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Show which produced a firebox temperature of about 1,950oP, compared to 1,820oP for the third baseline test. The NOx emissions measured during these tests are presented in Figure 2. The NOx emissions for the advanced burner averaged 132 ppmvd (corrected to 3 percent excess OJ. This compares to 163 ppmvd measured on the HPS™ burner, and represents a decrease in NOx emissions of almost 20 percent. CO emissions were less than 10 ppmvd, and the THe concentration was 23 ppmvw. The HPSTM burner also produced eo emissions less than 10 ppmvd. The HPS™ THe emission rate was 5 ppmvw, which is lower than that obtained with the advanced burner. DRE for the HPS™ burner was calculated to be > 99.98 percent, while the advanced burner achieved > 99.99 percent. Tests 5 and 6 on the advanced burner were conducted with the uninsulated furnace, which produced a firebox temperature of 1,450oP compared to the 1,820oP measured in the third baseline test on the HPS™ burner. The lower firebox temperature should produce better NOx results, but should also m*e it more difficult to achieve the desired DRE. As expected, the NOx emissions dropped to an average of 118 ppmvd, which is a 30 percent reduction from the HPS™ results. Once again, the CO emissions for the two burners were comparable. However, even with the lower firebox temperature in the advanced burner test, the THe emissions decreased to 18 ppmvw, and the DRE was maintained at >99.995 percent. Tests 4 and 7 on the advanced burner are comparable to the conditions during the second baseline test. These tests were performed firing No.6 fuel oil with approximately 275°P air preheat. Test 4 was performed on the insulated furnace and had a firebox temperature of 2,050oP, compared to test 7 on the uninsulated furnace with a firebox temperature of 1,485°P. The baseline test was performed without insulation and produced a firebox temperature of 1 ,870oP. As seen in Pigure 3, baseline test 2 on the HPS™ burner produced NOx emissions of 192 ppmvd (@ 3 % OJ, while advanced burner tests 4 and 7 had corrected NOx concentrations measuring 145 and 130 ppmvd, respectively. These values represent decreases of 25 and 32 11 |