Vienna, March 17 2014 - MDXmdx2.plm.automation.siemens.com/sites/default/files/Presentation/S… ·...
Transcript of Vienna, March 17 2014 - MDXmdx2.plm.automation.siemens.com/sites/default/files/Presentation/S… ·...
Conference CD-adapco
Vienna, March 17th 2014
Heatpipe Natural Cooling
Denis CORNU
© ALSTOM 2013. All rights reserved. Information contained in this document is indicative only. No representation or warranty is given or should be relied on that it is complete or correct or will apply to any particular project. This will depend on the technical and commercial circumstances. It is provided without liability and is subject to change without notice. Reproduction, use or disclosure to third parties, without express written authority, is strictly prohibited.
Presentation title - 27/03/2014 – P 2
Agenda
- Train aerodynamics background information
- Natural cooling
- STAR-CCM+
- Optimizations
- Conclusions
© ALSTOM 2013. All rights reserved. Information contained in this document is indicative only. No representation or warranty is given or should be relied on that it is complete or correct or will apply to any particular project. This will depend on the technical and commercial circumstances. It is provided without liability and is subject to change without notice. Reproduction, use or disclosure to third parties, without express written authority, is strictly prohibited.
Presentation title - 27/03/2014 – P 3
Train aerodynamics background information
© ALSTOM 2013. All rights reserved. Information contained in this document is indicative only. No representation or warranty is given or should be relied on that it is complete or correct or will apply to any particular project. This will depend on the technical and commercial circumstances. It is provided without liability and is subject to change without notice. Reproduction, use or disclosure to third parties, without express written authority, is strictly prohibited.
Presentation title - 27/03/2014 – P 4
Train aerodynamics background information
Alstom Thermal Power
Alstom Transport
Alstom Grid
Alstom Renewable Power
© ALSTOM 2013. All rights reserved. Information contained in this document is indicative only. No representation or warranty is given or should be relied on that it is complete or correct or will apply to any particular project. This will depend on the technical and commercial circumstances. It is provided without liability and is subject to change without notice. Reproduction, use or disclosure to third parties, without express written authority, is strictly prohibited.
Presentation title - 27/03/2014 – P 5
Train aerodynamics background information
2 train cars geometry truncated
Truncation
© ALSTOM 2013. All rights reserved. Information contained in this document is indicative only. No representation or warranty is given or should be relied on that it is complete or correct or will apply to any particular project. This will depend on the technical and commercial circumstances. It is provided without liability and is subject to change without notice. Reproduction, use or disclosure to third parties, without express written authority, is strictly prohibited.
Presentation title - 27/03/2014 – P 6
Train aerodynamics background information
Mesh
15 000 000 cells
Prism layer: 5 cells
Trimmed
Base size: 100 mm
© ALSTOM 2013. All rights reserved. Information contained in this document is indicative only. No representation or warranty is given or should be relied on that it is complete or correct or will apply to any particular project. This will depend on the technical and commercial circumstances. It is provided without liability and is subject to change without notice. Reproduction, use or disclosure to third parties, without express written authority, is strictly prohibited.
Presentation title - 27/03/2014 – P 7
Train aerodynamics background information
Physics
- Constant density
- K-epsilon turbulence
- Segregated flow
- Steady
© ALSTOM 2013. All rights reserved. Information contained in this document is indicative only. No representation or warranty is given or should be relied on that it is complete or correct or will apply to any particular project. This will depend on the technical and commercial circumstances. It is provided without liability and is subject to change without notice. Reproduction, use or disclosure to third parties, without express written authority, is strictly prohibited.
Presentation title - 27/03/2014 – P 8
Train aerodynamics background information
Results
Electrical Box which have
to be cooled
© ALSTOM 2013. All rights reserved. Information contained in this document is indicative only. No representation or warranty is given or should be relied on that it is complete or correct or will apply to any particular project. This will depend on the technical and commercial circumstances. It is provided without liability and is subject to change without notice. Reproduction, use or disclosure to third parties, without express written authority, is strictly prohibited.
Presentation title - 27/03/2014 – P 9
Train aerodynamics background information
Results: zoom on electrical box
-The air flow is blocked upstream by different boxes.
-The blocking equipments are different between the 2 displacement directions
Electrical Box
INPUT?
OUTPUT?
