Performance analysis of a multitube vapor-anode AMTEC cell
作者： J.-M. Tournier , M.S. El-Genk , Lianmin Huang , M. Schuller
DOI: 10.1109/IECEC.1997.661934
关键词: Vapor pressure 、 Mechanics 、 Materials science 、 Heat transfer 、 Direct energy conversion 、 Anode 、 Shields 、 Thermal conduction 、 Volumetric flow rate 、 Energy conversion efficiency 、 Thermodynamics
摘要: A detailed AMTEC performance and evaluation analysis model (APEAM) was developed to predict the of next-generation Pluto Express vapor-anode multitube cells. APEAM incorporates an axial electrochemical model, which accounts for effects nonuniform temperature vapor pressure profiles along BASE tubes; a loss includes free-molecular, transition continuum flow regimes; comprehensive radiation/conduction circumferential thermal shields above tubes conduction studs between hot end cell support plate. Model results compared well with measured electrical power experimental I-V characteristics PX-2C cell, recently tested at Phillips Laboratory. The peak electric 4.4 We occurred external load resistance 3.0 /spl Omega/. At higher (or lower demand), load-following. Results also showed that on low-pressure side in regime. evaporator wick provided sodium rate (8 g/hour) necessary operate about 950 K. predicted using molybdenum shield inside wall, near condenser, would increase conversion efficiency by sim/23%.
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