Project Equipment and Systems

Project Equipment
and Systems

1-Thermal and Shade Curtain

Thermal curtains provide shading in summer; high thermal insulation in winter and at night, ensure indoor atmospheric control and high energy savings. Aluminium polyester woven curtains are used as thermal and shade curtains. Push-pull curtain system with aluminium reflector is mechanically or automatically opened and closed with reducer motor rack and shaft transmission profiles.

Working compartment: 2 compartments (along the greenhouse)
Type: PH 55
Heat protection: 58%
Shading: 53%
Weight: 85g / m2
Working system: push-pull
Engines: 3 ph. 400 v. suitable for automation with safety switch reducer
Shaft pipes: Ø 32 mm. steel pipe
Suspended nylon thread: 2 mm Polyester, transparent

2-Circulation Fans

If the outdoor humidity is higher than the indoor environment during the night hours, rainy and cloudy periods and in some periods during the winter months when the windows are necessarily closed, the humidity in the greenhouse will rise and this creates risk for the disease. Space circulation fans are important for the climate balance of the greenhouse air and the elimination of high humidity. One circulation fan is used for every 300-400 m2. It can be controlled automatically by computer when needed.

Diameter: 530mm x 400mm
Weight: 11 kg
Propeller: Metal
Voltage: 380 V
Power: 0.35 kW / h
Frequency: 50 Hz
Speed: 1400 rpm
Air Flow: 5,700 m3 / h
Equipment: Suspension Chains and Connection apparatus
Certificate: CE Standards

3-Fly Screen System

It is an effective measure against the spread of disease and virus agents.  In order to prevent fly and insect entry, it is necessary to install fly tulle on the windows; the construction system must be designed accordingly.  In the majority of domestic and foreign greenhouse structures in the market, this issue has not been solved appropriately and without problems.

In general, tearing, mechanical damage and malfunctions occur due to the fly tulle being trapped and entangled on the window shaft and the rack gears.  When the window is closed, the fly tulle fabric, which hangs out and squeezes under the window, prevents the window from closing well, causing rain water to infiltrate and absorb. All these problems have been solved by our newly developed fly tulle clip and tensioning system. Installation is practical, easy and rapid. In addition, since the stretching system prevents fabric accumulation and agglomeration, aeration efficiency is high.

4-High Pressure Humidification System

Humidification and cooling with fogging method will be done with 65-70 bar high-pressure ceramic piston pump and cross fog atomization heads. Fogging will be controlled automatically by computer automation according to time interval, ambient temperature and humidity. Water particles that are atomized by spraying at high pressure are absorbed by the air and provide the necessary moisture. The energy released during the sudden evaporation, cools the environment.

Main units:
• High Pressure Pumps – 100 Bar 9 x 42 l / min,
• Electric motor 380V 50Hz. 9 x 7.5 kW,
• Pressure regulators and bypass
• Manometer 0-160 Bar.
• Inlet Water Control Valve
• Low Pressure Warning Switch
Water Filter Units: 3 x 8 ton / h filter group
• Filter – 5 micron.
• Filter – 20 micron

Electrical Control Panels for all units are in CE standards and time controlled. 3 Digital Humidity and Temperature Control Units are available.

Fogging lines:
• Pipes are made of SS 304, connections are made of SS 316 stainless steel.
~ 270m. 22 × 1.5 mm main line // ~ 3,000m. 12 × 1 mm fogging line pipe
• Welded nozzle carrier bodies – SS 303 2.620 pcs.
• Stainless fogging nozzles-pin and drip cutter springs no: 3, 8,4 l / min. @ 100 Bar. 2,650 pcs.
Desired values: temperature: 27-28ºC, humidity: 65-70%
Required water values: Ph-7, hardness: 3-10 Fr. Inlet pressure: 2-6 Bar.

5-Automatically Controlled Irrigation System and Fertigation

For greenhouses aimed at soiled production, 20 mm labyrinth drip irrigation system has been projected. Irrigation and fertigation will be done with central system. Every 5 dunam of the greenhouse unit is divided into 4 compartments by means of solenoid valves, the irrigation interval and the amount of water, fertilizer dosage, PH and EC levels will be automatically controlled by computer. Filtration will be done effectively with filter combinations according to the quality of irrigation water. One fertilizer device and automation is planned for PH and EC balance, irrigation interval and irrigation quantity and fertilizer dosage.

