Effect of edge curvature on the entropy generation rate in micro/nano scale flakes of equal area Online publication date: Tue, 13-Sep-2022
by Saad Bin Mansoor; Bekir Sami Yilbas; Hussain Mohammad Al-Qahtani
International Journal of Exergy (IJEX), Vol. 39, No. 2, 2022
Abstract: Micro/nanoscale heat transport in low dimensional films remains vital in the design and sustainable operation of microelectronic devices. Heat conduction in 2D, microscale flakes of diamond with curvilinear geometry is investigated utilising the phonon radiative transport model. The form of the equation of phonon radiative transfer (EPRT) is arranged such that it applies to non-orthogonal coordinate systems. The entropy generation rate in a low dimensional film is formulated incorporating the phonon intensity distribution. Numerically-generated body-fitted grids are used in the solution of the EPRT. In the procedure adopted, the phonon intensity distribution is predicted first and later used to compute the entropy generation rate. This procedure is repeated for various edge curvatures and the effect of changing curvature on the entropy generation rate is studied. It is found that increasing edge curvature results in a decrease of the total entropy generation rate per unit depth.
Existing subscribers:
Go to Inderscience Online Journals to access the Full Text of this article.
If you are not a subscriber and you just want to read the full contents of this article, buy online access here.Complimentary Subscribers, Editors or Members of the Editorial Board of the International Journal of Exergy (IJEX):
Login with your Inderscience username and password:
Want to subscribe?
A subscription gives you complete access to all articles in the current issue, as well as to all articles in the previous three years (where applicable). See our Orders page to subscribe.
If you still need assistance, please email subs@inderscience.com
Our Blog 
Follow us on Twitter 
Visit us on Facebook