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Heat Transfer Dynamic Model | |||
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Posted by: applegat ® 02/25/2007, 22:50:37 Author Profile eMail author Edit |
I am working on a project dealing with the dynamic effects of heating and cooling (of the coolant) in an automotive type cooling sytem. I want to start out with a very simple and general model, then improve the equation(s) to include more parameters. For my simple model, I want to include a variable heat source, then be able to calculate coolant temp over time. Assuming 100% heat transfer from the heat source to the coolant and assuming no external cooling of the coolant. The coefficient of heat transfer can be a generic number. I plan to adjust this in future models. Can anyone provide suggestions on how to setup this model? Thanks. |
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Re: Heat Transfer Dynamic Model | |||
Re: Heat Transfer Dynamic Model -- applegat | Post Reply | Top of thread | Forum |
Posted by: zekeman ® 02/27/2007, 15:26:18 Author Profile eMail author Edit |
Without dissipating the heat you have no model. You must be able to cool down the coolant at a minimum. |
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Re: Re: Heat Transfer Dynamic Model | |||
Re: Re: Heat Transfer Dynamic Model -- zekeman | Post Reply | Top of thread | Forum |
Posted by: Bruiser ® 02/28/2007, 09:57:54 Author Profile eMail author Edit |
Zoom in!! Cooling the coolant is the reverse of cooling whatever the coolant is cooling. I mentioned this in terms of a radiator, device used to transfer heat from hot liquid to surrounding air (or other liquid). You can dissipate heat by raising the temperature of a coolant. |
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Re: Heat Transfer Dynamic Model | |||
Re: Heat Transfer Dynamic Model -- applegat | Post Reply | Top of thread | Forum |
Posted by: Bruiser ® 02/27/2007, 10:38:49 Author Profile eMail author Edit |
Keep it simple. Q = mcT, where:
Q = input heat (Joules) m = mass of coolant T = change in temperature c = specific heat (I think water is 1, google it) Whatever dynamic principles you expand on will incorporate this basis. The same goes for a radiator for example, but the Q acts on the mass of air around it, raising its temperature. |
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