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 m 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)
°C 200 20 0 -10 -20 -30 -40
kW 3.4 3.5 3.3 2.6 1.8 1 0.3
Heating capacity 12 kW
Pump pressure 0.5 bar
Duration 31 hr:min
Test volume 7.5 l
Setpoint 1 +20 °C
Setpoint 2 -20 °C
Reactor 10l Chemglas (glass)
Tubing length 2 m
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