MEMS Energy Harvester for Reusing Waste Heat

During our recent webinar with COMSOL on thermal-structure interaction modeling, we at AltaSim Technologies demonstrated modeling of a MEMS energy harvester that scavenges waste heat. Examples of sources for waste heat range from microprocessor chips, to internal combustion engines, to chemical processing plants. If the waste heat generated from these cases could be used to generate additional energy, then overall energy consumption could be reduced. Estimates from CANMET Energy Technology Centre indicate that worldwide, waste heat exceeds 1 TJ annually.

Mesh Refinement for Wave Problems

Wave propagation problems require sufficient mesh refinement to ensure twelve degrees of freedom per wavelength. This requirement develops from the error associated with approximating a sine wave with a polynomial. AltaSim Technologies shares this type of information regularly with users of the COMSOL Multiphysics software through our Tips and Tricks.  If you are interested in receiving these tips delivered to your email inbox, then please register for our Tips and Tricks.

Fatigue – When Cyclic Stress Produces Fractures

Many of the products that engineers design experience cyclic stresses during use that are below the material’s yield stress; unfortunately…