TY - GEN
T1 - Electrostatic atomization of hydrocarbon fuels and bio-alcohols for engine applications
AU - Agathou, Maria S.
AU - Kyritsis, Dimitrios C.
PY - 2011
Y1 - 2011
N2 - Electrostatically assisted sprays of butanol were established and compared with the ones of fuels of automotive interest, namely ethanol and heptane. First, electrospray phenomenology was investigated through high-speed visualization for a variety of conditions. Then, spray structure was studied through droplet size and velocity measurements, using Phase Doppler Anemometry, for a wide range of flow rates and applied voltages. Particular emphasis was placed on the determination of the dependence of droplet size and velocity on mass flow rate and applied electric field. Visualization and measurements of droplet size and speed revealed an unstable and polydisperse electrospray behavior for most conditions. Several factors were identified as responsible for this unstable behavior and were investigated experimentally for the butanol case. These included: oscillations of e-spray menisci, droplet disruption due to Coulombic fission and secondary droplet break-up because of high Weber numbers.
AB - Electrostatically assisted sprays of butanol were established and compared with the ones of fuels of automotive interest, namely ethanol and heptane. First, electrospray phenomenology was investigated through high-speed visualization for a variety of conditions. Then, spray structure was studied through droplet size and velocity measurements, using Phase Doppler Anemometry, for a wide range of flow rates and applied voltages. Particular emphasis was placed on the determination of the dependence of droplet size and velocity on mass flow rate and applied electric field. Visualization and measurements of droplet size and speed revealed an unstable and polydisperse electrospray behavior for most conditions. Several factors were identified as responsible for this unstable behavior and were investigated experimentally for the butanol case. These included: oscillations of e-spray menisci, droplet disruption due to Coulombic fission and secondary droplet break-up because of high Weber numbers.
KW - Automotive applications
KW - Bio-butanol
KW - Electrostatic sprays
KW - Renewable fuels
UR - http://www.scopus.com/inward/record.url?scp=84903638959&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:84903638959
SN - 9788660550165
T3 - Proceedings of the 24th International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems, ECOS 2011
SP - 496
EP - 507
BT - Proceedings of the 24th International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems, ECOS 2011
T2 - 24th International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems, ECOS 2011
Y2 - 4 July 2011 through 7 July 2011
ER -
