Hydroball string sensing system
Abstract
A hydroball string sensing system for a nuclear reactor that includes stainless tubes positioned to guide hydroball strings into and out of the nuclear reactor core. A sensor such as an ultrasonic transducer transmitter and receiver is positioned outside of the nuclear reactor core and adjacent to the tube. The presence of an object such a bullet member positioned at an end a hydroball string, or any one of the hydroballs interrupts the transmission of ultrasound from the transmitter to the receiver. Alternatively, if the bullet member and hydroballs include a ferritic material, either a Hall effect sensor or other magnetic field sensors such as a magnetic field rate of change sensor can be used to detect the location and position of a hydroball string. Placing two sensors along the tube with a known distance between the sensors enables the velocity of a hydroball string to be determined. This determined velocity can be used to control the flow rate of a fluid within the tube so as to control the velocity of the hydroball string.
- Inventors:
-
- Pittsburgh, PA
- Delmont, PA
- Issue Date:
- Research Org.:
- Westinghouse Electric Corp., Pittsburgh, PA (United States)
- OSTI Identifier:
- 868062
- Patent Number(s):
- 5064603
- Assignee:
- Westinghouse Electric Corp. (Pittsburgh, PA)
- Patent Classifications (CPCs):
-
G - PHYSICS G21 - NUCLEAR PHYSICS G21C - NUCLEAR REACTORS
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02E - REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- DOE Contract Number:
- AC03-86SF16038
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- hydroball; string; sensing; nuclear; reactor; stainless; tubes; positioned; guide; strings; core; sensor; ultrasonic; transducer; transmitter; receiver; outside; adjacent; tube; presence; bullet; hydroballs; interrupts; transmission; ultrasound; alternatively; ferritic; material; effect; magnetic; field; sensors; rate; change; detect; location; position; placing; distance; enables; velocity; determined; control; flow; fluid; hydroball string; ultrasonic transducer; magnetic field; nuclear reactor; flow rate; reactor core; positioned outside; tubes positioned; string sensing; ferritic material; field sensor; /376/73/
Citation Formats
Hurwitz, Michael J, Ekeroth, Douglas E, and Squarer, David. Hydroball string sensing system. United States: N. p., 1991.
Web.
Hurwitz, Michael J, Ekeroth, Douglas E, & Squarer, David. Hydroball string sensing system. United States.
Hurwitz, Michael J, Ekeroth, Douglas E, and Squarer, David. Tue .
"Hydroball string sensing system". United States. https://www.osti.gov/servlets/purl/868062.
@article{osti_868062,
title = {Hydroball string sensing system},
author = {Hurwitz, Michael J and Ekeroth, Douglas E and Squarer, David},
abstractNote = {A hydroball string sensing system for a nuclear reactor that includes stainless tubes positioned to guide hydroball strings into and out of the nuclear reactor core. A sensor such as an ultrasonic transducer transmitter and receiver is positioned outside of the nuclear reactor core and adjacent to the tube. The presence of an object such a bullet member positioned at an end a hydroball string, or any one of the hydroballs interrupts the transmission of ultrasound from the transmitter to the receiver. Alternatively, if the bullet member and hydroballs include a ferritic material, either a Hall effect sensor or other magnetic field sensors such as a magnetic field rate of change sensor can be used to detect the location and position of a hydroball string. Placing two sensors along the tube with a known distance between the sensors enables the velocity of a hydroball string to be determined. This determined velocity can be used to control the flow rate of a fluid within the tube so as to control the velocity of the hydroball string.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1991},
month = {1}
}