The New Jersey Institute of Technology's
Electronic Theses & Dissertations Project

Title:	Modelling of oxygen diffusion in cork
Author:	Rane, Swapnil Shivputra
View Online:	njit-etd2018-013 (xiv, 70 pages ~ 1.5 MB pdf)
Department:	Department of Mechanical and Industrial Engineering
Degree:	Master of Science
Program:	Mechanical Engineering
Document Type:	Thesis
Advisory Committee:	Federici, John Francis (Committee chair) Datta, Dibakar (Committee member) Dias, Cristiano L. (Committee member)
Date:	2018-05
Keywords:	Gas diffusion Natural cork structures Natural cork
Availability:	Unrestricted
Abstract:	The primary objective of this project is to better understand gas diffusion through natural cork structures by comparing simulations of gas diffusion through natural cork to experimental measurements of oxygen gas diffusion through the same structure. The cork's internal structure is measured using x-ray computed tomography (CT). From the measured internal structure, a simple mapping is assumed converting the measured x-ray computed tomography images into a 3D map of local diffusion coefficient. Specifically, it is assured that the x-ray CT pixel value is inversely proportional to the diffusion coefficient of oxygen through the cork. A diffusion model for the cork structure was developed using finite commercial finite element method simulation software and the necessary boundary conditions. The primary intention is to create model which can help in understanding the ingress of oxygen through cork. By comparing simulation and experimental results, the role of the cork's internal structure in gas diffusion can be better understood.