After the installation of additional measurement devices

We are pleased to announce that the freeze dryer has been successfully equipped with high-class Endress + Hauser sensors. Additional equipment allows for accurate measurement of pressure and flow of the working fluid in the cooling system. Due to the dimensions of the sensors, the SUT team prepared a special table on which they were placed. In addition, the data acquisition system has been expanded with additional modules that support the devices described above.

Before the installation of additional measurement devices

After a series of successful experiments conducted in SUT laboratory, in the next step, the lyophilisator will be equipped with high-quality pressure and flow sensors for comprehensive monitoring of the refrigeration cycle. For that reason, the device left SUT laboratory and will be modified at FrostX workshop, where high-class Endress+Hauser sensors will be installed in the refrigeration cycle.

Simulation of the lyophilisation process

Based on the geometric model of the computational domain shown in the figure below

a simulation model of the lyophilisation  process is currently being developed. The computer code generated in the Matlab package is then coupled (at each time step) with the code generated in the Ansys / Fluent package. The obtained numerical results are also compared with the results of thermal measurements.

The Project Kick-off Conference

The Project Kick-off Conference of the POLNOR 2019 and POLNOR CCS programs took place on June 14 - 15, 2021. Our project was represented by: prof. Jacek Smołka and Edyta Piechnik, MA.

Lyophilisator already in the lab

Experimental tests with the referenced and modified lyophilisator will be carried out in the SUT laboratory where the test rigs of the hydro-fluidisation freezing method and the natural R744 ejector-based refrigeration units are located. The FrostX lyophilisator was already delivered in the lab. The collected experimental data will be used to evaluate the performance of the reference unit and also to validate the CFD model of the standard solution.