STAR-CCM+ CO2 Absorber Simulations Ended

We require CFD simulations to analyse the performance of a soda lime CO2 absorber, which is used to scrub CO2 from exhaled breath in a closed breathing loop. This one-time project aims to improve our understanding of the absorber's performance and lifespan by addressing airflow dynamics, pressure loss, and chemical reactivity. CAD geometry will be provided.

Scope of Work:
The successful candidate will use STAR-CCM+ to perform the following tasks:

1. Assessing Flow Characteristics and Identifying Dead Spots:
Simulate airflow distribution within the stock absorber design, ensuring the interaction with the packed bed reactor is accurately visualised.
Identify "dead spots" where soda lime granules may be underutilised.
Analyse inefficiencies contributing to uneven degradation of the soda lime bed.

2. Calculating Pressure Loss and Determining Porosity:
Simulate pressure loss across the absorber bed.
Compare simulation results with experimental measurements to validate the model.
Derive bed porosity and permeability parameters.

3. Calculating Reactivity and Lifespan of the Porous Medium:
Model the chemical reactions within the soda lime granule bed, if possible we’d like to see how much CO2 is removed during the simulation.
Estimate the absorber's operational lifespan under typical usage conditions.

Requirements:
Proven experience with STAR-CCM+, particularly in modelling porous regions and packed bed reactors.
Familiarity with the necessary physics models and other methods relevant to porous media simulations.
Ability to compare simulated results with experimental data to ensure model validity.

Deliverables:
Detailed simulation results and files for each task.
Guidance on how the simulations were set up and prepared. read less