Nombre: RICARDO PESSOTI GARUZZI
Tipo: MSc dissertation
Fecha de publicación: 08/03/2017
Supervisor:
Nombre |
Rol |
|---|---|
| OLDRICH JOEL ROMERO | Advisor * |
Junta de examinadores:
| Nombre |
Rol |
|---|---|
| DANIEL DA CUNHA RIBEIRO | Co advisor * |
| LEANDRA ALTOÉ | External Examiner * |
| OLDRICH JOEL ROMERO | Advisor * |
Resumen: Photovoltaic solar energy is a very attractive option, though it is still expensive
compared to traditional sources. One way to make the most competitive photovoltaic
solar cell on the market is to reduce the amount of material used. The decrease in
thickness encounters physical and operational limits associated with the deposition
method. One of them, and that is the object of study in this work, is the limit of minimum
flow (low-flow limit). This work presents the numerical simulation of the process of
coating Newtonian, non-Newtonian and Newtonian fluids with particles using the VOF
(Volume Of Fluid) technique to determine the minimum flow limit of this process. In the
case of Newtonian with particles besides the VOF the DPM (Discrete Phase Model)
technique is used. The solution domain of the governing equations in the twodimensional
plane is restricted to the downstream part of the coating bar. As a result,
the increase in capillary number results in an increase in the minimum thickness, and
with increasing importance of non-Newtonian behavior the minimum film thickness
decreases. For the particles there is an analysis of their concentration, with the
occurrence of a problem of high quantity in the coating region, it being desired to occur
in the region of interest of the deposited film. The work related to flow with newtonian
fluid was published in two journals, as shown in APPENDIX A and APPENDIX B. In
addition, an economic analysis, also published, as can be seen in APPENDIX C, and
the details are given in APPENDIX E: FINANCIAL MANAGEMENT.
