Apparatus and method for determining solids circulation rate
Abstract
The invention relates to a method of determining bed velocity and solids circulation rate in a standpipe experiencing a moving packed bed flow, such as the in the standpipe section of a circulating bed fluidized reactor The method utilizes in-situ measurement of differential pressure over known axial lengths of the standpipe in conjunction with in-situ gas velocity measurement for a novel application of Ergun equations allowing determination of standpipe void fraction and moving packed bed velocity. The method takes advantage of the moving packed bed property of constant void fraction in order to integrate measured parameters into simultaneous solution of Ergun-based equations and conservation of mass equations across multiple sections of the standpipe.
- Inventors:
-
- Morgantown, WV
- Issue Date:
- Research Org.:
- National Energy Technology Laboratory (NETL), Pittsburgh, PA, Morgantown, WV (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 1036529
- Patent Number(s):
- 8116992
- Application Number:
- 12/430,192
- Assignee:
- The United States of America as represented by the United States Department of Energy (Washington, DC)
- Patent Classifications (CPCs):
-
F - MECHANICAL ENGINEERING F27 - FURNACES F27B - FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL
G - PHYSICS G01 - MEASURING G01F - MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 47 OTHER INSTRUMENTATION
Citation Formats
Ludlow, J Christopher, and Spenik, James L. Apparatus and method for determining solids circulation rate. United States: N. p., 2012.
Web.
Ludlow, J Christopher, & Spenik, James L. Apparatus and method for determining solids circulation rate. United States.
Ludlow, J Christopher, and Spenik, James L. Tue .
"Apparatus and method for determining solids circulation rate". United States. https://www.osti.gov/servlets/purl/1036529.
@article{osti_1036529,
title = {Apparatus and method for determining solids circulation rate},
author = {Ludlow, J Christopher and Spenik, James L},
abstractNote = {The invention relates to a method of determining bed velocity and solids circulation rate in a standpipe experiencing a moving packed bed flow, such as the in the standpipe section of a circulating bed fluidized reactor The method utilizes in-situ measurement of differential pressure over known axial lengths of the standpipe in conjunction with in-situ gas velocity measurement for a novel application of Ergun equations allowing determination of standpipe void fraction and moving packed bed velocity. The method takes advantage of the moving packed bed property of constant void fraction in order to integrate measured parameters into simultaneous solution of Ergun-based equations and conservation of mass equations across multiple sections of the standpipe.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2012},
month = {2}
}
Works referenced in this record:
An Analysis of Loop Seal Operations in a Circulating Fluidized Bed
journal, October 2000
- Basu, P.; Cheng, L.
- Chemical Engineering Research and Design, Vol. 78, Issue 7
Solids flow characteristics in loop-seal of a circulating fluidized bed
journal, January 1999
- Kim, Sung Won; Namkung, Won; Kim, Sang Done
- Korean Journal of Chemical Engineering, Vol. 16, Issue 1