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Publications By Topic : Advanced Radioisotope Power Systems (ARPS) Schriener, T.M., M. S. El-Genk, "Thermal Analyses of 440 We Thermoacoustic Radioisotope Power System," J. Nuclear Engineering and Design" . J. Nuclear Engineering and Design, 385, 111504, 2021. El-Genk, M. S., T. M. Schriener, and J. J. Breedlove, "Thermal Analyses of Heat Source Assembly for a Dual Loop, Turbo-Brayton Radioisotope Power System" . Journal of Thermal Science and Engineering Progress, 10, 82-91, 2019. Breedlove, J. J., M. V. Zagarola, T. M. Conboy, A. Shah, C.Yu Lu, M. S. El-Genk, T. Schriner, "Turbo-Brayton Converter for Radioisotope Power Systems" . In Proceedings, Nuclear and Emerging Technologies for Space (NETS-2018), American Nuclear Society, 2018. Saber, H. H. and M. S. El-Genk, "Effects of Metallic Coatings on the Performance of Skutterudite-Based Segmented Unicouples" . J. Energy Conversion and Management, 48(4), 1383-1400, 2007. Saber, H. H., M. S. El-Genk, and T. Caillat, "Test Results of Skutterudite-Based Thermoelectric Unicouples" . J. Energy Conversion and Management, 48, 555-567, 2007. El-Genk, M. and H. Saber, "Thermal and Performance Analyses of Efficient Radioisotope Power Systems" . J. Energy Conversion and Management, 47, 2290-2307, 2006. Saber, H. H. and M. S. El-Genk, "Three-Dimensional Analyses of Skutterudite-Based Segmented Unicouples with Metallic Coating" . Proceedings of Space Technology and Applications International Forum (STAIF-06), AIP Conference Proceedings No. 813, 581-589, 2006. El-Genk, M. S. and H. H. Saber, "Modeling and optimization of Segmented Thermoelectric Generators for Terrestrial and Space Applications" . CRC Handbook of Thermoelectrics, CRC Press, 2005. El-Genk, M. S. and H. H. Saber, "Parametric and optimization Analyses of Cascaded Thermoelectric-Advanced Radioisotope Power Systems with 4-GPHS Bricks" . CRC CRC Thermoelectrics Handbook: Macro to Nano, CRC Press, 2005. El-Genk, M.S. and H. H. Saber, "Performance analysis of Cascaded Thermoelectric Converters for Advanced Radioisotope Power Systems" . J. Energy Conversion and Management, 46, 1083-1105, 2005. El-Genk, M. S. and H. H. Saber, "Performance and Mass Estimates of CTM- ARPSs with 4-GPHS Bricks" . CRC Handbook of Thermoelectrics, CRC Press, 2005. Saber, H. H. and M. S. El-Genk, "Performance of a Skutterudite-based Segmented Unicouple with a Metallic Coating Near Hot Junction" . Proceedings of Space Technology and Applications International Forum (STAIF-05), AIP Conference Proceedings No. 746, 572-583, 2005. Saber, H. H. and M. S. El-Genk, "Performance Tests Results of a Skutterudite-Based Unicouple with a Metallic Coating" . Proceedings of Space Technology and Applications International Forum (STAIF-05), AIP Conference Proceedings No. 746, 584-592, 2005. El-Genk, M.S. and H. H. Saber, "Radioisotope Power Systems with Skutterudite-Based Thermoelectric Converters" . Proceedings of Space Technology and Applications International Forum (STAIF-05), AIP Conference Proceedings No. 746, 485-494, 2005. El-Genk, M. S., H. H. Saber, T. Caillat, and J. Sakamoto, "Test Results and Performance Comparisons of Coated and UN-Coated Skutterudite-Based Segmented Unicouples" . J. Energy Conversion and Management, 47, 174-200, 2005. El-Genk, M.S. and J.