PET Dryer Is Said to Cut Energy Use by 67%

摘要

A new method of recycling hot exhaust air back into the drying hopper of a wheel-type desiccant-rotor dryer is said to reduce energy consumption in high-volume PET processing by up to 67% relative to other desiccant dryers.Substantial energy savings reportedly were verified in beta testing by a large PET bottle maker of the new Ener-gySmart system from Conair,Pittsburgh.This system is an add-on option to the Carousel Plus desiccant-rotor dryer.Because it adds some complexity and expense,the EnergySmart option is recommended mainly for processors running large volumes(800 lb/hr or more)of hygroscopic materials that require drying at temperatures above 250 F.Besides PET,suitable applications could include polycarbonate sheet