As for radiation, Wang Baolong, an associate professor in the Department of Building Technology of Tsinghua University, pointed out that the word "radiation" appeared in floor heating to emphasize that its main heat transfer mode is "radiation heat transfer", which is different from the radiation that people pay attention to every day.
Everything above absolute zero (-273. 15℃) has radiation, and the radiation produced by thermal effect in life has little influence on human body, which can be basically ignored. In this way, heating radiation will not cause harm to human body.
Chen Liping, a professor at the School of Urban Construction and Safety Engineering of Nanjing University of Technology, said that there will be radiation heat transfer between solid surfaces with temperature difference, which is a way of heat transfer. It is impossible to say that the thermal radiation in the liquid circulation system will cause vision problems, such as cataracts.
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Advantages of floor heating
① Comfort, sanitation and health care: radiant floor heating is the most comfortable heating method, with uniform indoor surface temperature and gradually decreasing room temperature from bottom to top, giving people a good feeling of warming their feet and cooling their heads; It is not easy to cause polluted air convection and the indoor air is clean; Improve blood circulation and promote metabolism.
② Save space and beautify the living room: cancel the radiator and its branch pipes indoors, increase the usable area, facilitate the decoration and home layout, and reduce the sanitary dead angle.
(3) Efficient and energy-saving: the radiation heating mode has higher thermal efficiency than the convection heating mode, and the heat is concentrated at the height that the human body benefits; The heat loss during transmission is small; Low-temperature floor radiant heating can be controlled by layers, households and rooms, and users can adjust it according to the situation, which is effective in saving energy.
(4) Good thermal stability: the ground with warm floor and concrete floor have large thermal storage capacity and good thermal stability. In the case of intermittent heating, the indoor temperature changes slowly.
⑤ Low operating cost: Compared with other heating equipment, it can save energy by about 20%, and can make full use of low-temperature hot water resources or use electricity price policy to reduce operating cost.
People's Network-Will floor heating endanger human health?
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