| Title |
Combustion Characteristics of Cylindrical Premixed Burner using Different Baffle Plate and Flame Holes |
| Authors |
Pil Hyong Lee ; Sang Soon Hwang |
| DOI |
https://dx.doi.org/10.6110/KJACR.2017.29.7.350 |
| Keywords |
예혼합 버너 ; 원통형 예혼합 버너 ; 일산화탄소 ; 질소산화물 ; 열효율 Premixed Burner ; Cylindrical Premixed Burner ; CO ; NOx ; Thermal Efficiency |
| Abstract |
Premixed burner is a very strong candidate in household condensing gas boiler burner system because it has low CO and NOx emission with high thermal efficiency. The objective of this study was to determine combustion characteristics of cylindrical premixed burner using different baffle plate and flame holes. Results showed that cylindrical premixed flame mode could be changed into lift-off flame, blue flame, red flame, and green flame with increasing equivalence ratio. In particular, blue flame was found to be very stable at heating load of 8,820~35,280 kcal/h. NOx emission was under 26 ppm between 0.775 to 0.813 of equivalence ratio. CO emission was under 58 ppm under the same equivalence ratio. Thermal efficiency, a very important index in condensing gas boiler, was found to be above 90.13% under the same equivalence region. |