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Articles 1 - 4 of 4
Full-Text Articles in Mechanical Engineering
A Techno-Economic Analysis Of Wind Generation In Conjunction With Compressed Air Energy In The Integrated Single Electricity Market., Brendan Cleary
A Techno-Economic Analysis Of Wind Generation In Conjunction With Compressed Air Energy In The Integrated Single Electricity Market., Brendan Cleary
Doctoral
The Integrated Single Electricity Market (I-SEM) is the proposed wholesale electricity market for Ireland and it is intended to replace the current Single Electricity Market (SEM) by 2018. Subsequently, substantial modifications will be required to the SEM and this has led to significant uncertainty for stakeholders. The SEM currently features no forecast risk for renewables such as wind and there is no concept of balance responsibility. Under the I-SEM, wind generation will be exposed to forecast risk and the requirement to be balance responsible. The use of Compressed Air Energy Storage (CAES) could represent a better system configuration which would …
Optimised Integration Of Grid-Connected Renewable Energy Technologies For Domestic Application In Ireland, Zhe Li
Doctoral
The utilisation of renewable energy resources for electricity and thermal generation is extremely important in Ireland due to the lack of indigenous fossil fuel resources and the high dependence on imported fossil fuels. The release of environmentally-damaging greenhouse gases in the combustion of fossil fuels in electricity and thermal generation is also a major issue. In Ireland, the domestic dwelling is recognised as one of the biggest energy consumers. The use of renewable energy technologies to provide electricity, heating and hotwater can effectively offset the usage of fossil fuels. The aim of this research study was to develop a novel …
Modelling Of Biomass Gasification Integrated With A Solid Oxide Fuel Cell System, Wayne Doherty
Modelling Of Biomass Gasification Integrated With A Solid Oxide Fuel Cell System, Wayne Doherty
Doctoral
Biomass is of major interest as a renewable energy source in the context of climate change and energy security. Traditional biomass conversion technologies achieve low electrical efficiencies. Biomass gasification (BG) coupled with fuel cells offer higher efficiencies. Gasification is a process in which a carbonaceous fuel is converted to a combustible gas. It occurs when a controlled amount of oxidant is reacted at high temperatures with available carbon in a fuel within a gasifier. Two technologies (circulating fluidised bed air gasification and dual fluidised bed steam gasification) were modelled. Solid oxide fuel cells (SOFCs) are well suited to integration with …
Heating Effects Through Harmonic Distortion On Electric Cables In The Built Environment, Kevin O'Connell
Heating Effects Through Harmonic Distortion On Electric Cables In The Built Environment, Kevin O'Connell
Doctoral
Under ideal circumstances, electric power supply voltage and current waveforms should be sinusoidal. However, this is very seldom the case in the built environment, due to the proliferation of non-linear loads. Examples of non-linear loads are those containing switched mode power supplies, reactors and electronic rectifiers/inverters. Common devices such as personal computers, fluorescent lighting, electric motors, variable speed drives, transformers and reactors and virtually all other electronic equipment are examples of non-linear loads. Non-linear loads are the norm in the built environment rather than the exception. Such loads produce complex current and voltage waves and simple spectral analysis of these …