ModIceCrys: “CFD Numerical modelling and experimental analysis of ice crystallizers for supercooling flows”

General Role: Project advisor.

Specific technologies in charge of: Expertise on supercooling ice slurry method and Computational Fluid Dynamics (CFD).

Main goal of the project: ModIceCrys aims to understand the fundamentals of ice growth and its interactions with fluid flows. This know-how will be ultimately used to develop a flow-based ice crystallizer design tool with the aims of computational fluid dynamics (CFD).  Thus, a key aspect of the ModIceCrys project will be to numerically investigate ice crystallization processes in supercooling water flows. To validate the numerical model and assess the crystallizers experiments will be conducted

Extended Summary: To complete the deployment of the ice slurry technology using the supercooling water, modelling and design tools for the scalability of crystallizers are required. These tools may ensure a controlled and reliable operation of crystallizers, avoiding upstream ice propagation and exergetic losses, and high-efficiency supercooling release. To achieve this, ModIceCrys aims to develop a CFD-crystallization tool for modelling the ice crystallization process coupled with supercooled water flows.  As a first step, the ice crystallization processes in supercooling water will be numerically investigated using the population balance model to obtain a stand-alone crystal growth model in non-flow conditions. Thereafter, a coupled fluid flow and the above-mentioned crystal growth model will be coupled by means of CFD in order to understand the fundamentals of ice growth and its interaction within supercooling water flows. To conclude, the validation of the previous CFD-crystallization model via diverse non-intrusive quantitative flow visualization techniques, such as Particle Image Velocimetry (PIV) and Backlight Shadow Imaging (BIS), is foreseen

CFD simulations results of an ice crystallizer.

Duration: 2022-2026

Web: https://www.aramis.admin.ch/Grunddaten/?ProjectID=51652

Project Partners:

Funding Agency: Swiss Federal Office Of Energy (SFOE)