inlet temperature, flow rate, and concrete cover) on heat transfer performance. Three evaluation indexes (average top surface temperature, snow melting proportion, and heat absorption power) are introduced, and a synthetic evaluation index is proposed to comprehensively consider factors. Mainly referring to the synthetic evaluation index, the optimal design scheme of a geothermally heated bridge deck system under various conditions (layout, lane number, ambient temperature, and tube spacing) is obtained and analyzed to determine the optimal inlet temperature and guide heated bridge deck design. Finally, the influence of wind speed and two adjustment methods are studied. The results indicate that the horizontal layout is the recommended circulating tube layout. The established empirical equations reveal that the optimal inlet temperature is linearly related to ambient temperature and exhibits a quadratic relationship with tube spacing. There is no need to add a heat insulation layer at the bridge deck bottom, and only tubes arranged near the wheels in lanes are recommended.

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“…The higher the snowfall rate, the more the surface temperature decreased. Laboratory tests performed by Lai et al indicate that when the air temperature is −5°C, the time of deicing using heating wire to melt the ice on concrete pavement increases with wind speed as a result of more convection heat being lost on the pavement surface ( 15 ).…”

mentioning

confidence: 99%

Feasibility of Bridge Deicing Using Geothermal Energy Piles in Different U.S. Climates

Xiao

Suleiman

Neti

et al. 2022

Transportation Research Record: Journal of the Transportation R

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Geothermal energy piles are an environmentally friendly energy source and an innovative approach to melt snow on the bridge surface and minimize or eliminate the use of deicing salt. However, the application potential of energy piles for bridge deicing or snow melting has not been fully explored for different climates. In this study, the feasibility of using energy piles for bridge deicing in eight cities of the United States was investigated. Temperature response function (G function) method was validated and used to estimate the extracted heat from energy piles installed in the soils with different thermal properties, which was used to heat the bridge deck during snowing. The results of numerical simulation and statistical analysis confirm that the performance of the geothermal deicing system depends on the weather conditions during snowing and thermal properties of soils. The coverage rate of the geothermal system (percentage of snowing time that the geothermal deicing system can keep the bridge surface above 0°C) increases with the increasing air temperature and thermal diffusivities of soils, and decreases with the increasing precipitation rate and wind speed. This deicing method is promising in cities with higher average air temperature and low precipitation rate during snowing.

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The influence of heat flux on melting ice on concrete pavement with carbon fibre heating wire

Cited by 7 publications

References 5 publications

Research of Deicing and Melting Snow on Airport Asphalt Pavement by Carbon Fiber Heating Wire

Research of Deicing and Melting Snow on Airport Asphalt Pavement by Carbon Fiber Heating Wire

Numerical Study on Optimal Scheme of the Geothermally Heated Bridge Deck System

Feasibility of Bridge Deicing Using Geothermal Energy Piles in Different U.S. Climates

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