A solution for fuel cell scaling-up and a connection can be built among the components, cells, stack, process and system control through the operating windows and flow fields.
One outcome of that study was the possibility of using such models to aid cell scale-up and scale-down.
Future work will include cell scale-up and increasing cell Faradaic performance using selected electrocatalysts and membranes.
The results achieved are encouraging and indicate the potential of using a CVA state space representations as an aid to cell scale-up and scale-down.
This complementary review considers the characteristics of the FM01-LC electrolyser as an example of a well-engineered flow cell facilitating cell scale-up and provides a rigorous analysis of its reaction environment.
Individual cells can then be identified under the microscope using antibody-staining, and their total numbers estimated by counting the number of visible cells and then scaling up the figures according to how much of each suspension was placed into the chamber.
But the scaled up bacterium would now face an even more serious problem: rates of transcription and translation could not be scaled-up 15,000-fold to service the increased cell volume, except by scaling up genome number, as before.
Then, using semi-empirical engineering scaling criteria (constant solvent lineal velocity or constant solvent residence time) and the Broken and Intact Cell (BIC) model, the scaling up to larger extraction vessels (1.35 × 10−3 m3 and 5.16 × 10−3 m3) was theoretically investigated.
After scaling up, cells were transferred into a production flask in high density and then kept in static culture for a given period.
Scaling up cell-free batch-based reaction systems might be limited in certain cases: decreasing protein yield with increasing reaction volumes caused by an altered surface-to-volume ratio, thus resulting in a reduction in hydrophobic surface area.
One of the main challenges for scaling up microbial fuel cell (MFC) technologies is developing low-cost cathode architectures that can generate high power output.
