Ryan Milcarek

[2026]

1. Guthrie T. Demers, Ryan J. Milcarek*, “Micro-scale Thermal Partial Oxidation Reformer and Integrated Solid Oxide Fuel Cell Operating with Jet Fuel,” Journal of Power Sources, Vol. 680, pp. 240198 (2026), doi: 10.1016/j.jpowsour.2026.240198.
2. Guthrie T. Demers, Ryan J. Milcarek*, “Solid oxide fuel cell power generation from thermal partial oxidation of methanol reformate,” Energy Conversion and Management, Vol. 354, pp. 121281 (2026), doi: 10.1016/j.enconman.2026.121281.
3. Joseph Elio, Ryan J. Milcarek*, “Multi-objective optimal energy storage dispatch control strategies for cost and CO2 emissions savings in 933 commercial and industrial facilities leveraging utility demand response programs,” Journal of Energy Storage, Vol. 141, Part D, pp. 119499 (2026), doi: 10.1016/j.est.2025.119499.
4. Cody Jenkins, Ryan J. Milcarek*, “Solar photovoltaic system optimization and key factor identification using real commercial and industrial electrical demand profiles,” Applied Energy, Vol. 402, Part B, pp. 127040 (2026), doi: 10.1016/j.apenergy.2025.127040. 

[2025]

5. Haider Nadeem, Ryan J. Milcarek*, Clark Miller, Ellen B. Stechel, “Impact of Panel Tilt Angle and Tracking Configuration on Solar PV and Energy Storage Capacity for a Carbon-Neutral Grid in Arizona,” Energies, Vol. 18, pp. 4974 (2025), doi: 10.3390/en18184974. (Invited, Feature Paper designation)
6. Cody Jenkins, Jiashen Tian, Ryan J. Milcarek*, “A Case Study of Renewable Natural Gas Techno-economics and Emissions at a Wastewater Treatment Plant”, Environments, Vol. 12, Issue 4, pp. 106 (2025), doi: 10.3390/environments12040106. (Invited)
7. Ryan J. Milcarek, Samantha R. Brunhaver*, Thien Ta, Cody D. Jenkins, Gary Lichtenstein, Karl A. Smith, “The Impact of Peer-led Study Groups on Student Achievement in a Gateway Engineering Thermodynamics Course,” Advances in Engineering Education, Vol. 13, Issue 1, pp. 76-99 (2025), doi: 10.18260/3-1-1153-36073.  
8. Joseph Elio, Ryan J. Milcarek*, “Assessment of Optimal Energy Storage Dispatch Control Strategies for Cost Savings in 606 Commercial and Industrial Facilities Leveraging Utility Demand Response Programs,” Applied Energy, Vol. 384, pp. 125513 (2025), doi: 10.1016/j.apenergy.2025.125513.
9. Rhushikesh Ghotkar*, Alberto de la Calle, Ryan J. Milcarek, Ivan Ermanoski, James E. Miller, Roy Hogan Jr., Ellen B. Stechel, “Zigzag Flow Reactor for Weekly Thermochemical Energy Storage,” Journal of Energy Storage, Vol. 112, pp. 115528 (2025), doi: 10.1016/j.est.2025.115528.
10. Radhika Khosla, Angel Martinez Rodriguez, Ryan J. Milcarek*, Patrick E. Phelan, “A Comparison Between Industrial Energy Efficiency Measures in Guatemala and the United States,” Environments, Special Issue Environments: 10 Years of Science Together, Vol. 12, Issue 1, pp. 19 (2025), doi: 10.3390/environments12010019. (Invited)

[2024]

