Actions for Light bulb heat exchanger for magnetohydrodynamic generator applications - Preliminary evaluation

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Light bulb heat exchanger for magnetohydrodynamic generator applications - Preliminary evaluation

Author
Seikel, G. R.
Published
Mar 1, 1974.
Physical Description
1 electronic document
Additional Creators
Smith, J. M. and Hwang, C. C.
Online Version

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Unclassified, Unlimited, Publicly available.
Free-to-read Unrestricted online access
Summary
The light-bulb heat-exchanger concept is investigated as a possible means of using a combustion heat source to supply energy to an inert gas MHD power generator system. In this concept, combustion gases flow through a central passage which consists of a duct with transparent walls through which heat is transferred by radiation to a radiation receiver which in turn heats the inert gas by convection. The effects of combustion-gas emissivity, transparent-wall-transmissivity, radiation-receiver emissivity, and the use of fins in the inert gas coolant passage are studied. The results indicate that inert gas outlet temperatures of 2500 K are possible for combustion temperatures of 3200 K and that sufficient energy can be transferred from the combustion gas to reduce its temperature to approximately 2000 K. At this temperature more conventional heat exchangers can be used.
Other Subject(s)
Collection
NASA Technical Reports Server (NTRS) Collection.
Note
Document ID: 19740010444.
Accession ID: 74N18557.
NASA-TN-D-7534.
E-7593.
Terms of Use and Reproduction
No Copyright.
View MARC record | catkey: 15745562