US 12,292,275 B2
Scale thickness estimating system, scale thickness estimating method, and scale thickness estimating program
Tatsuya Hazuku, Tokyo (JP); and Motoaki Morita, Tokyo (JP)
Assigned to NATIONAL UNIVERSITY CORPORATION TOKYO UNIVERSITY OF MARINE SCIENCE AND TECHNOLOGY, Tokyo (JP)
Appl. No. 17/048,527
Filed by NATIONAL UNIVERSITY CORPORATION TOKYO UNIVERSITY OF MARINE SCIENCE AND TECHNOLOGY, Tokyo (JP)
PCT Filed Apr. 3, 2019, PCT No. PCT/JP2019/014750
§ 371(c)(1), (2) Date Oct. 16, 2020,
PCT Pub. No. WO2019/202981, PCT Pub. Date Oct. 24, 2019.
Claims priority of application No. 2018-079246 (JP), filed on Apr. 17, 2018.
Prior Publication US 2021/0108917 A1, Apr. 15, 2021
Int. Cl. G01K 17/00 (2006.01); F23J 3/02 (2006.01); F23M 5/08 (2006.01); G01B 21/08 (2006.01)
CPC G01B 21/085 (2013.01) [F23J 3/02 (2013.01); F23M 5/08 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A scale thickness estimating system, the system comprising:
a thermocouple configured to penetrate an outer surface of a member that forms a flow path of a fluid and acquire a temperature of the fluid flowing in the flow path;
a thermometer that measures a temperature of the outer surface of the member;
a heat flux meter that acquires a heat flux on the outer surface of the member; and
a processor configured to:
acquire a flow path wall thermal conductivity of the member;
acquire a scale thermal conductivity of scale depositing on an inner surface of the member; and
estimate a thickness of the scale based on the temperature of the fluid, the temperature of the outer surface, the heat flux, the flow path wall thermal conductivity, the scale thermal conductivity and a thickness of the member.