First, the intelligent sunshade
Shading is an effective way to save energy in buildings. Good sunshade design can not only save energy, but also enrich indoor light distribution, architectural modeling and facade effect.
At present, the most widely used intelligent sunshade control system is based on LONWORKS control network technology, which can realize the following functions: the system calculates the elevation and azimuth of the sun in different seasons, dates, time periods and different directions according to local meteorological data and sunshine analysis results. Then, the intelligent controller controls the rotation angles of shutters in different directions according to the set time period. Detect whether it is sunny or cloudy through a multi-directional sunlight sensor arranged on the roof. On cloudy days, the system controls the blinds to open horizontally; On sunny days, it will be executed according to the automatic sunlight tracking mode. At the same time, the occlusion model will be established according to the shape of the building and the surrounding buildings, and the daily shadow change of the reference point will be calculated, stored in the motor controller, and then automatically run according to the results.
Second, the principle of external shading
External shading is to use some physical means to prevent solar radiation heat and solar rays from entering the room through the building envelope. The ways of heat transfer are: heat conduction, thermal convection and thermal radiation. Because the energy transfer of solar radiation is mainly thermal radiation, we focus on the influence of thermal radiation on indoor environment. When the sun radiates, it appears in the form of light, which is divided into three main bands: infrared, visible light and ultraviolet, of which ultraviolet light accounts for 3% of the total heat, visible light accounts for 44% and infrared light accounts for 53%.
More than 50% of building energy consumption is air conditioning energy consumption, and half of air conditioning energy consumption is due to the loss of doors and windows, so the external shading of building doors and windows is of great significance.
Real external shading must meet three conditions: shading, heat insulation, light transmission and ventilation. Only when these three conditions are met at the same time, is the real external shading.
Third, the smart sunshade brand recommendation
Mingcheng 1
(Shanghai Mingcheng Building Shading and Energy Saving Technology Co., Ltd.)
(400- 166- 1990, established in 1990, dedicated to providing professional personalized solutions in the field of building shading/building energy saving/shading intelligence, Shanghai Mingcheng Building Shading Energy Saving Technology Co., Ltd.)
2. Chuang Ming Wintom
(Guangdong Chuangming Shading Technology Co., Ltd.)
(400-060-99 15, supplier of manual/electric and intelligent window shading solutions, enterprise specializing in the production and sales of R&D/ indoor window shading/building shading products, Guangdong Chuangming Shading Technology Co., Ltd.)
Step 3 clear the camp
(Shanghai Qingying Industry Co., Ltd.)
(02 1-650 12228, an earlier enterprise engaged in sunshade products in China, a large-scale sunshade system provider, a high-tech enterprise in Shanghai, and Shanghai Qingying Industrial Co., Ltd.)
The above introduces a lot of knowledge, including the brand recommendation of intelligent sunshade products, the working principle parameters of intelligent sunshade, the principle and function of external sunshade, from which we can learn the manufacturers that can be trusted by consumers and the professional plate information that users can start learning. However, in order to further ensure the feasible scheme, we need to further study according to our own actual situation to avoid losses or troubles caused by lack of experience.