TY - JOUR
T1 - Oxy-oil combustion characteristics of an existing furnace
AU - Chi, Chung Cheng
AU - Lin, Ta Hui
N1 - Funding Information:
This work was supported by the National Science Council of ROC (contracts: NSC 100-3113-P-006-006 and NSC 101-3113-P-006-010) and China Steel Corporation.
PY - 2013
Y1 - 2013
N2 - This study examined the operational characteristics of an air-oil furnace adapted for oxy-oil combustion. A 300kWth multi-fuel combustion test furnace at National Cheng-Kung University in Tainan, Taiwan was chosen as the experimental facility. The effect of oxygen enrichment (from 21% to 100%) on the operational characteristics of heavy oil combustion in the retrofitted furnace with flue gas recirculation was examined along with the influences of operating pressure. The experiment results include temperature variation, pressure distribution and flue gas composition (O2, CO2, CO, NO, SO2). Due to air leakage, CO2 concentration in the flue gas was much lower than the expected value. CO2 concentration was increased by oxygen enrichment from 13% to 34.4% and 14.7% to 61.1% in sub-atmospheric and over-atmospheric operation respectively, with air leakage estimated at 30% and 10% of total flue gas (vol.%, wet basis). The transition from air-oil to oxy-oil combustion did not bring negative impacts to the flame stability or unexpected changes to the operational characteristics.
AB - This study examined the operational characteristics of an air-oil furnace adapted for oxy-oil combustion. A 300kWth multi-fuel combustion test furnace at National Cheng-Kung University in Tainan, Taiwan was chosen as the experimental facility. The effect of oxygen enrichment (from 21% to 100%) on the operational characteristics of heavy oil combustion in the retrofitted furnace with flue gas recirculation was examined along with the influences of operating pressure. The experiment results include temperature variation, pressure distribution and flue gas composition (O2, CO2, CO, NO, SO2). Due to air leakage, CO2 concentration in the flue gas was much lower than the expected value. CO2 concentration was increased by oxygen enrichment from 13% to 34.4% and 14.7% to 61.1% in sub-atmospheric and over-atmospheric operation respectively, with air leakage estimated at 30% and 10% of total flue gas (vol.%, wet basis). The transition from air-oil to oxy-oil combustion did not bring negative impacts to the flame stability or unexpected changes to the operational characteristics.
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U2 - 10.1016/j.apenergy.2012.09.033
DO - 10.1016/j.apenergy.2012.09.033
M3 - Article
AN - SCOPUS:84870760379
SN - 0306-2619
VL - 102
SP - 923
EP - 930
JO - Applied Energy
JF - Applied Energy
ER -