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Title: Feedback regulated induction heater for a flowing fluid

Abstract

A regulated induction heater for heating a stream of flowing fluid to a predetermined desired temperature. The heater includes a radiofrequency induction coil which surrounds a glass tube through which the fluid flows. A heating element consisting of a bundle of approximately 200 stainless steel capillary tubes located within the glass tube couples the output of the induction coil to the fluid. The temperature of the fluid downstream from the heating element is sensed with a platinum resistance thermometer, the output of which is applied to an adjustable porportional and integral feedback control circuit which regulates the power applied to the induction coil. The heater regulates the fluid temperature to within 0.005/sup 0/C at a flow rate of 50 cm/sup 3//sec with a response time of less than 0.1 second, and can accommodate changes in heat load up to 1500 watts.

Inventors:
;
Issue Date:
OSTI Identifier:
6117369
Application Number:
ON: TI85006508
Assignee:
Dept. of Energy EDB-85-038909
DOE Contract Number:  
W-7405-ENG-36
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING; ELECTRIC HEATING; INDUCTION; FLUID FLOW; TUBES; HEATING; 420200* - Engineering- Facilities, Equipment, & Techniques

Citation Formats

Migliori, A., and Swift, G.W. Feedback regulated induction heater for a flowing fluid. United States: N. p., 1984. Web.
Migliori, A., & Swift, G.W. Feedback regulated induction heater for a flowing fluid. United States.
Migliori, A., and Swift, G.W. Wed . "Feedback regulated induction heater for a flowing fluid". United States.
@article{osti_6117369,
title = {Feedback regulated induction heater for a flowing fluid},
author = {Migliori, A. and Swift, G.W.},
abstractNote = {A regulated induction heater for heating a stream of flowing fluid to a predetermined desired temperature. The heater includes a radiofrequency induction coil which surrounds a glass tube through which the fluid flows. A heating element consisting of a bundle of approximately 200 stainless steel capillary tubes located within the glass tube couples the output of the induction coil to the fluid. The temperature of the fluid downstream from the heating element is sensed with a platinum resistance thermometer, the output of which is applied to an adjustable porportional and integral feedback control circuit which regulates the power applied to the induction coil. The heater regulates the fluid temperature to within 0.005/sup 0/C at a flow rate of 50 cm/sup 3//sec with a response time of less than 0.1 second, and can accommodate changes in heat load up to 1500 watts.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1984},
month = {6}
}