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I’ve seen some literature stating that during design, the furnace size should first be determined based on the heat intensity allowed by the furnace, and then adjusted according to the residence time required for the combustion of waste gases. But I still can’t figure out how to determine it. Could some expert give me some guidance?
What is the specific heat intensity, and how is it determined?
The furnace size of a waste incinerator is primarily determined by two factors: the volumetric heat intensity allowed by the combustion chamber, and the residence time required for the waste to be in the high-temperature furnace during incineration. The usual approach is to determine the furnace size based on the allowable heat intensity of the furnace, and then verify it using the residence time required for waste incineration.
I’ve seen this before. Here, my main focus is on the treatment of organic waste gases. The information I found states that the volumetric heat intensity of these gases is generally around (20–25)× 104 kcal/(m3•h); another source indicates a heat load of 800,000–1,000,000 kJ/(m3•h). Now I’ve seen this value as well, and I’m not sure which one to use
Is there no data comparison from relevant pilot tests?
No. Can the heat of combustion be used instead?
For organic solvents as well, the calorific value is important; if the combustion calorific value is greater than 5000 kcal, it is recommended to use a water-cooled furnace. The furnace load should be 400,000 kcal per hour per cubic meter, taking into account the combustion calorific value