KR> RE: CorvAircraft> cylinder head temps

2012-08-29 Thread Matt Elder
On 8/29/2012 3:29 PM, jon kimmel wrote: > Look at wikipedia under thermoelectric cooling...I think we're both right. > On Aug 29, 2012 12:57 PM, "Nerobro" wrote: Anywho The point is that thermocouples have a hot junction and a cold junction. The hot junction is where the temp is probed (th

KR> RE: CorvAircraft> cylinder head temps

2012-08-29 Thread jon kimmel
Look at wikipedia under thermoelectric cooling...I think we're both right. On Aug 29, 2012 12:57 PM, "Nerobro" wrote: > You were close, but lost the plot when you started saying it was like > a car fridge. > > Thermocouples detect temperature due to the voltage generated between > dissimilar meta

KR> RE: CorvAircraft> cylinder head temps

2012-08-29 Thread Nerobro
You were close, but lost the plot when you started saying it was like a car fridge. Thermocouples detect temperature due to the voltage generated between dissimilar metals. You were right on that point. Thermocouples are hilariously bad power sources, and can not be driven to generate cold. If

KR> RE: CorvAircraft> cylinder head temps

2012-08-29 Thread jon kimmel
I'm just an aerospace engineer, but the way I understand thermocouples is that they are two different metals that are welded together...they produce different voltages with different heat. Reverse that by applying voltage to the leads and you have a hot side and a cold sidethat's how car refri

KR> RE: CorvAircraft> cylinder head temps

2012-08-28 Thread Dan Heath
I am certainly no expert on things electrical, but I have some understanding of how it works. The lead coming off the thermocouple is "thermocouple" wire. You see how much I don't know. Well, I also did not know that you could run regular wire from it until I ordered a switch from Westach that i