02727cas|a2200265 i 450000500170000000800410001703500150005810000190007324501170009226000520020930000110026149000270027250001060029950200580040552015990046365000370206265000360209965000350213570000330217070000430220370000520224671000390229881000590233785600650239620260817162952.0170399s1992    th  u m rtt   0|  a1eng d  a.b100891721 aTu, Ching-sung10aApplication of the bubble concept to the integrated air pollution control of the iron & steel industry in Taiwan  aBangkok :bAsian Institute of Technology,c1992  a118 p.1 aThesis ;vno. EV-92-08  aA thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering  aThesis (M.Eng.) - Asian Institute of Technology, 1992  aModeling is the key tool for any quantitative understanding of  atmospheric dispersion. A modified Gaussian plume model . was  employed in this study to calculate N02 and NO, concentrations. A  program in FORTRAN language was written to create meteorological  data file required in this applied model. Model results were  compared with measurements from 10 sites. There is a good agreement  between calculated values and measured values after the background  sources were taken into acc·ount. The wake effect of in-plant  building was evaluated and the sensitivity of the model computation  results to variation of parameters was assessed.  The distribution of highest 1-hour ground level NO,  concentrations from CSC were calculated hourly across an area of 10  km x 10 km around CSC for each month of 1989. The contributions of  each stack in CSC to the highest 1-hour NO, concentration were  calculated.  The bubble concept was applied to the strategy-making for NO,  emission reduction. During determination of priority for emission  reduction three major factors have been taken into account. They  are technical feasibility, cost effectiveness and air quality.  Steps for determining the priority list of stacks in CSC for NO,  emission reduction were set up. Finally, a referential strategy on  the basis of bubble concept was made by utilizing the modified  Gaussian plume model, marginal analysis and marginal substitution.  The total reduction of NO, emission and improvement of air quality  were calculated according to the individual contributions of stpcks  in the proposed list.  0aSteel industry and tradezTaiwan 0aIron industry and tradezTaiwan 0aAir quality managementzTaiwan1 aZhuang, Ya-Hui,eChairperson1 aSchroder, Hans,eExamination committee1 aBhattacharya, Sribas C.,eExamination Committee2 aMEA of R.O.C.,eScholarship donor 2 aAsian Institute of Technology.tThesis ;vno. EV-92-08  3Full-Textuhttp://203.159.5.9/ait-thesis/detail.php?q=B16621