Heat Rejection Rate(negative&positive)

oozcan · September 7, 2018, 02:02

Hello guys,

I have modelled porous core of intercooler and radiator for a vehicle. Also, heat exchanger module was activated and give there heat rejection rates with together primary and auxiliary fluid mass flow rate.

Those cores releases heat and what should I give their value? positive or negative.

In a similar way, there is also a core which has w/m3 and it release heat,too and its value in energy source term should be negative or positive??

Regards,

Really appreciated!!!

LuckyTran · September 9, 2018, 11:56

It's a source term. Positive means heat is generated (a source), negative means heat is taken away (a sink).

September 7, 2018, 02:02	Heat Rejection Rate(negative&positive)	#1
oozcan Senior Member Onur Özcan Join Date: Feb 2016 Location: Istanbul/Turkey Posts: 461 Rep Power: 12	Hello guys, I have modelled porous core of intercooler and radiator for a vehicle. Also, heat exchanger module was activated and give there heat rejection rates with together primary and auxiliary fluid mass flow rate. Those cores releases heat and what should I give their value? positive or negative. In a similar way, there is also a core which has w/m3 and it release heat,too and its value in energy source term should be negative or positive?? Regards, Really appreciated!!!

September 9, 2018, 11:56		#2
LuckyTran Senior Member Lucky Join Date: Apr 2011 Location: Orlando, FL USA Posts: 5,675 Rep Power: 66	It's a source term. Positive means heat is generated (a source), negative means heat is taken away (a sink). oozcan likes this.

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