Title:
METHOD AND APPARATUS FOR MEASURING THERMAL RESISTANCE
Document Type and Number:
Japanese Patent JP3152837
Kind Code:
B2
Abstract:
PURPOSE: To improve the measuring accuracy of a thermal resistance, to simplify the measuring operation, and to allow it to be applied to a tube of various structures or a flat heat exchanging wall in a method and an apparatus for measuring the resistance in which the quantity of adhered scale or slime to the inner surface of the tube to be measured is specified.
CONSTITUTION: The temperature of fluid F flowing in a tube 1 to be measured and the temperature of a heat source 2 disposed near the tube 1 to be measured are detected by a temperature sensor 21 to measure the temperature difference of the both, and the heat flow rate to be transferred between the tube 1 to be measured and the source 2 is measured by a heat flow sensor 3, and the resistance of the tube 1 to be measured is calculated based on the difference and the flow rate.
Inventors:
Hirohide Niisato
Kiyotsugu Kano
Eisaku Nakajima
Kiyotsugu Kano
Eisaku Nakajima
Application Number:
JP14932294A
Publication Date:
April 03, 2001
Filing Date:
June 30, 1994
Export Citation:
Assignee:
Kyoto Electronics Industry Co., Ltd.
Kyushu Electric Power Co., Inc.
Kyushu Electric Power Co., Inc.
International Classes:
G01N25/18; (IPC1-7): G01N25/18
Domestic Patent References:
| JP6126809A | ||||
| JP63300A | ||||
| JP5471679A |
Other References:
中島英作、外１名、”ボイラチューブ伝熱特性評価装置の開発”、九州電力株式会社総合研究所研究期報、九州電力株式会社総合研究所、平成６年１０月、ｐ．１１９−１３０
Attorney, Agent or Firm:
Toyoaki Fukui