All formulas for greenhouse film calculation

 

Greenhouse film in roll
Greenhouse film in roll

Greenhouse mulch film is a kind of mulch film used in agricultural production, which can effectively protect crops from bad weather and improve crop yield and quality. In the application process of the greenhouse film, a series of calculations are required to ensure the best effect of the greenhouse film. This article will describe all the formulas for greenhouse film calculations.


1. Calculation formula of the shed film area


The formula for calculating the area of the shed film is area = length × width. In practical applications, it is necessary to measure the length and width of the greenhouse, and then multiply the two values to obtain the area of the greenhouse film.

2. Formula for calculating the thickness of greenhouse film

The thickness calculation formula for greenhouse film is thickness=weight ÷ area. In practical applications, it is necessary to weigh a certain area of greenhouse film first, and then divide the weight by the area to obtain the thickness of the greenhouse film.

3. Formula for calculating the transmittance of a greenhouse film

The formula for calculating the transmittance of a greenhouse film is transmittance=standard transmittance × 100%。 In practical applications, it is necessary to use a transmittance meter to measure the transmittance of the greenhouse film, divide it by the standard transmittance, and then multiply it by 100% to obtain the transmittance of the greenhouse film.

4. Formula for calculating the service life of greenhouse film

The calculation formula for the service life of greenhouse film is service life=thickness+annual loss rate. In practical applications, it is necessary to first measure the thickness of the greenhouse film and then calculate the service life of the greenhouse film based on the annual loss rate provided by the manufacturer.

5. Temperature calculation formula for greenhouse film

The temperature calculation formula for greenhouse film is temperature=outdoor temperature+(indoor temperature – outdoor temperature) ÷ (1+0.6 × Wind speed). In practical application, it is necessary to measure the indoor and outdoor temperatures and calculate the temperature in the greenhouse according to the wind speed.

These are all the formulas for greenhouse Membrane computing calculation. These formulas can help farmers better use greenhouse film and improve agricultural production efficiency and quality. At the same time, it is also necessary to pay attention to the quality and usage of the greenhouse film. To ensure the most effective use of greenhouse film.

 

 

 

 

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