Against the advice of Jack Rickard and James Edmonson I have installed a BMS to monitor the battery pack voltage and charging among other capacities. I do not at this time plan on using the automatic balancing part, but will instead balance when needed. Those who recommend no BMS recommend manually balancing the individual batteries…
Testing a thermoelectric air conditioning system. Will try some things, see if it is practical enough to install in the EV Saturn. 12 Peltier Chips Arranged: Arranging the chips different ways to get 12 on the available heat sink surface.Fiberglass Frame: Fiberglass Frame that will hold the Thermoelectric Machine and bolt to the EV First…
Thermal Paste heatsink compound should be removed and new put on when working with the Peltier module. The stuff is sticky. You can use acetone, isopropyl alcohol (rubbing alcohol) or ethanol alcohol (get denatured cause if not denatured you might take a swig when you get frustrated). I used rubbing alcohol and coffee filters. Coffee…
I have begun gathering, assembling the parts needed to make the TEC. These include the Peltier Chips, heat sinks and fans. BTW, some other terms used for the same machine are….. Peltier module, , Peltier junction, thermoelectric device, thermoelectric module, TEC, TE module, TE cooler or ThermoElectric Air Conditioner Inventory of the parts to make…
The Thermo-Electric Peltier Effect air conditioning project has begun. I removed the Saturn dash. This is the third time and probably not the last. The first 2 dash removals were to install the [[http://saturn.lynnautorepair.com/node/189|hot water heat system in 2008]]. The second time was to [[http://saturn.lynnautorepair.com/EV%20Hot%20Liquid%20Heater%20to%20a%20Ceramic%20Heater|change the heater to a ceramic style in 2009]]. Now the…
Our plans were to race the Saturn back when it had the lead power pack a couple of years ago. I never got around to it. So this year with the Lithiums, I made time for it this July 3rd 2011. We chose Gleason, TN drag-strip because they run ‘street car’ bracket racing on Saturday…
I purchased 2 thermoelectric chips with hot and cold heat sinks. Testing them I found they pull 4 amps at 11.75 volts, so about 50 watts each. Junction Cold Side: Cold Side Thermoelectric Heater Cooler Peltier Junction LWKW-0318 With a air cooled heat exchanger working on the hot side removing the heat. The non-contact thermo-sensor…
Background: A Peltier effect, thermoelectric device creates a temperature difference when a voltage is applied to it. The device is also thermodynamically reversible. When the poles are reversed the hot side becomes the cold side and vice-versa. Also these semiconductor devices have the Seebeck effect. Seebeck is the conversion of temperature differences directly into electricity…
June 5, 2011 started driving the Saturn again with the LiFePO4 CALIBs. After 3 weeks I have recorded the results. Notice how the effeciency changes. One cause is the charger is not consistant. Sometimes not fully charging. So far I have not seen it overcharge. When recording the voltage I have not seen it go…
The results are in. After driving the Saturn a week it does seem like a new car. Quicker, no sulfur smell or acid, lighter, double the distance and easier to steer(front end lighter), from the first half mile drive to the one Saturday June 11 of 61 miles. The vehicle is much lighter. We removed…