TY - GEN A1 - Ngũgĩ, John Mbũrũ A1 - Richter, Sandra A1 - Braun-Unkhoff, Marina A1 - Naumann, Clemens A1 - Riedel, Uwe T1 - A study on fundamental combustion properties of trimethyl orthoformate: experiments and modeling T2 - Journal of Engineering for Gas Turbines and Power N2 - Trimethyl orthoformate (TMOF: HC(OCH3)3) has recently been examined as a viable biofuel. TMOF is a branched isomer of oxymethylene ether-2 (OME2) that, due to its high oxygen content and lack of direct carbon-carbon bonds, considerably reduces the formation of soot particles. To meet the challenges of a more flexible and sustainable power generation, a detailed understanding of its combustion properties is essential for its safe and efficient utilization, neat or in blends. In this work, two fundamental combustion properties of TMOF were studied: (i) Auto-ignition of TMOF/synthetic air mixtures (φ = 1.0; diluted 1:5 with N2) using the shock tube method at pressures of 1, 4, and 16 bar, and (ii) Laminar burning velocities of TMOF/air mixtures using the cone angle method at ambient and elevated pressures of 3 and 6 bar. Furthermore, the impact of TMOF addition to a gasoline surrogate (PRF90) on ignition delay times was studied using the shock tube method at φ = 1.0, 1:5 dilution with N2, T = 900–2000 Y1 - 2022 U6 - https://doi.org/10.1115/1.4055828 SN - 0742-4795 VL - 145 IS - 2 PB - ASME International ER - TY - GEN A1 - Richter, Sandra A1 - Kukkadapu, Goutham A1 - Westbrook, Charles K. A1 - Braun-Unkhoff, Marina A1 - Naumann, Clemens A1 - Köhler, Markus A1 - Riedel, Uwe T1 - A combined experimental and modeling study of combustion properties of an isoparaffinic alcohol-to-jet fuel T2 - Combustion and Flame Y1 - 2022 U6 - https://doi.org/10.1016/j.combustflame.2022.111994 SN - 0010-2180 VL - 240 PB - Elsevier BV ER - TY - GEN A1 - Ngũgĩ, John Mbũrũ A1 - Richter, Sandra A1 - Braun-Unkhoff, Marina A1 - Naumann, Clemens A1 - Riedel, Uwe T1 - A study on fundamental combustion properties of oxymethylene ether-1, the primary reference fuel 90, and their blend: experiments and modeling T2 - Combustion and Flame Y1 - 2022 U6 - https://doi.org/10.1016/j.combustflame.2022.111996 SN - 0010-2180 VL - 243 PB - Elsevier BV ER - TY - GEN A1 - Ngũgĩ, John Mbũrũ A1 - Richter, Sandra A1 - Braun-Unkhoff, Marina A1 - Naumann, Clemens A1 - Riedel, Uwe T1 - A study on fundamental combustion properties of trimethyl orthoformate: experiments and modeling T2 - Volume 2: Coal, Biomass, Hydrogen, and Alternative Fuels; Controls, Diagnostics, and Instrumentation; Steam Turbine N2 - Trimethyl orthoformate (TMOF: HC(OCH3)3) has recently been examined as a viable biofuel. TMOF is a branched isomer of oxymethylene ether-2 (OME2) that, due to its high oxygen content and lack of direct carbon-carbon bonds, considerably reduces the formation of soot particles. To meet the challenges of a more flexible and sustainable power generation, a detailed understanding of its combustion properties is essential for its safe and efficient utilization, neat or in blends. In this work, two fundamental combustion properties of TMOF were studied: (i) Auto-ignition of TMOF / synthetic air mixtures (φ = 1.0; diluted 1:5 with N2) using the shock tube method at pressures of 1, 4, and 16 bar, and (ii) Laminar burning velocities of TMOF / air mixtures using the cone angle method at ambient and elevated pressures of 3 and 6 bar. Furthermore, the impact of TMOF addition to a gasoline surrogate (PRF90) on ignition delay times was studied using the shock tube method at φ = 1.0, 1:5 dilution with N2, T = 900–2 Y1 - 2022 SN - 978-0-7918-8598-7 U6 - https://doi.org/10.1115/GT2022-83029 PB - American Society of Mechanical Engineers ER -