While water strongly absorbs microwaves for an instantaneous temperature rise, the cost of microwave heaters is generally regarded as prohibitive. A new approach to microwave heat transfer may change that perception.
Based on a modular concept, the design centers on a simple element: a heat-resistant polysulfone injection-molded wave guide with inner pipe. The wave guide conducts microwave radiation emitted by the antenna of a magnetron. Only the water heats up, as the UDEL(reg) polysulfone (Amoco Chemical) offers low microwave absorption.
Test results show that 2 kW of power permits a 30C temperature increase for a water flow of 1 liter/min. Applications? Heating of ultra-pure water for semiconductor device manufacture; medical products; chemical processes. The technology is available for license.
At the Design News webinar on June 27, learn all about aluminum extrusion: designing the right shape so it costs the least, is simplest to manufacture, and best fits the application's structural requirements.
For industrial control applications, or even a simple assembly line, that machine can go almost 24/7 without a break. But what happens when the task is a little more complex? That’s where the “smart” machine would come in. The smart machine is one that has some simple (or complex in some cases) processing capability to be able to adapt to changing conditions. Such machines are suited for a host of applications, including automotive, aerospace, defense, medical, computers and electronics, telecommunications, consumer goods, and so on. This radio show will show what’s possible with smart machines, and what tradeoffs need to be made to implement such a solution.