An international research group has proposed a low-cost testing methodology for solar water pumping systems that can reportedly improve water access in developing countries. The novel approach enables ...

Variable frequency drives (VFDs), also known as variable speed drives (VSDs), are used to modulate the speed of motors in various applications, from hydronic water pumping to VAV fan units to vacuum ...

Your new apparatus committee has spent a lot of time sorting through details to come up with a good specification for a proposed new engine. This includes a requirement for a midship-mounted fire pump ...