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Compared with convection heating, gas radiant heating is more suitable for heating large Spaces

time：2025-04-27
hits：573次
source：正弘奧能

Due to the large span, high void, large area of doors and Windows, and high heat transfer coefficient of the envelope structure, the choice of heating method for high and large Spaces is of vital importance. If convection heating is used in high-space buildings, it is difficult to arrange it in rooms with large spans. Many radiators are placed on the walls of some industrial plants, and heating is provided through natural convection. This heating method has a relatively large temperature gradient between the upper and lower Spaces within the building. For instance, when it reaches 0.5℃/m to 1.0℃/m, the air temperature under the roof can be as high as 32℃. However, in the working areas where people stay below 2 meters, the air temperature distribution is highly uneven, with some areas having a temperature of only 3℃ to 5℃. This heating method not only wastes energy but also has poor comfort.


	 


	<img src="/Uploads/image/20250427/20250427104523_84768.jpg" alt="" /> 

 
In addition, when using steam or hot water boilers for heating, if small boilers are set up, the heat loss of the external network's hot coal transportation is 5%, and the heat loss of the internal network and equipment is 10%. However, by adopting the gas radiant heating method, the step of converting high-temperature flue gas into low-temperature hot coal (steam or hot water) thermal energy is reduced, and the overall efficiency can reach over 90%. It has relatively low thermal inertia, resulting in less ineffective heat loss. At the same time, it significantly reduces the amount of ineffective heat supply, greatly enhancing thermal efficiency. This heating method is particularly suitable for heating large Spaces. 
 

	Compared with the traditional convective heating method, it can achieve an energy-saving rate of 30% to 50% during one heating period. After comprehensive comparison, the gas radiant heating method is more energy-efficient and greatly reduces the operating cost of the system. Radiant heating is more energy-efficient than convection heating, with an energy-saving rate that can reach 30% to 60%.


	 


	<img src="http://m.daanda.com.cn/Uploads/image/20250427/20250427104505_61650.jpg" alt="" /> 

 

	IMPRESIND gas infrared radiation heating system, promoted and sold by Beijing Leadway Power Co., LTD., directly radiates radiant heat downward, and the ground can also accumulate some heat. The indoor air temperature gradient is small, and the heat loss is low. Under the premise of ensuring comfort, it reduces heat energy consumption and achieves the purpose of energy conservation. Its control system can achieve independent control or centralized remote control. The intelligent LCD centralized control box can control multiple groups of devices and can be connected to the software of a computer. The automatic control and temperature adjustment are convenient and free, and it can achieve zonal temperature control. It can heat large Spaces on demand, which is something that convection heating cannot achieve.

 
By adopting IMPRESIND gas radiant heating system, the design plan can be tailored to the characteristics of high-space industrial plants and the specific needs of customers. It is highly suitable for heating in high-space buildings such as industrial plants, aircraft, auto repair garages, logistics centers, large warehouses, multi-functional stadiums, and exhibition venues. According to the heating demands of factories in northern regions, the heating temperature in workshops is usually set at 12 to 15 degrees Celsius during working hours, and operates at a low temperature (5 degrees Celsius) or is directly shut down during non-working hours.

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Compared with convection heating, gas radiant heating is more suitable for heating large Spaces