What is the cooling effect of the finned tube economizer on the boiler?
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What is the cooling effect of the finned tube economizer on the boiler? How much heating area is needed to reduce the temperature from 1000℃ to 300℃?
Boiler finned tubes are divided into outer fins and inner fins. In terms of energy saving effect, they should be energy-saving. This applies to the location of the boiler, the amount of hot gas for heat exchange, the amount of cooling water, and the pressure. There are relative conditions. It is recommended to refer to the heat transfer section of the book "Principles of Chemical Engineering".
Your temperature range is too wide, even if you use these formulas, it may not be correct. What's more, the process of such high-temperature fins is very difficult and is rarely used in actual boilers.
1 Arranging fins on the boiler tubes expands the heating surface and helps to increase heat transfer. 2 Fins are a double-edged sword. They can expand the heating surface in a clean state, but they are easy to accumulate dust in the low temperature section. Dust accumulation reduces the heat transfer effect. 3. Objective evaluation is required. It is advisable to choose a longer operating cycle to take into account the impact of dust accumulation on cleaning.
The inlet flue gas temperature of 1000°C is not suitable for the structure of finned tubes.