Outputs (104)

Techno-economic assessment of a fuel flexible free piston engine generator based energy system for cold ironing application (2025)
Journal Article
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

This study assesses the techno-economic viability of a fuel-flexible free piston engine generator (FPEG) for providing shore power to maritime vessels (cold ironing) within ports. In cold ironing applications a localised power generation is required... Read More about Techno-economic assessment of a fuel flexible free piston engine generator based energy system for cold ironing application.

Decarbonisation pathways for industrial clusters through multi-energy systems (2025)
Journal Article
Ngwaka, U., Khalid, Y., Ling-Chin, J., Counsell, J., Pinedo-Cuenca, R., Dawood, H., Smallbone, A. J., Dawood, N., & Roskilly, A. P. (2025). Decarbonisation pathways for industrial clusters through multi-energy systems. Sustainable Futures, 9, Article 100656. https://doi.org/10.1016/j.sftr.2025.100656

Decarbonising industrial clusters will lay the foundation for decarbonisation in non-cluster-based industries whilst aligning with carbon-neutral targets. Nonetheless, the technical and economic viability appraisal for appropriate decarbonisation tec... Read More about Decarbonisation pathways for industrial clusters through multi-energy systems.

Experimental and numerical investigation to optimise liquid desiccant system for advanced air conditioning (2025)
Journal Article
Shivaprasad, K. V., Roy, S., Giampieri, A., Smallbone, A., & Roskilly, A. P. (2025). Experimental and numerical investigation to optimise liquid desiccant system for advanced air conditioning. Scientific Reports, 15, Article 7151. https://doi.org/10.1038/s41598-025-88738-2

This study aims to experimentally demonstrate a liquid desiccant systems effectiveness by using thermo-chemical fluid, such as aqueous solution of calcium chloride. This study evaluated the effect of operating temperatures on air properties (temperat... Read More about Experimental and numerical investigation to optimise liquid desiccant system for advanced air conditioning.

Investigation of the operating characteristics of a free-piston closed-cycle Joule engine generator with helium as working fluid (2025)
Journal Article
Wang, B., Zhu, S., Ngwaka, U., Jia, B., Vijayalakshmi Shivaprasad, K., Wang, Y., Smallbone, A., Paul Roskilly, A., & Luo, E. (2025). Investigation of the operating characteristics of a free-piston closed-cycle Joule engine generator with helium as working fluid. Energy Conversion and Management: X, 26, Article 100909. https://doi.org/10.1016/j.ecmx.2025.100909

As an emerging micro- or small-scale energy conversion technology, linear Joule engine generators (LJEGs) combine the advantages of external combustion engines and linear generators, feature the advantages of high thermal-to-electrical efficiency, mu... Read More about Investigation of the operating characteristics of a free-piston closed-cycle Joule engine generator with helium as working fluid.

A preliminary experimental study on a free-piston engine generator prototype (2025)
Presentation / Conference Contribution
Zhu, S., Vijayalakshmi, S., Ngwaka, U., Roy, S., Williams, R., Smallbone, A., & Roskilly, A. P. (2024, September). A preliminary experimental study on a free-piston engine generator prototype. Presented at Energy Proceedings, Niigata, Japan

As an emerging micro- or small-scale energy conversion technology, free-piston engine generator (FPEG) features the advantages of high efficiency, high volumetric power density, and multi-fuel adaptability potential. To solve the issues that the prev... Read More about A preliminary experimental study on a free-piston engine generator prototype.

Hybrid renewable energy systems for sustainable power supply in remote location: Techno-economic and environmental assessment (2024)
Journal Article
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

Electricity supply is inconsistent and unreliable in many remote areas of India, where depending solely on a single renewable energy source is impractical. In this context, this study investigates the potential of off-grid hybrid renewable energy sys... Read More about Hybrid renewable energy systems for sustainable power supply in remote location: Techno-economic and environmental assessment.

Technoeconomic and environmental performance assessment of solid oxide fuel cell-based cogeneration system configurations (2024)
Journal Article
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

In this study, an innovative energy solution to fulfil the electricity and heating needs of a mixed community, including residences, a commercial building, and a small brewery has been investigated. The primary objective is to comprehensively analyse... Read More about Technoeconomic and environmental performance assessment of solid oxide fuel cell-based cogeneration system configurations.

Research and innovation identified to decarbonise the maritime sector (2024)
Journal Article
Ling-Chin, J., Simpson, R., Cairns, A., Wu, D., Xie, Y., Song, D., …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

The maritime sector requires technically, environmentally, socially,
and economically informed pathways to decarbonise and eliminate
all emissions harmful to the environment and health. This is
extremely challenging and complex, and a wide rang... Read More about Research and innovation identified to decarbonise the maritime sector.

Techno-economic analysis of solid oxide fuel cell-based energy systems for decarbonising residential power and heat in the United Kingdom (2024)
Journal Article
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

This study examines the feasibility of using hydrogen as a clean energy source for residential consumers in the UK through a low-carbon energy hub. Two cases were compared: a solid oxide fuel cell (SOFC) integrated combined heat and power (CHP) syste... Read More about Techno-economic analysis of solid oxide fuel cell-based energy systems for decarbonising residential power and heat in the United Kingdom.

Assessing the techno-economic viability of a trigeneration system integrating ammonia-fuelled solid oxide fuel cell (2023)
Journal Article
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

In recent years, ammonia has gained traction as a clean fuel alternative and a promising energy carrier. In this study, a trigeneration system fuelled by ammonia has been conceptualised, integrating a solid oxide fuel cell stack for power generation,... Read More about Assessing the techno-economic viability of a trigeneration system integrating ammonia-fuelled solid oxide fuel cell.