International Publication Date PCT January W O 2008/011250 A 3

(12) INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT)

(19) World Intellectual Property Organization International Bureau

(43) International Publication Date 24 January 2008 (24.01.2008)

PCT

(10) International Publication Number

WO 2008/011250 A3

(51) International Patent Classification:

G05B 13/02 (2006.01)

GOlM 17/00 (2006.01)

GOlD 3/00 (2006.01)

GOlM 19/00 (2006.01)

GOlL 25/00 (2006.01)

GOlP 21/00 (2006.01)

GOlM 7/00 (2006.01)

GOlR 35/00 (2006.01)

GOlM 9/00 (2006.01)

G06F 19/00 (2006.01)

GOlM 15/00 (2006.01)

(21) International Application Number: PCT/US2007/072218

(22) International Filing Date: 27 June 2007 (27.06.2007)

(25) Filing Language:

English

(26) Publication Language:

English

(30) Priority Data: 11/458,522

19 July 2006 (19.07.2006) US

(71) Applicant (for all designated States except US): FUEL AND FURNACE CONSULTING, INC. [US/US]; 416 Timber Lake Drive, Venetia, PA 15367 (US).

(72) Inventors: HANSON, Simon, P.; 4 16 Timber Lake Drive, Venetia, PA 15367 (US). ABBOTT, Murray, E ; 2174 Clairmont Drive, Upper St. Clair, PA 15241 (US).

(74) Agent: MCKAY, Donald, J.; McKay & Associates, RC, 801 McNeilly Road, Pittsburgh, PA 15226 (US).

(81) Designated States (unless otherwise indicated, for every kind of national protection available): AE, AG, AL, AM, AT, AU, AZ, BA, BB, BG, BH, BR, BW, BY, BZ, CA, CH, CN, CO, CR, CU, CZ, DE, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PG, PH, PL, PT, RO, RS, RU, SC, SD, SE, SG, SK, SL, SM, SV, SY, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW

(84) Designated States (unless otherwise indicated, for every kind of regional protection available): ARIPO (BW, GH, GM, KE, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, ZM, ZW), Eurasian (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM),

[Continued on next page]

(54) Title: PERTURBATION TEST METHOD FOR MEASURING OUTPUT RESPONSES

(57) Abstract: The present invention is a method for determining the optimum operating practice for an indus trial process. The methodology includes a combination of process control steps and data analysis techniques to investigate responses to controlled "black box" process inputs, e.g., coal and air feeds for coal-fired furnaces in the case studies above. A unique time-dependent perturbation is specified (10), then applied to individual process feed streams (20) to give a signature in the data that permits the acquisition (30), assemblage (50), filtering (60), and detection of various measured responses for regulated electric utility furnaces. The perturbation is implemented using the plant control system data (40). Individual control signal set points are perturbed using matrix calculations (70) for each piece of equipment supplying process inputs of interest. As a result, complex commercial processes can be evaluated for optimization (80) without changing the normal configuration of the system.

European (AT,BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HU, IE, IS, IT, LT,LU, LV,MC, MT, NL, PL, PT, RO, SE, SI, SK, TR), OAPI (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG).

Declaration under Rule 4.17: -- as to the applicant's entitlement to claim the priority of the

earlier application (Rule 4.17(Ui))

Published: -- with international search report -- before the expiration of the time limit for amending the

claims and to be republished in the event of receipt of amendments

(88) Date of publication of the international search report: 18 September 2008

INTERNATIONAL SEARCH REPORT

International application No.

