Method of determining differences or changes in the rate of heat

Details Method of determining differences or changes in the rate of heat Method of determining differences or changes in the rate of heat

1992-02-21

1992-12-15

Walsh, Donald P.

Induced nuclear reactions: processes, systems, and elements

Testing, sensing, measuring, or detecting a fission reactor...

Temperature or pressure measurement

376245, 374 43, 374 44, 165 111, G21C 17017

Patent

active

051715180

ABSTRACT:
A method for detecting changes in the rate of heat transfer through a tube wall due to the deposition or removal of deposits formed thereon. The method involves obtaining a segment of tubing, placing a highly conductive material in contact with one of the inner surface and outer surface of the tubing wall, contacting the other of the inner and outer surface of the tubing wall with a heating or cooling medium, and measuring the time required for the temperature of the thermally conductive material to change between two predetermined temperature measurement points. Subsequently, the wall of the tubing segment is cleaned or the tubing segment is replaced with a different tubing segment, and the rate of temperature change of the tube walls is tested again in a similar manner. By comparing the times measured in the first and second trials, the difference in the rate of heat transfer before and after cleaning of the tubing segment can be determined.

REFERENCES:
patent: 3592060 (1971-07-01), Laverman
patent: 4024751 (1977-05-01), Potrzebowski
patent: 4396300 (1983-08-01), Characklis et al.
patent: 4541730 (1985-09-01), Comey et al.
patent: 4729667 (1988-03-01), Blangetti et al.

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