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New Member
ShrikantOak5421
Posts: 1
Registered: ‎07-26-2011

Cooling Analysis - negative values of coolant temperature rise

208 Views, 4 Replies
06-03-2013 10:21 AM

Hi

 

I am running cooling analysis - and seeing negative values of coolant temperature rise over circuit (in log file) for all the cooling channels. Have done all the checks - everything seems okay - anybody got ideas on why/how to fix it ?

 

Thanks

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New Member
kietzmc
Posts: 1
Registered: ‎06-05-2013

Re: Cooling Analysis - negative values of coolant temperature rise

06-05-2013 12:05 AM in reply to: ShrikantOak5421

If you have a negative temperature rise it means the coolant is actually heating up the mold, instead of cooling it down. You can also send you models to customer support and they can help you as well.

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Mentor
madhukeshwart
Posts: 241
Registered: ‎03-18-2009

Re: Cooling Analysis - negative values of coolant temperature rise

06-05-2013 12:00 PM in reply to: ShrikantOak5421
I too had similar opinian but...In such case it might give drop in temperature results.

negative results means heating up mold is for efficency results.

If I am wrong, any body correct my answer and correct it.
Madhukeshwar Talwar
FIAT-CHRYSLER ATC, Chennai
mail: madhukeshwart@gmail.com
09600060862
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Please use . Accept as Solution and Give Kudos as appropriate to further enhance these forums. Thank you! .....
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Valued Contributor
nishit78
Posts: 82
Registered: ‎08-05-2009

Re: Cooling Analysis - negative values of coolant temperature rise

06-19-2013 05:24 AM in reply to: ShrikantOak5421

Can you tell me what is your coolant temperature and what is the ambient temp setting in your analysis.

 

If i understand this correctly, I think this happens when the mold is running hot with a low ambient temperature setting.

 

For example if the ambient temp setting was 30 deg C and the coolant was running at 60 deg C. The mold temp at startup would be 30 deg C and the warmer coolant would lose heat to the cooler mold resulting in a drop in values.

 

This is my opinion.

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Active Member
furkan.salman
Posts: 6
Registered: ‎06-16-2011

Re: Cooling Analysis - negative values of coolant temperature rise

06-19-2013 07:38 AM in reply to: nishit78

1) the mold, may be insufficient to cool the cooling channel diameter, the diameter of the enlarged channel try.

 

2) Increase the number of loop refrigeration cycle cooling water, the number of input and output values yani.böylece sağutma improved cycle time will be shortened and you.

google translate sorry for bad english :smileyhappy:

PLAST MET KALIP San. Ve Tic. Ltd. Sti.
MOLDFLOW ANALIYST
mail:furkan_salman@hotmail.com
cell: +90 0544 892 07 32
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