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Heating design and energy saving of large-space hangar

time：2023-09-20
hits：1452次
source：正弘奧能

For HVAC professionals, tall space is usually more complicated, and the main concern is the thermal load characteristics of tall space buildings.Because the height of the tall space is relatively high, the chimney effect is more obvious, resulting in the formation of a particularly large temperature gradient in the vertical direction, the heat is concentrated to the ceiling, and the working area can not meet the design requirements, in addition, the general area of the tall space is large, the difference in heat load between the internal and external areas is also large, such as the design is unreasonable, it will cause the indoor temperature field temperature distribution is not uniform.Affect the comfort of personnel in the heating area.


	 


	Tall space due to its own architectural characteristics, there are a variety of heating methods to choose.Designers and builders should determine the best and most reasonable heating scheme based on building functions and characteristics as well as municipal conditions.Among them, in the heating construction of the hangar, the gas radiation heating system can be completely used.


	 


	<img src="http://www.mhsc009.cn/Uploads/image/20230920/20230920171231_64604.png" alt="" /> 


	 


	It is recommended to use high-power gas radiation heating equipment for the heating of the hangar, because the characteristics of infrared radiation is to penetrate the air but not heat the air, indoor heating speed is fast, heat distribution is uniform, and the body feeling is comfortable and soft.In addition, considering that the external window of the hangar is not well sealed, and the indoor air temperature of gas radiant heating is 2 ~ 3℃ lower than that of convective heating, the heat consumption is small, and the temperature difference between indoor and outdoor is small, so the cold air permeability is also small, so the radiation heating method is used in the hangar heating, which is at least 30% more energy saving than the traditional heating method.


	 


	According to the Code for Fire Protection of Building Design: "The use of gas, liquid, solid as fuel or the combustion of gas, liquid for other purposes of various production" fire risk category belongs to Class D.And the high-power gas radiation heating system heat generator is set up outside the building, the system performance is very stable, therefore, the use of gas radiation heating will not increase the risk and design difficulty of the building.


	 


	<img src="http://www.mhsc009.cn/Uploads/image/20230920/20230920171302_26671.png" alt="" /> 


	 


	Gas radiant heating system uses clean energy such as natural gas and liquefied petroleum gas as heat energy.At present, the technology of gas radiation heating equipment is very mature, and it is completely feasible for the gas to be discharged directly to the outside after combustion, which meets the requirements of environmental protection.

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Heating design and energy saving of large-space hangar