What Type of Lattice Should I Use?

Down selecting the appropriate lattice types to test in any heat exchanger configuration is an important consideration. The “right” lattice depends on the application. Ideally, we want to only select self-supporting lattices for any applications where the lattice volume will be entrapped / unreachable inside of a part, like heat exchangers. 

More importantly, removing internal support structures can often be difficult and costly. Generally speaking, we only want lattices that have a high surface area to volume ratio. TPMS lattice structures typically meet these requirements.

We have found that the Gyroid and Diamond lattice types have risen to the top on most occasions. For example, if you’re designing a liquid-to-liquid heat exchanger, the TPMS lattice naturally separates two regions in space (i.e., your hot and cold fluid domains) on each side of the lattice wall.