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- TIM: Panasonic EYG-S0909ZLX2 thermal resistance: 12.5 mK/W
- peltier:
- TEC 1 : Laird 108161050003 TEC 2 : Laird 387004685
- parallel connecting
PSU current / voltage requirement : 11 A / 8 V
- Coolant : 70% water, 30% ethylene glycol
- Coolant Temperature : -10C
- Dry air : 1.5L/min
chiller requirements: capacity > 385 W
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To avoid condensation on the peltier devices, you must maintain a dry atmosphere in the cooling unit whenever there is coolant flowing through the coldplate. If condensation forms on the peltier devices, it will degrade the performance of the cooling unit because ice and water is an excellent conductor of heat. Getting rid of this condensation requires a long term “bakeout” of the coldstack and is best avoided.
Setup for preliminary cooling test
- cooling unit: from Marco
- 2 moisture sensor (SHT85 and the DHT22) [sensor interface using I2C]
- 4 RTD
- Interlock
- Overheating = the chiller fails and the PS keep running,
- Condensation = Dry air fails, moisture condense and destroys the device
- module temperature drop <-55C