Climate Control Devices

Air Circulation Fans
Air circulators are used to move the air in the greenhouse, disperse humidity and spread heat evenly. Ventilators for circulating air in the greenhouse create a stream of constantly recycled air around the plants.
Benefits:
aircirculation
  • Even distribution of hot air
  • Homogenous temperature
  • Removal of humidity clouds and leaf drying
  • Economical use of agrichemicals
  • Heat reduction in open greenhouses
  • Air circulation contributes to record high quality crops!

 

Super Fogger
The Super Fogger is the optimal solution for cooling, humidifying and pesticide spraying in greenhouses.
Features:
fogger
  • Very small droplets (average of 90 microns) for minimal wetting of foliage (pulsed operation)
  • Built-in leakage prevention device
  • Excellent coverage when used for applying pesticides
  • Easy installation and service
  • Chemical-resistant raw materials
  • PE and PVC connections
  • Low cost

 

Exhaust Fans
Exhaust fans are used to create forced ventilation and to reduce excess humidity. These fans work on centrifugal axles that automatically open the fan covers when they are activated and close them when the fans cease to operate.
exhaustfans
  • Forced ventilation and Reduce excess humidity
  • Exhaust Fan Models: 12", 24", 30", 36", 50"

 

Cooling Pads

Cooling pads, when used in conjunction with fans, result in substantially lower temperatures and increased humidity. Suitable temperature and humidity levels are determined by the size and location of the greenhouse, environmental conditions, size of the cooling pad and number of fans.

Cooling pads and fans are installed according to the direction of light and wind.

coolpad
  • Available in 1-2 m. height
  • High efficiency
  • Economical operation

 

Retractable Thermal Screen
Modern thermal screens are made of reflective aluminum sheets, special stainless-steel props, metal-propulsion wheels, and superior plastic thread that prevents detachment and damage of the screen. The screens provide shade, reduce temperatures and save energy. The Screens are operated by a motorized gearbox located in the greenhouse.
screen
  • Energy Saving
  • Highly Reflective
  • UV Stabilized
  • High Tensile Strength
  • Lightweight, easy to handle
  • Protects against frost
  • improved light diffusion
  • Easily fastened

 

CO² Units

Carbon dioxide (CO2) is an essential component of photosynthesis (also called carbon assimilation). CO2 increases productivity through improved plant growth and vigor, expressed in earlier flowering, higher fruit yields, reduced abscission, and improved stem strength and flower size.

CO2 distribution depends mainly on air movement within the greenhouse. When a single source of CO2 is used for a large surface area or several connecting greenhouses, it is recommended to install a distribution system for even distribution of CO2 , especially when flue gas CO2 or liquid CO2 is used. Air circulation using horizontal airflow fans or fan-jet systems provide uniform distribution by moving large volumes of air within the greenhouse when top vents are closed or exhaust fans are not operational.

co2
  • Increase yields
  • Provide shorter growing periods
  • Improve floral quality
  • Reduce heating costs (less ventilation, faster growing periods)

 

Polyethylene Curtain
An automatic system is recommended for opening side and roof curtains to obtain maximum ventilation and to reduce humidity. Gear motors operate the side and roof curtains along a maximum length of 110 m. The curtains are opened and closed by an automated command system or manually.
curtain
  • Removal of humidity
  • Economical heat reduction in the greenhouses

 

Artificial Light Systems

To reach the ideal environment for causing continues photosynthesis of the plants in the greenhouse, it is necessary to apply to the greenhouse artificial lighting that will capable of supplying an even uniformed lighting dispersing.

light
  • Significantly increase the health, strength, growth rate and yield of the plants.
  • Supplement natural sunlight in the greenhouse virtually eliminates seasonal and geographical restraints.
  • Extending "day length" with supplemental lighting, greatly enhance growing success.

 

Heating Systems

The heating requirements of a greenhouse depend on the optimal temperature required for plant development, the location and construction of the greenhouse, and the total outside exposed area of the structure. As much as 25 percent of the daily heat requirement may come from the sun, but a lightly insulated greenhouse structure will need a great deal of heat on a cold winter night. An adequate heating system is required to maintain the optimal day and night temperatures. Heating systems may be fueled by electricity, gas, or oil. Heat may be distributed by forced hot air, radiant heat, or hot water. The choice of a heating system and the type of fuel used depend on local availability, plant requirements, costs, and individual preferences.

Hot Air Generator

In hot air generators, the fuel is combusted in a fuel box and the hot exhaust is passed through thin-walled, metal tubes (heat exchangers). Heat is transferred to the metal and the exhaust is removed from the greenhouse through an exhaust stack. The hot air may be blown directly into the greenhouse or forced through a polyethylene tube (jet tube) running the length of the greenhouse. These systems may use kerosene, liquid propane or natural gas as a fuel source. The system is designed to reach the temprature required by the crop.

Hot Water Heating System

Hot water is produced in a central boiler and is usually pumped through the greenhouse. An advantage of the hot water system is that, if the boiler fails, the hot water in the pipes acts as a heat reservoir for a short period of time. A standard system includes water delivery pipes, heat exchangers and circulation pumps for each cycle, electrical valves, railway radiation pipes and a full set of accessories.

heating
  • Uniform temperature throughout the greenhouse
  • Thorough cycling of hot air around the foliage
  • Energy conservation

 

Computerized Operation System

Using a computer based Greenhouse Controller and Grow Room Automation System designed to ease orchestrating the control of various devices in the Growing area to provide the perfect growing environment while also providing both safety and security options.

Configured to your specific requirements the controller is designed to provide optimal crop climates, while minimizing energy costs. This modular integrated system consists of climate, energy and water programs that allow you to control your business efficiently from one or more PCs. Using the software you can control Boilers, CHPs, Heat pumps, Buffer tanks and CO2. Climate controls are supplied as standard with large number of optimized options including air handling, ventilation, heating, CO2, curtains and lighting. From the same PC, you also have control over your water supplies including fertilizer dosage, with the user friendly operating program you have everything that you need to efficiently control your production.

control
  • Energy saving.
  • Precise automation.
  • Sensor history record and display.
  • Irrigation and misting control.
  • Accurate microprocessor control the entire environment.

 

Electrical Panel Board
The electric switchboards are an integral part of Top comprehensive greenhouse control systems, the boards supplied by Top comply with the most severe standards and the switchboards contain only the best quality components to ensure long-term reliability and service. In addition, Top provides installation and technical support, as with all its products.
electric

The switchboard supply power & control the following:


  • Ventilation motors
  • Screen motors
  • Circulation fans
  • Heating
  • Irrigation
  • Artificial light
  • CO2 Burners
  • Sulfur evaporator
2016. Top Greenhouses ltd.