| A two-dimensional computational model of a PEMFC with liquid water transport NP Siegel, MW Ellis, DJ Nelson, MR Von Spakovsky Journal of Power Sources 128 (2), 173-184, 2004 | 418 | 2004 |
| Solar thermochemical water-splitting ferrite-cycle heat engines RB Diver, JE Miller, MD Allendorf, NP Siegel, RE Hogan | 404 | 2008 |
| Single domain PEMFC model based on agglomerate catalyst geometry NP Siegel, MW Ellis, DJ Nelson, MR Von Spakovsky Journal of Power Sources 115 (1), 81-89, 2003 | 351 | 2003 |
| In situ high-resolution neutron radiography of cross-sectional liquid water profiles in proton exchange membrane fuel cells MA Hickner, NP Siegel, KS Chen, DS Hussey, DL Jacobson, M Arif Journal of The Electrochemical Society 155 (4), B427, 2008 | 328 | 2008 |
| Metal oxide composites and structures for ultra-high temperature solar thermochemical cycles JE Miller, MD Allendorf, RB Diver, LR Evans, NP Siegel, JN Stuecker Journal of Materials Science 43, 4714-4728, 2008 | 309 | 2008 |
| A new reactor concept for efficient solar-thermochemical fuel production I Ermanoski, NP Siegel, EB Stechel Journal of Solar Energy Engineering 135 (3), 031002, 2013 | 293 | 2013 |
| Development and evaluation of a prototype solid particle receiver: on-sun testing and model validation NP Siegel, CK Ho, SS Khalsa, GJ Kolb | 280 | 2010 |
| Real-time imaging of liquid water in an operating proton exchange membrane fuel cell MA Hickner, NP Siegel, KS Chen, DN McBrayer, DS Hussey, ... Journal of the Electrochemical Society 153 (5), A902, 2006 | 255 | 2006 |
| Two-step water splitting using mixed-metal ferrites: thermodynamic analysis and characterization of synthesized materials MD Allendorf, RB Diver, NP Siegel, JE Miller Energy & Fuels 22 (6), 4115-4124, 2008 | 219 | 2008 |
| Factors affecting the efficiency of solar driven metal oxide thermochemical cycles NP Siegel, JE Miller, I Ermanoski, RB Diver, EB Stechel Industrial & Engineering Chemistry Research 52 (9), 3276-3286, 2013 | 211 | 2013 |
| Molten nitrate salt development for thermal energy storage in parabolic trough solar power systems RW Bradshaw, NP Siegel Energy Sustainability 43208, 631-637, 2008 | 178 | 2008 |
| Technology advancements for next generation falling particle receivers C Ho, J Christian, D Gill, A Moya, S Jeter, S Abdel-Khalik, D Sadowski, ... Energy Procedia 49, 398-407, 2014 | 174 | 2014 |
| Computational fluid dynamics modeling of gas-particle flow within a solid-particle solar receiver H Chen, Y Chen, H Hsieh, N and Siegel Journal of Solar Energy Engineering 129 (2), 160-170, 2007 | 142 | 2007 |
| Physical properties of solid particle thermal energy storage media for concentrating solar power applications N Siegel, M Gross, C Ho, T Phan, J Yuan Energy Procedia 49, 1015-1023, 2014 | 141 | 2014 |
| The development of direct absorption and storage media for falling particle solar central receivers NP Siegel, MD Gross, R Coury Journal of Solar Energy Engineering 137 (4), 041003, 2015 | 135 | 2015 |
| Understanding liquid water distribution and removal phenomena in an operating PEMFC via neutron radiography MA Hickner, NP Siegel, KS Chen, DS Hussey, DL Jacobson, M Arif Journal of The Electrochemical Society 155 (3), B294, 2008 | 127 | 2008 |
| Central-station solar hydrogen power plant GJ Kolb, RB Diver, N Siegel Journal of Solar Energy Engineering 129 (2), 179-183, 2007 | 117 | 2007 |
| A study of solid particle flow characterization in solar particle receiver K Kim, N Siegel, G Kolb, V Rangaswamy, SF Moujaes Solar Energy 83 (10), 1784-1793, 2009 | 115 | 2009 |
| On the influence of temperature on PEM fuel cell operation M Coppo, NP Siegel, MR Von Spakovsky Journal of Power Sources 159 (1), 560-569, 2006 | 115 | 2006 |
| On-sun testing of an advanced falling particle receiver system CK Ho, JM Christian, J Yellowhair, N Siegel, S Jeter, M Golob, ... AIP Conference Proceedings 1734 (1), 2016 | 111 | 2016 |
