Dust Sampling Method Optimization at Low Concentration of Super Low Emission
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Abstract
With the concept of super low emission, the dust testing has got more difficult as the lower and lower concentration of power plant dust emission. In order to improve the accuracy of sampling and testing, we carried on comparison tests between different sampling mouth size and different sampling time, calculated the test deviation under different sampling volume, to find out a feasible optimization method. The results show that conventional dust sampling method can be optimized by increasing the sampling mouth diameter or prolonging the sampling time to increase sampling volume, when the sampling volume reached to more than 2m3, the accuracy of sampling and test results can be effectively improved. This work provides some reference for the establishment of low concentration dust sampling and testing standard in our country.
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