#greenhouse #greenhouse build #vegetables #garden

This video review presents a rather interesting option for a modern greenhouse measuring 6x40 meters, which is an area of 240 square meters, plus an airlock.
A more detailed look at the main elements:

For the construction of the greenhouse, a galvanized frame was used, where each arch is made in the form of a double arch with crossbars - a truss, which has a high load-bearing capacity. The step between the arches is made in two meters. At the same time, the option of a submerged type was additionally selected, using thermos technology, which significantly reduces "lower heat losses", which reduces the overall heat loss of the greenhouse as a whole by about 15-20%.
The covering for the greenhouse is a double film with an automatic inflation system. Due to the fact that the inflation is located near the boiler, in this version, warm air is driven into the dome, which creates a kind of "thermal curtain" effect. And most importantly, this option removes condensate from the film, since the dew point shifts to the upper film. The ends of the greenhouse are traditionally made of cellular polycarbonate, which increases the rigidity of the end elements to wind - horizontal loads.
The greenhouse has an airlock, thanks to which, when you enter the greenhouse, you first enter the airlock, where the boiler is installed, and which separates the main room from cold air flows in the greenhouse itself.
The heating system is based on air heating in the greenhouse. The boiler capacity is 72 kW. Thanks to this approach, the air heated from the boiler is immediately redistributed throughout the greenhouse. The boiler has several control systems and can operate both on natural draft and on additional forced inflation, thanks to which the power can be significantly increased (as in a car when you press the gas pedal to the floor, so an additional turbine creates a boost).
This heating system is supplemented by heat accumulators, which capture excess heat (as soon as the temperature rises above 25°C) and all the heat begins to be driven into the ground. Due to the fact that the ground has a heat capacity approximately 100 times greater than what can be accumulated in the volume of air in this greenhouse. As a result, the accumulation of such heat during the day will allow, at a temperature of 0 degrees outside, without a main heat source, only on the heat of the ground, to last for about 4 hours (with a decrease in soil temperature from 25 to 17°C). Heat accumulators allow you to no longer use heat from the beginning of April, when the temperature outside can drop no lower than 5°C.
The lighting system is represented by LED spotlights with diodes from Nichia Corporation - which have the highest light output in the world, up to about 180 lm/W. Thanks to this indicator, as well as the use of special greenhouse diodes, with a color temperature of 3000 K, which is practically an analogue of sodium diodes - only three times more economical. Such lighting is obtained by shifting the blue and red spectra, thanks to which these full-spectrum lamps are ideal for plants such as tomatoes and cucumbers. The average power consumption for lighting with an amount of 14 diodes of 200 W each + 1 of 150 is approximately 3 kW. If sodium spotlights were used in this greenhouse, then about 28 spotlights of 400 W would be required (that is, about 11.2 kW) to obtain the same amount of luminous flux.
Ventilation in the greenhouse - thanks to the fans, there is constant air movement in the greenhouse, and this prevents the air from stagnating all the time. In addition, the greenhouse is equipped with side vents around the perimeter of the greenhouse, as well as end vents.
And irrigation - automatic, with a storage tank, drip, divided into three main zones.

Best wishes, and may your greenhouses provide you with bountiful harvests.

Visit our web-site: teplitca.kiev.ua
You can also contact us at:
Phone: +38097-139-50-79
Phone: +38099-374-05-40
Viber: +38099-525-31-49
Thank you!