Abstract
Thermodynamical processes and fluid mechanics phenomena occurring in an unlubricated piston-cylinder gas spring are investigated. Existing instantaneous heat transfer correlations are not applicable to the piston-cylinder compressed volumes. Accurate prediction of the transient thermal properties, heat transfer and fluid flows for the high performance, tight tolerance and lubricant-free gas compressors (e.g. cryo-cooling industry) is of high industrial importance. Research is here done with the use of ANSYS CFX finite-volume numerical package, modelling the closed fluid domain in a valveless non-lubricated one-piston-cylinder gas spring. Obtained numerically simulated values are compared to experimentally measured pressure and heat-flux data; very good agreement is observed. Broad discussion and conclusions with regard to thermodynamic and fluid-flow phenomena occurring are presented.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
