Sial sells high performance dehumidifiers, so even when the temperature is high, the moisture level in the air can stay low. The basic idea of drying products is to provide longtime storage without degradation, early harvesting which reduces field losses, higher prices of agricultural products and better quality. The industrial drying processes are performed with consumption of heat and electricity for driving the auxiliary equipment. Basic energy requirements are connected to heating the product to suitable temperature to initiate the process of evaporation (of the moisture) and energy necessary to evaporate certain percentage of the moisture. Basic requirements in designing drying equipment are reaching maximal intensity of the drying process under optimal conditions for preserving the quality of the material.
Sial offers heaters suitable for humid environments such as greenhouses. We offer heating for various crop types: cold greenhouses, frost-free greenhouses, warm greenhouses, and tropical greenhouses. For every type of flower and plant.
If you're thinking about heating your greenhouse to continue growing your favourited seasonal vegetables in the fall, there are several options:
One of these options is an oil heater. The advantage of an oil heater is that it can be installed anywhere. CO2 promotes the growth of many plants and crops, and the water vapor from these emissions maintains the humidity level in the greenhouse. Ensure good ventilation (especially at night) to ensure humidity and complete combustion.
Another good alternative is an electric heater. This heating method quickly and completely heats the greenhouse to temperature. An electric heater is also low-maintenance, fireproof, inexpensive to purchase, and safe for plant use. The heater's thermostat allows you to easily regulate heat, humidity, and air circulation. These three factors prevent mold growth and improve the quality of your crop.
Let's assume you have a greenhouse measuring 3 x 3 meters with an eave height of 2 meters. The temperature in the greenhouse must be at least 5 degrees Celsius, with the minimum temperature estimated at -10 degrees Celsius.
You can calculate your heat requirement using the following formula:
A = Greenhouse floor area x 10
B = Greenhouse glass area x 6 x delta value*
A + B = Required wattage
*Delta value is the difference between the predicted outside temperature and the desired temperature in the greenhouse.
In this example, this would mean:
Floor area: 3 x 3 = 9m²
Glass area: Side walls (2 3x2) = 12m². Gable (2 3x2 + top gable) = approx.
14m². Roof approx. 10m². Total: 36m²
Delta value: -10 degrees outside to +5 degrees inside = 15
A = 9 x 10 = 90
B = 36 x 6 x 15 = 3240
A + B = 3330 watts or 3.3 kW