11. Abhishek Brahma, Brent B. Skabelund, Ryan J. Milcarek*, “Performance of a Solid Oxide Fuel Cell Fueled by the Exhaust Gases of a Diesel Engine Operating Fuel-rich,” Sustainable Energy Technologies and Assessments, Vol. 71, pp. 103991 (2024), doi: 10.1016/j.seta.2024.103991.
12. Mitchell H. Neal, Jon Harrison, Brent B. Skabelund, Ryan J. Milcarek*, “Insect Tracheal Systems as Inspiration for Carbon Dioxide Capture Systems,” Bioinspiration & Biomimetics, Vol 19, No. 5, pp. 056015 (2024), doi: 10.1088/1748-3190/ad665c.
13. Adrija Rukmini, Rhushikesh Ghotkar, Derall Riley, Jiashen Tian, Ryan J. Milcarek*, “Modeling and Analysis of Polarization Losses in Solid Oxide Fuel Cells with Siloxane Contamination”, Journal of The Electrochemical Society, Focus Issue on SOFC XVIII: Advances in Solid Oxide Fuel Cell and Electrolysis Cell Technology, Vol 171, No. 7, pp. 074508 (2024), doi: 10.1149/1945-7111/ad6214.
14. Cody D. Jenkins, Jiashen Tian, Yan Dou, Qiong Nian, Ryan J. Milcarek*, “Solid Oxide Fuel Cells with 3D Inkjet Printing Modified LSM-YSZ Interface”, ECS Journal of Solid State Science and Technology, Vol. 13, pp. 065003 (2024), doi: 10.1149/2162-8777/ad4fbf.
15. Cody D. Jenkins, Jiashen Tian, Ryan J. Milcarek*, “Short Term Silver Electrode Microstructure Changes Under Epoxidation Conditions for Solid Oxide Electrolysis Cells”, Journal of The Electrochemical Society, Focus Issue on SOFC XVIII: Advances in Solid Oxide Fuel Cell and Electrolysis Cell Technology, Vol 171, No. 4, pp. 044501 (2024) 10.1149/1945-7111/ad367d. 

[2023]

16. Brent B. Skabelund, Ellen B. Stechel, Ryan J. Milcarek*, “Thermodynamic Analysis of a Gas Turbine Utilizing Ternary CH4/H2/NH3 Fuel Blend”, Energy, Vol. 282, pp. 128818 (2023) 10.1016/j.energy.2023.128818.
17. Joseph Elio, Ryan J. Milcarek*, “Multi-Objective Electricity Cost and Indirect CO2 Emissions Minimization in Commercial and Industrial Buildings Utilizing Stand-Alone Battery Energy Storage Systems”, Journal of Cleaner Production, Vol. 417, pp. 137987 (2023), doi: 10.1016/j.jclepro.2023.137987.
18. Brent B. Skabelund, Cody D. Jenkins, Ellen B. Stechel, Ryan J. Milcarek*, “Thermodynamic and Emission Analysis of a Hydrogen/Methane Fueled Gas Turbine”, Energy Conversion and Management: X, Vol. 19, pp. 100394 (2023), doi: 10.1016/j.ecmx.2023.100394.
19. Joseph Elio, Ryan J. Milcarek*, “A Comparison of Optimal Peak Clipping and Load Shifting Energy Storage Dispatch Control Strategies for Event-Based Demand Response”, Energy Conversion and Management: X, Vol. 19, pp. 100392 (2023), doi: 10.1016/j.ecmx.2023.100392.

[2022]

