Case Study: PRESTO A45t Process system

Cooling a Asahi 20 l reactor from +20 °C to lowest possible temperature with a PRESTO A45t Process system

Objective

This case study tests the lowest temperature of the JULABO PRESTO A45t Process system with a 20 l glass reactor. The PRESTO A45t is connected to the reactor via two 2 m metal hoses. The PRESTO A45t Process system cools from +20 °C to -41.10 °C maximum low temperature.

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 4:15 hr:min
Test volume 15 l
Setpoint 1 +20 °C
Setpoint 2 -50 °C
Reactor 20l Asahi (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 600 s
TV 80 s
XPU 15 K

Test Results

The PRESTO A45t Process system cools the reactor from +20 °C to the lowest temperature of -41.10 °C in 4:15 h.

Set point
Temperature in the application
Temperature in temperature control unit