© ALSTOM 2013. All rights reserved. Information contained in this document is indicative only. No representation or warranty is given or should be relied on that it is complete or correct or will apply to any particular project. This will depend on the technical and commercial circumstances. It is provided without liability and is subject to change without notice. Reproduction, use or disclosure to third parties, without express written authority, is strictly prohibited.
Presentation title - 27/03/2014 – P 10
Train aerodynamics background information
Results
- Reverse flow in the box / train displacement
INPUT?
OUTPUT?
© ALSTOM 2013. All rights reserved. Information contained in this document is indicative only. No representation or warranty is given or should be relied on that it is complete or correct or will apply to any particular project. This will depend on the technical and commercial circumstances. It is provided without liability and is subject to change without notice. Reproduction, use or disclosure to third parties, without express written authority, is strictly prohibited.
Presentation title - 27/03/2014 – P 11
Natural cooling of electrical box
Air flow velocities on scoops inlet
Input depression at the inlet creates an outlet while the air flow is entering by the dedicated outlet
© ALSTOM 2013. All rights reserved. Information contained in this document is indicative only. No representation or warranty is given or should be relied on that it is complete or correct or will apply to any particular project. This will depend on the technical and commercial circumstances. It is provided without liability and is subject to change without notice. Reproduction, use or disclosure to third parties, without express written authority, is strictly prohibited.
Presentation title - 27/03/2014 – P 12
Natural cooling
© ALSTOM 2013. All rights reserved. Information contained in this document is indicative only. No representation or warranty is given or should be relied on that it is complete or correct or will apply to any particular project. This will depend on the technical and commercial circumstances. It is provided without liability and is subject to change without notice. Reproduction, use or disclosure to third parties, without express written authority, is strictly prohibited.
Presentation title - 27/03/2014 – P 13
Natural cooling of electrical box
Restricted Study domain
scoop
Restricted study domain: Length, width, height = 3 * dimensions of the box
© ALSTOM 2013. All rights reserved. Information contained in this document is indicative only. No representation or warranty is given or should be relied on that it is complete or correct or will apply to any particular project. This will depend on the technical and commercial circumstances. It is provided without liability and is subject to change without notice. Reproduction, use or disclosure to third parties, without express written authority, is strictly prohibited.
Presentation title - 27/03/2014 – P 14
Natural cooling of electrical box
Scoops choice:
© ALSTOM 2013. All rights reserved. Information contained in this document is indicative only. No representation or warranty is given or should be relied on that it is complete or correct or will apply to any particular project. This will depend on the technical and commercial circumstances. It is provided without liability and is subject to change without notice. Reproduction, use or disclosure to third parties, without express written authority, is strictly prohibited.
Presentation title - 27/03/2014 – P 15
Natural cooling of electrical box
Scoops choice:
© ALSTOM 2013. All rights reserved. Information contained in this document is indicative only. No representation or warranty is given or should be relied on that it is complete or correct or will apply to any particular project. This will depend on the technical and commercial circumstances. It is provided without liability and is subject to change without notice. Reproduction, use or disclosure to third parties, without express written authority, is strictly prohibited.
Presentation title - 27/03/2014 – P 16
Natural cooling of electrical box
Scoop choice: results comparison
G01 G02 G03 G04 G05 G06 G07 G08 G09 G10 G11 G12
Average air flow velocity (m/s)
G01 G02 G03 G04 G05 G06 G07 G08 G09 G10 G11 G12
Air flow rate(kg/s)
Choice: SCOOP configuration G10
Vtrain=100km/h
© ALSTOM 2013. All rights reserved. Information contained in this document is indicative only. No representation or warranty is given or should be relied on that it is complete or correct or will apply to any particular project. This will depend on the technical and commercial circumstances. It is provided without liability and is subject to change without notice. Reproduction, use or disclosure to third parties, without express written authority, is strictly prohibited.
Presentation title - 27/03/2014 – P 17
Natural cooling of electrical box
New aerolic design - Phase 1:
© ALSTOM 2013. All rights reserved. Information contained in this document is indicative only. No representation or warranty is given or should be relied on that it is complete or correct or will apply to any particular project. This will depend on the technical and commercial circumstances. It is provided without liability and is subject to change without notice. Reproduction, use or disclosure to third parties, without express written authority, is strictly prohibited.
