Abstract
Vacuum Pressure Impregnation (VPI) is a process that enhances physical properties by coating some types of epoxy resins on windings of stator used in large rotators such as generators and motors. During vacuum and pressurization of the VPI process, resin gas is generated by vaporization of epoxy resin. When the tank is opened for curing after finishing impregnation, resin gas is leaked out of the tank. If the leaked resin gas spreads throughout the workplace, there are safety and environmental problems such as fire, explosion and respiratory problems. So, exhaust system for resin gas is required during the process. In this study, a case study of exhaust efficiency by location of vent was conducted using Computational Fluid Dynamics (CFD) in order to design a system for exhausting resin gas generated by the VPI process. The optimal exhaust system of this study allowed more than 90% of resin gas to be exhausted within 1,800 seconds and reduced the fraction of resin gas below the Low Explosive Limit (LEL).
| Translated title of the contribution | Design of Hazardous Fume Exhaust System in Vacuum Pressure Impregnation Process Using CFD |
|---|---|
| Original language | Korean |
| Pages (from-to) | 521-531 |
| Number of pages | 11 |
| Journal | Korean Chemical Engineering Research |
| Volume | 59 |
| Issue number | 4 |
| DOIs | |
| Publication status | Published - 2021 Nov |
Bibliographical note
Publisher Copyright:© 2021 Korean Institute of Chemical Engineers. All rights reserved.
All Science Journal Classification (ASJC) codes
- Chemical Engineering(all)