Dr Sumit Roy's Outputs (37)

Integrating Green Hydrogen into Building-Distributed Multi-Energy Systems with Water Recirculation (2024)
Journal Article
Lei, H., Thomas, J., Curnick, O., Shivaprasad, K., Roy, S., & Xing, L. (2025). Integrating Green Hydrogen into Building-Distributed Multi-Energy Systems with Water Recirculation. Applications in Energy and Combustion Science, 21, Article 100318. https://doi.org/10.1016/j.jaecs.2024.100318

This study proposes integrating a building-distributed multi-energy system (BDMES) with green hydrogen to decarbonise electricity generation for buildings. By producing and consuming green hydrogen locally at the building site, using a water electrol... Read More about Integrating Green Hydrogen into Building-Distributed Multi-Energy Systems with Water Recirculation.

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.

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.

Modelling of hydrogen blending into the UK natural gas network driven by a solid oxide fuel cell for electricity and district heating system (2023)
Journal Article
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

A thorough investigation of the thermodynamics and economic performance of a cogeneration system based on solid oxide fuel cells that provides heat and power to homes has been carried out in this study. Additionally, different percentages of green hy... Read More about Modelling of hydrogen blending into the UK natural gas network driven by a solid oxide fuel cell for electricity and district heating system.

Multi-objective optimisation of a power generation system integrating solid oxide fuel cell and recuperated supercritical carbon dioxide cycle (2023)
Journal Article
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

This article presents an advanced power generation system that integrates a solid oxide fuel cell (SOFC) module with a recuperated supercritical CO2 (s-CO2) cycle. The waste heat generated by the exhaust of the SOFC module is utilised to drive the s-... Read More about Multi-objective optimisation of a power generation system integrating solid oxide fuel cell and recuperated supercritical carbon dioxide cycle.

Techno-economic analysis of large-scale green hydrogen production and storage (2023)
Journal Article
Villarreal Vives, A. M., Wang, R., Roy, S., & Smallbone, A. (2023). Techno-economic analysis of large-scale green hydrogen production and storage. Applied Energy, 346, Article 121333. https://doi.org/10.1016/j.apenergy.2023.121333

Producing clean energy and minimising energy waste are essential to achieve the United Nations sustainable development goals such as Sustainable Development Goal 7 and 13. This research analyses the techno-economic potential of waste heat recovery fr... Read More about Techno-economic analysis of large-scale green hydrogen production and storage.

Techno-economic analysis of a fuel-cell driven integrated energy hub for decarbonising transportation (2023)
Journal Article
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

In this study an advanced integrated multigeneration energy hub is conceptualized combining solid oxide fuel cell (SOFC), molten carbonate fuel cell (MCFC), proton exchange membrane (PEM) electrolyser and methanol production unit. Using natural gas a... Read More about Techno-economic analysis of a fuel-cell driven integrated energy hub for decarbonising transportation.

Fuel cell integrated carbon negative power generation from biomass (2022)
Journal Article
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

Combining biomass-fuelled power plant with carbon capture and storage allows CO2 to be removed from the atmosphere, considering biomass a carbon–neutral fuel. In the present study, a biomass-based CO2 negative system has been proposed, which combines... Read More about Fuel cell integrated carbon negative power generation from biomass.

An integrated smart thermo-chemical energy network (2022)
Journal Article
Giampieri, A., Roy, S., Shivaprasad, K., Smallbone, A., & Roskilly, A. (2022). An integrated smart thermo-chemical energy network. Renewable and Sustainable Energy Reviews, 168, Article 112869. https://doi.org/10.1016/j.rser.2022.112869

Managing the intermittency of renewable sources together with transient (hourly to daily to seasonal) energy demands is one of the principal challenges of delivering a net-zero energy system. Smart multifunctional thermo-chemical energy networks repr... Read More about An integrated smart thermo-chemical energy network.

The techno-economics potential of hydrogen interconnectors for electrical energy transmission and storage (2022)
Journal Article
Patel, M., Roy, S., Roskilly, A. P., & Smallbone, A. (2022). The techno-economics potential of hydrogen interconnectors for electrical energy transmission and storage. Journal of Cleaner Production, 335, Article 130045. https://doi.org/10.1016/j.jclepro.2021.130045

This research introduces a ‘Hydrogen Interconnector System’ (HIS) as a novel method for transporting electrical energy over long distances. The system takes electricity from stranded renewable energy assets, converts it to hydrogen in an electrolyser... Read More about The techno-economics potential of hydrogen interconnectors for electrical energy transmission and storage.

A combined heat and green hydrogen (CHH) generator integrated with a heat network (2021)
Journal Article
Burrin, D., Roy, S., Roskilly, A. P., & Smallbone, A. (2021). A combined heat and green hydrogen (CHH) generator integrated with a heat network. Energy Conversion and Management, 246, Article 114686. https://doi.org/10.1016/j.enconman.2021.114686

Combined heat and power (CHP) systems offer high energy efficiencies as they utilise both the electricity generated and any excess heat by co-suppling to local consumers. This work presents the potential of a combined heat and hydrogen (CHH) system,... Read More about A combined heat and green hydrogen (CHH) generator integrated with a heat network.

