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Electronic Cooling
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Dr. Savak
Feb 23, 2001, 1:10:44 PM2/23/01
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Hi
I was wondering if there is software with free demo that can do simple
electronic cooling simulation (CFD)?
I was wondering if there is software with free demo that can do simple
electronic cooling simulation (CFD)?
Ive found some general ones and they work fine, but i also have seen some
very specialized software just for electronic cooling (unfortunatly they
cost over 30G)
Chris
Feb 28, 2001, 9:26:04 PM2/28/01
to
I believe you are talking about using heat sinks/fans/etc to cool
electronics such as CPU's, high speed chips, hi-power transistors, etc???
You're probably out of luck.
I'm not an engineer, but I know a little on this subject. The variables
involved are:
the vector power consumption of the device
the efficiency of the device (possibly also a vector if it changes
non-linearly with power changes)
the heat transfer coefficient of the device
the heat transfer coefficient of the device-to-heat-sink junction (this
includes variables involving the materials of the case/heatsink, the type
and thickness of the layer of heat sink compound, and surface area/flatness
of the case/heatsink)
the heat transfer coefficient of the heatsink (includes surface area,
material, flatness, airflow characteristics, et al, but is usually given by
the heatsink manufacturer IF you stick to their pre-ordained conditions of
ambient temp, airflow, etc...)
the ambient temperature and humidity.
the amount of air flowing over the heatsink.
electronics such as CPU's, high speed chips, hi-power transistors, etc???
You're probably out of luck.
I'm not an engineer, but I know a little on this subject. The variables
involved are:
the vector power consumption of the device
the efficiency of the device (possibly also a vector if it changes
non-linearly with power changes)
the heat transfer coefficient of the device
the heat transfer coefficient of the device-to-heat-sink junction (this
includes variables involving the materials of the case/heatsink, the type
and thickness of the layer of heat sink compound, and surface area/flatness
of the case/heatsink)
the heat transfer coefficient of the heatsink (includes surface area,
material, flatness, airflow characteristics, et al, but is usually given by
the heatsink manufacturer IF you stick to their pre-ordained conditions of
ambient temp, airflow, etc...)
the ambient temperature and humidity.
the amount of air flowing over the heatsink.
If you enclose this all in a case, then you have to figure another set of
heat transfer calculations involving heat in/out of the case. As you can
see, this is quite a complicated beastie, and as such is only taken on by
deep-pocket corporations or college physics classes. When you factor in the
very low demand, an economic equation will tell you the cost is going to be
astronomical (Hmm.. physics, economics and astronomy in one lesson! :-)
Best of luck!
"Dr. Savak" <drs...@home.com> wrote in message
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Dr. Savak
Mar 3, 2001, 1:11:22 AM3/3/01
to
yes i know. Im an engineering student graduating this year. This is my heat
and mass transfer course project. what I was wondering was if there is a
program like Flowtherm that has a 30 day trial or something.
We have FEA programs in school but to model a complicated this would take
some time so i was looking for a specialized software (Icepak) that can do
this.
thanks for your reply
and mass transfer course project. what I was wondering was if there is a
program like Flowtherm that has a 30 day trial or something.
We have FEA programs in school but to model a complicated this would take
some time so i was looking for a specialized software (Icepak) that can do
this.
thanks for your reply
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