-M. Tournier, "AMTEC/TE Static Converters for High Energy Utilization, Small Nuclear Power Plants" . J. Energy Conversion and Management, 45(4), 511-535, 2004. El-Genk, M. S. and Jean-Michel Tournier, "An Analysis of Coated Particles Fuel Compact-General Purpose Heat Source (CPFC-GPHS)" . J. Progress in Nuclear Energy, 44(3), 215-236, 2004. El-Genk, M.S., and H.H. Saber, "Cascaded Thermoelectric Conversion-Advanced Radioisotope Power System (CTC-ARPSs)" . Proc. Space Technology and Applications International Forum (STAIF-2004), AIP No. 699, 230-241, 2004. El-Genk, M.S., and H.H. Saber, "Cascaded Thermoelectric Converters for Advanced Radioisotope Power Systems" . Proc. Space Technology and Applications International Forum (STAIF-2004), AIP No. 699, 529-540, 2004. El-Genk, M. S., H. H. Saber, and T. Caillat, "High Efficiency Thermoelectric Radioisotope Power Systems" . Final Report Number UNM-ISNPS-1-2004, 2004. El-Genk, M.S., H. H. Saber, J. Sakamoto, and T. Caillat, "Performance Tests of Coated and Uncoated Segmented Skutterudites / BiTe Thermoelectric Unicouples" . Proceedings of 23rd International Conference of Thermoelectrics (ICT-2004), 2004. El-Genk, M.S., H.H. Saber and T. Caillat, "Performance Tests of Skutterudites and Segmented Thermoelectric Converters" . Proc. Space Technology and Applications International Forum (STAIF-2004), AIP No. 699, 541-552, 2004. Tournier, J.-M. and M.S. El-Genk, "Design Optimization of High Power, Liquid Anode AMTEC" . Proc. Space Technology and Applications International Forum (STAIF-2003), AIP No. 654, 740-750, 2003. El-Genk, M. S., H. H. Saber, and T. Caillat, "Efficient, Segmented Thermoelectric for Space Power Applications" . J. Energy Conversion and Management, 44(11), 1755-1772, 2003. El-Genk, M.S., "Energy Conversion Options for Advanced Radioisotope Power Systems" . Proc. Space Technology and Applications International Forum (STAIF-2003), AIP No. 654, 368-375, 2003. El-Genk, M. S. and H. H. Saber, "High Efficiency. Segmented Thermoelectric for Operation between 973 K and 300 K" . J. Energy Conversion and Management, 44(7), 1069-1088, 2003. El-Genk, M, H. Saber, J. Sakamoto, and T. Caillat, "Life Tests of Skutterudite Thermoelectric Unicouple (MAR-03)" . Proceedings of 22ndInternational Conference of Thermoelectrics (ICT-2003), IEEE Proceedings ICT, 417-420, 2003. Tournier, J.-M., and M.S. El-Genk, "Capillary Limit of Evaporator Wick in Alkali Metal Thermal-to-Electric Converters" . J. Thermophysics and Heat Transfer, 16, 141-153, 2002. El-Genk, M.S., "Energy Conversion Technologies for Advanced Radioisotope and Nuclear Reactor Power Systems for Future Exploration" . 2002 Proc. 21st Int. Conf. on Thermoelectrics (ICT), 375-380, 2002. El-Genk, M.S., and J.-M. Tournier, "High Energy Utilization, Co-Generation Nuclear Power Plants with Static Energy Conversion" . Proc. International Congress on Advanced Nuclear Power Plants, 2002. Saber, H. H. and M. S. El-Genk, "Optimization of Segmented Thermoelectric for Maximizing Conversion Efficiency and Electric Power Density" . 2002 Proc. 21st Int. Conf. on Thermoelectrics (ICT), 404-407, 2002. El-Genk, M. S. and H. H. Saber, "Predictions of Segmented Thermoelectric Unicouples Performance at Hot Temperatures < 873 K and Cold Temperature of 298 K" . Twenty-First International Conference on Thermoelectrics (ICT), IEEE, 408-411, 2002. King, J.C. and M.S. El-Genk, "A High Power, Coated Particle Fuel Compact Radioisotope Heat Unit" . Proc. Space Technology and Applications International Forum (STAIF-2001), AIP No.552, 774-783, 2001. Surampudi , R., R. Carpenter, M. El-Genk, L. Herrera, L. Mason, J. Mondt, R. Nesmith, D. Rapp, and R. Wiely, "Advanced Radioisotope Power Systems Team Report: 2001 Technology Assessment and Recommended Roadmap for Potential NASA Deep Space Missions Beyond 2011" . Jet Propulsion Laboratory Report No. JPL D-20757, 2001. El-Genk, M.S. and J.