For complete pyrolysis process (better heat transfer from combustion chamber to reactor chamber) is there any any relation between diameter ratio also H/D ratio.
Dear Dhanaji, in your question H is a lenght? Dc / Dr ratio between combustion chamber diameter Dc and reactor chamber diameter Dr is a parameter for changing exhaust gases velocity Vg (Bernoulli Theorem) from combustion chamber and reactor chamber; Vg and gases temperature Tg are related by Navier-Stokes and Energy equations, so that pyrolys process depends, from others parameters, on Dc / Dr ratio. Gianluca
In addition to above, both combustion chamber and reactor chamber diameters, are similar. The combustion chamber design principle starts from fuel properties and characterizations that leads to determination of flow rates of fuel and air as well as fluid dynamics expected in the chamber. The dimensions differ for cylindrical or rectangular shapes.
There are good books in design of burners (Charles Baukal), reactors(P. Badru; H.R. Howard), among several as well as publications in design of reactors that may assist you.
P. Basu's text books are good for reactor design. P.Badru is an error
.
also by adding the above two responses, the H / D ratio is derived from the calculated volume, in practice, of the stoichiometric ratio of the fuel to the reaction with the volume of air required to calculate the power of its pyrolyzer. Then, by getting the volume of gases produced in the process, you can determine the length and diameter of your system.
you must know fuel consumption rate and specific gasification rate.
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