Accession Number : AD0761015

Title :   Reliability of a Series-Parallel System of Thermionic Diodes,

Corporate Author : ARMY MATERIEL COMMAND TEXARKANA TEX INTERN TRAINING CENTER

Personal Author(s) : Gassner,John J. , Jr

Report Date : JUL 1971

Pagination or Media Count : 98

Abstract : The paper presents a method of predicting the reliability of a series-parallel system of N thermionic diodes. In certain applications it is considered desirable to maintain a constant system power output regardless of changes in system operating conditions. When one component fails, surviving components heat up and individually assume a greater portion of the total power output. Increased thermal stress is thereby placed upon each component and failure, which is assumed proportional to both time and temperature of operation, is seen to occur at an increased rate. A method of predicting such parameters as number of remaining diodes, system temperature, and mean time to next failure is presented. Also included are suggestions for further research. (Author)

Descriptors :   (*THERMIONIC CONVERTERS, *RELIABILITY(ELECTRONICS)), ENERGY CONVERSION, THERMIONIC EMISSION, SPACE CHARGE, COMPUTER PROGRAMS, STATISTICAL ANALYSIS

Subject Categories : Electric Power Production and Distribution

Distribution Statement : APPROVED FOR PUBLIC RELEASE