20. Brent B. Skabelund, Ryan J. Milcarek*, “Review of Thermal Partial Oxidation Reforming with Integrated Solid Oxide Fuel Cell Power Generation”, Renewable and Sustainable Energy Reviews, Vol. 168, pp. 112852 (2022), doi: 10.1016/j.rser.2022.112852.
21. Joseph Elio, Ryan J. Milcarek*, “Techno-Economic Analysis and Case Study of Combined Heat and Power Systems in a Wastewater Treatment Plant,” Energy, Vol. 260, pp. 125106 (2022), doi: 10.1016/j.energy.2022.125106.
22. Jiashen Tian, Ryan J. Milcarek*, “Failure Analysis of Solid Oxide Fuel Cells Nickel-Yttria Stabilized Zirconia Anode under Siloxane Contamination”, Electrochimica Acta, Vol. 428, pp. 140922 (2022), doi: 10.1016/j.electacta.2022.140922.
23. Alexander R. Hartwell*, Cole A. Wilhelm, Thomas S. Welles, Ryan J. Milcarek, Jeongmin Ahn, “Effects of Synthesis Gas Concentration and Composition on Tubular Solid Oxide Fuel Cell Performance and Longevity”, Sustainability, Special Issue Advances in Direct Use of Hydrocarbons for Fuel Cell Applications, Vol. 14, Issue 13, pp. 7983 (2022), doi: 10.3390/su14137983.
24. Joseph Elio, Miguel Peinado-Guerrero, Rene Villalobos, Ryan J. Milcarek*, “An Energy Storage Dispatch Optimization for Demand-side Management in Industrial Facilities,” Journal of Energy Storage, Vol. 53, pp. 105063 (2022), doi: 10.1016/j.est.2022.105063.
25. Jiashen Tian, Ryan J. Milcarek*, “Investigating the Influence of Ni, ZrO2, and Y2O3 from SOFC Anodes on Siloxane Deposition”, ECS Journal of Solid State Science and Technology, Vol. 11, pp. 044005 (2022), doi: 10.1149/2162-8777/ac63e2.
26. Rhushikesh Ghotkar, Ryan J. Milcarek*, “Modeling of the Kinetic Factors in Flame-assisted Fuel Cells,” Sustainability, Special Issue Advances in Direct Use of Hydrocarbons for Fuel Cell Applications, Vol. 14, pp. 4121 (2022), doi: 10.3390/su14074121.
27. Brent B. Skabelund, Hisashi Nakamura, Takuya Tezuka, Kaoru Maruta, Jeongmin Ahn, Ryan J. Milcarek*, “Thermal Partial Oxidation of n-Butane in a Micro-flow Reactor and Solid Oxide Fuel Cell Stability Assessment,” Energy Conversion and Management, Vol. 254, pp. 115222 (2022), doi: 10.1016/j.enconman.2022.115222.
28. Lauren Rupiper, Brent B. Skabelund, Rhushikesh Ghotkar, Ryan J. Milcarek*, “Impact of Fuel Type on the Performance of a Solid Oxide Fuel Cell Integrated with a Gas Turbine,” Sustainable Energy Technologies and Assessments, Vol. 51, pp. 101959 (2022), doi: 10.1016/j.seta.2022.101959.

[2021]

29. Brent B. Skabelund, Joseph Elio, Ryan J. Milcarek*, “Techno-Economic Assessment of a Hybrid Gas Tank Hot Water Combined Heat and Power System,” Sustainability, Special Issue Advances in Direct Use of Hydrocarbons for Fuel Cell Applications, Vol. 13, Issue 23, pp. 13040 (2021), doi: 10.3390/su132313040.
30. Jiashen Tian, Ryan J. Milcarek*, “Degradation Comparison of Cyclic and Linear Siloxane Contamination on Solid Oxide Fuel Cells Ni-YSZ Anode,” Frontiers in Energy Research, Rising Stars Edition, Vol. 9, pp. 749771 (2021), doi: 10.3389/fenrg.2021.749771. (Invited)
31. Joseph Elio, Patrick Phelan, Rene Villalobos, Ryan J. Milcarek*, “A Review of Energy Storage Technologies for Demand-Side Management in Industrial Facilities,” Journal of Cleaner Production, Vol. 307, pp. 127322 (2021), doi: 10.1016/j.jclepro.2021.127322.
32. Jiashen Tian, Ryan J. Milcarek*, “Siloxane Deposition on the Ni-YSZ Solid Oxide Fuel Cell Anode Exposed to Bio-syngas,” Journal of The Electrochemical Society, Vol. 168, Issue 4, pp. 044503 (2021), doi: 10.1149/1945-7111/abf21a.
33. Ryan J. Milcarek*, Michael J. Garrett, Thomas S. Welles, Rhushikesh Ghotkar, Jeongmin Ahn, “Investigation of Rapid, Moderate Temperature Change Thermal Cycling of a micro-Tubular Flame-assisted Fuel Cell,” Journal of Electrochemical Energy Conversion and Storage, Vol. 18, Issue 4, pp. 041002 (2021), doi: 10.1115/1.4049923.
34. Ryan J. Milcarek*, Jeongmin Ahn, “Micro-tubular Solid Oxide Fuel Cell Polarization and Impedance Variation with Thin Porous Samarium-doped Ceria and Gadolinium-doped Ceria Buffer Layer Thickness,” Journal of Electrochemical Energy Conversion and Storage, Vol. 18, Issue 2, pp. 021004 (2021), doi:10.1115/1.4047742.

