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Title:
FUEL REDUCTION RATE OUTPUT SYSTEM, FUEL REDUCTION RATE OUTPUT METHOD, AND FUEL REDUCTION RATE OUTPUT PROGRAM
Document Type and Number:
WIPO Patent Application WO/2018/225481
Kind Code:
A1
Abstract:
A fuel reduction rate output system that calculates a fuel reduction rate affecting a fuel reduction measure, which is applied to a boiler combustion control system, wherein the fuel reduction rate output system has: a deviation determination unit that records the history of measured main steam pressures as a main steam pressure history, that calculates the deviation between the main steam pressure history and the measured main steam pressures, and that outputs the history of the main steam pressure for which the deviation is within a prescribed range as a history of control main steam pressure; a standard deviation calculation unit that calculates a standard deviation on the basis of the history of control main steam pressure output by the deviation determination unit; and a fuel reduction rate output unit that calculates a standard deviation improvement rate on the basis of the standard deviation calculated by the standard deviation calculation unit and that calculates and outputs the fuel reduction rate on the basis of a reference equation indicating the relationship between the standard deviation improvement rate and the fuel reduction rate.

Inventors:
KAMIHASHIRA, Daisuke (1-1, Marunouchi 3-chome, Chiyoda-k, Tokyo 21, 〒1008321, JP)
TANIGUCHI, Kazunori (1-1, Marunouchi 3-chome, Chiyoda-k, Tokyo 21, 〒1008321, JP)
YAMASHITA, Toru (1-1, Marunouchi 3-chome, Chiyoda-k, Tokyo 21, 〒1008321, JP)
OKAMURA, Yuji (4-1Hamamatsu-cho 2-chome, Minato-k, Tokyo 34, 〒1056134, JP)
KASHIMA, Nobuhiro (3-2 Marunouchi 2-chome, Chiyoda-k, Tokyo 05, 〒1000005, JP)
SUTOH, Kenichiro (3-2 Marunouchi 2-chome, Chiyoda-k, Tokyo 05, 〒1000005, JP)
Application Number:
JP2018/019302
Publication Date:
December 13, 2018
Filing Date:
May 18, 2018
Export Citation:
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Assignee:
IDEMITSU KOSAN CO.,LTD. (1-1 Marunouchi 3-chome, Chiyoda-ku Tokyo, 21, 〒1008321, JP)
NYK TRADING CORPORATION (4-1Hamamatsu-cho 2-chome, Minato-ku Tokyo, 34, 〒1056134, JP)
NIPPON YUSEN KABUSHIKI KAISHA (3-2 Marunouchi 2-chome, Chiyoda-ku Tokyo, 05, 〒1000005, JP)
International Classes:
F22B35/00
Foreign References:
JP2015135219A2015-07-27
JPH08327036A1996-12-10
JP2010096482A2010-04-30
JP2013164195A2013-08-22
Attorney, Agent or Firm:
TSUTSUI & ASSOCIATES (3F Shinjuku Gyoen Bldg, 3-10 Shinjuku 2-chome, Shinjuku-k, Tokyo 22, 〒1600022, JP)
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