The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 07, 2020
Filed:
Oct. 14, 2015
Mitsubishi Hitachi Power Systems, Ltd., Yokohama, JP;
Hiroyoshi Kubo, Tokyo, JP;
Hiromi Aota, Tokyo, JP;
Yoshinori Koyama, Tokyo, JP;
Kenichiro Kosaka, Tokyo, JP;
Yasunari Shibata, Yokohama, JP;
Yuichiro Urakata, Yokohama, JP;
MITSUBISHI HITACHI POWER SYSTEMS, LTD., Yokohama-Shi, JP;
Abstract
An anomaly monitoring device is installed in an integrated gasification combined cycle plant that experiences varying loads, and the device monitors a heat exchanger that performs heat exchange between a carbon-containing fuel and a heat exchange medium flowing through a heat transfer tube. For each load on the integrated gasification combined cycle plant, the anomaly monitoring device calculates the average value and the standard deviation of a state quantity of the heat exchanger, calculates the Mahalanobis distance on the basis of the average value and the standard deviation, and from the calculated Mahalanobis distance determines the presence or absence of an anomaly of the heat transfer surface of the heat transfer tube.