Injectors that have stainless steel structure can dose 4 fertilizers and 1 acid via venturi. EC and pH measurements are made automatically by sensors. Alarm and security system ensures safe irrigation and fertilization.

6-Climate Control Computerized Automation System

Indoor and outdoor climate data (such as temperature, humidity, wind, rain and light sensors) will be measured via the mini-meteorological station to be installed outside the greenhouse and the sensors inside the greenhouse. All climate control functions such as ventilation windows, heating system, cooling-humidification, shading system and all parameters determined for production units will be controlled separately and can be adjusted according to the desired set values. Automation will control two or more units separately. This automation system requiring  intensive parameter measurements and control; will be consist of computers, printers, sensors, sensors and measuring devices as well as electronic circuits and automation software.

The system interprets all the parameters coming from the sensors and keeps the statistics and provides the security of the system with the alarm system that can be graphed. The system will be able to control over the internet, if desired; all systems can be controlled separately from the central system.

7-Soilless Culture Application and Ground Cover

With regard to soilless culture and production beds, the use of cocopeat slaps is becoming widespread in terms of both heat balance, sterility and usage advantages. This product has high water retention and aeration properties. Plant growth improves yield and quality.

The drain gutter made of roll steel sheet is formed in one piece along the length of the row in the greenhouse and made by mobile roll sheet bending line machine. Therefore, there is no leakage problem from the joints. Galvanized painted steel is resistant to rust and corrosion, and long lasting. As it is raised from the floor with the hanger system, it facilitates labour operations, provides humidity and disease control to be made more safely. Since the cold weather is heavy, the greenhouse floor and the root zone becomes cold, and the sufficient height above the soil level provides an ideal result for root and plant growth.

The carrier drainage gutter ensures that the manure water leaking from the production beds is collected for recycling. The gutter system’s cross-sectional feature is designed in order to discharge the drainage water from the sides, preventing the spread of plant diseases.

The greenhouse floor will be covered with woven ground cover in order to prevent weed growth and provide a sanitary environment. The gutter made of 600×0.6mm sized painted galvanized sheet is manufactured in one piece along the greenhouse line. Six rows of gutters shall be used with a space of 9.6 meters.

8-Natural Gas Heating System (Tube Rail and Rail Heating)

In the heating system, vegetation-heating technique that provides balanced heat distribution in the greenhouse will be applied. Tube-rail heating system shall be established with steel pipes of 50 mm diameter and shall be laid between each row of plants. By heat transfer and rails, plant maintenance, harvesting and product handling operations are simplified and labour costs are minimized. For a balanced heat distribution in the greenhouse, TSCHELMAN method shall be applied for manifold collectors and line distribution.

In the heating system of greenhouses, 80 P0PC geothermal energy source will be used. When the outside atmosphere temperature is –9 P0PC, the internal atmospheric temperature of the greenhouse should be 16 P0PC, and energy is required to support the temperature difference of 25 P0PC. A minimum temperature of 16 P0PC at night is ideal for good respiratory stability and metabolic activity. In the climatic conditions of Turkey, temperature difference based on 25 P0PC, will provide sufficient safety. In order to determine the energy and geothermal fluid needs of the greenhouse to be established, the use of greenhouse cover material and thermal-shade curtain to be used has an important role. Energy curtain application will provide significant savings and increase the efficiency of geothermal potential.

In order to prevent corrosion and crusting in the heating system pipes and circulation pumps caused by geothermal fluid, a heating system with closed circuit heat exchanger will be used in the greenhouse. Water heated by transferring through the plates of the heat exchanger that is selected according to the type, capacity, chemical properties and temperature of the geothermal, is transferred into the closed circuit circulation water, thus, the heating shall be ensured by circulating the heated water by means of circulating pumps and heat distributor lateral serpentine pipes in the greenhouse.

When the greenhouse ambient temperature reaches the specified level, circulation will be controlled by the command from heat sensors inside the greenhouse and inside the pipe and circulation pumps in the heat exchanger unit will be deactivated and in-house circulation will continue. When the energy requirement arises, the circulation pumps connected to the heat exchanger will be activated automatically. System will be controlled by computer automation, and heat balance will be ensured by adjusting the proportional mixture by means of servo motor and three-way valves.