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Title: Multiple module furnace system

Abstract

A self-contained furnace module is described for heating a sample in outer space and a control system therefor, the furnace module and control system being secured to a furnace frame within a space flight vehicle and comprising: furnace means for heating the sample, the furnace means having an outer protective tube and an inner heater carrying tube, each of the inner and outer tubes having a cylindrical configuration and being coaxially spaced relative to one another, thermal insulation disposed between the outer protective and inner heater carrying tubes, at least one crucible located within and spaced from the inner heater carrying tube of the furnace means for receiving therewithin the sample to be heated, spacer means extending radially from at least one crucible to the inner heater carrying tube so as to form fluid channels therebetween and provide heat exchange surfaces to dissipate heat developed at the crucible, means for supplying a cooling fluid surrounding the outer protective tube of the furnace module for providing thermal isolation in the module from the surrounding environment, means for supplying a heat exchange fluid to the fluid channels formed between the spacer means, heater means interfaced with the inner heater carrying tube formore » supplying heat to the crucible, power supply means for activating the heater means, sensing means interfaced with the heater means for supplying a signal that is indicative of the temperature developed by the heater means, signal processing means to receive the temperature indicating signal from the sensing means and control the respective operations of the cooling fluid supply means and the heat exchange fluid supply means, and feedback temperature control means interconnected between the signal processing means and the heater means for controlling the operation of the heater means and causing the heating of the furnace means to a particular predetermined temperature for a particular predetermined time.« less

Inventors:
;
Publication Date:
OSTI Identifier:
5331346
Patent Number(s):
US 4603730
Assignee:
GTI Corp., San Diego, CA
Resource Type:
Patent
Resource Relation:
Patent File Date: Filed date 30 Jun 1982
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING; 32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION; FURNACES; CONTROL SYSTEMS; DESIGN; OPERATION; SPACE VEHICLES; COOLANTS; HEAT EXCHANGERS; HEAT TRANSFER FLUIDS; SIGNALS; SPACE DEPENDENCE; TEMPERATURE CONTROL; THERMAL INSULATION; THERMOMETERS; TIME DEPENDENCE; CONTROL; FLUIDS; MEASURING INSTRUMENTS; VEHICLES; 421000* - Engineering- Combustion Systems; 320201 - Energy Conservation, Consumption, & Utilization- Transportation- Air & Aerospace

Citation Formats

Davis, E K, and Chew, W F. Multiple module furnace system. United States: N. p., 1986. Web.
Davis, E K, & Chew, W F. Multiple module furnace system. United States.
Davis, E K, and Chew, W F. Tue . "Multiple module furnace system". United States.
@article{osti_5331346,
title = {Multiple module furnace system},
author = {Davis, E K and Chew, W F},
abstractNote = {A self-contained furnace module is described for heating a sample in outer space and a control system therefor, the furnace module and control system being secured to a furnace frame within a space flight vehicle and comprising: furnace means for heating the sample, the furnace means having an outer protective tube and an inner heater carrying tube, each of the inner and outer tubes having a cylindrical configuration and being coaxially spaced relative to one another, thermal insulation disposed between the outer protective and inner heater carrying tubes, at least one crucible located within and spaced from the inner heater carrying tube of the furnace means for receiving therewithin the sample to be heated, spacer means extending radially from at least one crucible to the inner heater carrying tube so as to form fluid channels therebetween and provide heat exchange surfaces to dissipate heat developed at the crucible, means for supplying a cooling fluid surrounding the outer protective tube of the furnace module for providing thermal isolation in the module from the surrounding environment, means for supplying a heat exchange fluid to the fluid channels formed between the spacer means, heater means interfaced with the inner heater carrying tube for supplying heat to the crucible, power supply means for activating the heater means, sensing means interfaced with the heater means for supplying a signal that is indicative of the temperature developed by the heater means, signal processing means to receive the temperature indicating signal from the sensing means and control the respective operations of the cooling fluid supply means and the heat exchange fluid supply means, and feedback temperature control means interconnected between the signal processing means and the heater means for controlling the operation of the heater means and causing the heating of the furnace means to a particular predetermined temperature for a particular predetermined time.},
doi = {},
url = {https://www.osti.gov/biblio/5331346}, journal = {},
number = ,
volume = ,
place = {United States},
year = {1986},
month = {8}
}