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Daly, S., Tran, K., Niemeyer, K.E., Cannella, W.J., Hagen, C.L. Predicting Fuel Low-Temperature Combustion Performance Using Fourier-Transform Infrared Absorption Spectra of Neat Hydrocarbons, FUEL, Volume 242, 2019, 343-344, https://doi.org/10.1016/j.fuel.2019.01.054.
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Taie, Z., Hagen, C. L., Experimental thermodynamic first and second law analysis of a variable output 1–4.5 kWe, ICE-driven, natural-gas fueled micro-CHP generator. Energy Conversion and Management, 2019, 180, 292–301. https://doi.org/10.1016/j.enconman.2018.10.075
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Daly, S., Hagen, C.L., Cenker, E., Pickett, L., Skeen, S., The Effects of Injector Temperature on Spray Characteristics in Heavy-Duty Diesel Sprays, SAE International Journal of Engines 11(6):879– 891, 2018, doi:10.4271/2018-01-0284.
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Lavrich, Z., Wagner, D.R., Taie, T., Hagen, C. L., Design considerations for small scale rotating fluidized beds in static geometry with screens for fine particles, Chemical Engineering Research and Design, Volume 137, 2018, Pages 89-100, ISSN 0263-8762, https://doi.org/10.1016/j.cherd.2018.06.044.
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Daly, S.R., Niemeyer, K.E., Cannella, W.J., Hagen, C.L., FACE gasoline surrogates formulated by an enhanced multivariate optimization framework, Energy and Fuels, 2018 32 (7), 7916-7932, https://doi.org/10.1021/acs.energyfuels.8b01313
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Taie, Z., West, B., Szybist, J., Edwards, D., Thomas, J., Huff, S., Vishwanathan, G., Hagen, C.L., Detailed Thermodynamic Investigation of an ICE-Driven, Natural Gas-Fueled, 1kwe Micro-CHP Generator, Energy Conversion and Management. Volume 166, 2018, Pages 663-673, ISSN 0196- 8904, https://doi.org/10.1016/j.enconman.2018.04.077.
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Ganti, H., Menon, S.K., Niemeyer, K.,E., Hagen, C.L., Effects of Oil and Water Contamination on the Operation of a Natural Gas Internal Combustion Engine, Journal of Natural Gas Science and Engineering, Volume 41, May 2017, Pages 30-39, ISSN 1875-5100, http://doi.org/10.1016/j.jngse.2017.02.038.
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Deng, Y., Menon, S.K., Lavrich, Z., Wang, H., Hagen, C.L., Design, Simulation, and Testing of a Novel Micro-Channel Heat Exchanger for Natural Gas Cooling in Automotive Applications, Applied Thermal Engineering, Volume 110, January 2017, Pages 327–334, doi: 10.1016/j.applthermaleng.2016.08.193.
- Daly, S., Niemeyer, K.E., Cannella, W.J., Hagen, C.L., Predicting Fuel Research Octane Number using Fourier-Transform Infrared Absorption Spectroscopy of Neat Hydrocarbons, accepted for publication by Fuel. Volume 183, 1 November 2016, Pages 359–365, doi:10.1016/j.fuel.2016.06.097
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Daly, S.R., Olson, N. Hagen, C.L., Fourier-Transform Infrared Absorption Spectroscopy in Binary Hydrocarbon-Alcohol Single Droplet Evaporation, Journal of Spectroscopy, vol. 2016, Article ID 3619634, 7 pages, 2016. doi:10.1155/2016/3619634.
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Elgin, R.C., Hagen, C.L., A Semi-Empirical CNG Tank Filling Model Created for a Novel Self- Refueling Vehicle System, Proceedings of the Institution of Mechanical Engineers, Part D: Journal of Automobile Engineering, published online, January 2016, doi: 10.1177/0954407015623409.
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Malakoutirad, M., Bradley, T.H., Hagen, C.L., Design Considerations for an Engine-Integral Reciprocating Natural Gas Compressor, Applied Energy, Volume 156, 2015, pp. 129-137, ISSN 0306-2619.
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Elgin, R.C., Hagen, C.L., Development and Operation of a Self-Refueling Compressed Natural Gas Vehicle, Applied Energy, Volume 155, 2015, pp. 242-252, ISSN 0306-2619.
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Niemeyer, K.E., Daly, S.R., Cannella, W.J., Hagen, C.L., Investigation of the LTC Fuel Performance Index for Oxygenated Reference Fuel Blends, Fuel, Volume 155, 2015, pp. 14-24.
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Niemeyer, K.E., Daly, S R., Cannella, W.J., Hagen, C.L. A Novel Fuel Performance Index for LTC Engines Based on Operating Envelopes in Light-Duty Driving Cycle Simulations, ASME Journal of Engineering for Gas Turbines and Power, 2015, Volume 137, Issue 10 p.101601.
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Hagen, C.L., Lee, B.C., Franka, I.S., Rath, J.L., VandenBoer, T.C., Roberts, J.M., Brown, S.S., and Yalin, A.P., Cavity Ring-Down Spectroscopy Sensor for Detection of Hydrogen Chloride, Atmospheric Measurement Techniques, Volume 7, 2014, pp. 345–357.
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Kranendonk, L.A., Caswell, A.W., Hagen, C.L., Neuroth, C.T., Shouse, D.T., Gord, J.R., Sanders, S.T., Temperature Measurements in a Gas-Turbine-Combustor Sector Rig Using Swept-Wavelength Absorption Spectroscopy, Journal of Propulsion and Power 2009, Volume 25, Issue 4, pp. 859-863.
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Hagen, C.L., Sanders, S.T., Investigation of Multi-Species (H2O2 and H2O) Sensing and Thermometry in an HCCI Engine by Wavelength-Agile Absorption Spectroscopy, Measurement Science & Technology 2007, Volume 18, Issue 7, 1992-1998.
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Hagen, C.L., Sanders, S.T., Toward Hyperspectral Sensing in Practical Devices: Measurements of Fuel, H2O and Gas Temperature in a Metal Homogeneous Charge Compression Ignition Engine, Journal of Near Infrared Spectroscopy, Volume 15, Issue 4, 2007, pp. 217-225.
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Hagen, C.L., Schmidt, J.R., Sanders, S.T., Spectroscopic Sensing via Dual-Clad Optical Fiber, IEEE Sensors Journal, Volume 6, Issue 5, 2006, pp. 1227-1231.
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Hagen, C.L., Walewski, J.W., Sanders, S.T., Generation of a Continuum Extending to the Midinfrared by Pumping ZBLAN Fiber with an Ultrafast 1550-nm Source, IEEE Photonics Technology Letters, Volume28, Issues 1-4, 2006, pp. 91-93.
- Walewski, J.W., Filipa, J.A., Hagen, C.L., Sanders, S.T., Standard Single-Mode Fibers as Convenient Means for the Generation of Ultrafast High-Pulse-Energy Super-Continua, Applied Physics B- Lasers and Optics Volume 83, Issue 1, 2006, pp. 75-79.