Dynamic structural design of offshore direct-drive wind turbine electrical generators. (2018)
Journal Article
Jaen-Sola, P., McDonald, A. S., & Oterkus, E. (2018). Dynamic structural design of offshore direct-drive wind turbine electrical generators. Ocean Engineering, 161, 1-19. https://doi.org/10.1016/j.oceaneng.2018.04.074

Direct-drive permanent magnet generators for multi-MW wind turbines are low speed high torque electrical machines requiring large, heavy and robust structures to maintain the airgap clearance open and stable. The structural mass of radial-flux genera... Read More about Dynamic structural design of offshore direct-drive wind turbine electrical generators..

Numerical investigation for optimizing segmented micro-channel heat sink by Taguchi-Grey method (2018)
Journal Article
Naqiuddin, N. H., Saw, L. H., Yew, M. C., Yusof, F., Poon, H. M., Cai, Z., & Thiam, H. S. (2018). Numerical investigation for optimizing segmented micro-channel heat sink by Taguchi-Grey method. Applied Energy, 222, 437-450. https://doi.org/10.1016/j.apenergy.2018.03.186

• Novel segmented micro-channel heat sink has been designed. • CFD models have been developed to simulate the performance of the segmented micro-channel. • Enhanced the cooling performance of the straight micro-channel. • Optimizing the segmented mic... Read More about Numerical investigation for optimizing segmented micro-channel heat sink by Taguchi-Grey method.

Numerical investigation of a joint approach to thermal energy storage and compressed air energy storage in aquifers (2017)
Journal Article
Guo, C., Zhang, K., Pan, L., Cai, Z., Li, C., & Li, Y. (2017). Numerical investigation of a joint approach to thermal energy storage and compressed air energy storage in aquifers. Applied Energy, 203, 948-958. https://doi.org/10.1016/j.apenergy.2017.06.030

Different from conventional compressed air energy storage (CAES) systems, the advanced adiabatic compressed air energy storage (AA-CAES) system can store the compression heat which can be used to reheat air during the electricity generation stage. Th... Read More about Numerical investigation of a joint approach to thermal energy storage and compressed air energy storage in aquifers.

Exploring multi-objective trade-offs in the design space of a waste heat recovery system (2017)
Journal Article
Mokhtar, M., Burns, S., Ross, D., & Hunt, I. (2017). Exploring multi-objective trade-offs in the design space of a waste heat recovery system. Applied Energy, 195, 114-124. https://doi.org/10.1016/j.apenergy.2017.03.030

A waste heat recovery system (WHRS) is used to capture waste heat released from an industrial process, and transform the heat into reusable energy. In practice, it can be difficult to identify the optimal form of a WHRS for a particular installation,... Read More about Exploring multi-objective trade-offs in the design space of a waste heat recovery system.

Optimising a Waste Heat Recovery System using Multi-Objective Evolutionary Algorithm (2016)
Presentation / Conference Contribution
Mokhtar, M., Hunt, I., Burns, S., & Ross, D. (2016, July). Optimising a Waste Heat Recovery System using Multi-Objective Evolutionary Algorithm. Presented at Proceedings of the 2016 on Genetic and Evolutionary Computation Conference Companion - GECCO '16 Companion

A waste heat recovery system (WHRS) on a process with variable output, is an example of an intermittent renewable process. WHRS recycles waste heat into usable energy. As an example, waste heat produced from refrigeration can be used to provide hot w... Read More about Optimising a Waste Heat Recovery System using Multi-Objective Evolutionary Algorithm.

Optimum design of a PV driven transpired plate solar air heater for drying woodchip in Scotland. (2011)
Presentation / Conference Contribution
Grassie, T. (2011, August). Optimum design of a PV driven transpired plate solar air heater for drying woodchip in Scotland. Paper presented at Solaris 2011: 5th International Conference on Solar Radiation and Daylighting

The design and operation of a PV driven solar air heating system for drying woodchip is considered. For a given weight and moisture content of the woodchip sample, the effect of the dryer unit configuration on drying rate, that is, either operating w... Read More about Optimum design of a PV driven transpired plate solar air heater for drying woodchip in Scotland..