PCT/US07/72218

A. CLASSIFICATION OF SUBJECT MATTER

IPC-

G05B 13/02( 2006.01);G01D 3/00( 2006.01);G01L 25/00( 2006.01);G01M 7/00( 2006.0 1),9/00( 2006.01),15/00(

2006.01),17/00( 2006.01),19/00( 2006.01);G01P 21/00( 2006.01);G01R 35/00( 2006.01);G06F 19/00( 2006.01)

USPC:

700/28,38,39;702/108,109 5l 12,1 13

According to International Patent Classification (IPC) or to both national classification and IPC

B. FIELDS SEARCHED

Minimum documentation searched (classification system followed by classification symbols) U.S. : 700/28,38,39; 702/108,109,1 12,1 13

Documentation searched other than minimum documentation to the extent that such documents are included in the fields searched

Electronic data base consulted during the international search (name of data base and, where practicable, search terms used) EAST

C . DOCUMENTS CONSIDERED TO BE RELEVANT

Category '

Citation of document, with indication, where appropriate, of the relevant passages

Y, P

US 7,194,317 B2 (KOTHARE et al) 20 March 2007 (02.03.2007), Figure 3 and its

corresponding textual description, C6 L17-60, C l L6 - C3 L5, C25 L23-37, C18 L58-67, C2

Ll 8-22.

Y

US 6,278,899 B l (PICHE et al.) 2 1 August 2001 (21 .08.2001), C44 L24 - C46 L4

A

US 6,002,232 (MCCONNELL et al.) 14 December 1999 (14.12.1999), entire document

A

US 6,567,71 1 B l (HOSEK et al.) 20 May 2003 (20.05.2003), entire document

A

US 6,353,766 B l (WEINZIERL) 05 March 2002 (05.03.2002), entire document

A

US 2004/0162624 A l (PAPIERNIK et al.) 19 August 2004 (19.08.2004), entire document

Relevant to claim No. 1-18

1-18 1-18 1-18 1-18 1-18

Further documents are listed in the continuation of Box C.

?

Special categories of cited documents

"T

"A" document defining the general state of the art which is not considered to be of particular relevance "X"

"E" earlier application or patent published on or after the international filing date

"L" document which may throw doubts on priority claim(s) or which is cited to

establish the publication date of another citation or other special reason (as

UY"

specified)

"O" document referring to an oral disclosure, use, exhibition or other means

See patent family annex.

later document published after the international filing date or priority date and not in conflict with the application but cited to understand the principle or theory underlying the invention

document of particular relevance, the claimed invention cannot be considered novel or cannot be considered to involve an inventive step when the document is taken alone

document of particular relevance, the claimed invention cannot be considered to involve an inventive step when the document is combined with one or more other such documents, such combination being obvious to a person skilled in the art

"P" document published pnor to the international filing date but later than the priority date claimed

Date of the actual completion of the international search

26 May 2008 (26.05.2008) Name and mailing address of the ISA/US

Mail Stop PCT, Ann ISA/US Commissioner for Patents P O Box 1450 Alexandria, Virginia 22313-1450 Facsimile No. (571) 273-3201

Form PCT/ISA/210 (second sheet) (April 2007)

"&"

document member of the same patent family

Date of mailing, of.the

15 JUL

Jional search report

Authorized officer

V/ \l ~~

Ronald D Hartman Jr.

Telephone No. 571-272-3684

INTERNATIONAL SEARCH REPORT

International application No. PCT/US07/72218

C (Continuation). DOCUMENTS CONSIDERED T O BE RELEVANT

Category ' A

Citation of document, with indication, where appropriate, of the relevant passages US 7,092,856 B l (HOJO et al.) 15 August 2006 (15.08.2006), enure document

A

US 5,406,496 (QUINN) 11 April 1995 ( 11.04.1995), entire document

A

US 4,349,869 (PRETT et al.) 14 September 1982 (14.09.1982), entire document

A

US 6,079,205 (YASUI et al.) 27 June 2000 (27.06.2000), entire document

Relevant to claim No 1-18 1-18 1-18 1-18

Form PCT/ISA/210 (continuation of second sheet) (April 2007)

INTERNATIONAL SEARCH REPORT

Continuation of Item 4 of the first sheet: Current title is too long. New title is as follows: Perturbation Test Method For Measuring Output Responses.

nternat ona app cat on o. PCT/US07/72218

Form PCT/ISA/210 (extra sheet) (April 2007)

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