Model Experimental Study of Carbon Fiber Heating Wire for Deicing and Snow Melting on a Bridge Deck

Yan, Tan; Zhu, Yun-Tao; Xiao, Henglin

doi:10.1155/2020/8861468

Cited by 5 publications

(3 citation statements)

References 18 publications

(19 reference statements)

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“…Researchers have conducted a series of studies on the application of carbon fiber heating lines in snow and ice melting under different conditions. Yan Tan et al [20] determined that carbon fiber heating lines can effectively prevent bridge deck icing through temperature rise tests on bridge decks and found that optimized layouts can improve the efficiency and overall uniformity of bridge deck ice melting. Chunming Li and Dengchun Zhang et al [21,22] conducted a temperature rise test on a bridge deck.…”

Section: Introductionmentioning

confidence: 99%

Experimental Study on Ice Melting of Bridge Tower Crossbeams under Different Conditions

Zhi

Mao

et al. 2023

Applied Sciences

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The bridge tower beams of long-span bridges freeze during winter. The accumulated ice on the beam flakes off and falls into the bridge deck from a high altitude with temperature rise, threatening traffic safety. To solve this problem, an electric heating method is used to melt the snow and ice on bridge tower beams. A design scheme based on embedding carbon fiber heating wires in a bridge tower beam is proposed in which electrical energy is converted into heat energy to melt the snow and ice on the beam. In this paper, a beam icing test and beam de-icing test are carried out through a laboratory model test. The model test results show that under the conditions of a wind speed of 4.5 m/s and an ambient temperature of −15 °C, the average internal temperature of the beam after heating stabilization is 1.37 °C; this is higher than the average critical temperature of 1.31 °C. This temperature is sufficient to melt the ice and proves the practicability of this method. The de-icing method of embedded carbon fiber heating is simple, efficient, and environmentally friendly. This can provide a reliable reference for the practical application of de-icing a bridge beam.

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Section: Introductionmentioning

confidence: 99%

Experimental Study on Ice Melting of Bridge Tower Crossbeams under Different Conditions

Zhi

Mao

et al. 2023

Applied Sciences

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“…e manual method [3] cannot be applied in a large area due to the high labor cost and low removal e ciency. e mechanical method will cause a certain degree of damage to the bridge deck due to its high gravity, and due to the subsequent maintenance cost being high, it cannot be widely used [4]. In addition, the use of snow-melting agents causes irreversible damage to the environment, buildings, and vegetation, so it is not vigorously promoted for use [5].…”

Section: Introductionmentioning

confidence: 99%

Influencing Factors of Snow Melting and Deicing on Carbon Fiber Embedded in Bridge Decks

Yan

Zheng

Xiao

et al. 2022

Advances in Civil Engineering

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To study the general law of the influence of embedded carbon fiber heating wires on the melting of snow and ice on bridge decks and to solve the problem of icing on large bridges in winter, relevant model tests were carried out. In this experiment, a carbon fiber heating wire was used as the heat source to make a large-scale asphalt concrete bridge deck model with a built-in carbon fiber heating wire. The effect of different heating powers, ambient temperatures, snow and ice thicknesses, and wind levels on the melting of snow and ice on bridge decks was studied. The snow-melting and ice-melting tests performed at different heating powers show that as the heating power increases within a certain range, the time required for the snow and ice layers to melt and the power consumption decrease. Under certain conditions, to ensure the rapid melting of snow and ice layers on the surface of road bridges, a heating power of 400 W/m2 is selected. At this time, the heating effect is the best, and this method is economical and practical. The snow-melting and ice-melting tests performed at different ambient temperatures and with different thicknesses of the snow and ice layers show that as the ambient temperature decreases or the thickness of the ice layer increases within a certain range while keeping the other factors constant, the time required for the snow to melt and the power consumption increase, and the power consumption is relatively large. The snow-melting test performed at different wind levels shows that with the increase in the wind level within a certain range while keeping the other factors constant, the uniformity of the overall temperature distribution on the surface of the specimen worsens, the snow-melting time increases, and the temperature rises. The rate of temperature increase decreases. Therefore, in actual engineering applications, when the wind speed is too high, the methods of manually or mechanically removing snow can increase the snow removal rate on bridge decks. Under different conditions, choosing the right heating power can effectively improve the efficiency of melting snow and ice on bridge decks. The research results of this paper provide a theoretical reference for the actual construction of bridge decks in the future.

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“…is method can be divided into cable-heated pavement [18], conductive concrete pavement [19][20][21], carbon fibreheated pavement [22,23], and so forth. Cable-heated pavement has a low power conversion rate, is easily damaged, and consumes considerable energy.…”

Section: Introductionmentioning

confidence: 99%

Experimental Study on the Influence of Buried Geothermal Pipes on the Temperature Field of Concrete Roads

Yan

Song

Zhi

et al. 2021

Advances in Civil Engineering

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Snow removal is a critical security issue for concrete roads, but geothermal methods can be an environmentally friendly and efficient alternative to traditional approaches for snow removal. In order to obtain fully the change rule of the temperature field of the concrete road under geothermal conditions, observe the relationship between temperature rise and time, and better apply the geothermal buried pipe technology to road snow and ice melting, two concrete road models with the dimension of 1 m × 2 m × 0.45 m are made. The model experiments are carried out under the conditions of 0.8 m/s, 0.85 m/s, and 0.9 m/s of pipeline flow velocity, 15 cm and 25 cm of buried pipe depth, and 10 cm and 15 cm of pipe space. The influence of flow velocity, the buried pipe depth, and space on the internal and surface temperature field of concrete road is studied. The results show that, in the flow velocity test, the temperature of the four-layer measuring points shows an upward trend under different flow velocities. With the increase of initial flow velocity, the temperature rise of the first layer measuring points gradually increases. The temperature rise value of the first layer corresponding to 0.9 m/s is 11.66°C, 4.32°C, and 3.13°C higher than 0.8 m/s and 0.85 m/s, respectively; in the buried depth test, the first layer temperature rise at 15 cm is 1.85°C higher than that at 25 cm; in the space test, when the buried pipe space increases from 10 cm to 15 cm, the temperature rise value of the first layer decreases by 1.2°C. From the above three influencing factors experiments, it can be obtained that the temperature rise stage of the first layer measuring points can be divided into the rapid temperature rise stage within 0–2 hours, the temperature rise one with 2 h–6 h, and stable temperature stage after 6 h. Experimental observation shows that road temperature will be higher than 8°C within 1 h–1.2 h, which can eliminate the road icing temperature conditions to ensure that the road does not freeze. After opening the snow melting system for 6 h, the surface temperature of the road tends to be stable, and there is no significant change. In practical application, open the system 1.5 h in advance so that it can prevent road snow and freezing. After opening the system for 6 h or stopping snowfall and rainfall within 6 h, close the system, and the residual temperature stored in the concrete road is used for deicing and snow melting. Ensuring that the road surface temperature is above 0°C, the heating system is turned on intermittently to save energy. The research provides theoretical support for preventing road snow and freezing.

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Model Experimental Study of Carbon Fiber Heating Wire for Deicing and Snow Melting on a Bridge Deck

Cited by 5 publications

References 18 publications

Experimental Study on Ice Melting of Bridge Tower Crossbeams under Different Conditions

Experimental Study on Ice Melting of Bridge Tower Crossbeams under Different Conditions

Influencing Factors of Snow Melting and Deicing on Carbon Fiber Embedded in Bridge Decks

Experimental Study on the Influence of Buried Geothermal Pipes on the Temperature Field of Concrete Roads

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