Browsing Research Centres by Title

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Analysis of direct interconnection technique for offshore airborne wind energy systems under normal and fault conditions

Salari, Mahdi Ebrahimi; Coleman, Joseph; Toal, Daniel (Elsevier, 2019)

Direct interconnection is a novel technique for interconnecting offshore airborne wind energy (AWE) generators which facilitates the removal of power converters from the offshore generation site. In this technique, unlike ...
Blended learning and the professional development of on-campus teachers: a case study

Slattery, Darina M.; Ledwith, Ann; Hyland, Pádraig (OpenEducationEuropa, 2017)

On-campus institutions are increasingly moving towards blended modes of delivery. In some cases, these blended programmes supplement existing offerings; in other cases, they replace them entirely. Regardless of the reasons ...
Comparing the dialogue of experts and novices in interdisciplinary teams to inform design education

Kiernan, Louise; Ledwith, Ann; Lynch, Raymond (Springer, 2019)

Design education has moved towards a collaborative practice where designers work in teams and with other disciplines to solve unstructured problems. Along with the cognitive skills involved in the execution of the design ...
A comparison of analytical test methods in dairy processing

Burke, Niamh; Zacharski, Krzysztof A.; Adley, Catherine C.; Southern, Mark (Elsevier, 2020)

Dairy quality strategies start at the beginning of a raw milk supply chain at farm level, but it is the obligation of the manufacturer at a dairy processing plant to ensure quality is upheld from intake to finished ...
Dairy processing heat and energy recovery: an analysis of energy usage within the dairy processing sector in Ireland

O'Reilly, Alan J. (University of Limerick, 2017)

The Irish dairy processing sector is one of the largest in Europe with annual production figures in excess of five billion litres. In 2013, the revenue from the dairy sector surpassed €3 Billion for the first time with an ...
The design of an autonomous mobile robot built to investigate behaviour based control

Leyden, Mark Christopher (University of Limerick, 2000)

Within this thesis, the design of an autonomous mobile robot built as a testbed to investigate behaviour-based control in a real world environment is described. By adopting a behaviour-based control architecture the robot ...
Development and testing of a control system for the automatic flight of tethered parafoils

Coleman, Joseph; Ahmad, Hammad; Toal, Daniel (Wiley and Sons, 2016)

This paper presents the design and testing of a control system for the robotic flight of tethered kites. The use of tethered kites as a prime mover in airborne wind energy is undergoing active research in several quarters. ...
Development and testing of remotely operated vehicle for inspection of offshore renewable devices

Capocci, Romano; Omerdić, Edin; Dooly, Gerard; Toal, Daniel (Springer, 2018)

This paper presents novel aspects of a Remotely Operated Vehicle (ROV) designed to inspect offshore renewable energy devices. The relationship of some design aspects of the ROV to resilient systems is discussed, focusing on ...
The development of testbed vehicles for underwater systems testing and AUV controller experimentation

Nolan, Seán Patrick (University of Limerick, 2003)

The goal of this research project is the design and construction of a submersible robot platform for underwater systems testing and AUV controller experimentation. Requirements of the robot platform are that it should ...
Direct interconnection of offshore electricity generators

Pican, Emmanuel (University of Limerick, 2011)

In distributed energy systems, permanent magnet synchronous generators (PMSG) are often connected to the grid via power converters, such as voltage source converters (VSC). The price of the converter constitutes a large ...
Direct interconnection technique applied to marine renewable generators, specifically airborne wind energy

Salari, Mahdi Ebrahimi (University of Limerick, 2018)

This thesis explores application of the Direct Interconnection Technique (DIT) to Marine Renewable Energy (MRE) devices specifically Airborne Wind Energy (AWE). Interconnecting offshore generators and delivering generated ...
Distributed control system and novel power take off method for pumping-mode airborne wind energy

Coleman, Joseph (University of Limerick, 2014)

The robotic control of tethered parafoils enables a number of exciting applications, primarily a novel approach to wind energy generation. The airborne wind energy (AWE) paradigm aims to reduce greatly the mass and cost ...
Embedding optimization with deterministic discrete event simulation for assignment of cross-trained operators: an assembly line case study

Dagkakis, Georgios; Rotondo, Anna; Heavey, Cathal (Elsevier, 2019)

In manufacturing systems where productivity is constrained by operatorsâ availability, cross-training strategies can be used to enable dynamic assignment of operators to workstations. However, finding an assignment ...
Enablers and barriers to the successful implementation of project control systems in the petroleum and chemical industry

Jawad, Sahar; Ledwith, Ann; Panahifar, Farhad (SAGE Publications, 2018)

Project budget and schedule overruns are becoming critical challenges within the petroleum and chemical industry due to a sharp decline in the oil prices and the subsequent impact this has had on the global financial market. ...
Experimental rig investigation of a direct interconnection technique for airborne wind energy systems

Salari, Mahdi Ebrahimi; Coleman, Joseph; O'Donnell, Cathal; Toal, Daniel (Elsevier, 2020)

Airborne wind energy is a new approach to reach the stronger and more consistent winds at higher altitudes. In this paper, the interconnection of pumping mode airborne wind energy systems inside an energy farm is investigated. ...
Fault adaptation by reconfiguring flight controls using control allocation

Ahmad, Hammad (University of Limerick, 2009)

This research work focuses on the design and implementation of control law and control allocation for overactuated, nonlinear model of commercial aircraft (B747-200). The redundancies in this aircraft are exploited to ...
An FPGA based reconfigurable IPSec ESP core suitable for IoT applications

Rao, Muzaffar; Coleman, Joseph; Newe, Thomas (IEEE Computer Society, 2016)

This work implements an FPGA (Field Programmable Gate Array) based reconfigurable IPSec ESP core. The IPSec protocol, developed by the IETF (Internet Engineering Task Force) in 1998, is a popular solution to facilitate ...
Fully automatic visual servoing control for work-class marine intervention ROVs

Sivčev, Satja; Rossi, Matija; Coleman, Joseph; Dooly, Gerard; Omerdić, Edin; Toal, Daniel (Elsevier, 2018)

ROVs with hydraulic manipulators are extensively used for subsea intervention. With camera feedback from the scene, manipulators are teleoperated and slaved to pilot held master arms. While standard for offshore oil and ...
Geometric insight into the control allocation problem for open-frame ROVs and visualisation of solution

Omerdić, Edin; Trslić, Petar; Kaknjo, Admir; Weir, Anthony; Rao, Muzaffar; Dooly, Gerard; Toal, Daniel (MDPI, 2020)

The overall control system for an open-frame Remotely Operated Vehicle (ROV) is typically built from three subsystems: guidance, navigation and control (GNC). The control allocation plays a vital role in the control ...
Ghost-UNet: an asymmetric encoder-decoder architecture for semantic segmentation From scratch

Kazerouni, Iman Abaspur; Dooly, Gerard; Toal, Daniel (IEEE Computer Society, 2021)

One of the most important key points in the intelligent transportation systems is scene understanding of the known and unknown surrounding environment to achieve a safe driving for smart mobile robots and cars. Semantic ...

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