I seek advice from experts on how to accurately calculate the boiler blowdown rate
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Due to issues with the flow meter in our factory’s boiler, it is not possible to determine the boiler’s blowdown rate accurately; attempts to calibrate the flow meter have been unsuccessful. Is there any other way to accurately calculate the boiler blowdown rate? I would appreciate some guidance from experts.
First, the boiler fuel emission rate is determined based on the fuel fed into the boiler and its calorific value. Then, the emission rate of pollutants is determined based on the concentrations of various pollutants in the fuel, in order to ascertain the actual emission rate of those pollutants. Ultimately, the boiler blowdown rate can be calculated based on the actual emission rate and the corresponding standard emission rate.
Textbook for Utility Equipment Engineers (3rd Edition) P171~P172
Anyway, if the gauge is inaccurate, no matter how good the algorithm is, it’s useless; it’s better to replace the faulty gauge as soon as possible
In addition to using flow meters, you can also calculate the boiler’s waste discharge rate by monitoring the temperature and humidity of the water at the boiler outlet, as well as by referring to industry standards such as the \"Comprehensive Pollutant Discharge Standards for Wastewater\" issued by environmental protection authorities