Presentation title - 27/03/2014 – P 18
Natural cooling of electrical box
Air flow 1
New aerolic design - Phase 1:
© ALSTOM 2013. All rights reserved. Information contained in this document is indicative only. No representation or warranty is given or should be relied on that it is complete or correct or will apply to any particular project. This will depend on the technical and commercial circumstances. It is provided without liability and is subject to change without notice. Reproduction, use or disclosure to third parties, without express written authority, is strictly prohibited.
Presentation title - 27/03/2014 – P 19
Natural cooling of electrical box
Air flow 2
New aerolic design – Phase 2:
© ALSTOM 2013. All rights reserved. Information contained in this document is indicative only. No representation or warranty is given or should be relied on that it is complete or correct or will apply to any particular project. This will depend on the technical and commercial circumstances. It is provided without liability and is subject to change without notice. Reproduction, use or disclosure to third parties, without express written authority, is strictly prohibited.
Presentation title - 27/03/2014 – P 20
Natural cooling of electrical box
Air flow 2 improved
New aerolic design – Phase 3:
© ALSTOM 2013. All rights reserved. Information contained in this document is indicative only. No representation or warranty is given or should be relied on that it is complete or correct or will apply to any particular project. This will depend on the technical and commercial circumstances. It is provided without liability and is subject to change without notice. Reproduction, use or disclosure to third parties, without express written authority, is strictly prohibited.
Presentation title - 27/03/2014 – P 21
Natural cooling of electrical box
Air flow 1: passes through the condenser from front to back (along x)
Air flow 2: passes over the condenser, thus creating a depression
Air flow 1
Air flow 2 improved
New aerolic design – Phase 3:
© ALSTOM 2013. All rights reserved. Information contained in this document is indicative only. No representation or warranty is given or should be relied on that it is complete or correct or will apply to any particular project. This will depend on the technical and commercial circumstances. It is provided without liability and is subject to change without notice. Reproduction, use or disclosure to third parties, without express written authority, is strictly prohibited.
Presentation title - 27/03/2014 – P 22
Natural cooling of electrical box
Results: Configuration Air flow rate (kg/s)
Initial 10%
Phase 1 40%
Phase 2 50%
Phase 3 59%
Phase 4
(less pressure drop on the
condenser)
100%
© ALSTOM 2013. All rights reserved. Information contained in this document is indicative only. No representation or warranty is given or should be relied on that it is complete or correct or will apply to any particular project. This will depend on the technical and commercial circumstances. It is provided without liability and is subject to change without notice. Reproduction, use or disclosure to third parties, without express written authority, is strictly prohibited.
Presentation title - 27/03/2014 – P 23
Natural cooling of electrical box
Results:
© ALSTOM 2013. All rights reserved. Information contained in this document is indicative only. No representation or warranty is given or should be relied on that it is complete or correct or will apply to any particular project. This will depend on the technical and commercial circumstances. It is provided without liability and is subject to change without notice. Reproduction, use or disclosure to third parties, without express written authority, is strictly prohibited.
Presentation title - 27/03/2014 – P 24
Natural cooling of electrical box
Improvements in this area to prevent detachments
© ALSTOM 2013. All rights reserved. Information contained in this document is indicative only. No representation or warranty is given or should be relied on that it is complete or correct or will apply to any particular project. This will depend on the technical and commercial circumstances. It is provided without liability and is subject to change without notice. Reproduction, use or disclosure to third parties, without express written authority, is strictly prohibited.
Presentation title - 27/03/2014 – P 25
Natural cooling of electrical box
Pressure drop concept
For the concept of the depression on the condenser, this work could be carried out under the shape of a tuyere for a maximum velocity and
a depression
Optimizations of design like opening size, contraction coefficient of the
tuyere…
© ALSTOM 2013. All rights reserved. Information contained in this document is indicative only. No representation or warranty is given or should be relied on that it is complete or correct or will apply to any particular project. This will depend on the technical and commercial circumstances. It is provided without liability and is subject to change without notice. Reproduction, use or disclosure to third parties, without express written authority, is strictly prohibited.
Presentation title - 27/03/2014 – P 26
Natural cooling of electrical box
Air inlet in the upper part of the box
To favor boxes located in middle of the train, it could be possible to take air flow near roof and to blow into
the condenser
© ALSTOM 2013. All rights reserved. Information contained in this document is indicative only. No representation or warranty is given or should be relied on that it is complete or correct or will apply to any particular project. This will depend on the technical and commercial circumstances. It is provided without liability and is subject to change without notice. Reproduction, use or disclosure to third parties, without express written authority, is strictly prohibited.
