Plastic greenhouses performance indicators

[Greenhouse construction] plastic greenhouses performance

 

1.Plastic greenhouses light transmission properties

 

Greenhouse lighting buildings, and thus the light transmittance is a basic indicator of the performance evaluation greenhouse transmittance. Transmittance in through a percentage of the amount of the amount of light in the greenhouse and outdoor lighting. General, multi-span plastic greenhouse solar greenhouse in the range of 50% to 60%, the transmittance of the glass greenhouse in the range of 60% to 70%, up to 70%.

 

2. Plastic greenhouses insulation properties

 

Heating energy consumption is a major obstacle to greenhouse winter running. Improve the the greenhouse insulation performance, reduce energy consumption, which is the most direct means to improve the production efficiency of the greenhouse. Greenhouse insulation than a basic indicator to measure the the greenhouse thermal insulation performance. Greenhouse insulation ratio and the ratio of the same land area covers an area of greenhouse building envelope thermal resistance less greenhouse translucent material covering the area with thermal resistance. Insulation than the larger, the better the insulation properties of the greenhouse.

 

3. Plastic greenhouses durability

 

The greenhouse construction must consider its durability. Greenhouse durability by the greenhouse material aging resistance, the impact of the greenhouse the carrying capacity of the main structure, and other factors. The translucent material durability in addition to its own strength, but also in material transmittance attenuation with time, the degree of attenuation of the light transmittance of translucent material life of the decisive factors. General steel structure greenhouse life in more than 15 years.

 

Due to the greenhouse running long at a high temperature, high-humidity environment, the surface of the corrosion of the member become one of the important factors affect greenhouse life.

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