Staff profile

• Energy systems
• Hydrogen energy
• Carbon capture, utilisation and storage (CCUS)
• Fuel cells
• Biomass gasification and pyrolysis
• Waste heat recovery

Journal Article

• Techno-economic assessment of a fuel flexible free piston engine generator based energy system for cold ironing application
  Roy, D., Ngwaka, U., Shivaprasad, K. V., Zhu, S., Taghavifar, H., Williams, R., Smallbone, A., & Roskilly, A. P. (2025). Techno-economic assessment of a fuel flexible free piston engine generator based energy system for cold ironing application. Energy, 332, Article 136954. https://doi.org/10.1016/j.energy.2025.136954
• Technoeconomic and environmental performance assessment of solid oxide fuel cell-based cogeneration system configurations
  Roy, D., Samanta, S., Roy, S., Smallbone, A., & Roskilly, A. P. (2024). Technoeconomic and environmental performance assessment of solid oxide fuel cell-based cogeneration system configurations. Energy, 310, Article 133145. https://doi.org/10.1016/j.energy.2024.133145
• Hybrid renewable energy systems for sustainable power supply in remote location: Techno-economic and environmental assessment
  Roy, D., Wang, R., Roy, S., Smallbone, A., & Roskilly, A. P. (2024). Hybrid renewable energy systems for sustainable power supply in remote location: Techno-economic and environmental assessment. Energy Conversion and Management: X, 24, Article 100793. https://doi.org/10.1016/j.ecmx.2024.100793
• Computational fluid dynamic analysis of the effect of inlet valve closing timing on common rail diesel engines fueled with butanol–diesel blends
  Lamani, V. T., Shivaprasad, K. V., Roy, D., Yadav, A. K., & Kumar, G. N. (2024). Computational fluid dynamic analysis of the effect of inlet valve closing timing on common rail diesel engines fueled with butanol–diesel blends. Frontiers in Energy Research, 12, 1447307. https://doi.org/10.3389/fenrg.2024.1447307
• Hydrogen rich syngas production through sewage sludge pyrolysis: A comprehensive experimental investigation and performance optimisation using statistical analysis
  Shivaprasad, K. V., Heslop, J., Roy, D., Malik, A., Wang, Y., Roskilly, A. P., & Bao, H. (2024). Hydrogen rich syngas production through sewage sludge pyrolysis: A comprehensive experimental investigation and performance optimisation using statistical analysis. Process Safety and Environmental Protection, 187, 270-278. https://doi.org/10.1016/j.psep.2024.04.071
• Energy and economic analysis of building integrated photovoltaic thermal system: Seasonal dynamic modeling assisted with machine learning-aided method and multi-objective genetic optimization
  Shboul, B., Zayed, M. E., Ashraf, W. M., Usman, M., Roy, D., Irshad, K., & Rehman, S. (2024). Energy and economic analysis of building integrated photovoltaic thermal system: Seasonal dynamic modeling assisted with machine learning-aided method and multi-objective genetic optimization. Alexandria Engineering Journal, 94, 131-148. https://doi.org/10.1016/j.aej.2024.03.049
• Techno-economic and environmental analyses of hybrid renewable energy systems for a remote location employing machine learning models
  Roy, D., Zhu, S., Wang, R., Mondal, P., Ling-Chin, J., & Roskilly, A. P. (2024). Techno-economic and environmental analyses of hybrid renewable energy systems for a remote location employing machine learning models. Applied Energy, 361, Article 122884. https://doi.org/10.1016/j.apenergy.2024.122884
• Techno-economic analysis, emergy assessment, and optimization using response surface methodology of a solar and biomass-based co-generation system
  Khosravi, S., Roy, D., Khoshbakhti Saray, R., Neshat, E., & Arabkoohsar, A. (2024). Techno-economic analysis, emergy assessment, and optimization using response surface methodology of a solar and biomass-based co-generation system. Energy Conversion and Management, 307, Article 118376. https://doi.org/10.1016/j.enconman.2024.118376
• Techno-economic analysis of solid oxide fuel cell-based energy systems for decarbonising residential power and heat in the United Kingdom
