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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.

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.

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.