Pro/Forums - View Single Post

eX&TriC · 05-28-2002, 07:36 AM

"At 12v at 172w will give you around 43w of cooling..."

I'm confused ??

the 172W is the most efficient at 18V but at 12V i would only get
40W. I thought the COP went up

"Low power consumption - While this may seem oxymoronic for a thermoelectric (TE) system, my goal was to minimize power consumption. This was realized through the use of a high-wattage TE operated at (0.5)Vmax (12V, in this case; thermoelectrics have higher COP (coefficient of performance) at lower voltages, which equates to higher efficiency). In fact, the Melcor 'CP 1.4-127-045L' (Imax=8.5, Qmax=72, Vmax=15.4) operating at 12.0V, compared to the Drift-0.8 operating at the same voltage, will have inferior performance and at the same time consuming more power." from http://mozcom.com/~ronnieg/system/pelt.html

Please would anyone confirm 100% sure what happens
if you run a 172W @ 12V

....24V...172W....12A

A).12V...86W....12A
B).12V...86W....6A
C).12V...43W....6A

tnx

05-28-2002, 07:36 AM	#6
eX&TriC Cooling Neophyte Join Date: Oct 2001 Location: Belgium (center of the universe) Posts: 51	"At 12v at 172w will give you around 43w of cooling..." I'm confused ?? the 172W is the most efficient at 18V but at 12V i would only get 40W. I thought the COP went up "Low power consumption - While this may seem oxymoronic for a thermoelectric (TE) system, my goal was to minimize power consumption. This was realized through the use of a high-wattage TE operated at (0.5)Vmax (12V, in this case; thermoelectrics have higher COP (coefficient of performance) at lower voltages, which equates to higher efficiency). In fact, the Melcor 'CP 1.4-127-045L' (Imax=8.5, Qmax=72, Vmax=15.4) operating at 12.0V, compared to the Drift-0.8 operating at the same voltage, will have inferior performance and at the same time consuming more power." from http://mozcom.com/~ronnieg/system/pelt.html Please would anyone confirm 100% sure what happens if you run a 172W @ 12V ....24V...172W....12A A).12V...86W....12A B).12V...86W....6A C).12V...43W....6A tnx __________________ P4 1.8A @ 2.4 - 256MB PC1066 - GF4 355/780 Peltchilled- Last edited by eX&TriC; 05-28-2002 at 08:44 AM.