Finite Volume Computational Fluid Dynamics Package for Solving Convective Heat Transfer Cases (2008)
Journal Article
Junaidi, H., Henderson, D., Grassie, T., Currie, J., & Muneer, T. (2008). Finite Volume Computational Fluid Dynamics Package for Solving Convective Heat Transfer Cases. International Journal of Mechanical Engineering Education, 36(2), 92-112. https://doi.org/10.7227/ijmee.36.2.2

Computational fl uid dynamics (CFD) has brought a step change in the fi eld of fl ow analysis,
particularly in the areas of fl uid dynamics and heat transfer, which are intertwined. It has carved a
niche in applications where, a decade back, experi... Read More about Finite Volume Computational Fluid Dynamics Package for Solving Convective Heat Transfer Cases.

Modelling of a low-temperature differential Stirling engine (2007)
Journal Article
Robson, A., Grassie, T., & Kubie, J. (2007). Modelling of a low-temperature differential Stirling engine. Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science, 221(8), 927-943. https://doi.org/10.1243/09544062JMES631

Abstract: A full theoretical model of a low temperature difference Stirling engine is developed in this paper.
The model, which starts from the first principles, gives a full differential description of the major components
of the engine: the behav... Read More about Modelling of a low-temperature differential Stirling engine.

A third order analysis of a low temperature differential Ringbom-Stirling engine (2007)
Thesis
Robson, A. P. A third order analysis of a low temperature differential Ringbom-Stirling engine. (Thesis). Edinburgh Napier University. http://researchrepository.napier.ac.uk/id/eprint/4167

The analysis of the Stirling engine has long been hampered by a lack of understanding of the complex relationship between the mechanical dynamics, thermodynamics and fluid dynamics operating within the engine. This thesis outlines the research into L... Read More about A third order analysis of a low temperature differential Ringbom-Stirling engine.

Development of a computer model to simulate a low temperature differential Ringbom stirling engine. (2005)
Presentation / Conference Contribution
Robson, A., & Grassie, T. (2005, September). Development of a computer model to simulate a low temperature differential Ringbom stirling engine

The Stirling cycle engine of 1816 and subsequent closed cycle regenerative heat engines have been the subject of many analyses. The complex nature of the mechanical, fluid, and thermal processes within the engine makes an accurate analysis challengi... Read More about Development of a computer model to simulate a low temperature differential Ringbom stirling engine..

A study of transient processes in a closed vessel due to injection of hot liquid sprays (2004)
Journal Article
Valha, J., Lewis, J., & Kubie, J. (2004). A study of transient processes in a closed vessel due to injection of hot liquid sprays. International Journal of Heat and Mass Transfer, 47(12-13), 2877-2882. https://doi.org/10.1016/j.ijheatmasstransfer.2004.01.005

An experimental study to investigate the transient processes which occur when hot liquid spray droplets are suddenly injected into a gas contained in a closed chamber was reported previously [Proc. Inst. Mech. Eng. 215E (2001) 79]. That work also pre... Read More about A study of transient processes in a closed vessel due to injection of hot liquid sprays.

Measurements of the cavitation threshold of multigrade engine oils under dynamic stressing by pulses of negative pressure (2003)
Journal Article
Williams, P. R., & Williams, R. L. (2003). Measurements of the cavitation threshold of multigrade engine oils under dynamic stressing by pulses of negative pressure. International Journal of Engine Research, 4(4), 269-282. https://doi.org/10.1243/146808703322743886

This paper reports the first measurements of the effective tensile strength (or ‘cavitation threshold’) Fc, of degassed samples of a commercial multigrade engine oil over a range of temperatures, T, which are representative of those encountered under... Read More about Measurements of the cavitation threshold of multigrade engine oils under dynamic stressing by pulses of negative pressure.

Transient processes in a closed vessel due to injection of hot liquid sprays (2001)
Journal Article
Valha, J., Lewis, J. S., & Kubie, J. (2001). Transient processes in a closed vessel due to injection of hot liquid sprays. Proceedings of the Institution of Mechanical Engineers, Part E: Journal of Process Mechanical Engineering, 215(1), 79-91. https://doi.org/10.1243/0954408011530316

An experimental and theoretical study has been made to investigate the transient processes which occur when hot liquid spray droplets are suddenly injected into a gas contained in a closed chamber. A novel experimental apparatus was employed in which... Read More about Transient processes in a closed vessel due to injection of hot liquid sprays.