A new measurement method to analyse the thermochemical conve by Friberg, Rasmus,

By Friberg, Rasmus,

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XWXUH ZRUN The future work is divided into topics below  0HDVXUHPHQW PHWKRG The measurement method will be equipped and improved in the future: In the short-term • thermocouples, to measure the combustion temperature • a hydrocarbon sensor, to measure the hydrocarbons in the flue gas In the long-term • a water-vapour sensor, to measure the water vapour in the flue gas directly. • a method to measure the water vapour, in the flue gas, coming from the moisture of the solid fuel  ([SHULPHQWDO ZRUN A great number of experimental series can be carried out with the new method.

As been demonstrated by the graphs above, the fuel wood is significantly more difficult to thermochemically convert than wood pellets and wood chips, at a given volume flux of primary air and for the conversion concept studied. The relatively low conversion gas rates should be one of the most crucial factors in the explanation of 29 Research Work Summary emission problems from fuel wood combustion; that is, the lower the mass flow of conversion gas, for a given volume flux of primary air, the lower the combustion temperature in the combustion chamber will be, which in turn reduces the combustion efficiency.

A - Bed section B - Overfire section )LJXUH  5RJHUV¶ SRW IXUQDFH LV GLYLGHG LQWR $ WKH EHG VHFWLRQ DQG %RYHUILUH VHFWLRQ >@ The pot furnace was constructed so that the radiant heat flux, which would prevail at the top of the fuel bed in a traveling grate stoker or incinerator, could be simulated under batch conditions. The burning rates could be determined by measuring the weight loss of the fuel bed as a function of time. The pot was constructed in two sections (Figure 1)- the overbed section (combustion system) and the fuel bed section (conversion system).

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A new measurement method to analyse the thermochemical conve by Friberg, Rasmus,
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