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Case analysis of hot water infrared radiation heating for building with large space -1

time：2023-05-26
hits：1697次
source：正弘奧能

Buildings with space height greater than 5m and volume greater than 10,000 square meters are called tall space buildings.In terms of public civil buildings, it mainly refers to theaters, concert halls, city halls, gymnasiums, exhibition halls and other buildings.In addition, industrial buildings also exist such large workshops, factories.


	 


	Due to the high ceiling and large volume of the tall space, the heat generated in the room rises upward and accumulates a lot of heat under the ceiling, resulting in a large vertical temperature gradient in the whole space and temperature stratification.The outer wall and floor area of the tall space is relatively large, resulting in the external interface has a great influence on the natural convection of the interior space, and it is easy to cause cold air flow down around in winter;Due to the density of personnel and equipment in the residence area, the heat dissipation of the ground part accounts for a larger proportion of the total load.Usually, the cooling load composition of tall space is: human heat dissipation accounts for 50% -- 80%, lighting heat dissipation accounts for 2.5% ~ 11%, enclosure structure accounts for 7.9% -- 26.5%, outdoor air intrusion heat accounts for 9.5% ~ 11.2%.


	 


	The heating scheme design of the tall space takes into account the function of the site.Hot water radiant plate is a kind of metal radiant plate, can be used for the height of 3m~30m building comprehensive heating and local area or local working place heating, its use range is very wide, including large dock, ship, aircraft and automobile maintenance hall, building materials market, shopping center, exhibition venue, multifunctional gymnasium and entertainment hall and many other tall space places.


	 


	<img src="http://www.mhsc009.cn/Uploads/image/20230526/20230526180737_83056.png" alt="" /> 


	 


	Energy saving 


	In the radiant heating environment, because the indoor air temperature is 2-3k lower than that in the convective heating system, it can still achieve environmental comfort, so energy saving.Building maintenance structure (walls and floors) is directly heated by infrared ray, higher than air temperature, air temperature difference, the formation of secondary heat dissipation, there is a certain insulation performance, so energy saving.


	 


	Low operating cost 


	Hot water radiant plate as the end heat dissipation equipment, no electromechanical parts, no electricity consumption, almost maintenance-free operation, save operation costs.


	 


	The payback period is short 


	Hot water radiant panel heating system is mainly manifested in high initial investment, but its energy saving after operation is obvious, the higher investment part can be compensated by energy saving in a few years.


	 


	Safe and reliable 


	Hot water radiant panel heating system heating water system, low temperature and pressure, does not increase the fire rating of the building, can be used in volatile and flammable building environment, without causing the risk of fire and explosion.


	 


	<img src="http://www.mhsc009.cn/Uploads/image/20230526/20230526180752_51846.png" alt="" /> 


	 


	Example of hot water infrared radiation heating technology application -- BMW Brilliance Shenyang Logistics Distribution Center Project 


	 


	Project Overview: 


	The project is located in Dapan Town, Tieci District, Shenyang. The two single-storey warehouses RDC1 and RDC2 have a building area of 15,400 square meters and 10,300 square meters respectively, with a height of 12.3 meters. The RDC1 warehouse has three attic shelves, and the RDC2 warehouse has 7.4 meters high shelves.Similar to the selection of BMW factory in Regensburg, Germany, this project also uses ECOPAN (Icopan) infrared hot water radiation panel, which not only meets the heating needs of the warehouse but also ensures the safety, quiet, comfortable and beautiful warehouse.The high quality of ECOPAN infrared hot water radiant panel has been praised by the German and Chinese management of BMW.


	 


	Features of the project: 


	1. The warehouse building falls short of height.


	2. The project is located in the severe cold region of Northeast China, where the average daily temperature is low, the temperature difference between indoor and outdoor is large, and the heating load of the building is large in winter.


	3. The temperature gradient in the building is large, and the air stratification is more serious, which leads to the upper heat and the lower cold, so that the roof heat dissipation is faster.


	4. The door of the building is opened frequently, and the cold air incurs great heat consumption.


	 


	The project selected ECOPAN infrared hot water radiation panel 5584 meters, fully reflects the advantages of hot water radiation heating equipment in the application of tall space.


	 


	Hot water radiation plate, has the advantages of simple and light structure, high thermal efficiency, convenient installation, low initial investment and operating costs, simple operation, high intelligence, no noise, environmental protection and clean.It can be inferred from the good application effect of BMW Brilliance Shenyang Logistics Distribution Center project that hot water infrared radiation heating technology should have broad application and development prospect in the heating field of tall space buildings.

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Case analysis of hot water infrared radiation heating for building with large space -1