Usage of central heating furnaces. - technical tips
UNIWEX modern heating systems are designed to burn biomass, wood waste, and wood-based waste. They achieve power outputs from 200 kW to 5 MW. Importantly, in the case of our central heating furnaces the user has a full choice in the selection of fuel and technical equipment, according to individual requirements. In the production technology, we used the right proportions of the heat transfer surface. Maintaining an optimal combustion process with increased resistance to exhaust flow gives high equipment efficiency and reduces fuel consumption. Our furnaces comply with the regulations of the Office of Technical Inspection and the requirements for thermal waste conversion in accordance with the Decree of the Minister of Development dated 21.01.2016 as well as the Decree of the Minister of the Environment dated 01.03.2018 and meet the requirements of Class 5 and ecoDesign 2020.
Here are some technical tips on various aspects of industrial heating.
How to heat various industrial spaces?
The selection of the type and cost of heating depends, among other things, on the nature of the activities carried out in the facility.
The most advantageous option is spot heating that sustains a higher temperature at workstations (approx. 18°C), and lower outside the stations
In this case, rotary heating is required, ie. During working hours the temperature should settle around 15°C and after hours it can be lowered to as low as 10°C.
A heating source that gives immediate effect should be used in plant production halls. High efficiency and fast delivery of heat are important, especially during the fall and spring seasons. Then during the day, the greenhouse heats up from the sun's rays, but after dark, it cools down rapidly. Therefore, such a facility requires a source of rapid heat.
In many cases, breeding halls require high temperatures, as high as 30°C. This is important for creating optimal rearing conditions for chicks, chickens, piglets, and other young animals. After a few weeks, the intensive reheating of the premises can be abandoned.
Why use pellets?
Pellets are made from high-pressure compressed wood waste, i.e. shavings, wood chips, energy crops, sawdust, as well as straw. It has the form of balls or cylinders a few mm in diameter and up to a few cm long. The heating value is the same as for wood. However, this fuel is distinguished by its low moisture content and production of minimal ash. What's more, the ash from the pellets can be used as fertilizer. A ton of pellets is only 10-15 kg of ash. Burning pellets does not emit carbon dioxide. It's a fully green fuel.
How to burn wet and contaminated fuel?
Inferior quality fuel can be handled by heating furnaces equipped with a movable step grate. The fuel goes to the top of the grate and then in a reciprocating motion is gradually moved downward. Drying and combustion also occur gradually by directing the hot flue gas stream in the opposite direction of the fuel feed. Any finer impurities in moving the fuel are shaken off to the lower part of the grate so they do not affect the combustion quality.