| AVS 65th International Symposium & Exhibition | |
| Vacuum Technology Division | Wednesday Sessions |
| Session VT-WeM |
| Session: | Vacuum Technology Developments |
| Presenter: | Tony Guo, New Jersey Institute of Technology |
| Correspondent: | Click to Email |
Vacuum processing technologies are widely used in general industrial applications. Most of the current vacuum technologies such as positive displacement pumps, momentum transfer pumps, entrapment pumps and ejectors have to rely on electricity and /or compressor as the prime power source to generate the vacuum. Our technology provides an economic method to generate the vacuum by only using low-grade energy like waste heat, realized by steam condensation mechanism and dual-action piston-cylinder design. Our vacuum system is composed of 4 parts: one actuator-vacuum generation pump, where steam will be filled into and condensed to generate the vacuum environment; one extracting pump, deliver the vacuuming process, driven by the actuator through a linear connected piston; one boiler, to supply the steam to actuator as the prime energy source; an application chamber, connected with the extracting pump, to evaluate the vacuuming performance.
A system design of our technology will be presented and the vacuuming process will be demonstrated by 3D animation. A lab-scale prototype will be demoed via photos and video. The dynamic process of vacuuming for both actuator and driven pump has been mathematic modeled via MATLAB. For model correction, the tricky problems in the process, such as gas leakage and discharge, have been studied via CFD.
Key words: vacuum generation, low grade heat utilize, dynamic process model, CFD