[2020]

35. Jiashen Tian, Ryan J. Milcarek*, “Investigating the Degradation Mechanism of the Solid Oxide Fuel Cell Ni-YSZ Anode Under Siloxane Contamination,” Journal of Power Sources, Vol. 480, pp. 229122 (2020), doi: 10.1016/j.jpowsour.2020.229122.
36. Brent B. Skabelund, Hisashi Nakamura, Takuya Tezuka, Kaoru Maruta, Jeongmin Ahn, Ryan J. Milcarek*, “Impact of Low Concentration Hydrocarbons in Natural Gas on Thermal Partial Oxidation in a Micro-flow Reactor for Solid Oxide Fuel Cell Applications,” Journal of Power Sources, Vol. 477, pp. 229007 (2020), doi: 10.1016/j.jpowsour.2020.229007.
37. Thien Ta, Gary Lichtenstein, Ryan J. Milcarek, “The Relationship between Team Dynamics and Innovation Effectiveness in an Engineering Thermal Science Course: An Entrepreneurship Mindset Simulation”, Journal of Higher Education Theory and Practice, Vol. 20, Issue 13, (2020), doi: 10.33423/jhetp.v20i13.3838. (Invited)
38. Derall Riley, Jiashen Tian, Gamze Gungor-Demirci, Patrick Phelan, Rene Villalobos, Ryan J. Milcarek*, “Techno-economic Assessment of CHP in Wastewater Treatment Plants,” Environments, Vol. 7, Issue 10, pp. 74 (2020), doi: 10.3390/environments7100074. (Invited, Editors Choice designation)
39. Rhushikesh Ghotkar, Ellen Stechel, Ivan Ermanoski, Ryan J. Milcarek*, “Hybrid Fuel Cell – Supercritical CO2 Brayton Cycle for CO2 Sequestration Ready Combined Heat and Power,” Energies, Vol. 13, pp. 5043 (2020), doi:10.3390/en13195043, 2019 Impact Factor 2.702. (Invited, Feature Paper designation)
40. Rhushikesh Ghotkar, Ryan J. Milcarek*, “Investigation of Flame-assisted Fuel Cells Integrated with an Auxiliary Power Unit Gas Turbine,” Energy, Vol. 204, pp. 117979 (2020), doi:10.1016/j.energy.2020.117979.
41. Ryan J. Milcarek*, Vincent P. DeBiase, Jeongmin Ahn, “Investigation of Startup, Performance and Cycling of a Residential Furnace Integrated with micro-Tubular Flame-assisted Fuel Cells for micro-Combined Heat and Power,” Energy, Vol. 196, pp. 117148 (2020), doi:10.1016/j.energy.2020.117148.
42. Ryan J. Milcarek*, Hisashi Nakamura, Takuya Tezuka, Kaoru Maruta, Jeongmin Ahn, “Investigation of Microcombustion Reforming of Ethane/air and micro-Tubular Solid Oxide Fuel Cells,” Journal of Power Sources, Vol. 450, pp. 227606 (2020), doi:10.1016/j.jpowsour.2019.227606.

[2019]

43. Ryan J. Milcarek*, Hisashi Nakamura, Takuya Tezuka, Kaoru Maruta, Jeongmin Ahn, “Microcombustion for micro-tubular flame-assisted fuel cell power and heat cogeneration,” Journal of Power Sources, Vol. 413, pp. 191-197 (2019), doi:10.1016/j.jpowsour.2018.12.043.
44. Ryan J. Milcarek*, Jeongmin Ahn, “Micro-tubular flame-assisted fuel cells running methane, propane and butane: On soot, efficiency and power density,” Energy, Vol. 169, pp. 776-782 (2019), doi:10.1016/j.energy.2018.12.098.
45. Ryan Falkenstein-Smith*, Jeongmin Ahn, Ryan J. Milcarek, “Reinvigorating Classroom Engagement and Performance in an Advanced Energy Systems Course,” International Journal of Engineering Education, Vol. 35, Issue 1(A), pp. 1-10 (2019). 

