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Energy-saving renovation and energy-saving heating design of large-space buildings

time：2023-08-14
hits：1621次
source：正弘奧能

Large-space buildings have the characteristics of large space area, high height and relatively small personnel activity area, etc. In winter heating, air distribution is extremely complex, hot gas flow rises under the action of buoyancy, high temperature air accumulates in the upper area where no people stay, and heat is directly lost to the outside through the roof.Because the lower part of the personnel activity area does not get enough heat, the temperature is obviously lower than the upper part, resulting in thermal stratification, resulting in serious heat dissipation in the upper space, causing unnecessary waste of energy.


	 


	It is impossible to talk about energy saving of tall space buildings without studying radiation heating. Building energy saving here includes both energy saving of building construction and energy saving of building use stage.That is to say, it includes both the design technology of the building (optimized design) construction technology, building products, building materials energy saving, but also the heating method energy saving.


	 


	Under the premise of ensuring the heating effect of users, factors such as operation economy, reliability, safety and investment rationality are considered.As an energy-saving heating and heating method, radiation has the advantages of energy saving and environmental protection, uniform heating, quiet operation, convenient operation and maintenance.


	 


	Radiant heating rational use of natural gas or hot water and other clean energy, through the end radiation system to achieve winter radiant heating, of which the hot water radiant template system has been successfully applied in the ground radiant heating engineering practice.The hot water radiant formwork system 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.


	 


	<img src="http://www.daanda.com.cn/Uploads/image/20230814/20230814115443_91933.png" alt="" /> 


	 


	During radiant heating, the hot surface emits heat to the inner surface of the maintenance structure and indoor facilities, and the radiant heat is partly absorbed and partly reflected, and the part reflected to the hot surface also generates secondary radiation, which is eventually absorbed by the envelope structure and indoor facilities.Compared with convection heating, radiation heating improves the inner surface temperature of the enclosure structure (higher than the temperature of the room air), so it can reduce the water supply temperature compared with other heat dissipation facilities, achieve energy saving, and create a favorable thermal environment for the human body, reduce the radiation heat exchange of the human body to the inner surface of the enclosure structure, and increase comfort.


	 


	Hot water radiant formwork system uses hot water as heat transfer medium and does not increase building fire rating.It can be used in volatile and flammable built environments without the risk of fire and explosion and can be integrated into a variety of ceiling solutions.When properly installed, hot water radiant panels require little maintenance because they have no moving parts and can be kept in place without the need for dedicated personnel to manage and maintain them.This makes hot water radiation templates especially useful in high-traffic areas such as busy airport sidewalks or stadiums.

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Energy-saving renovation and energy-saving heating design of large-space buildings