Does anybody know about using the same Peltier junction for both heating and cooling? I'm concerned about thermal/mechanical shock when changing the polarity back-n-forth between hot and cold. Maybe there needs to be a controlled ramp, if so then how do I figure out the rate?
Why: I'm in the process of building a small environmental chamber for my home lab. The volume is ~30 liter, target temp range of 0C to 60C. For the cooling side I am using water circulation (radiator, pump, reservoir & water block) and Peltier junctions. At first I was planning to have two separate systems, one for heating and one for cooling, but then I got to thinking that using just the water and Peltier could be used for both. I will be using a PID for temp control, and two TEC1-12726 Peltier Qcmax(w)= ~240 △T =0j Regards, Jerome ----------------------------------------------------------------------------------- This email message is for the sole use of the intended recipient(s) and may contain confidential information. Any unauthorized review, use, disclosure or distribution is prohibited. If you are not the intended recipient, please contact the sender by reply email and destroy all copies of the original message. ----------------------------------------------------------------------------------- _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
