Optical backscatter probe for sensing particulate in a combustion gas stream

Parks, James E; Partridge, William P

Title: Optical backscatter probe for sensing particulate in a combustion gas stream

Abstract

A system for sensing particulate in a combustion gas stream is disclosed. The system transmits light into a combustion gas stream, and thereafter detects a portion of the transmitted light as scattered light in an amount corresponding to the amount of particulates in the emissions. Purge gas may be supplied adjacent the light supply and the detector to reduce particles in the emissions from coating or otherwise compromising the transmission of light into the emissions and recovery of scattered light from the emissions.

Inventors:: Parks, James E; Partridge, William P

Issue Date:: 2013-05-28

Research Org.:: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)

Sponsoring Org.:: USDOE

OSTI Identifier:: 1083796

Patent Number(s):: 8451444

Application Number:: 12/491,781

Assignee:: UT-Battelle, LLC (Oak Ridge, TN)

Patent Classifications (CPCs):: G - PHYSICS G01 - MEASURING G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES

Show more

G - PHYSICS G01 - MEASURING G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
G01N2021/151 - {Gas blown}
G01N2021/8578 - {Gaseous flow
G01N21/15 - Preventing contamination of the components of the optical system or obstruction of the light path
G01N21/474 - {Details of optical heads therefor, e.g. using optical fibres}
G01N21/53 - within a flowing fluid, e.g. smoke
G01N21/85 - Investigating moving fluids or granular solids
G01N33/0029 - {cleaning}

Show less

DOE Contract Number:: AC05-00OR22725

Resource Type:: Patent

Country of Publication:: United States

Language:: English

Subject:: 54 ENVIRONMENTAL SCIENCES

Citation Formats


                    Parks, James E, and Partridge, William P. Optical backscatter probe for sensing particulate in a combustion gas stream.  United States: N. p., 2013. 
        Web.

Copy to clipboard


                    Parks, James E, & Partridge, William P. Optical backscatter probe for sensing particulate in a combustion gas stream.  United States.

Copy to clipboard


                    Parks, James E, and Partridge, William P. Tue .  
        "Optical backscatter probe for sensing particulate in a combustion gas stream".  United States.  https://www.osti.gov/servlets/purl/1083796.

Copy to clipboard


                    
@article{osti_1083796,

  title        = {Optical backscatter probe for sensing particulate in a combustion gas stream},

  author       = {Parks, James E and Partridge, William P},

  abstractNote = {A system for sensing particulate in a combustion gas stream is disclosed. The system transmits light into a combustion gas stream, and thereafter detects a portion of the transmitted light as scattered light in an amount corresponding to the amount of particulates in the emissions. Purge gas may be supplied adjacent the light supply and the detector to reduce particles in the emissions from coating or otherwise compromising the transmission of light into the emissions and recovery of scattered light from the emissions.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {2013},

  month        = {5}

}

Copy to clipboard

Patent:

Save / Share:

Export Metadata

Save to My Library

Works referenced in this record:

Portable on-board system for measuring vehicle exhaust particulate emissions
patent, August 2002

Vojtisek-Lom, Michal
US Patent Document 6,435,019
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/6435019

A new polarization‐modulated light scattering instrument
journal, December 1973

Hunt, Arlon J.; Huffman, Donald R.
Review of Scientific Instruments, Vol. 44, Issue 12
https://doi.org/10.1063/1.1686049

Portable LII based instrument and method for particulate characterization in combustion exhaust
patent, March 2004

Gupta, Sreenath Borra; Sekar, Ramanujam R.
US Patent Document 6,700,662
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/6700662

Method and apparatus for off-gas composition sensing
patent, November 1999

Ottesen, David Keith; Allendorf, Sarah Williams; Hubbard, Gary
US Patent Document 5,984,998
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/5984998

Apparatus for controlling the fuel injection quantity
patent, July 1999

Toyohara, Masahiro; Atago, Takeshi; Hori, Toshio
US Patent Document 5,921,226
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/5921226

Diesel Exhaust Particle Characterization by Polarized Light Scattering
conference, October 1998

Hunt, A. J.; Quinby-Hunt, M. S.; Shepherd, I. G.
International Fall Fuels and Lubricants Meeting and Exposition, SAE Technical Paper Series
https://doi.org/10.4271/982629

System for measuring particulate discharge from vehicular internal combustion engine
patent, November 1982

Kamiya, Sigeru; Wakayama, Junji; Hayashi, Nobutoshi
US Patent Document 4,361,028
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/4361028

Apparatus for measuring the particulate matter in the flue gas or exhaust gas from a combustion process
patent, April 1991

Grob, Ferdinand; Kienzler, Dieter; Linder, Ernst
US Patent Document 5,009,064
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/5009064

Diesel particulate monitor
patent, May 1992

Pataschnick, Harvey; Rupprecht, Georg
US Patent Document 5,110,747
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/5110747

Apparatus for analyzing particulates
patent, May 1988

Okayama, Junji; Noguchi, Naoki; Amimoto, Hiroyuki
US Patent Document 4,747,297
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/4747297

