Browsing by Author "O'Shaughnessy, Seamus"
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Adaptive Design of a Prototype Electricity-Producing Biomass Cooking Stove
Robinson, Anthony; O'Shaughnessy, Seamus (2015)This work is a second iteration of an adaptive design project aimed at developing an appropriate off-grid technology for small-scale electricity generation in rural Malawi, and possibly for other developing countries. ... -
Battery Charging Considerations in Small Scale Electricity Generation from a Thermoelectric Module
Robinson, Anthony; O'Shaughnessy, Seamus (2014)This project involves the development of a prototype electrical gen erator for delivering and storing small amounts of electricity. Power is generated using the thermoelectric effect. A single ... -
Bubble-induced Marangoni convection
O'Shaughnessy, Seamus (Trinity College (Dublin, Ireland). Department of Mechanical and Manufacturing Engineering, 2011)Thermal Marangoni convection about a 1mm radius air bubble situated under a heated wall of constant temperature immersed in a silicone oil layer (Pr = 220) of constant depth 5mm was experimentally investigated using a flow ... -
A computational conjugate heat transfer study of a rectangular minichannel undergoing sinusoidal flow pulsations
O'Shaughnessy, Seamus (2022)The development of current and next generation high performance electronic devices has led to smaller components in more densely packed spaces. The increasing power levels have resulted in ever-increasing heat flux densities ... -
Convective heat transfer due to thermal Marangoni flow about two bubbles on a heated wall
Robinson, Anthony; O'Shaughnessy, Seamus (2014)Three dimensional simulations of t hermal Marangoni convection about two bubbles situated on a heated wall immersed in a liquid silicone oil layer have been performed to gain some insight into the thermal and ... -
Electricity Generation from a Biomass Cookstove with MPPT Power Management and Passive Liquid Cooling
O'Shaughnessy, Seamus; Robinson, Anthony (2018) -
Energy Efficiency of Electrical Infrared Heating Elements
O'Shaughnessy, Seamus; ROBINSON, ANTHONY (2016) -
Evaluation of bimodal microstructures in selective-laser-melted and heat-treated Ti-6Al-4V
O'Shaughnessy, Seamus (2023)As-built, SLM-printed Ti-6Al-4V parts suffer from non-equilibrium, brittle microstructures due to the formation of metastable α’-phase martensite as a result of the printing process. Post-processing heat treatments are ... -
Evaporating hydrophilic and superhydrophobic droplets in electric fields
Gibbons, Michael; O'Shaughnessy, Seamus (2021)Evaporating water droplets on a heated substrate are investigated in this work. Specifically, the influences of electric fields are studied in the context of the heat flux distribution beneath the droplets as well as the ... -
An experimental evaluation of thermoelectric generator performance under cyclic heating regimes
O'Shaughnessy, Seamus (2022)Thermal cycling is known to adversely affect the performance and lifespan of thermoelectric generators (TEGs) yet has received limited attention to date. The current study experimentally investigates the effect of thermal ... -
Experimental Investigation of Heat Transfer Enhancement by Pulsating Flow in a Minichannel
O'Shaughnessy, Seamus (2021)The increasing power density requirements of next generation high performance electronic devices has resulted in ever-increasing heat flux densities which necessitates the evolution of new liquid-based heat exchange ... -
An experimental-numerical study of heat transfer enhancement in a minichannel using asymmetric pulsating flows
O'Shaughnessy, Seamus (2023)The development of current and next generation high performance electronic devices has led to miniaturization in more densely packed spaces. The increasing power levels has resulted in ever-increasing heat flux densities ... -
Field Trial Testing of an Electricity-Producing Portable Biomass Cooking Stove in Rural Malawi
Robinson, Anthony; O'Shaughnessy, Seamus (2014)A novel off - grid electricity - producing device has been designed for integration with biomass - fuelled improved cooking stoves commonly in use in the developing world. The device operates on the ... -
Flexible solar and thermal energy conversion devices: Organic photovoltaics (OPVs), organic thermoelectric generators (OTEGs) and hybrid PV-TEG systems
O'Shaughnessy, Seamus; Pakdel, Amir (2022)Solar and thermal energy conversion are two major renewable energy technologies highly sought after in the past two decades by academia, industry, and policymakers. Besides the traditionally large-size solar and thermal ... -
Heat Transfer near an isolated gas bubble: The Combined Influence of Thermocapillarity and Buoyancy
Robinson, Anthony; O'Shaughnessy, Seamus (2013) -
The Influence of the Magnitude of Gravitational Acceleration on the Marangoni Convection about an Isolated Bubble under a Heated Wall
Robinson, Anthony; O'Shaughnessy, Seamus (2009)Thermocapillary or Marangoni convection is the liquid motion caused by surface tension variation in the presence of a temperature gradient along a gas–liquid or vapor–liquid interface. This work numerically ... -
Liquid immersion thermal management of lithium-ion batteries for electric vehicles: An experimental study
O'Shaughnessy, Seamus (2023)The thermal and electrical performance of lithium-ion batteries subjected to liquid immersion cooling conditions in a dielectric fluid has been experimentally investigated in this study. A single 26650 LiFePO4 cylindrical ... -
Natural convection from a triangular array of isothermal horizontal cylinders
O'Shaughnessy, Seamus; Gibbons, Michael; Persoons, Tim; Murray, Darina (2021)Natural convection heat transfer from three isothermally heated horizontal cylinders submerged in water in a triangular arrangement is investigated. Two configurations, named here as one over two and two over one, are ... -
Numerical Investigation of Bubble Induced Marangoni Convection: Some Aspects of Bubble Geometry
Robinson, Anthony; O'Shaughnessy, Seamus (2008)Thermocapillary or Marangoni convection is a surface tension driven flow that occurs when a gas–liquid or vapor–liquid interface is subjected to a temperature gradient. In the past, the contribution to local heat transfer ...