Efficient energy utilisation with electrical trace heating

　　In modern industry and many infrastructure fields, heat tracing technology is the key to ensure the normal operation of various pipelines and equipment. Among them, electric accompanying heat, as an advanced accompanying heat method, shows many advantages in energy utilisation. The following describes in detail the electric accompanies the heat compared with the traditional accompanies the heat, its in the heat dissipation area, the heat exchange efficiency, the heat transmission loss, the accurate temperature control as well as the comprehensive benefit and so on the superiority

　　First, the electric accompanies the heat and the traditional accompanies the heat way in the energy utilisation the comparison (A) the heat dissipation area and the heat consumption the traditional steam or the hot water accompanies the heat to have the some energy utilisation on the disadvantage. For example, the steam or the hot water accompanies the heat pipe in the laying always to expand the heat dissipation area of the heat preservation layer, thus increases the heat dissipation. And the electricity accompanies the heat product general shape size small, laying will not change the pipeline heat preservation layer shape, the heat consumption quantity is relatively lower, helps to improve the energy utilisation efficiency

　　(2) The heat exchange efficiency The heat exchange efficiency is the measure accompanies the heat way the energy utilisation effect the important index. Steam or hot water accompanies the heat pipe and the process pipeline only between the line contact, its heat transfer efficiency is generally 40% - 60%. In contrast, electric heat tracing products are flat, with the help of aluminium tape to form a wide heat exchange surface, heat exchange rate of up to 90% - 96%. This means that electric heat tracing is more efficient in converting energy into effective heat tracing, and can make full use of electric energy to achieve the heating of piping or equipment and reduce energy waste

　　(3) Superheat compensation and heat transmission loss When steam or hot water heat tracing is used, in order to ensure the temperature of the far point of the pipeline, as well as to consider the transmission of heat loss and leakage along the way, it is necessary to superheat the compensation of the proximity point. However, this superheat compensation results in additional energy consumption, as more heat needs to be supplied to meet the demand at the far point. In contrast, electrical trace heat does not require superheat compensation because it radiates heat uniformly over the entire length of the line. In addition, steam and hot water heat transfer losses are much greater than electrical energy transfer losses, especially when the heated pipe is farther away from the heat source, and there are many losses of steam or hot water along the line, while there are fewer power transfer losses. Therefore, the electric accompanies the heat in the heat transmission process energy loss is relatively small, more favourable to the effective use of energy.

　　Second, the electric accompanies the heat the accurate temperature control and the energy saving Ideal accompanies the heat pipeline to require all year round accompanies the heat even every day and night accompanies the heat to change with the air temperature change. Electricity accompanies the heat to have the unique advantage in this aspect, it can through the temperature control system to strictly track the temperature to achieve the required heat. Steam or hot water is extremely difficult to ensure such precise temperature control. For some process pipelines with strict temperature control requirements, electric trace heat can not only save energy, but also ensure the process requirements. Through the accurate temperature control, the electricity accompanies the heat to avoid the excessive heating or the situation of insufficient heating, makes the energy use just right, maximally improves the energy use efficiency.

　　Third, the electric accompanies the heat in the energy utilisation comprehensive benefit In addition to the direct energy consumption shows the advantage, the electric accompanies the heat also can bring other energy related benefit. For example, electric accompanying heat can save steel. Steam or hot water accompanied by heat pipe is usually a come and go double pipe, plus be accompanied by the pipe then there are three pipelines, the use of electric accompanied by heat can be cancelled two accompanied by heat steel pipe. This indirectly reduces the energy consumption in the steel production process, from the perspective of the whole industrial chain, helps to improve the comprehensive utilisation efficiency of energy.

　　To sum up, the electricity accompanies the heat in the energy utilisation has the significant advantage. Compared with the traditional steam or hot water accompanying heat, it performs well in many aspects such as heat dissipation area, heat exchange efficiency, heat transmission loss, precise temperature control and comprehensive benefit. With the continuous growth of energy demand and the improvement of the requirements of energy use efficiency, the electric accompanying heat technology will be widely used in more fields, and make greater contribution to the realisation of efficient and sustainable energy use.