We still use them because of the convenience. I agree with you George, because the anode current densities suggested in the literature are not based on an actual study of the diffusion dynamics anyway, they're just empirical. And I think they just used the envelope dimensions of the baskets to describe y because I've never read differently. If you are looking to keep a smaller anode mass in the tank with the same available surface area, try using round anode baskets. The net anode consumption is the same but it is less expensive to get started when considering the cost of the anodes.
Round baskets are also sturdier than rectangular baskets made of the same material.
The disadvantage is that you need to buy more baskets. And it takes fewer chunks to fill in that same inch than if you have rectangular baskets. The round baskets are also easier to move around if you want to rearrange the electrical field and improve distribution. All information presented here is solely for general reference and does not represent a professional opinion nor the policy of an author's employer. If you have a question of your own, please post it on our 'new letter' form .