Characteristics of flue gas from straw boilers
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I recently came across a project for generating electricity from straw. However, the amount of smoke and the characteristics of the dust generated by straw burning are not clear. Such as flue gas temperature, moisture content, etc. Have any seniors dealt with these things before? Could you give me some guidance?
Please refer to the following link: http://www.ncpe.com.cn/tjzyw/gckjlt/lt060206.htm
I have also been carrying out preliminary work on the design of a direct-fired boiler using straw pellets recently; however, since the boiler is intended for heating purposes, it’s very difficult to find relevant information! The biggest problems with burning straw are tar and fly ash, but no detailed information can be found.
With the elemental analysis of straw – the components C, H, O, N, S, and ash – it is possible to calculate the amount of flue gas based on complete combustion.
Excuse me, are there any standards or specifications for the thermal calculation of straw upstairs? Fly ash coefficient, fouling coefficient, thermal efficiency coefficient – I rely on experience when performing these calculations, and it’s likely that there are significant differences compared to coal
What is the moisture content of the smoke generated by burning wheat or straw? Why does one need to consider tar when using layer combustion?
The raw material is rice husk; experiments show that its moisture content is very high, and the fly ash content is also significant
In fact, the combustion characteristics of different biomass fuels vary greatly; wood chips, peanut shells, and rice husks do not tend to form slag easily, whereas corn straw has a higher likelihood of forming slag.
It is mainly due to the differences in biomass, which result in varying amounts of flue gas and moisture content; therefore, thermal testing is carried out first! ! !
Generally, straw has a high moisture content, and this value varies considerably. The flue gas properties are similar to those of coal