[2018]

46. Ryan J. Milcarek*, Michael J. Garrett, Thomas S. Welles, Jeongmin Ahn, “Performance Investigation of a micro-Tubular Flame-assisted Fuel Cell Stack with 3,000 Rapid Thermal Cycles,” Journal of Power Sources, Vol. 394, pp. 86-93 (2018), doi:10.1016/j.jpowsour.2018.05.060.
47. Ryan J. Milcarek*, Jeongmin Ahn, “Rich-burn, Flame-assisted fuel cell, Quick-mix, Lean-burn (RFQL) Combustor and Power Generation,” Journal of Power Sources, Vol. 381, pp. 18-25 (2018), doi:10.1016/j.jpowsour.2018.02.006.

[2017]

48. Ryan J. Milcarek*, Michael J. Garrett, Jeongmin Ahn, “Micro-tubular Flame-assisted Fuel Cells”, Journal of Fluid Science and Technology, Vol. 12, Issue 3, pp. JFST0021 (2017), doi:10.1299/jfst.2017jfst0021.
49. Ryan J. Milcarek*, Jeongmin Ahn, Jianshun Zhang, “Review and Analysis of Fuel Cell Based, Micro Cogeneration for Residential Applications: Current State and Future Opportunities”, Journal of Science and Technology for the Built Environment, Vol. 23, Issue 8, pp. 1224-1243 (2017), doi:10.1080/23744731.2017.1296301.

[2016]

50. Wei Liu*, Ryan J. Milcarek, Ryan L. Falkenstein-Smith, Jeongmin Ahn, “Interfacial impedance studies of multilayer structured electrolyte fabricated with solvent-casted PEO10- LiN(CF3SO2)2  and ceramic Li1.3Al0.3Ti1.7(PO4)3 and its application in all-solid-state lithium ion batteries”, Journal of Electrochemical Energy Conversion and Storage, Vol. 13, Issue 2, pp. 021008 (2016), doi:10.1115/1.4035294.
51. Ryan J. Milcarek*, Michael J. Garrett, Jeongmin Ahn, “Micro-tubular Flame-assisted Fuel Cell Stacks”,  International Journal of Hydrogen Energy, Vol. 41, Issue 46, pp. 21489-21496  (2016) doi:10.1016/j.ijhydene.2016.09.005.
52. Ryan J. Milcarek*, Kang Wang, Michael J. Garrett, Jeongmin Ahn, “Micro-tubular Flame-assisted Fuel Cells Running Methane”, International Journal of Hydrogen Energy, Vol. 41, Issue 45, pp. 20670-20679 (2016), doi:10.1016/j.ijhydene.2016.08.155.
53. Ryan J. Milcarek*, Michael J. Garrett, Amrish Baskaran, Jeongmin Ahn, “Combustion Characterization and Model Fuel Development for Micro-tubular Flame-assisted Fuel Cells”, Journal of Visualized Experiments, Vol. 116, e54638 (2016), doi:10.3791/54638.
54. Ryan J. Milcarek*, Kang Wang, Ryan L. Falkenstein-Smith and Jeongmin Ahn, “Performance Variation with SDC Buffer Layer Thickness”, International Journal of Hydrogen Energy, Vol. 41, Issue 22, pp. 9500-9506 (2016),  doi:10.1016/j.ijhydene.2016.04.113.
55. Ryan J. Milcarek*, Kang Wang, Michael Garrett, and Jeongmin Ahn, “Performance Investigation of Dual Layer YSZ-SDC Electrolyte for Intermediate Temperature Solid Oxide Fuel Cells”, Journal of Electrochemical Energy Conversion and Storage, Vol. 13, Issue 1, pp. 011002 (2016), doi:10.1115/1.4032708.
56. Ryan J. Milcarek*, Kang Wang, Ryan L. Falkenstein-Smith, and Jeongmin Ahn, “Micro-tubular Flame-assisted Fuel Cells for micro-Combined Heat and Power Systems”, Journal of Power Sources, Vol. 306, pp. 148-151 (2016), doi:10.1016/j.jpowsour.2015.12.018. 

[2015]

57. Kang Wang*, Ryan J. Milcarek, Pingying Zeng, and Jeongmin Ahn, “Flame-Assisted Fuel Cells Running Methane”, International Journal of Hydrogen Energy, Vol. 40, Issue 13, pp. 4659-4665 (2015), doi:10.1016/j.ijhydene.2015.01.128.