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Case analysis of hot water infrared radiation heating for building with large space-3

time：2023-06-09
hits：1792次
source：正弘奧能

At present, the choice of tall space heating method has been a controversial topic, and the range of tall space places is also very wide, involving factories, warehouses, large stadiums, exhibition halls, etc., and most of the heating of these tall space buildings will choose between the traditional heating method (radiator) and the new heating method of tall space air conditioning.


	 


	When the traditional convective heating method is used, the indoor air is heated, and the convection of hot and cold air is formed, so the indoor air temperature has a large gradient, the temperature of the roof part is high, and the temperature near the ground is low. The general convective heating temperature gradient is about 0.5-1.0℃/ meter, and when the new radiation heating method is used, the radiant heat directly radiates downward.The ground part can also store some heat, so the indoor air temperature gradient is small, and the corresponding heat loss in the upper part of the building is also small.


	 


	<img src="http://www.b9w.net/Uploads/image/20230609/20230609160427_80672.png" alt="" /> 


	 


	As a new type of radiant heating, the hot water radiant panel can be used for comprehensive heating of buildings with a height of 3m~30m and local area or local workplace heating, and its use is very wide, including large shipyards, ships, aircraft and automobile maintenance halls, building materials markets, shopping centers, exhibition venues, multi-functional stadiums and entertainment halls and many other occasions.


	 


	Hot water radiation panel in the process of hot water circulation, through the radiation surface of the medium heat into various wavelengths of infrared radiation and irradiation into the heating environment, due to the small absorption of infrared air, most of the infrared is absorbed by buildings, human bodies, equipment and other objects, energy storage, temperature rise, while heating the air around it, so that the ambient temperature rise.Therefore, the air temperature in the building is lower than the object temperature in the infrared irradiation area (generally 2-3 degrees lower), so the air stratification and convection effect are reduced, the heating system has a high utilization rate of heat energy and good comfort, and a large number of project applications at home and abroad show that the technology is the ideal heating method for tall space.


	 


	Example of hot water infrared radiation heating technology application - Harby Budweiser Beer Museum 


	 


	Project Overview: Harbin Beer Museum is a review and exhibition of Harbin beer, the development of Harbin urban industry and the development of China's beer industry. It has a larger investment and scale in the domestic industry, and uses innovative high-tech and multimedia devices to interact with profound beer heritage and cool brand experience.


	 


	Project features: 


	1. 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.


	2. The heat transfer coefficient of the enclosure structure is large, and the heat required is large.


	 


	<img src="http://www.b9w.net/Uploads/image/20230609/20230609160522_12513.png" alt="" /> 


	 


	Harbin Beer Museum has three floors, all of which use ECOPAN hot water radiant panel heating system promoted and sold by Beijing Leadway Power Co., LTD. The single-floor building area is 2750 square meters, and the total area of three floors is 8250 square meters.The hot water source is drawn from the atmospheric hot water boiler in the factory, and the supply water temperature is 70°C and the return water temperature is 50°C in the museum.The hot water radiant panel is arranged in the designated heating area.The interior roof is embedded horizontally, with a height of 4-6 meters and a partial height of 16 meters.The indoor design temperature in winter is 18℃.

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Case analysis of hot water infrared radiation heating for building with large space-3