Hi Rive,
Thank you for the link, I realized that I made an error on my math as I used (T_sink - T_ambient)/Pd_max instead of (T_jc - T_ambient)/Pd_max to get the thermal resistance of the heat sink needed. Most of my thermal resistances are positive now but there are a few that are a bit...
Hi Windadct,
Thank you for your insight, the chip is actually soldered to a small copper moly copper plate. I was having a hard time trying to distinguish if the stated thermal resistance (θjc) of the chip from the data sheet actually meant the thermal resistance from the top of the chip to the...
I'm currently developing a heat sink for a product that produces up to 150 W max power dissipation. I'm currently getting a negative thermal resistance for the heat sink. I don't think that is possible..
I'm not sure how to move on at this point to properly design a heat sink to meet the heat...
I see..My application is just a simple design of a heat sink to keep the chip in recommended operating temperatures. Doesn't have to go into anything advance.
I'm currently doing a heat sink calculation design and having a little confused moment with the area of the chip with a AuSn (Gold Tin Solder) pre-cut that's attached to the bottom of the chip.
I've tried looking around online for AuSn's thermal resistance value, but there is none besides a...
Homework Statement
Please see attached file for problem statement
Homework Equations
ΣM = Min - Mout = 0
The Attempt at a Solution
I have tried using the equation of conservation of momentum on this problem but I'm getting stuck at how the viscous force of the liquid is playing a role in this...
@siddharth23
Thank you for your reply! I found out that rude man's suggestion below helped with finding the answer to my question.
@rude man
Thank you also for your reply. To answer your question, I used the entropy balance equation to comes to that conclusion. There was no W stated so I...
I'm having a hard time setting up an equation for a heat engine problem with one heat source and two heat sinks given only the temperature of the heat source and temperature of the two heat sinks as:
TH = 1000 K
TC1 = 200 K
TC2 = 300 K
It is given that the two heat rejected are of equal value...