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Professor Tony Roskilly's Outputs (150)

Study on solidification process of sodium acetate trihydrate for seasonal solar thermal energy storage (2017)
Journal Article
Ma, Z., Bao, H., & Roskilly, A. P. (2017). Study on solidification process of sodium acetate trihydrate for seasonal solar thermal energy storage. Solar Energy Materials and Solar Cells, 172, 99-107. https://doi.org/10.1016/j.solmat.2017.07.024

The phase change of sodium acetate (SA) aqueous solution to sodium acetate trihydrate (SAT) requires large supercooling degree, then the aqueous solution can be at liquid state at fairly low temperature without releasing the stored latent heat. Such... Read More about Study on solidification process of sodium acetate trihydrate for seasonal solar thermal energy storage.

A chemisorption power generation cycle with multi-stage expansion driven by low grade heat (2017)
Journal Article
Bao, H., Ma, Z., & Roskilly, A. P. (2017). A chemisorption power generation cycle with multi-stage expansion driven by low grade heat. Energy Conversion and Management, 150, 956-965. https://doi.org/10.1016/j.enconman.2017.07.032

Ammonia-based chemisorption cycle driven by low grade heat exhibits vast potential for power generation because there exists huge pressure difference between the two salt-adsorbent-filled reactors. However, the intrinsic feature of ammonia as a wet f... Read More about A chemisorption power generation cycle with multi-stage expansion driven by low grade heat.

The energy and indoor environmental performance of super-insulated dwellings – A fabric optimisation case study in the UK (2017)
Presentation / Conference Contribution
Liang, X., Royapoor, M., Wang, Y., & Roskilly, T. (2017, June). The energy and indoor environmental performance of super-insulated dwellings – A fabric optimisation case study in the UK. Presented at 4th Sustainable Thermal Energy Management International Conference (SusTEM2017), Netherlands

The role of high performance fabrics in reducing building energy demand is gaining international significance. With state-of-art building materials, it is feasible to exceed basic regulatory requirements of low energy buildings and create super-insul... Read More about The energy and indoor environmental performance of super-insulated dwellings – A fabric optimisation case study in the UK.

Simulation Study of an ORC System Driven by the Waste Heat Recovered from a Trigeneration System (2017)
Presentation / Conference Contribution
Ji, J., He, C., Xiao, Z., Miao, C., Luo, L., Chen, H., Zhang, X., Guo, H., Wang, Y., & Roskilly, T. (2016, October). Simulation Study of an ORC System Driven by the Waste Heat Recovered from a Trigeneration System. Presented at The 8th International Conference on Applied Energy – ICAE2016, Beijing, China

Trigeneration produces power, heat and cooling simultaneously. It utilises the waste heat from generator for heating and generating cooling. From previous studies, it is found that some part of the waste heat recovered by the trigeneration is not bei... Read More about Simulation Study of an ORC System Driven by the Waste Heat Recovered from a Trigeneration System.

Forecasting Electricity Generation Capacity in Malaysia: An Auto Regressive Integrated Moving Average Approach (2017)
Presentation / Conference Contribution
Haiges, R., Wang, Y., Ghoshray, A., & Roskilly, A. (2016, October). Forecasting Electricity Generation Capacity in Malaysia: An Auto Regressive Integrated Moving Average Approach. Presented at The 8th International Conference on Applied Energy – ICAE2016, Beijing, China

It is imperative for Malaysia to have a clear understanding of the future performance of its power sector with emphasis on the total installed capacity variable as this is integral to support the nation's capacity succession planning over an intermed... Read More about Forecasting Electricity Generation Capacity in Malaysia: An Auto Regressive Integrated Moving Average Approach.

Evaluation of CHP for Electricity and Drying of Agricultural Products in a Nigerian Rural Community (2017)
Presentation / Conference Contribution
Lamidi, R. O., Wang, Y. D., Pathare, P. B., & Roskily, A. (2016, October). Evaluation of CHP for Electricity and Drying of Agricultural Products in a Nigerian Rural Community. Presented at The 8th International Conference on Applied Energy – ICAE2016, Beijing, China

The techno-economic performance analysis of biogas production, power generation and recovery of heat for drying of agricultural products for a Nigerian rural community is explored through process simulation. In this work, biogas generation from a 10.... Read More about Evaluation of CHP for Electricity and Drying of Agricultural Products in a Nigerian Rural Community.

