Road Heating-Effective Technique in Winter
Road heating is the process of melting ice and snow by passing an electric current through a metal alloy ribbon placed on the roadway. The electrically charged ribbons emit enough heat to melt ice in about 15 minutes. The heating element ribbons can be turned on and off depending on the temperature of the surrounding terrain. The heated concrete remains at a constant temperature of 40 degrees even in extreme winter temperatures. In fact, the technology is already proving its worth in colder regions like Canada.
It is easy to install road heating cables. First, a base layer of asphalt is laid on the roadway. The heating cables are then installed on the asphalt layer. The second layer of asphalt is placed over the cables to embed them into the sub-surface slab. A control system is installed on each end of the cable, ensuring that the system only powers up when it is needed. Once the entire system is installed, it must be maintained and checked regularly.
The heating process involves external and in-situ means for raising the temperature of road-building materials. In-situ heating is also possible. This method uses geothermal energy to pump warm groundwater. The warmer groundwater is pumped to the surface beneath the asphalt. In addition to preventing ice from forming on the street, it can also prevent road damage in extreme summer. The heat generated in this process allows the roadways to be heated to a temperature below freezing.
Road heating is an important part of the construction process.
It is essential to have the appropriate heating equipment to make roads safe and durable. It is important to use heat-resistant asphalt in the winter and if the pavement is in an area where heavy snow is common, it must be covered with a heat-resistant barrier. In addition to preventing ice, the road must be heated during the summer months to avoid deterioration. It must be dry before it can be paved.
A thermal insulation material can be laid under heating cables to avoid downward diffusion of heat. This helps keep the heat on the road surface and prevent it from escaping. The simulation results were found to be in good agreement with experimental findings. This demonstrates that the model is a reliable and rational one. Further, the reference values were high and the errors were minimal. The benefits of road heating are well-defined. It is a cost-effective solution for the heating of roads.
The research is intended to show that road heating is effective in reducing fuel consumption and maintenance costs. In addition to preventing ice and snow buildup, this technology can also be used to keep roads open during extreme winter weather. In contrast to mechanical snow removal, road heating is an effective solution. It is an efficient way to heat up roads that is environmentally friendly and does not interfere with traffic. In fact, it is the most cost-effective method of road heating.
The climate data from Ostersund, Sweden, was chosen for the test site.
Currently, the system is being tested for several years. It is currently under development. It is designed to be installed in winter and will be operational by 2017. Because Iceland has an unlimited amount of geothermal energy, it can be applied to roads.
In this study, temperature differences between different areas of the pavement were measured. In each region, the temperature of the road was high and low, forming a saddle-shaped distribution. This heat gradient was largest on the outer surface of the cable, and the smallest temperature was close to the road surface. The road surface was uniformly heated throughout, which helped to determine the temperature of the road. The measurements confirmed the model’s accuracy and precision. It can improve road safety by lowering the cost of road salts and snow-plow services.
To evaluate the effectiveness of HHP systems, researchers used climate data from Ostersund, Sweden. The city is constructing an HVAC system in 2017 to reduce ice and snow on the roads. When temperatures were low, the system was assumed to start heating the roads and stop it. The temperature difference on the road was 0.28 degC. The new temperature of the road was calculated according to this temperature. It also prevented accidents caused by icy conditions. It can also be applied on footpaths and driveways.