TY - GEN
T1 - Impact of oxygenated fuel on diesel engine performance and emissions
AU - Hess, Howard S.
AU - Szybist, James
AU - Boehman, André L.
AU - Tijm, Peter J.A.
AU - Waller, Francis J.
PY - 2001
Y1 - 2001
N2 - In this experimental study, the effects of the addition of CETANER™ to a California diesel fuel at various blend levels (5% to 40% by mass) were evaluated using a Cummins ISB 5.9 Liter, 24-valve turbocharged direct injection diesel engine. CETANER™ is a product developed by Air Products and Chemicals, Inc. and can be manufactured from syngas through a two-stage process: (i) Liquid Phase Dimethyl Ether synthesis (LPDME™); and (ii) oxidative coupling to form long chain linear ethers from Dimethyl Ether (DME). When compared to other oxygenated components currently being researched, CETANER™ has several key advantages: (i) it is derived from a non-petroleum feedstock; (ii) it has a cetane number greater than 100; and (iii) it will have a cost comparable to diesel fuel. The impact of CETANER™ addition on several fuel properties (viscosity, API gravity, cloud point, pour point and calorific value) was determined for each of the CETANER™ blends. Particulate matter emissions and exhaust gas composition (CO, NO x and total hydrocarbons) were determined at eight steady-state engine operating conditions according to the AVL 8-Mode test protocol. Engine test results indicate that CETANER™ is effective in reducing particulate matter emissions at all blend levels tested without any modifications to engine operating parameters. However, peak power output decreases as CETANER™ blend level increases, due to a reduction in energy content. Pressure trace analysis revealed that, as CETANER™ blend level increases, peak pressure decreases slightly, combustion duration increases slightly and maximum heat release is reduced.
AB - In this experimental study, the effects of the addition of CETANER™ to a California diesel fuel at various blend levels (5% to 40% by mass) were evaluated using a Cummins ISB 5.9 Liter, 24-valve turbocharged direct injection diesel engine. CETANER™ is a product developed by Air Products and Chemicals, Inc. and can be manufactured from syngas through a two-stage process: (i) Liquid Phase Dimethyl Ether synthesis (LPDME™); and (ii) oxidative coupling to form long chain linear ethers from Dimethyl Ether (DME). When compared to other oxygenated components currently being researched, CETANER™ has several key advantages: (i) it is derived from a non-petroleum feedstock; (ii) it has a cetane number greater than 100; and (iii) it will have a cost comparable to diesel fuel. The impact of CETANER™ addition on several fuel properties (viscosity, API gravity, cloud point, pour point and calorific value) was determined for each of the CETANER™ blends. Particulate matter emissions and exhaust gas composition (CO, NO x and total hydrocarbons) were determined at eight steady-state engine operating conditions according to the AVL 8-Mode test protocol. Engine test results indicate that CETANER™ is effective in reducing particulate matter emissions at all blend levels tested without any modifications to engine operating parameters. However, peak power output decreases as CETANER™ blend level increases, due to a reduction in energy content. Pressure trace analysis revealed that, as CETANER™ blend level increases, peak pressure decreases slightly, combustion duration increases slightly and maximum heat release is reduced.
KW - Diesel combustion
KW - Fuel
KW - Oxygenate
KW - Particulate emissions
UR - https://www.scopus.com/pages/publications/0347536264
M3 - Conference contribution
AN - SCOPUS:0347536264
SN - 0791835332
SN - 9780791835333
T3 - Proceedings of the National Heat Transfer Conference
SP - 931
EP - 941
BT - Proceedings of the 2001 National Heat Transfer Conference Volume 1
T2 - 2001 National Heat Transfer Conference (NHTC2001)
Y2 - 10 June 2001 through 12 June 2001
ER -