| 英文摘要 |
The main objective of the present study is to operate a pilot stack system to establish a database of measurements of stationary sources. This database was subject to further statistical analysis for performance proficiency. Other objective is to improve, operate and maintain a device (simulating a stack) for validating the measurement of particulate from stationary sources. According to the analysis of variance, the duct velocity and dust feeder rate were two of the most influential factor in determining the aerosol concentrations in the stack and evaluating the sampling performance of the private certified laboratories by the statistical analysis model of 2001~2004 year. In gas, we prepare three kinds of mixing gas of different concentration (CO, CO2 and O2) to provide measurement.
Assessing the particles concentration in the stack in the past, the sampling sensor directly stretched into the stack and sampled. The temperature of the stack is relatively high and the pollutant discharged the stack, temperature of air reduces and caused saturation, and then produces homogeneity or heterogeneous nucleation. If sample directly under the high-temperature state in the stack, there may be phenomenon underestimated in the particles concentration. In the same time, conferring the device of moisture in the different coagulation result of materials and the other condense of materials evaluated possibility.
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