A Regional Life Cycle Sustainability Assessment Approach and its Application on Solar Photovoltaic (2017)
Presentation / Conference Contribution
Li, T., Roskilly, A. P., & Wang, Y. (2016, October). A Regional Life Cycle Sustainability Assessment Approach and its Application on Solar Photovoltaic. Presented at The 8th International Conference on Applied Energy – ICAE2016, Beijing, China

This paper proposes a sustainability assessment method which incorporating life cycle approach and sustainability theory. Northeast region of England is chosen as a case study. The assessment examines the sustainability of regional solar photovoltaic... Read More about A Regional Life Cycle Sustainability Assessment Approach and its Application on Solar Photovoltaic.

Optimal Hybrid Power System Using Renewables and Hydrogen for an Isolated Island in the UK (2017)
Presentation / Conference Contribution
Kennedy, N., Miao, C., Wu, Q., Wang, Y., Ji, J., & Roskilly, T. (2016, October). Optimal Hybrid Power System Using Renewables and Hydrogen for an Isolated Island in the UK. Presented at The 8th International Conference on Applied Energy – ICAE2016, Beijing, China

A distributed electrical power system using renewable generations (RG) on an island was studied. The original system includes micro hydropower stations, wind turbines and solar PVs with a bank of batteries for storage of the extra power from the rene... Read More about Optimal Hybrid Power System Using Renewables and Hydrogen for an Isolated Island in the UK.

Experimental Study for a Micro Smart Grid to Meet the Energy Demand of a Household (2017)
Presentation / Conference Contribution
Ji, J., Zheng, X., He, C., Zhang, Z., Wang, Y., & Roskilly, T. (2016, October). Experimental Study for a Micro Smart Grid to Meet the Energy Demand of a Household. Presented at The 8th International Conference on Applied Energy – ICAE2016, Beijing, China

In this research, a smart grid using renewable energy and energy storage unit is studied. The system's storage units applies novel supercapacitor technologies to work with traditional batteries. This study aims at satisfying the dynamic demand of a h... Read More about Experimental Study for a Micro Smart Grid to Meet the Energy Demand of a Household.

Analysis and Optimization on Energy Performance of a Rural House in Northern China Using Passive Retrofitting (2017)
Presentation / Conference Contribution
Liang, X., Wang, Y., Zhang, Y., Jiang, J., Chen, H., Zhang, X., Guo, H., & Roskilly, T. (2016, October). Analysis and Optimization on Energy Performance of a Rural House in Northern China Using Passive Retrofitting. Presented at The 8th International Conference on Applied Energy – ICAE2016, Beijing, China

A simulation study to improve energy and indoor environmental performance of a rural house by retrofitting in Beijing of China is presented in this paper. This dwelling was retrofitted using passive energy saving methods and it aims to reduce the ann... Read More about Analysis and Optimization on Energy Performance of a Rural House in Northern China Using Passive Retrofitting.

Experimental study of the operation characteristics of an air-driven free-piston linear expander (2017)
Journal Article
Wang, Y., Chen, L., Jia, B., & Roskilly, A. P. (2017). Experimental study of the operation characteristics of an air-driven free-piston linear expander. Applied Energy, 195, 93-99. https://doi.org/10.1016/j.apenergy.2017.03.032

Free-piston engine is a kind of linear internal combustion engine, and shows advantages on simple mechanical structure, low frictional losses, high thermal efficiency and operational flexibility. In this research, an experimental test rig of a dual-p... Read More about Experimental study of the operation characteristics of an air-driven free-piston linear expander.

Principle investigation on advanced absorption power generation cycles (2017)
Journal Article
Ma, Z., Bao, H., & Roskilly, A. P. (2017). Principle investigation on advanced absorption power generation cycles. Energy Conversion and Management, 150, 800-813. https://doi.org/10.1016/j.enconman.2017.02.078

Aiming at exploring advanced absorption power generation (APG) cycles using ammonia-water as working solution, the present study has studied one double-effect, one half-effect and one ejector-combined APG cycles based on one of the most widely studie... Read More about Principle investigation on advanced absorption power generation cycles.

