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Title: Microwave furnace having microwave compatible dilatometer

Abstract

An apparatus for measuring and monitoring a change in the dimension of a sample being heated by microwave energy is described. The apparatus comprises a microwave heating device for heating a sample by microwave energy, a microwave compatible dilatometer for measuring and monitoring a change in the dimension of the sample being heated by microwave energy without leaking microwaves out of the microwave heating device, and a temperature determination device for measuring and monitoring the temperature of the sample being heated by microwave energy. 2 figs.

Inventors:
; ;
Publication Date:
OSTI Identifier:
7274643
Patent Number(s):
US 5099096; A
Application Number:
PPN: US 7-505371
Assignee:
Martin Marietta Energy Systems, Inc., Oak Ridge, TN (United States) PTO; EDB-94-081285
DOE Contract Number:
AC05-84OR21400
Resource Type:
Patent
Resource Relation:
Patent File Date: 5 Apr 1990
Country of Publication:
United States
Language:
English
Subject:
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION; 47 OTHER INSTRUMENTATION; DILATOMETRY; FURNACES; TEMPERATURE MONITORING; INDUSTRY; MEASURING INSTRUMENTS; MICROWAVE HEATING; TEMPERATURE MEASUREMENT; HEATING; MONITORING; THERMAL ANALYSIS; 320303* - Energy Conservation, Consumption, & Utilization- Industrial & Agricultural Processes- Equipment & Processes; 440800 - Miscellaneous Instrumentation- (1990-)

Citation Formats

Kimrey, H.D. Jr., Janney, M.A., and Ferber, M.K. Microwave furnace having microwave compatible dilatometer. United States: N. p., 1992. Web.
Kimrey, H.D. Jr., Janney, M.A., & Ferber, M.K. Microwave furnace having microwave compatible dilatometer. United States.
Kimrey, H.D. Jr., Janney, M.A., and Ferber, M.K. 1992. "Microwave furnace having microwave compatible dilatometer". United States. doi:.
@article{osti_7274643,
title = {Microwave furnace having microwave compatible dilatometer},
author = {Kimrey, H.D. Jr. and Janney, M.A. and Ferber, M.K.},
abstractNote = {An apparatus for measuring and monitoring a change in the dimension of a sample being heated by microwave energy is described. The apparatus comprises a microwave heating device for heating a sample by microwave energy, a microwave compatible dilatometer for measuring and monitoring a change in the dimension of the sample being heated by microwave energy without leaking microwaves out of the microwave heating device, and a temperature determination device for measuring and monitoring the temperature of the sample being heated by microwave energy. 2 figs.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = 1992,
month = 3
}
  • An apparatus for measuring and monitoring a change in the dimension of a sample being heated by microwave energy is described. The apparatus comprises a microwave heating device for heating a sample by microwave energy, a microwave compatible dilatometer for measuring and monitoring a change in the dimension of the sample being heated by microwave energy without leaking microwaves out of the microwave heating device, and a temperature determination device for measuring and monitoring the temperature of the sample being heated by microwave energy.
  • The buildup of slag or ash on the interior surface of a furnace wall is monitored by disposing two coils to form a transformer which is secured adjacent to the inside surface of the furnace wall. The inductive coupling between the two coils of the transformer is affected by the presence of oxides of iron in the slag or ash which is adjacent to the transformer, and the application of a voltage to one winding produces a voltage at the other winding that is related to the thickness of the slag or ash buildup on the inside surface of themore » furnace wall. The output of the other winding is an electrical signal which can be used to control an alarm or the like or provide an indication of the thickness of the slag or ash buildup at a remote location.« less
  • The buildup of slag or ash on the interior surface of a furnace wall is monitored by disposing two coils to form a transformer which is secured adjacent to the inside surface of the furnace wall. The inductive coupling between the two coils of the transformer is affected by the presence of oxides of iron in the slag or ash which is adjacent to the transformer, and the application of a voltage to one winding produces a voltage at the other winding that is related to the thickness of the slag or ash buildup on the inside surface of themore » furnace wall. The output of the other winding is an electrical signal which can be used to control an alarm or the like or provide an indication of the thickness of the slag or ash buildup at a remote location.« less
  • The useful life of catalyst-filled tubes exposed to a heat source in a steam-light hydrocarbon reforming furnace is increased by painting at least a portion of the exposed surface of at least one tube with a liquid which forms a ceramic-like reflective surface on the tube.