Strength calculations on heating panels in coking batteries may be based on experimental data on the coking pressure in industrial ovens, which leads to a substantial change in one's views on the design strength of the panels. It is found that the experimentally determined coking-pressure of 20 kPa in the region of the bottom opposite the third fuel channel and decreases linearly almost to zero towards the dome and changes in accordance with the bulk density of the load, where the maximal deflection is 0.329 mm. This is larger by almost a factor 3 than the value obtained by calculation for the coking pressure usually assumed (7 kPa). The experimentally found level of deflection of the panel is much larger (by about a factor 100) than the calculated values. The most likely reason is the motion of the top of the panel under the transverse forces exceeding the frictional force between the bricks at the top of the unsupported panel and the cover, which leads to redistribution of the load on the panel and consequently to its failure. The largest compressive stresses in the panel stack for the form of loading described in item 2 above is about 870 kPa, which is close to the limiting permissible compressive stress for dinas. However, the distribution ofthe coking pressure along and up the coking chamber assumed in this model is only an assumed one. Research is needed to obtain scientifically sound input data for designing coking batteries, which it is important to extend.
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