OCR Text |
Show Quantifi cat ion of the system performance during the tests is based pr i maril y on the evaluation of the transient events recorded by the t o ta l hyd rocarbon analyzer and the monitoring o f particula t e s ( s oo t ), 02' CO2 , CO and NO produced during the t e sts. The peak in the record of the total hydrocarbon analyzer indicates the highest concentration during the breakthrough e vent while the area under t he recorded curve represents the tota l amount of hydrocarbons unburnt during the event. The c omparison of the conventional and Pyretron burners d emo ns trates very significant reduc tions in the peak value in the THC break through curves ( ca. factor of 30 to 100 ). Typical breakthr ough c u r ves are presented in Figure 2. Additionally , the mass of f l y ash, which is mos t ly s oot , generated has been reduced by approximately a factor of 3. Correlation analysis of the data obtained in the second series of RTP tests is presented in the form of a linear equation: where : y = dependent variable of interest xl = temperature x2 = partial pressure of oxygen bO,b1 ,b2 = coefficients of equations Values of these coefficients, their errors as well as the value of the squared coefficient R2 are presented in Table 2. Table 2 Dependent Coefficients / Standard Errors R2 Variable y bO b1 ( toK ) b2 ( P02 '%) Peak Area, mg 10.49 / 0.63 0.0003 / 0.0015 -0.66 / 0.098 0.957 Peak Height,ppm 13530 / 1830 -0.52 / 4.38 -620 / 287 0.673 Fi lter Weight,mg 11.6/ 0.86 0.0023 / 0.0021 -0.75 / 0.13 0.951 Peak CO,% -0.76 / 0.29 0.0017 / 0.00069 -0.054 / 0.045 0.846 Based on the error evaluation, consideration of the tests c onditions and the ranges of the dependent variables, all bO exc e p t t ha t for CO are significant, all b1 values are significant and a l l b2 values except for CO are significant. The values of R2 s how that the considered correlations are quite strong. |