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<p>Thermophotovoltaic energy conversion offers a means of efficiently converting heat into electrical power. This has potential benefits for space nuclear reactor power systems currently in development. The primary obstacle to space operation of thermophotovoltaic devices appears to be the low heat rejection temperatures which necessitate large radiator areas. A study of the tradespace between efficiency and radiator size indicates that feasible multi-junction TPV efficiencies result in substantial overall system mass reduction with manageable radiator area. The appendices introduce the endothermodynamic model of a TPV cell and briefly assess the utility of advanced carbon-carbon heat pipe radiator concepts.
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<br>Subjects: Nuclear reactors; Electric power; Space nuclear fission reactor; Thermphotovoltaics; Thermophotovoltaic; Thermophotovoltaic cell; Radiator; Carbon carbon heat pipe; Nuclear electric propulsion</div>
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Presby, Andrew L.</div>
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