-M. Tournier, "Analysis of a Vapor Anode, Multi-tube, Potassium Refractory AMTEC Converter for Space Applications" . Proc. Space Technology and Applications International Forum (STAIF-2001), AIP No.552, 1066-1075, 2001. El-Genk, M.S. and J.-M. Tournier, "Performance Analysis of Coated Plutonia Particle Fuel Compact for Radioisotope Heater Units" . J. Nuclear Engineering and Design, 208, 29-50, 2001. Huang, L. and M.S. El-Genk, "Thermal Conductivity Measurements of Alumina Powders and Molded Min-K in Vacuum" . Int. J. Energy Conversion and Management, 42(3), 599-612, 2001. King, J.C. and M.S. El-Genk, "Analyses of Nb-1Zr/C-103, Vapor Anode, Multi-Tube AMTEC Cells" . Proc. Space Technology and Applications International Forum (STAIF-2000), AIP No.504(2), 1383-1390, 2000. El-Genk, M.S., J.-M. Tournier, J.A. Sholtis, Jr., and R.J. Lipinski, "Coated Particle Fuel for Radioisotope Power Systems and Heater Units: Status and Future Research Needs" . Proc. Space Technology and Applications International Forum (STAIF-2000), AIP No.504(2), 1466-1475, 2000. Tournier, J.-M. and M.S. El-Genk, "Conical Evaporator and Liquid Return Wick Model for Vapor Anode, Multi-Tube AMTEC Cells" . Proc. Space Technology and Applications International Forum (STAIF-00), AIP No.504(2), 1361-1370, 2000. El-Genk, M.S. and J.-M. Tournier, "Design Optimization and Integration of Nickel/Haynes-25 AMTEC Cells into Radioisotope Power Systems" . J. Energy Conversion and Management, 41(6), 1703-1728, 2000. El-Genk, M.S. and J.-M. Tournier, "Estimates of Helium Gas Release in 238PuO2 Fuel Particles for Radioisotope Heat Sources and Heater Units" . J. Nuclear Materials, 280(1), 17-Jan, 2000. El-Genk, M.S. and J.-M. Tournier, "Helium Release from 238PuO2 Fuel Particles" . Proc. Space Technology and Applications International Forum (STAIF-00), AIP No.504(2), 1437-1447, 2000. Tournier, J.-M. and M.S. El-Genk, "Incipient Dryout in the Evaporator of Vapor Anode, Multi-Tube Alkali-Metal Thermal-to-Electric Conversion Cells" . Proc. 35th International Energy Conversion Engineering Conference, 2, 930-939, 2000. Tournier, J.-M. and M.S. El-Genk, "Performance Analysis of Coated 238PuO2 Fuel Particles Compact for Radioisotope Heater Units" . Proc. Space Technology and Applications International Forum (STAIF-00), AIP No.504(2), 1458-1465, 2000. King, J.C. and M.S. El-Genk, "Structural Analyses of a PX-Type, Nb-1ZR/C-103, Vapor-Anode AMTEC Cell" . Proc. 35th Intersociety Energy Conversion Engineering Conference, 2, 940-949, 2000. Tournier, J.-M. and M.S. El-Genk, "An Electric Model of Vapor Anode, Multi-Tube Alkali-Metal Thermal-to-Electric Converter" . J. Applied Electrochemistry, 29(11), 1263-1275, 1999. Tournier, J.-M. and M.S. El-Genk, "Analysis of Test Results of a Ground Demonstration of a Pluto/Express Power Generator" . J. Energy Conversion and Management, 40, 1113-1128, 1999. Sholtis, Jr., J.A., R.J. Lipinski, and M.S. El-Genk, "Coated Particle Fuel for Radioisotope Power Systems (RPSs) and Radioisotope Heater Units (RHUs)" . Proc. Space Technology and Applications International Forum (STAIF-99), AIP No.458(2), 1398-1384, 1999. Tournier, J.-M. and M.S. El-Genk, "Performance Analysis of Pluto/Express, Multitube AMTEC Cells" . J. Energy Conversion and Management, 40, 139-173, 1999. Tournier, J.-M. and M.S. El-Genk, "Radiation Heat Transfer in Multi-Tube, Alkali-Metal Thermal-to-Electric Converter" . J. Heat Transfer, 121, 239-245, 1999. Tournier, J.-M. and M.S. El-Genk, "Sodium Vapor Pressure Losses in a Multitube AMTEC Converter" . J. Thermophysics and Heat Transfer, 13, 117-125, 1999. El-Genk, M. and J.-M. Tournier, "Study of a Coated-Particle Fuel form for Advanced Radioisotope heat Sources I: Fabrication Techniques and Helium Gas Release" . Final Report UNM ISNPS-5-1999 Part i, 1999. El-Genk, M. and J.