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 Production of steam – the boiler


If we already know how much steam do we need, we can count how big boiler will we need. Specific feature of steam systems is fact, that the steam is absorbed by the raw material and that’s why those systems have condensing circulation relatively short.

It means, that to the boiler is delivered a big amount of supplying water, and temperature of this water is lower than temperature of water delivered to device that produces steam in which drip retrieval is big.
That’s why water treatment should be more regular and has better quality than in case of system with big drip retrieval.

The amount of steam is defined in kilos produced of supplying water in temperature of 100oC.
But in our specific case steam applying would be quite dangerous, because supplied water has much lower temperature and the steam is not 100oC hot, and it would mean that our steam is produced in atmospheric pressure.

The efficiency of boiler varies depending on supplying water temperature and production pressure. When you choose a boiler you should buy a 25% bigger one than it results from theoretical demand for steam.
The best kind of boilers for pelleting demand are smoke boilers. For smaller machines it is recommended to install a timer, which enables turning on in advance, before start of new shift.

If some machine (practically or theoretically) is not able to produce enough amount of steam, then the temperature of water should be increased. It is easy to make using fuel economizer and thermally isolate supplying water container. This is a very good way of eliminating waste of warmth. We can’t forget that waste of warmth is very expensive.

We should also mention that drip is to get back to supplying water container to decrease to minimum consumption of fuel.

Another practical advice says, that increasing temperature of water for 6oC lets decrease for 1% consumption of fuel needed to transform water into steam.

Often reason of wet steam producing is too high level of water inside boiler – it is recommended to check regularly this level.