The performance and efficiency of novel oxy-hydrogen-argon gas power cycles for zero emission power generation (2021)
Journal Article
Hodgson, M., Roy, S., Roskilly, A. P., & Smallbone, A. (2021). The performance and efficiency of novel oxy-hydrogen-argon gas power cycles for zero emission power generation. Energy Conversion and Management, 244, Article 114510. https://doi.org/10.1016/j.enconman.2021.114510

This study investigates the performance and efficiency of closed-loop oxy-hydrogen Brayton power cycles through numerical modelling and simulation. Coupled with storage hydrogen and oxygen produced by a water-electrolysis system, these cycles have th... Read More about The performance and efficiency of novel oxy-hydrogen-argon gas power cycles for zero emission power generation.

Development and validation of an artificial intelligence platform for characterization of the exergy-emission-stability profiles of the PPCI-RCCI regimes in a diesel-methanol operation under varying injection phasing strategies: A Gene Expression Programming approach (2021)
Journal Article
Kakati, D., Roy, S., & Banerjee, R. (2021). Development and validation of an artificial intelligence platform for characterization of the exergy-emission-stability profiles of the PPCI-RCCI regimes in a diesel-methanol operation under varying injection phasing strategies: A Gene Expression Programming approach. Fuel, 299, https://doi.org/10.1016/j.fuel.2021.120864

Exploring the synergistic potential of response surface methodology based multi-objective optimization in the performance–emission-stability trade-off envelope of an existing diesel engine (2020)
Journal Article
Biswas, S., Kakati, D., Roy, S., Chakraborti, P., & Banerjee, R. (online). Exploring the synergistic potential of response surface methodology based multi-objective optimization in the performance–emission-stability trade-off envelope of an existing diesel engine. Energy Sources Part A: Recovery, Utilization, and Environmental Effects, https://doi.org/10.1080/15567036.2020.1840670

The present study reveals synergistic possibilities of split-injection techniques under different exhaust gas recirculation (EGR) profiles to meet the emission-performance-stability trade-off from existing diesel engines under the Bharat Stage constr... Read More about Exploring the synergistic potential of response surface methodology based multi-objective optimization in the performance–emission-stability trade-off envelope of an existing diesel engine.

Realization of a novel free-piston engine generator for hybrid electric-vehicle applications (2020)
Journal Article
Smallbone, A., Hanipah, M. R., Jia, B., Scott, T., Heslop, J., Towell, B., Lawrence, C., Roy, S., Vijayalakshmi, S. K., & Roskilly, A. P. (2020). Realization of a novel free-piston engine generator for hybrid electric-vehicle applications. Energy and Fuels, 34(10), 12926-12939. https://doi.org/10.1021/acs.energyfuels.0c01647

Free-piston engine generators (FPEGs) have huge potential to be the principle energy conversion device for generating electricity from fuel as part of a hybrid electric vehicle (EV) powertrain system. The principal advantages lays in the fact that th... Read More about Realization of a novel free-piston engine generator for hybrid electric-vehicle applications.

Evaluation of performance characteristics of a novel hydrogen-fuelled free-piston engine generator (2020)
Journal Article
Ngwaka, U., Smallbone, A., Jia, B., Lawrence, C., Towell, B., Roy, S., Kv, S., & Roskilly, A. P. (2021). Evaluation of performance characteristics of a novel hydrogen-fuelled free-piston engine generator. International Journal of Hydrogen Energy, 46(66), 33314-33324. https://doi.org/10.1016/j.ijhydene.2020.02.072

In this work, we present the experimental results obtained from hydrogen fuelled spark-ignited dual piston free-piston engine generator (FPEG) prototype operated in two-stroke and four-stroke mode. The FPEG testing was successfully conducted at 3.7 c... Read More about Evaluation of performance characteristics of a novel hydrogen-fuelled free-piston engine generator.

Development of an artificial neural network based virtual sensing platform for the simultaneous prediction of emission-performance-stability parameters of a diesel engine operating in dual fuel mode with port injected methanol (2019)
Journal Article
Kakati, D., Roy, S., & Banerjee, R. (2019). Development of an artificial neural network based virtual sensing platform for the simultaneous prediction of emission-performance-stability parameters of a diesel engine operating in dual fuel mode with port injected methanol. Energy Conversion and Management, 184, https://doi.org/10.1016/j.enconman.2019.01.087

Effective utilisation of waste cooking oil in a single-cylinder diesel engine using alumina nanoparticles (2019)
Journal Article
Roy, S., Parsi, P. K., Kotha, R. S., Barman, S., Vinayak, K., Roy, M. M., & Banerjee, R. (2020). Effective utilisation of waste cooking oil in a single-cylinder diesel engine using alumina nanoparticles. Sustainable Energy & Fuels, 4(2), 571-581. https://doi.org/10.1039/c9se00393b

Considering the rapid decline in the amount of fossil fuels and the large quantities of emissions they release into the atmosphere, which are responsible for global warming, researchers are looking for alternative sources of energy. Biodiesel is an a... Read More about Effective utilisation of waste cooking oil in a single-cylinder diesel engine using alumina nanoparticles.