EMISSION AMOUNT ESTIMATION DEVICE, EMISSION AMOUNT ESTIMATION METHOD, AND PROGRAM

WIPO Patent Application WO/2024/048062

A1

This emission amount estimation device comprises: a detection unit that detects a jet flow of leaking gas on the basis of a captured inspection image of an inspection object; an outlet diameter measurement unit that measures an outlet diameter indicating the size of a jet flow outlet of the inspection object on the basis of the inspection image; a speed calculation unit that calculates the flow speed of a potential core region of the jet flow on the basis of the inspection image; a volume calculation unit that calculates the volume of the jet flow on the basis of the outlet diameter and the flow speed of the jet flow; a concentration estimation unit that estimates a leakage gas concentration indicating the concentration of the leaking gas, on the basis of the luminance value of the potential core region in the inspection image, and a gas concentration-luminance table establishing a relationship between the concentration of the gas and a luminance value of a captured image of the gas; and an emission amount estimation unit that estimates an emission amount of the gas on the basis of the volume of the jet flow and the leakage gas concentration.

IKEDA TAKASHI (JP)
SUZUKI KEITA (JP)
ARAKAWA YOSHIAKI (JP)
KAMIHARA NOBUYUKI (JP)
INUI MASAYUKI (JP)
SHIBUYA HIDEKAZU (JP)
ISHIMOTO YOSHITAKA (JP)

PCT/JP2023/024643

March 07, 2024

July 03, 2023

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MITSUBISHI HEAVY IND LTD (JP)

G01M3/02

JP6693609B1	2020-05-13
JP2000310577A	2000-11-07
JP6848965B2	2021-03-24
US20200116583A1	2020-04-16

MATSUNUMA Yasushi et al. (JP)

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