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Efficiency of SiGe TE

Submitted by QianB on Mon, 2010-06-21 10:18
in

Hi~

Recently, I am interested in the TE in the space applications. I know the SiGe material is most commonly used in high temperature situations. I want to know how could I calculate the efficiency of certain TE in certain temperature difference, such as 1300K and 750K? And between these temperatures, which TE has the highest efficiency?

Thanks!

 

QianB

Peltier by Thomson

Submitted by Twini on Mon, 2010-05-31 15:30
in

Hi
What I understand is, Seebeck effect is just the first Thomson effect (Thermal gradient on single conductor creating an electromotive force) for the both conductors in thermocouple.

But how is Peltier effect explained with Thomson effect?

Second Thomson effect states that current on a conductor with thermal gradient makes one part of the conductor heat up and another part cool down due to the current being resisted or accelerated by the electromotive force created by the thermal gradient.

Less than one week, ICT2010 deadline for early registration and reservation of hotel

Submitted by xyhuang on Sun, 2010-04-25 08:36
in

ICT2010 organizing committee wants to remind you that the deadline for early registration and reservation of hotel is the 30th of April, the deadline for submission of manuscript to be selected as the best paper is the 1st of May.

New Patent

Submitted by JJReidy on Tue, 2010-04-13 18:07
in

My TEC device extracts water from the air and treats it to EPA standards or better. Please contact me for a .pdf copy of my patent which has issued in 7 countries and pending in 6 more.

Looking for high perfomance thermoelctric material

Submitted by dadob on Thu, 2010-01-21 07:42
in

Hello everybody,


Im looking for a high performance thermoelectric material in the temperature range of 100-150C.


Does anyone know such material?


Thanks,


Boaz


 

Wellen Technology Co.,Ltd.- manufacturer of thermoelectric assembly

Submitted by Wellentech on Mon, 2010-01-18 22:20
in

Wellen Technology Co.,Ltd.- The manufacturer of thermoelectric cooling modules , thermoelectric power generation modules,thermoelectric cooling assembly,heatsink,heatpipe,fans,water plates,high purity of thermoelectric materials Te, Bi, Se, Sb.

Sign of material's thermopower

Submitted by epjx on Thu, 2009-11-26 11:06
in

Hi,

 

I am abit confused regarding how to determine the sign of the seebeck coefficient.

S= [delta V]/ [delta T]

where both values are Hot - Cold

Is this the right defination?, there are also claims that there should be a negative sign in front of it which is kind of confusing.

And normally when you measure the thermopower of a material with respect to a material let say its copper, do you minus or plus to get the absolute thermoelectric power? I've read various journal which minus and plus.

 

regards,

Edwin

High ZT in nanostructured materials

Submitted by avtotav on Thu, 2009-10-29 05:10
in

Recently, IOP nanotechweb published short highlight article on enhanced ZT in nanostructured semiconductor layers http://nanotechweb.org/cws/article/lab/40618 .

The Case for Thermoelectrics in the Data Center

Submitted by jsicuran on Wed, 2009-10-28 16:21
in

The Case for Thermoelectrics in the Data Center. How integrating Thermoelectrics into IT systems assists in reducing data center energy consumption.

 

http://amilabs.com/tgs/The%20Case%20for%20Thermoelectrics%20in%20the%20DC.pdf

Using Ansys 12 for thermal-electric applications

Submitted by epjx on Sun, 2009-10-04 21:27
in

hey guys,

I am having abit of trouble using ansys 12 doing just a simple thermal-electric(peltier effec) simulation. Since there was no tutorial available, do anyone of you all know what's the boundary condition needed to be set before running the simulation? I have set the voltage and the initial hot end temperature.

 

regards,

Edwin

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