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In large space buildings, why is gas radiant heating more energy-efficient?

time：2025-03-03
hits：299次
source：正弘奧能

At present, some large-span industrial workshops and large-span public buildings have large amounts of cold air infiltration and large temperature gradients. They have higher requirements for indoor temperature and comfort. Traditional heating methods are difficult to meet these demands. However, the gas radiant heating system has the advantages of high efficiency, fast heat effect, uniform heating, and high comfort level. It can efficiently address the heating needs of large-span spaces. 
 

	During convective heating, the indoor air is heated and a convection of hot and cold air forms. As a result, the indoor air temperature has a large gradient. The temperature at the roof part is high while that near the ground is low. In contrast, in gas radiation heating, radiant heat radiates directly downward and the heat is transported directionally. Therefore, the temperature gradient of the indoor air is smaller and the heat loss in the upper part of the building is also smaller. When the indoor air temperature is the same, radiant heat radiates directly to the heating object. The perceived temperature of radiant heating is 2-3℃ higher than that of convective heating. That is to say, under the condition of ensuring the same perceived temperature of the indoor air, the indoor air temperature of radiant heating is 2-3℃ lower than that of convective heating. Radiant heating consumes less heat and has a smaller temperature difference between indoors and outdoors, so the cold air infiltration is also very small. Therefore, the heat load is lower and it is more energy-efficient. 


	 



	<img src="http://www.sylyby.cn/Uploads/image/20250303/20250303104224_15462.jpg" alt="" /> 


 
IMPRESIND gas infrared radiation heating system promoted and sold by Beijing Leadway Power&nbsp;Co., Ltd. has an independent heater installed outside the building, and the radiation pipe section is placed above the heating space. The radiant heat radiates directly downward, resulting in a small temperature gradient in the indoor air and low heat loss. It ensures comfort while reducing energy consumption and achieving the goal of energy conservation. Its control system can be controlled independently or remotely centrally. The intelligent LCD centralized control box can control multiple sets of equipment and can be connected to the software of a computer. The automatic control and temperature adjustment are convenient and flexible, allowing for zone temperature control, thereby reducing energy consumption. 
 

	The generator of IMPRESIND gas radiation heating system adopts a dual fan design with a micro-positive pressure and negative pressure system. The micro-positive pressure fan can ensure the stability of the flame and prevent the flame from overflowing. The negative pressure fan can effectively elongate the flame in the radiation tubes to ensure the combustion efficiency. Meanwhile, the flue gas recirculation technology of the system greatly improves the heating efficiency of the equipment, shortening the indoor heating time by 25% to 50%; the energy utilization efficiency is higher, and the overall energy saving can reach 30% to 50%. 


	 



	<img src="http://www.sylyby.cn/Uploads/image/20250303/20250303104213_81727.jpg" alt="" /> 


 
The insulation conditions for the maintenance structure of high-rise space buildings are not very demanding. Gas radiant heating systems can heat up high-rise spaces and semi-open spaces, while convective heating cannot achieve this. Heat transfer has strong directionality and can be flexibly arranged according to different needs. It can be comprehensive heating or local heating in a relatively large local space.

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In large space buildings, why is gas radiant heating more energy-efficient?