Feedback regulated induction heater for a flowing fluid
Patent
·
OSTI ID:6117369
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.
- DOE Contract Number:
- W-7405-ENG-36
- Assignee:
- Dept. of Energy
- Patent Number(s):
- None
- Application Number:
- ON: TI85006508
- OSTI ID:
- 6117369
- Country of Publication:
- United States
- Language:
- English
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