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July 4, 2017, 09:11 |
Need therm.dat gas.dat mech.dat files
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#1 |
New Member
Sanket
Join Date: Jul 2017
Posts: 20
Rep Power: 9 |
Hello,
I am working on simulation of RCCI engine. In which E85(Ethanol 85%and 15%Gasoline) as primery fuel(port injection) and diesel as secondary fuel. So in converge software I needs therm.dat gas.dat mech.dat files. Thank you |
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July 4, 2017, 11:23 |
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#2 |
Senior Member
Tobias
Join Date: May 2016
Location: Germany
Posts: 295
Rep Power: 11 |
Hi Sanket,
maybe look here for suited reaction mechanisms: https://www.erc.wisc.edu/chemicalreaction.php https://combustion.llnl.gov/mechanisms http://c3.nuigalway.ie/mechanisms.html |
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July 4, 2017, 12:50 |
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#3 |
New Member
Sanket
Join Date: Jul 2017
Posts: 20
Rep Power: 9 |
Thank you for your reply
This reaction files are for perticular fuel. But in my case combined combustion of ethanol and diesel will occure. So which files should i use? |
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July 5, 2017, 15:28 |
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#4 |
New Member
Yijin Mao
Join Date: Jun 2017
Location: Convergent Science, Madison WI
Posts: 20
Rep Power: 9 |
Sanket31594,
I think this published paper could help. http://www.sciencedirect.com/science...952?via%3Dihub You could request the mech.dat and therm.dat through the author. On gas.dat, you could use air which is default in Studio. |
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July 6, 2017, 00:08 |
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#5 |
New Member
Sanket
Join Date: Jul 2017
Posts: 20
Rep Power: 9 |
Or can I use merged file of ethanol, iso-octane and n-haptane?
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July 6, 2017, 03:38 |
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#6 | |
Senior Member
Tobias
Join Date: May 2016
Location: Germany
Posts: 295
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Quote:
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July 6, 2017, 07:57 |
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#7 |
New Member
Sanket
Join Date: Jul 2017
Posts: 20
Rep Power: 9 |
I have attached files.
can I use this files for my case? please check and tell me. I am too much confused about this. Or should I use files of SI8_engine_premix_E85 example case of v2.4? |
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July 6, 2017, 11:24 |
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#8 |
New Member
Yijin Mao
Join Date: Jun 2017
Location: Convergent Science, Madison WI
Posts: 20
Rep Power: 9 |
Sanket,
Yes. The files in SI8_engine_premix_E85 should be used for this RCCI engine case. The attached mechanism should not be used as it does not include ethanol. p.s. 1) find SI8_engine_premix_E85 by File->Load example case->Internal_Combustion_Engines->Gasoline_spark_ignition_PFI->SI8_engine_premix_E85 2) To determine which mechanism to use, I usually check mech.dat first to see what SPECIES are included; after that I will read the published paper on the particular mechanism to check what was the fuel in use. I hope it could help. |
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July 6, 2017, 11:33 |
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#9 |
New Member
Sanket
Join Date: Jul 2017
Posts: 20
Rep Power: 9 |
Thanks a lot.
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July 21, 2017, 15:46 |
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#10 |
New Member
Sanket
Join Date: Jul 2017
Posts: 20
Rep Power: 9 |
Hello,
I am working on simulation of RCCI engine. In which E85(Ethanol 85%and 15%Gasoline) as primery fuel(port injection) and diesel as secondary fuel.I have used reaction files from SI8_engine_premix_E85 example case of v2.4 . I have run the case but in output combustion is not taking place. Pressure rise is due to piston motion only.So where will be the problem? This Reaction files are valid for this case? Thank you |
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July 21, 2017, 16:38 |
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#11 |
New Member
Yijin Mao
Join Date: Jun 2017
Location: Convergent Science, Madison WI
Posts: 20
Rep Power: 9 |
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July 22, 2017, 04:40 |
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#12 | |
New Member
Sanket
Join Date: Jul 2017
Posts: 20
Rep Power: 9 |
Quote:
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July 24, 2017, 01:30 |
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#13 | |
New Member
Sanket
Join Date: Jul 2017
Posts: 20
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Quote:
Have you check that case setup? Is there any error? |
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July 24, 2017, 10:22 |
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#14 |
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liyong
Join Date: Feb 2017
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July 28, 2017, 05:13 |
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#15 | |
Senior Member
Tobias
Join Date: May 2016
Location: Germany
Posts: 295
Rep Power: 11 |
Quote:
here are some thoughs:
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