Particle monitoring system
patent, January 2000

Fishkin, Boris; Salzman, Phil
US Patent Document 6,011,622
URL: https://image-ppubs.uspto.gov/dirsearch-public/print/downloadPdf/6011622

Similar Records in DOE Patents and OSTI.GOV collections:

Optical sensing elements for nitrogen dioxide (NO.sub.2) gas detection, a sol-gel method for making the sensing elements and fiber optic sensors incorporating nitrogen dioxide gas optical sensing elements

Patent Mechery, Shelly John [Mississippi State, MS]; Singh, Jagdish P [Starkville, MS]

A sensing element, a method of making a sensing element, and a fiber optic sensor incorporating the sensing element are described. The sensor can be used for the quantitative detection of NO.sub.2 in a mixture of gases. The sensing element can be made by incorporating a diazotizing reagent which reacts with nitrous ions to produce a diazo compound and a coupling reagent which couples with the diazo compound to produce an azo dye into a sol and allowing the sol to form an optically transparent gel. The sensing element changes color in the presence of NO.sub.2 gas. The temporal responsemore » « less
Full Text Available
Method and apparatus for transport, introduction, atomization and excitation of emission spectrum for quantitative analysis of high temperature gas sample streams containing vapor and particulates without degradation of sample stream temperature

Patent Eckels, David E [Ankeny, IA]; Hass, William J [Ames, IA]

A sample transport, sample introduction, and flame excitation system for spectrometric analysis of high temperature gas streams which eliminates degradation of the sample stream by condensation losses.
Full Text Available
Method for removing particulate matter from a gas stream

Patent Postma, Arlin K [Benton City, WA]

Particulate matter is removed from a stream of pressurized gas by directing the stream of gas upwardly through a bed of porous material, the porous bed being held in an open ended container and at least partially submerged in liquid. The passage of the gas through the porous bed sets up a circulation in the liquid which cleans the particulate matter from the bed.
Full Text Available
Apparatus for removal of particulate matter from gas streams

Patent Smith, Peyton L [Baton Rouge, LA]; Morse, John C [Baton Rouge, LA]

An apparatus for the removal of particulate matter from the gaseous product stream of an entrained flow coal gasifier which apparatus includes an initial screen, an intermediate screen which is aligned with the direction of flow of the gaseous product stream and a final screen transversely disposed to the flow of gaseous product and which apparatus is capable of withstanding at least a pressure differential of about 10 psi (68.95 kPa) or greater at the temperatures of the gaseous product stream.
Full Text Available
Regenerative process and system for the simultaneous removal of particulates and the oxides of sulfur and nitrogen from a gas stream

Patent Cohen, Mitchell R [Troy, NY]; Gal, Eli [Lititz, PA]

A process and system for simultaneously removing from a gaseous mixture, sulfur oxides by means of a solid sulfur oxide acceptor on a porous carrier, nitrogen oxides by means of ammonia gas and particulate matter by means of filtration and for the regeneration of loaded solid sulfur oxide acceptor. Finely-divided solid sulfur oxide acceptor is entrained in a gaseous mixture to deplete sulfur oxides from the gaseous mixture, the finely-divided solid sulfur oxide acceptor being dispersed on a porous carrier material having a particle size up to about 200 microns. In the process, the gaseous mixture is optionally pre-filtered tomore » « less
Full Text Available

Similar Records

Title: Optical backscatter probe for sensing particulate in a combustion gas stream

Abstract

Citation Formats

Portable on-board system for measuring vehicle exhaust particulate emissions patent, August 2002

A new polarization‐modulated light scattering instrument journal, December 1973

Portable LII based instrument and method for particulate characterization in combustion exhaust patent, March 2004

Method and apparatus for off-gas composition sensing patent, November 1999

Apparatus for controlling the fuel injection quantity patent, July 1999

Diesel Exhaust Particle Characterization by Polarized Light Scattering conference, October 1998

System for measuring particulate discharge from vehicular internal combustion engine patent, November 1982

Apparatus for measuring the particulate matter in the flue gas or exhaust gas from a combustion process patent, April 1991

Diesel particulate monitor patent, May 1992

Apparatus for analyzing particulates patent, May 1988

Particle monitoring system patent, January 2000

Portable on-board system for measuring vehicle exhaust particulate emissions
patent, August 2002

A new polarization‐modulated light scattering instrument
journal, December 1973

Portable LII based instrument and method for particulate characterization in combustion exhaust
patent, March 2004

Method and apparatus for off-gas composition sensing
patent, November 1999

Apparatus for controlling the fuel injection quantity
patent, July 1999

Diesel Exhaust Particle Characterization by Polarized Light Scattering
conference, October 1998

System for measuring particulate discharge from vehicular internal combustion engine
patent, November 1982

Apparatus for measuring the particulate matter in the flue gas or exhaust gas from a combustion process
patent, April 1991

Diesel particulate monitor
patent, May 1992

Apparatus for analyzing particulates
patent, May 1988

Particle monitoring system
patent, January 2000