Presentation title - 27/03/2014 – P 27
Natural cooling of electrical box
3D SHAPE
© ALSTOM 2013. All rights reserved. Information contained in this document is indicative only. No representation or warranty is given or should be relied on that it is complete or correct or will apply to any particular project. This will depend on the technical and commercial circumstances. It is provided without liability and is subject to change without notice. Reproduction, use or disclosure to third parties, without express written authority, is strictly prohibited.
Presentation title - 27/03/2014 – P 28
Optimizations
© ALSTOM 2013. All rights reserved. Information contained in this document is indicative only. No representation or warranty is given or should be relied on that it is complete or correct or will apply to any particular project. This will depend on the technical and commercial circumstances. It is provided without liability and is subject to change without notice. Reproduction, use or disclosure to third parties, without express written authority, is strictly prohibited.
Presentation title - 27/03/2014 – P 29
Optimization were made with optimate +, a STAR-CCM+ add-on The targets are : - increase air flow rate in the heat pipes - improve the uniformity of the incoming air flow
baffles
Heat pipes
Scoop
© ALSTOM 2013. All rights reserved. Information contained in this document is indicative only. No representation or warranty is given or should be relied on that it is complete or correct or will apply to any particular project. This will depend on the technical and commercial circumstances. It is provided without liability and is subject to change without notice. Reproduction, use or disclosure to third parties, without express written authority, is strictly prohibited.
Presentation title - 27/03/2014 – P 30
Genetic parameters: - number of baffles - 2 dimensions (height & length) - spaces between baffles
© ALSTOM 2013. All rights reserved. Information contained in this document is indicative only. No representation or warranty is given or should be relied on that it is complete or correct or will apply to any particular project. This will depend on the technical and commercial circumstances. It is provided without liability and is subject to change without notice. Reproduction, use or disclosure to third parties, without express written authority, is strictly prohibited.
Presentation title - 27/03/2014 – P 31
© ALSTOM 2013. All rights reserved. Information contained in this document is indicative only. No representation or warranty is given or should be relied on that it is complete or correct or will apply to any particular project. This will depend on the technical and commercial circumstances. It is provided without liability and is subject to change without notice. Reproduction, use or disclosure to third parties, without express written authority, is strictly prohibited.
Presentation title - 27/03/2014 – P 32
Uniformity
Air flow rate
© ALSTOM 2013. All rights reserved. Information contained in this document is indicative only. No representation or warranty is given or should be relied on that it is complete or correct or will apply to any particular project. This will depend on the technical and commercial circumstances. It is provided without liability and is subject to change without notice. Reproduction, use or disclosure to third parties, without express written authority, is strictly prohibited.
Presentation title - 27/03/2014 – P 33
Best optimal case
Reference case
© ALSTOM 2013. All rights reserved. Information contained in this document is indicative only. No representation or warranty is given or should be relied on that it is complete or correct or will apply to any particular project. This will depend on the technical and commercial circumstances. It is provided without liability and is subject to change without notice. Reproduction, use or disclosure to third parties, without express written authority, is strictly prohibited.
Presentation title - 27/03/2014 – P 34
Best optimal case Reference case
© ALSTOM 2013. All rights reserved. Information contained in this document is indicative only. No representation or warranty is given or should be relied on that it is complete or correct or will apply to any particular project. This will depend on the technical and commercial circumstances. It is provided without liability and is subject to change without notice. Reproduction, use or disclosure to third parties, without express written authority, is strictly prohibited.
Presentation title - 27/03/2014 – P 35
Conclusion
© ALSTOM 2013. All rights reserved. Information contained in this document is indicative only. No representation or warranty is given or should be relied on that it is complete or correct or will apply to any particular project. This will depend on the technical and commercial circumstances. It is provided without liability and is subject to change without notice. Reproduction, use or disclosure to third parties, without express written authority, is strictly prohibited.
Presentation title - 27/03/2014 – P 36
- The ongoing development of a fanless cooling system will allow us to limit noise and mass
- STAR-CCM+ helped us to reach quickly our objectives
- Optimate+ is well integrated and has enabled us to save engineering time
- The railway scale is large and our models quite complex and big. But STAR-CCM + is able to manage quite easily.
Conclusion
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