A new slip velocity suitable for natural gas flows in energy applications. Issue 9 (3rd May 2019)

• Record Type: Journal Article
• Authors: Akbari, M.; Ghassemi, M.
• Is Part Of: Energy sources. Volume 41:Issue 9(2019)
• Page Start: 1116
• Page End: 1123
• Publication Date: 2019-05-03
• Subjects: Boltzmann equation -- energy -- kinetic theory -- natural gas -- slip velocity; Natural resources -- Periodicals; Energy consumption -- Periodicals; Energy consumption -- Climatic factors -- Periodicals; Energy conversion -- Periodicals; Energy conversion -- Environment aspects -- Periodicals; Power (Mechanics) -- Periodicals; 333.7905
• DOI: 10.1080/15567036.2018.1539145
• Languages: English
• ISSNs: 1556-7036

Abstract

ABSTRACT: Figuring out the natural gas behavior through micro/nanochannels is vital for accurate prediction of the rarefied flows and design optimization of Micro electro mechanical systems (MEMS) and Nano electro mechanical systems (NEMS) in energy applications. Continued with the previous work, introduction of a modified kinetic-based slip velocity for natural gas flows suitable for energy applications is the purpose of the current paper. In comparison with the previous work, this model includes an additional term due to compressibility factor gradient. We used the virial equation of state to calculate the compressibility factor gradient along the flow direction. The new model is verified with previously published results.