| A parametric investigation of diesel/methane dual-fuel combustion progression/stages in a heavy-duty optical engine Z Ahmad, O Kaario, C Qiang, V Vuorinen, M Larmi Applied Energy 251, 113191, 2019 | 68 | 2019 |
| Effect of primary and secondary alcohols as oxygenated additives on the performance and emission characteristics of diesel engine MA Mujtaba, HM Cho, HH Masjuki, MA Kalam, M Farooq, MEM Soudagar, ... Energy Reports 7, 1116-1124, 2021 | 60 | 2021 |
| A large-eddy simulation study on the influence of diesel pilot spray quantity on methane-air flame initiation H Kahila, O Kaario, Z Ahmad, MG Masouleh, B Tekgül, M Larmi, ... Combustion and Flame 206, 506-521, 2019 | 60 | 2019 |
| Effect of pilot fuel properties on lean dual-fuel combustion and emission characteristics in a heavy-duty engine Z Ahmad, O Kaario, C Qiang, M Larmi Applied Energy 282, 116134, 2020 | 31 | 2020 |
| Experimental study on tri-fuel combustion using premixed methane-hydrogen mixtures ignited by a diesel pilot Q Cheng, Z Ahmad, O Kaario, V Vuorinen, M Larmi international journal of hydrogen energy 46 (40), 21182-21197, 2021 | 30 | 2021 |
| An optical characterization of dual-fuel combustion in a heavy-duty diesel engine Z Ahmad, J Aryal, O Ranta, O Kaario, V Vuorinen, M Larmi SAE technical papers 2018, 2018 | 27 | 2018 |
| Cycle-to-cycle variations of dual-fuel combustion in an optically accessible engine Q Cheng, Z Ahmad, O Kaario, L Martti Applied Energy 254, 113611, 2019 | 26 | 2019 |
| Large-eddy simulation of spray assisted dual-fuel ignition under reactivity-controlled dynamic conditions B Tekgül, H Kahila, S Karimkashi, O Kaario, Z Ahmad, E Lendormy, ... Fuel 293, 120295, 2021 | 25 | 2021 |
| Effects of ethane addition on diesel-methane dual-fuel combustion in a heavy-duty engine Z Ahmad, O Kaario, S Karimkashi, C Qiang, V Vuorinen, M Larmi Fuel 289, 119834, 2021 | 23 | 2021 |
| Effect of pilot fuel properties on engine performance and combustion stability in a tri-fuel engine powered by premixed methane-hydrogen and diesel pilot Q Cheng, O Kaario, Z Ahmad, V Vuorinen, M Larmi International journal of hydrogen energy 46 (75), 37469-37486, 2021 | 21 | 2021 |
| Effect of negative valve overlap in a heavy-duty methanol-diesel dual-fuel engine: A pathway to improve efficiency Z Ahmad, O Kaario, C Qiang, M Larmi Fuel 317, 123522, 2022 | 15 | 2022 |
| Simultaneous visualization of natural luminosity and chemiluminescence of dual fuel combustion in an optically accessible engine Q Cheng, Z Ahmad, O Kaario, M Larmi SAE Technical Paper, 2020 | 9 | 2020 |
| Effect of hydrogen enhancement on natural flame luminosity of tri-fuel combustion in an optical engine Q Cheng, Z Ahmad, O Kaario, V Vuorinen, M Larmi Energies 15 (23), 9080, 2022 | 6 | 2022 |
| Impact of ethane enrichment on diesel-methane dual-fuel combustion Z Ahmad, O Kaario, Q Cheng, M Larmi SAE Technical Paper, 2020 | 6 | 2020 |
| Ammonia as a sustainable fuel: Review and novel strategies Q Cheng, A Muhammad, O Kaario, Z Ahmad, L Martti Renewable and Sustainable Energy Reviews 207, 114995, 2025 | 5 | 2025 |
| Optical Investigation of the Diesel Spray Characteristics and Spray Geometry Prediction Model by Artificial Neural Network Q Cheng, Z Ahmad, V Grahn, J Hyvonen, O Kaario, M Larmi SAE Technical Paper, 2023 | 2 | 2023 |
| Hyperspectral image reconstruction from colored natural flame luminosity imaging in a tri-fuel optical engine Q Cheng, S Karimkashi, Z Ahmad, O Kaario, V Vuorinen, M Larmi Scientific Reports 13 (1), 2445, 2023 | 2 | 2023 |
| Experimental Studies on Fuel Effects in Dual-Fuel Combustion Z Ahmad Aalto University, 2022 | 1 | 2022 |
| Multi-scale optical diagnostics for marine diesel spray Q Cheng, Z Ahmad, V Grahn, J Hyvönen, L Martti, O Kaario Energy, 134624, 2025 | | 2025 |
| An Optical Investigation of Diesel-Pilot and Methane Dual-Fuel Combustion Z Ahmad, J Aryal, O Ranta, O Kaario, M Larmi Nordic Flame Days 2017, 2017 | | 2017 |
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