Accession Number : AD0433212


Title :   DEVELOPMENT OF HIGH ENTHALPY, HIGH POWER ARC AIR HEATERS.


Descriptive Note : Rept. for 15 June 61-15 July 63,


Corporate Author : UNION CARBIDE CORP INDIANAPOLIS IND LINDE DIV


Personal Author(s) : Sarlitto ,R J ; Eschenbach ,R C ; Bryson ,D A ; Laakaniemi ,R N ; Troue,H H


Report Date : Feb 1964


Pagination or Media Count : 85


Abstract : The research program was directed toward increasing appreciably both the enthalpy attainable from air arc heaters at chamber pressures from 10 to 100 atmospheres and the power level at which satisfactory operation can be expected. Major achievements may be summarized as: (1) The enthalpy attainable at a given chamber pressure was more than doubled in comparison to the status at the beginning of the contract; enthalpies of about 10,000 Btu/lb at 90 to 100 atmospheres. (2) Applicability of the scaling laws previously determined was shown to be valid in the higher enthalpy operating area now attainable, although with less precision than found before. Design of a 50 MW heater, to operate over a range of pressures and enthalpies, was satisfactorily completed. (3) A 4MW high enthalpy heater, to be delivered to AFFDL, was operated at 7100 Btu/lb air enthalpy at 10 atmosphere chamber pressure at 1.8 MW with quite low erosion rate. (Author)


Descriptors :   *HYPERSONIC WIND TUNNELS , HEATING ELEMENTS , ELECTRIC ARCS , PLASMA JETS , HEATERS , GASES , DYNAMICS , THERMODYNAMICS , ELECTRODES , INJECTION , POLARIZATION , HYPERBARIC CONDITIONS , SCIENTIFIC RESEARCH , SIMULATION , TEST FACILITIES , TEST METHODS , ENTHALPY , PERFORMANCE(ENGINEERING) , ALTERNATING CURRENT , CONFIGURATIONS , ANODES , PHASE MEASUREMENT , COOLING , DIRECT CURRENT


Distribution Statement : APPROVED FOR PUBLIC RELEASE