Calculation of fuel gas consumption for furnace heating in incinerators
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How does everyone calculate the consumption of fuel gas for furnace heating? Are there empirical values based on the size of the furnace? Let me first talk about my own algorithm; I welcome everyone’s feedback. First, the amount of air required for combustion is calculated under the design conditions. For drying operations, 30% of that amount is used. In the Aspen reactor, the fuel gas is mixed in such a way as to achieve the desired temperature for drying. The amount of fuel gas consumed at this point is the value I calculate, but it seems that there might be a discrepancy with the actual values. In reality, the air flow during drying operations is determined by human operation, rather than based on the values calculated in my simulations. What do you all think?
What type of incinerator is it? Have heat loss and air leakage been taken into account? Moreover, the furnace is heated gradually, and different heating curves are used
This post was last edited by Aiyiayanheng on 2020-5-14 at 16:58. For waste gas incinerators, heat loss is not taken into account; after all, the calculated amount of fuel gas used for heating the furnace is not very accurate. What I’m referring to here is the amount of fuel gas consumed to reach the highest temperature of the furnace. Actually, what I mainly want to know is how the air volume for heating the furnace to its maximum temperature is determined. Thank you!
Generally, to ensure effective furnace drying, the gas flow velocity inside the furnace chamber should be no less than 1 m/s; this is the typical value used for estimation
Mm-hmm, thank you. I think this basis is quite reliable
An approximate estimate can be made based on the furnace type, heating curve, fuel, etc
Well, I also feel that the calculation of the fuel gas consumption for this oven isn’t accurate; the estimate is more or less correct
Expert, could you please advise on how to simulate an incinerator using Aspen?
The Gibbs reactor can be used for thermal calculations of incinerators