English
Views: 5 Author: Site Editor Publish Time: 2023-12-19 Origin: Site
28thNov 2023
Design informaton
1. Operation Ambient:21-24℃
2. Operation Voltage:120V
3. Thickness of Insulator foam: 15-20mm
4. Insulator material:polyurethane or polystyrene foam material
5. Tray size: 1350x450x100mm
6. Material of Tray:tainless steel
7. Water volume:11-13 gallons (41-49Litres)
8. Requires cool down time:2-3hours
9. The cold plate system
Cool down 49L water from 25℃ to 0℃ and freezon in 2hours or 3 hours
Object | Transient load Qc (w) | |
2hours | 3hours | |
49L water | 686 | 457 |
Tray(stainsteel) | 142 | 95 |
Water to ice | 2280 | 1520 |
leakage | 45 | 45 |
Total Requires Qc | 3153 | 2117 |
- Mechanical design of thermelectric assembly unit
(over size: L*W*H=450*80*40mm)
- Component details of each Thermoelectric assembly unit
Component | Material | Estimation Size(mm) | Quantity/LA |
Liquid plate | Al 6063 | 450x80x20 | 1 |
TEM | TEC,127 | 55*55*4 or 62x62x4.5 | 4 |
D-plate | Al 6063 | 430x80x15 | 1 |
Simulated & Calculation (performance)
Temperature difference | Operation Voltage (VDC) | Operation current (A) | Qc (w) | Qh (w) |
ΔT=25℃ | 48 | 10.9 | 180 | 703 |
ΔT=0℃ | 11.2 | 322 | 861 |
Based on the simulation & Calculation, it will be called DL,322,48
Assembly to Tray
DL,322,48 will be attached on the bottom of tracy, isolated tray and cold side
DL unit
Gravity
Conclusion
- Per design output, 12pcs DL,322,48 will possible to cool down the water from 25 to 0 and freezon in 3 hours.
Heat dissipated | Part name | Qc (w) | Design target | Cooling unit application | ||
Quantity | Result | |||||
Thermoelectric Assembly | DL,322,48 | 322 | 2H | 3153w | NA | Not application |
180 | 3H | 2117w | 12units | Yes | ||
- Addition equipment to the thermoelectric Assembly unit
1. Power supply (direct current, 48VDC output), because of thermoelectric module works in direct voltage.
2. Total 10332w heat need to dissipate from the hot side liquid plate.
- Addition proposal to the application
1. To reduce the thickness of tray (if possible, 3-5mm)
2. Incress the thickness of insulator foam, the min 25 or 30mm.
3. It cost more if used Thermoelectric assembly module, or the compressor solution is option.
