Chen Greenhouse tube photovoltaic bracket

What is the Beijing solar heating greenhouse project?

The Beijing Solar Heating Greenhouse Project is a demonstration project including 12 pilot modern greenhouses with coverage of 520 m 2 solar collectors . Through the solar heating system, the average temperature can be increased by 4–5 ℃.

What is a solar heating greenhouse project?

These greenhouses utilize heat-absorbing solar collectors accessed with circulation tubes to heat water for night space heating purpose. The Beijing Solar Heating Greenhouse Project is a demonstration project including 12 pilot modern greenhouses with coverage of 520 m 2 solar collectors .

Are there solar thermal greenhouses in China?

There are also some other solar thermal greenhouses that have been applied in China's Beijing, Gansu, Xizang, etc. These greenhouses utilize heat-absorbing solar collectors accessed with circulation tubes to heat water for night space heating purpose.

What is a typical Chinese solar greenhouse?

Cross-section of a typical Chinese solar greenhouse. In addition to Chinese solar greenhouses, there are also facility cultivation units known as Gobi cropping systems . These cultivation systems used in China make full use of crop straw, animal manure, and other agricultural wastes to create a cultivation substrate for crop cultivation .

What are the structural sections of a solar greenhouse?

Figure 7 shows the structural sections of a solar greenhouse ; the thickness of the north wall base is 0.4–8 m, according to the demand, and the height of the north wall is mostly in the range of 2–4 m. The span of solar greenhouses (north to south length) is 7–12 m.

Are China's solar greenhouses a good investment?

A promising prospect is shown by China's modern solar greenhouses at present levels of performances and costs exemplified by the photovoltaic (PV) greenhouses with a practicable payback period of less than 9 years.