When calculating the desulfurization tower, are operating conditions or standard conditions used?
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When designing the tower, it is necessary to calculate the amount of flue gas and the emission volume; this involves considerations of operating conditions versus standard conditions. It is important to determine when to use each set of conditions separately and when only one set is sufficient.
The diameter of the desulfurization tower must be determined based on operating conditions.
When calculating the diameter of the desulfurization tower, the flue gas volume used is that under operating conditions, whereas the volume used for calculating the liquid-to-gas ratio is that under standard conditions. In actual calculations, the flue gas temperature is usually that under operating conditions; therefore, it is necessary to know the conversion relationship between operating conditions and standard conditions in order to obtain accurate results.
When performing calculations on equipment, the operating conditions are definitely used
The design operating conditions for the flue gas desulfurization unit should utilize the flue gas conditions corresponding to the boiler’s BMCR when burning the designed coal type, while the verification operating conditions should use the flue gas conditions corresponding to the boiler’s BMCR when burning the coal type used for verification； Since the average value of base sulfur content in the coal specified for the main plant design is used, the sulfur dioxide concentration at the inlet of the flue gas desulfurization unit (design value and verification value) should be determined through investigation. Considering the actual coal procurement situation and the trends in coal quality, the higher value within that range is selected. When installing flue gas desulfurization units in existing power plants, it is advisable to determine the design and verification operating conditions for such units based on the actual measured flue gas parameters, while also taking into full account the trends in coal supply. The design parameters of the flue gas at the inlet of the desulfurization unit should all be the values at the outlet of the main unit’s flue. Flue gas volume: Boiler BMCR condition (standard conditions (dry, wet, reference O2, actual O2), actual). The flue gas desulfurization unit shall be able to operate safely continuously at any load between the boiler’s minimum stable combustion load condition and the BMCR condition. The load change rate of the flue gas desulfurization unit should be compatible with the boiler’s load change rate. This post was last edited by shanyee on 2009-4-27 20:45]
When calculating, operational conditions are used, but in the descriptive text, standard conditions are specified
It’s all calculated based on operating conditions, right?