Case Study: PRESTO A45t Process system
Cooling a Chemglas 10 l reactor from +20 °C to -20 °C with a PRESTO A45t Process system
Objective
This case study tests the cooling capacity of the JULABO PRESTO A45t Process system with a 10 l glass reactor. The PRESTO A45t is connected to the reactor via two 2 in. long metal hoses. The PRESTO A45t Process system has been programmed to cool down from +20 °C to -20 °C.
Test Conditions
| Product | PRESTO A45t Process system | ||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Cooling capacity (Ethanol)
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| Heating capacity | 12 kW | ||||||||||||||||||
| Pump pressure | 7.3 psi | Band limit | °k | ||||||||||||||||
| Duration | 31 hr:min | Test volume | 7.5 l | ||||||||||||||||
| Setpoint 1 | +20 °C | Setpoint 2 | -20 °C | ||||||||||||||||
| Reactor | 10l Chemglas (glass) | Tubing length | 2 in. | ||||||||||||||||
| Fluid in unit | Thermal HL60 | Fluid in reactor | Thermal HL60 | ||||||||||||||||
Environment
| Room temperature | 20 °C |
|---|---|
| Humidity | 45 % |
| Voltage version | 400V/3PNPE/50Hz |
Control Parameters
| XP | 0.19 K |
| TN | 300 s |
| TV | 40 s |
| XPU | 8 K |
Test Results
The PRESTO A45t Process system cools the reactor from +20 °C to -20 °C in 31 min.
- Set point
- Temperature in the application
- Temperature in temperature control unit