TY - JOUR
T1 - Ultrasonic atomization of highly viscous biodegradable oils for MQL applications
AU - Lefebure, Axel
AU - Shim, Dongha
N1 - Publisher Copyright:
© 2021, The Korean Society of Mechanical Engineers and Springer-Verlag GmbH Germany, part of Springer Nature.
PY - 2021/12
Y1 - 2021/12
N2 - This paper establishes the vibrating-mesh ultrasonic mist-generation of highly viscous biodegradable oils as a novel implementation for MQL (minimum quantity lubrication) applications. Initial studies on ultrasonic MQL have already been carried out, but the usage of highly viscous biodegradable oils in a non-diluted setup has never been explored. This research studied the atomization rate and mist droplet size distribution, influenced by oil viscosity, and actuator-related properties, such as mesh pore size and driving voltage. Through the FLDC (fibre liquid delivery column) method, using a 113 kHz vibrating mesh piezo actuator, solution feasibility was shown for three currently in-industry-used highly viscous MQL oils, including a maximum liquid viscosity of 37 cSt, higher than the previous record of 28 cSt for ultrasonic atomization. An atomization rate of 13.4 ml/h and mean droplet diameter of 27.5 µm were followingly achieved for this new maximum viscosity. The demonstrated setups and their novel atomization performance data were gathered in the form of a design guide, aiding in the future development of ultrasonically atomized viscous oils for MQL applications.
AB - This paper establishes the vibrating-mesh ultrasonic mist-generation of highly viscous biodegradable oils as a novel implementation for MQL (minimum quantity lubrication) applications. Initial studies on ultrasonic MQL have already been carried out, but the usage of highly viscous biodegradable oils in a non-diluted setup has never been explored. This research studied the atomization rate and mist droplet size distribution, influenced by oil viscosity, and actuator-related properties, such as mesh pore size and driving voltage. Through the FLDC (fibre liquid delivery column) method, using a 113 kHz vibrating mesh piezo actuator, solution feasibility was shown for three currently in-industry-used highly viscous MQL oils, including a maximum liquid viscosity of 37 cSt, higher than the previous record of 28 cSt for ultrasonic atomization. An atomization rate of 13.4 ml/h and mean droplet diameter of 27.5 µm were followingly achieved for this new maximum viscosity. The demonstrated setups and their novel atomization performance data were gathered in the form of a design guide, aiding in the future development of ultrasonically atomized viscous oils for MQL applications.
KW - Biodegradable oils
KW - Minimum quantity lubrication
KW - Piezoelectric actuation
KW - Ultrasonic atomization
KW - Vibrating mesh atomization
UR - https://www.scopus.com/pages/publications/85120794509
U2 - 10.1007/s12206-021-1122-y
DO - 10.1007/s12206-021-1122-y
M3 - Article
AN - SCOPUS:85120794509
SN - 1738-494X
VL - 35
SP - 5503
EP - 5516
JO - Journal of Mechanical Science and Technology
JF - Journal of Mechanical Science and Technology
IS - 12
ER -