Flue gas temperature
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Hello, teacher: Given that the flue gas temperature is 160 degrees and the flow rate is 100,000 NM3/H, how much water is needed to reduce the temperature to 50 degrees using the water spraying method? Thank you! ! !
It is necessary to specify at what temperature the water should be used for cooling. In many refineries, the temperature of the circulating slurry in the desulfurization units is above 50 degrees, so it’s hardly possible for that temperature to drop below 50 degrees
What was said upstairs makes a lot of sense. Take Berg’s EDV desulfurization system as an example: the temperature of the circulating slurry is around 60 degrees, so it’s impossible to reduce the flue gas temperature to around 50 degrees. Therefore, specific parameters need to be provided by the original poster in order to carry out calculations and analyses.
However, the temperature of the circulating slurry in the EDV desulfurization system is 60 degrees; so how can flue gas at 180 degrees be cooled down to 60 degrees in the quenching section? I’ve calculated that the heat of vaporization alone is far from enough
That’s right; the temperature of the cooling medium needs to be specified
The last edit to this post was made by xyfeng007 on 2016-12-7 at 12:35. The degree of water supply is crucial; in addition, there must also be a minimum acceptable temperature for the cooled return water (the water that has been cooled by the flue gas)； Heat transfer takes into account the average temperature difference