  Roy, D., Samanta, S., Roy, S., Smallbone, A., & Roskilly, A. P. (2024). Techno-economic analysis of solid oxide fuel cell-based energy systems for decarbonising residential power and heat in the United Kingdom. Green Chemistry, 26(7), 3979-3994. https://doi.org/10.1039/d3gc02645k
• Research and innovation identified to decarbonise the maritime sector
  Ling-Chin, J., Simpson, R., Cairns, A., Wu, D., Xie, Y., Song, D., Kashkarov, S., Molkov, V., Moutzouris, I., Wright, L., Tricoli, P., Dansoh, C., Panesar, A., Chong, K., Liu, P., Roy, D., Wang, Y., Smallbone, A., & Roskilly, A. P. (2024). Research and innovation identified to decarbonise the maritime sector. Green Energy and Sustainability, 4(1), 1-14. https://doi.org/10.47248/ges2404010001
• Technoeconomic, environmental and multi criteria decision making investigations for optimisation of off-grid hybrid renewable energy system with green hydrogen production
  Roy, D., Bhowmik, M., & Roskilly, A. P. (2024). Technoeconomic, environmental and multi criteria decision making investigations for optimisation of off-grid hybrid renewable energy system with green hydrogen production. Journal of Cleaner Production, 443, Article 141033. https://doi.org/10.1016/j.jclepro.2024.141033
• Techno-economic and environmental analyses of a solar-assisted Stirling engine cogeneration system for different dwelling types in the United Kingdom
  Roy, D., Zhu, S., Wang, R., González-Pino, I., Herrando, M., Markides, C. N., & Roskilly, A. P. (2024). Techno-economic and environmental analyses of a solar-assisted Stirling engine cogeneration system for different dwelling types in the United Kingdom. Energy Conversion and Management, 302, Article 118160. https://doi.org/10.1016/j.enconman.2024.118160
• Techno-economic analysis of direct air carbon capture and hydrogen production integrated with a small modular reactor
  Slavin, B., Wang, R., Roy, D., Ling-Chin, J., & Roskilly, A. P. (2024). Techno-economic analysis of direct air carbon capture and hydrogen production integrated with a small modular reactor. Applied Energy, 356, 122407. https://doi.org/10.1016/j.apenergy.2023.122407
• Modelling of hydrogen blending into the UK natural gas network driven by a solid oxide fuel cell for electricity and district heating system
  Samanta, S., Roy, D., Roy, S., Smallbone, A., & Roskilly, A. P. (2024). Modelling of hydrogen blending into the UK natural gas network driven by a solid oxide fuel cell for electricity and district heating system. Fuel, 355, Article 129411. https://doi.org/10.1016/j.fuel.2023.129411
• Assessing the techno-economic viability of a trigeneration system integrating ammonia-fuelled solid oxide fuel cell
  Roy, D., Roy, S., Smallbone, A., & Roskilly, A. P. (2023). Assessing the techno-economic viability of a trigeneration system integrating ammonia-fuelled solid oxide fuel cell. Applied Energy, 357, Article 122463. https://doi.org/10.1016/j.apenergy.2023.122463
• Multi-objective optimisation of a power generation system integrating solid oxide fuel cell and recuperated supercritical carbon dioxide cycle
  Roy, D., Samanta, S., Roy, S., Smallbone, A., & Roskilly, A. P. (2023). Multi-objective optimisation of a power generation system integrating solid oxide fuel cell and recuperated supercritical carbon dioxide cycle. Energy, 281, Article 128158. https://doi.org/10.1016/j.energy.2023.128158
• Techno-economic analysis of a fuel-cell driven integrated energy hub for decarbonising transportation
  Samanta, S., Roy, D., Roy, S., Smallbone, A., & Roskilly, A. P. (2023). Techno-economic analysis of a fuel-cell driven integrated energy hub for decarbonising transportation. Renewable and Sustainable Energy Reviews, 179, Article 113278. https://doi.org/10.1016/j.rser.2023.113278
• Fuel cell integrated carbon negative power generation from biomass
  Roy, D., Samanta, S., Roy, S., Smallbone, A., & Roskilly, A. P. (2023). Fuel cell integrated carbon negative power generation from biomass. Applied Energy, 331, Article 120449. https://doi.org/10.1016/j.apenergy.2022.120449