Measuring sustainability: Life cycle approach to regional sustainability assessment on electricity options (2016)
Presentation / Conference Contribution
Li, T., Wang, Y., & Roskilly, A. P. (2016, October). Measuring sustainability: Life cycle approach to regional sustainability assessment on electricity options. Presented at 2016 International Conference for Students on Applied Engineering (ISCAE), Newcastle upon Tyne, UK

Sustainable development must equally representing economic, environmental and social values. However, as contradictory to its original intention, majority of existing literature on sustainability assessment only focus on either one or two of the thes... Read More about Measuring sustainability: Life cycle approach to regional sustainability assessment on electricity options.

Thermodynamic modelling and parameter determination of ejector for ejection refrigeration systems (2016)
Journal Article
Ma, Z., Bao, H., & Roskilly, A. P. (2017). Thermodynamic modelling and parameter determination of ejector for ejection refrigeration systems. International Journal of Refrigeration, 75, 117-128. https://doi.org/10.1016/j.ijrefrig.2016.12.005

This paper presents a detailed thermodynamic modelling method of an ejector for ejection refrigeration system. In this model, the primary flow in the ejector was assumed to fan out from the nozzle without mixing with the secondary flow in a certain d... Read More about Thermodynamic modelling and parameter determination of ejector for ejection refrigeration systems.

A comparative life cycle assessment of marine power systems (2016)
Journal Article
Ling-Chin, J., & Roskilly, A. P. (2016). A comparative life cycle assessment of marine power systems. Energy Conversion and Management, 127, 477-493. https://doi.org/10.1016/j.enconman.2016.09.012

Despite growing interest in advanced marine power systems, knowledge gaps existed as it was uncertain which configuration would be more environmentally friendly. Using a conventional system as a reference, the comparative life cycle assessment (LCA)... Read More about A comparative life cycle assessment of marine power systems.

Evaluation of energy and indoor environmental performance of a UK passive house dwelling (2016)
Presentation / Conference Contribution
Liang, X., Royapoor, M., Wang, Y., & Roskilly, T. (2016, September). Evaluation of energy and indoor environmental performance of a UK passive house dwelling. Presented at Building Simulation & Optimisation 2016, Newcastle upon Tyne

The preliminary findings of the energy and indoor environmental performance of a Passive House dwelling in North East of England is presented in this paper. This dwelling is designed to comply with the Passive House Standard (certified by the Interna... Read More about Evaluation of energy and indoor environmental performance of a UK passive house dwelling.

Investigating the implications of a new-build hybrid power system for Roll-on/Roll-off cargo ships from a sustainability perspective – A life cycle assessment case study (2016)
Journal Article
Ling-Chin, J., & Roskilly, A. P. (2016). Investigating the implications of a new-build hybrid power system for Roll-on/Roll-off cargo ships from a sustainability perspective – A life cycle assessment case study. Applied Energy, 181, 416-434. https://doi.org/10.1016/j.apenergy.2016.08.065

Marine transport has been essential for international trade. Concern for its environmental impact was growing among regulators, classification societies, ship operators, ship owners, and other stakeholders. By applying life cycle assessment, this art... Read More about Investigating the implications of a new-build hybrid power system for Roll-on/Roll-off cargo ships from a sustainability perspective – A life cycle assessment case study.

Dynamic modelling and experimental validation of scroll expander for small scale power generation system (2016)
Journal Article
Ma, Z., Bao, H., & Roskilly, A. P. (2017). Dynamic modelling and experimental validation of scroll expander for small scale power generation system. Applied Energy, 186, 262-281. https://doi.org/10.1016/j.apenergy.2016.08.025

This work presents a detailed and generic dynamic modelling and simulation method of scroll expander for small scale power generation system. The geometric models of the scroll were built step by step, including the scroll involute, scroll dimensions... Read More about Dynamic modelling and experimental validation of scroll expander for small scale power generation system.

An optimised chemisorption cycle for power generation using low grade heat (2016)
Journal Article
Bao, H., Ma, Z., & Roskilly, A. P. (2017). An optimised chemisorption cycle for power generation using low grade heat. Applied Energy, 186(3), 251-261. https://doi.org/10.1016/j.apenergy.2016.06.080

The integration of chemisorption cycle with turbine/expander opens up enormous opportunities of recovering low grade heat to meet different energy demands including heating, cooling and power generation. In the present study, a novel advanced resorpt... Read More about An optimised chemisorption cycle for power generation using low grade heat.