Optimization of the combustion of blends of domestic fuel oil and cottonseed oil in a non-modified domestic boiler

Investigation on improving the thermal efficiency of a mini boiler fired with straight vegetable oils

“…y The efficiency of the combustion system was quite low, in the range of 21.49-37.48% and 25.93-39.48 % when the mini boiler fabricated with four fire tubes is fired with and without additional air supply. This range is comparable to report of literatures that, Daho et al [7] show only 22-27% for cotton seed oil and 14-24% for biodiesel Bazooyar et al [14]. If it is commercialised with the design modification optimize the number of tubes and passes, the thermal efficiency will further increase.…”

“…They concluded that crude sunflower oil can be used as the substitute with fossil diesel fuel and suggested oil preheating and advanced technology in fuel injection/atomization overcome the problem of high viscosity. Daho et al [7] tested cotton seed oil in a commercial boiler and obtained thermal efficiency of THERMAL SCIENCE: Year 2020, Vol. 24 22-27%.…”

Economy of a utility boiler power plant fueled with vegetable oil, biodiesel, petrodiesel and their prevalent blends

“…The operation of boilers with renewable fuels (vegetable oils, biodiesels, and dimethyl ether) has been studied by many researchers (Barnes et al, 2010;Daho et al, 2009;González-González et al, 2014;Jiru et al, 2010;Lee et al, 2004;Macor and Pavanello, 2009;Ng and Gan, 2010;Pereira et al, 2014;San José et al, 2015;Tashtoush et al, 2003). As the yearly prices of such alternatives in the global/domestic markets are quite competitive with those for petrodiesel, most of them assumed that their usage is economically feasible and costs are influenced by the use methyl esters in boilers.…”

“…As the yearly prices of such alternatives in the global/domestic markets are quite competitive with those for petrodiesel, most of them assumed that their usage is economically feasible and costs are influenced by the use methyl esters in boilers. The expenses of depreciation and maintenance, however, are worthy of scrutiny when boilers fuel with biodiesel instead of petrodiesel, since some researchers have shown that biodiesel usage in the boiler is problematic, e.g., coking and polymerization are more probable during biodiesel combustion (Barnes et al, 2010;Daho et al, 2009).…”

Effect of Additional Air Supply for Combustion of Straight Vegetable Oil Blends on Performance of Mini Hot Water Generator

“…Daho et al [25] studied the influence of combustion parameters such as equivalence ratio and fuel pressure on combustion and emission performance of blends of 10 to 70% refined cottonseed oil (RCO) with domestic fuel-oil (DFO) in a non-modified DFO burner.…”