-M. Tournier, "Study of a Coated-Particle Fuel form for Advanced Radioisotope heat Sources II: Coated-Particle Fuel Design Model and Potential of Advanced Radioisotope Heat Sources" . Final Report UNM ISNPS-5-1999 Part i, 1999. El-Genk, M.S., J.-M. Tournier, R. James, and C. Mayberry, "Super-Alloy, AMTEC Cells for the Pluto/Express Mission" . Proc. Space Technology and Applications International Forum (STAIF-99), AIP No.458(2), 1293-1300, 1999. Tournier, J.-M. and M.S. El-Gen, "AMTEC Performance and Evaluation Analysis Model (APEAM): Comparison with Test Results of PX-4C, PX-5A, and PX-3A Cells" . Proc. Space Technology and Applications International Forum (STAIF-98), 1998. Tournier, J.-M. and M.S. El-Genk, "An Analysis of AMTEC, Multi-Cell Ground-Demo for the Pluto/Express Mission" . Proc. 33rd Intersociety Energy Conversion Engineering Conference, 1998. El-Genk, M.S. and J.-M. Tournier, "An Analysis of Radioisotope Power Systems using Improved AMTEC Cells for the Pluto/ Express Mission" . Proc. 33rd Intersociety Energy Conversion Engineering Conference, 1998. Tournier, J.-M. and M.S. El-Genk, "An Electrical Model of Vapor-Anode, Multitube AMTEC Cell" . Proc. 33rd Intersociety Engineering Conference on Energy Conversion, 1998. El-Genk, M.S., L. Huang, and J.-M. Tournier, "Development and Performance Analyses of a Multi-Cell, AMTEC Space Power System" . Proc. 33rd Intersociety Energy Conversion Engineering Conference, 1998. Huang, L. and M. S. El-Genk, "Experimental Uncertainties in AMTEC Vacuum Tests" . Proc. Space Technology and Applications International Forum (STAIF-98), AIP Conference Proceedings No.420, 1471-1478, 1998. Tournier, J.-M. and M.S. El-Genk, "Heat Transfer in the Enclosure of a Multitube Alkali-Metal Thermal-to-Electric Converter Cell" . Proc. 7th AIAA/ASME Joint Thermophysics and Heat Transfer Conference, HTD-357(4), 17-24, 1998. El-Genk, M.S. and J.-M. Tournier, "Optimization of Liquid-Return Artery in a Vapor-Anode, Multitube AMTEC" . Proc. Space Technology and Applications International Forum (STAIF-98), AIP No.420(3), 1586-1594, 1998. El-Genk, M.S. and J.-M. Tournier, "Parametric Analyses of Vapor-Anode, Multitube AMTEC Cells for Pluto/Express Mission" . Proc. Space Technology and Applications International Forum (STAIF-98), AIP No.420(3), 1461-1470, 1998. Tournier, J.-M. and M.S. El-Genk, "Radiation/Conduction Model for Multitube AMTEC Cells" . Proc. Space Technology and Applications International Forum (STAIF-98), AIP No.420(3), 1552-1564, 1998. El-Genk, M.S. and J.-M. Tournier, "Recent Advances in Vapor-Anode, Multi-Tube, Alkali Metal Thermal-to-Electric Conversion Cells for Space Power" . Proc. 5th European Space Power Conference, 257-264, 1998. Tournier, J.-M. and M.S. El-Genk, "Sodium Vapor Flow Regimes and Pressure Losses on Cathode Side of Multitube AMTEC Cell" . Proc. Space Technology and Applications International Forum (STAIF-98), AIP No.420(3), 1595-1606, 1998. Huang, L., M.S. El-Genk, and M. J. Schuller, "Measurements of Thermal Conductivities of Alumina Powders and Min-K in Vacuum" . Proc. 32nd Intersociety Energy Conversion Engineering Conference, 2, 1190-1195, 1997. Tournier, J.-M., M.S. El-Genk, and M. Schuller, "Performance Analysis of a Multitube Vapor-Anode AMTEC Cell" . Proc. 32nd Intersociety Energy Conversion Engineering Conference, 2, 1172-1179, 1997. Merrill, J., M. Schuller, P. Hausgen, and R. Sievers, "Vacuum Testing of High Efficiency Multi-Base Tube AMTEC Cell" . Proc. 32nd Intersociety Energy Conversion Engineering Conference, 2, 1184-1189, 1997.