dc.contributor.author |
Souza, G.R.
|
|
dc.contributor.author |
Moreira, T.A.
|
|
dc.contributor.author |
Vosnika, A.
|
|
dc.contributor.author |
Ribatski, G.
|
|
dc.date.accessioned |
2015-04-23T07:11:25Z |
|
dc.date.available |
2015-04-23T07:11:25Z |
|
dc.date.issued |
2014 |
|
dc.description.abstract |
Paper presented to the 10th International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics, Florida, 14-16 July 2014. |
en_ZA |
dc.description.abstract |
This work presents the results of numerical simulations and
experimental evaluation of a micro heat spreader applied to the
cold start of internal combustion engines fuelled with ethanol.
At low temperatures (below 11 °C), using only ethanol as fuel,
engines are unable to start. So, it was adopted as solution in
Brazil the use of gasoline to assist the first start. The gasoline is
contained in an additional small reservoir implying on safety
concerns. Additionally, the use of gasoline causes an increase
of emissions compared with the use of only ethanol. Therefore,
in the present study a micro heat spreader containing an
electrical heater was developed in order to heat up the ethanol
and permit the engine start under ambient temperatures down to
-10 °C. Based on this, numerical simulations were performed
using Computational Fluid Dynamics (CFD) software to predict
the thermal behaviour of the device. Then, based on these
simulations, a micro heat spreader was fabricated and
experimentally evaluated. Good agreement between
experimental and simulated results was obtained. Based on the
initial results, the heat spreader seems to attend the
requirements of its application. |
en_ZA |
dc.description.librarian |
dc2015 |
en_ZA |
dc.format.extent |
5 pages |
en_ZA |
dc.format.medium |
PDF |
en_ZA |
dc.identifier.citation |
Souza, GR, Moreira, TA, Vosnika, A & Ribatski, G 2014, 'Experimental and numerical simulation of single-phase flow in a micro heat spreader applied to the cold start of internal combustion engines fueled with ethanol', Paper presented to the 10th International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics, Florida, 14-16 July 2014. |
en_ZA |
dc.identifier.isbn |
97817759206873 |
|
dc.identifier.uri |
http://hdl.handle.net/2263/44493 |
|
dc.publisher |
International Conference on Heat Transfer, Fluid Mechanics and Thermodynamics |
en_ZA |
dc.rights |
© 2014 University of Pretoria. All rights reserved. The copyright in this work vests in the University of Pretoria. No part of this work may be reproduced or transmitted in any form or by any means, without the prior written permission of the University of Pretoria. |
en_ZA |
dc.subject |
Micro heat spreader |
en_ZA |
dc.subject |
Internal combustion engines |
en_ZA |
dc.subject |
Electrical heater |
en_ZA |
dc.subject |
Computational fluid dynamics (CFD) |
en_ZA |
dc.title |
Experimental and numerical simulation of single-phase flow in a micro heat spreader applied to the cold start of internal combustion engines fueled with ethanol |
en_ZA |
dc.type |
Presentation |
en_ZA |