30results about How to "Improve sunlight utilization" patented technology

The invention discloses an adjustable base for supporting a solar energy panel and an angular adjustment method thereof. The adjustable base comprises a frame, an angular adjustment element and a side bracket. At least one solar energy panel is fixed to the frame. The angular adjustment element arranged on the frame comprises an angular positioning element so as to provide a limited number of angular positions. The side bracket is connected with the frame via the angular adjustment element. The relative rotatin angle of the side bracket corresponding to one of the limited number of angular positions with respect to the frame is adjusted by the angular adjustmtent element. Therefore, the adjustable base can satisfy different requirements so as to fix the solar energy panel at different angles, which solve the problem that the sunlight utilization rate of a solar panel panel fixed at a single angle is low in the prior art.

The invention discloses an ecological and energy-saving solar greenhouse of a composite mud wall-canopy structure. The ecological and energy-saving solar greenhouse of the composite mud wall-canopy structure comprises multiple greenhouse units which are connected. Each greenhouse unit comprises a front wall, a middle wall and a rear wall, wherein a sun shed is arranged between the front wall and the middle wall, a dark shed is arranged between the middle wall and the rear wall, a sun shed steel arch is arranged in the sun shed, the span of the sun shed steel arch is 9 m-11 m, the height of a ridge of the sun shed steel arch is 5 m-6 m, the distance between the ridge and the edge of the northern side of the front wall is 7.5 m-8.5 m, the distance between the ridge and the edge of the southern side of the middle wall is 1.5 m-2.5 m, the shed face between the ridge and the front wall forms a front shed face, the shed face between the ridge and the middle wall forms a rear shed face, the included angle between the rear shed face and the ground is smaller than 45 degrees and is larger than a local sunlight incidence angle on winter solstice, the front shed face of the sun shed is covered with five multifunctional co-extrusion films, and the rear shed face of the sun shed and the shed face of the dark shed are covered with double-layer hollow PE films. According to the ecological and energy-saving solar greenhouse of the composite mud wall-canopy structure, the sunlight utilization rate and the land utilization rate are improved greatly, the temperature control performance is perfect, and year-round production can be achieved.

A method for producing a dye-sensitized solar cell is characterized in that: during the cell production process, diatomite powder and titanium dioxide powder are mixed according to a certain ratio, a photo anode is produced on an electric conduction basal body, and the photo anode adopts a diatomite doping titanium dioxide coating produced on the electric conduction basal body; and a counter electrode adopts high light transmission electric conduction glass, the doping amount of diatomite in the titanium dioxide coating of the photo anode is 5%-50%, and the thickness of the coating is 0.5-3mum. The novel dye-sensitized solar cell adopts diatomite doping titanium dioxide materials to produce the photo anode, the photoelectricity conversion efficiency of the dye-sensitized solar cell can be effectively improved, and the electron recombination is restricted. The novel dye-sensitized solar cell which is obtained through the method has the advantages of low production cost, high solar utilization rate, strong adaptability to environment and the like, and can simultaneously bear high solar radiation, so the efficiency of the cell is prevented from being reduced to influence the service life during the use.