Bibliographic Citation
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Title | Acoustically enhanced heat exchange and drying apparatus |
Creator/Author | Bramlette, T.T. ; Keller, J.O. |
Publication Date | 1987 Jul 10 |
OSTI Identifier | OSTI ID: 6742338 |
Report Number(s) | PATENTS-US-A6071953 |
DOE Contract Number | AC04-76DP00789 |
Resource Type | Patent |
Resource Relation | Portions of this document are illegible in microfiche products |
Research Org | Sandia National Labs., Albuquerque, NM (USA) |
Subject | 420400 -- Engineering-- Heat Transfer & Fluid Flow; DRYERS-- DESIGN;HEAT EXCHANGERS;HEAT TRANSFER-- ACOUSTICS; EXPERIMENTAL DATA;INVENTIONS;MOISTURE;PARTICULATES |
Related Subject | DATA;ENERGY TRANSFER;INFORMATION;NUMERICAL DATA;PARTICLES |
Description/Abstract | A heat transfer drying apparatus includes an acoustically augmented heat transfer chamber for receiving material to be dried.^The chamber includes a first heat transfer gas inlet, a second heat transfer gas inlet, a material inlet, and a gas outlet which also serves as a dried material and gas outlet.^A non-pulsing first heat transfer gas source provides a first drying gas to the acoustically augmented heat transfer chamber through the first heat transfer gas inlet.^A valveless, continuous second heat transfer gas source provides a second drying gas to the acoustically augmented heat transfer chamber through the second heat transfer gas inlet.^The second drying gas also generates acoustic waves which bring about acoustical coupling with the gases in the acoustically augmented heat transfer chamber.^The second drying gas itself oscillates at an acoustic frequency of approximately 180 Hz due to fluid mechanical motion in the gas.^The oscillations of the second heat transfer gas coupled to the first heat transfer gas in the acoustically augmented heat transfer chamber enhance heat and mass transfer by convection within the chamber.^3 figs. |
Country of Publication | United States |
Language | English |
Format | Pages: 34 |
Availability | NTIS, PC A03/MF A01; 1. |
System Entry Date | 2001 May 13 |
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