WorldCat Identities

Moazzem, Shadia

Overview
Works: 7 works in 8 publications in 1 language and 8 library holdings
Roles: Author
Publication Timeline
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Most widely held works by Shadia Moazzem
Reduction of CO² emissions in coal-fired power plants for achieving a sustainable environment by Shadia Moazzem( )

2 editions published in 2012 in English and held by 2 WorldCat member libraries worldwide

"This study analysed mineral carbonation technology with the aim of integrating it into an existing coal-fired power plant."--Abstract
Assessment of energy recovery from carbonation process using mass and energy balance by Shadia Moazzem( )

1 edition published in 2011 in English and held by 1 WorldCat member library worldwide

Mineral carbonation technology, one of the carbon capture and storage (CCS) technologies, is mainly concerned with the reduction of harmful emissions of carbon dioxides (CO2) to the atmosphere. However, carbonation system requires extra energy for pretreatment of the feed stocks including mining, transport, grinding and activation (when necessary), disposal of carbonates and byproducts, etc. This extra energy is called energy penalty. Despite this energy penalty there is a growing interest in carbonation technology because of its several benefits (such as abundance of metal oxide bearing material, exothermic reaction, safe storage of CO2 in a stable solid form, etc) over other CCS technologies. In this study the mass and energy balance analysis of the carbonation system using Matlab/Simulink software is presented and discussed in order to assess the energy recovery from the carbonation products and reduction of CO2 emissions. Energy gain from the carbonation reaction is calculated with an aim that it will contribute to the self-sufficiency of energy requirement of the carbonation system. This may improve the overall efficiency of the power plant too. It is found from this study that at carbonation temperature below 423.15° K (150 oC), the carbonation system is energy self-sufficient with exothermic heat gain and no heat recovery is needed from the carbonation products. However, the energy recovery from the products is required when carbonation occurs at above 423.15° K
Bio diesel against petroleum diesel : assessment of internal combustion engine performance and emissions by Peter McCarthy( )

1 edition published in 2010 in English and held by 1 WorldCat member library worldwide

This study investigates the need for bio-diesel and analyse bio-diesel against its counterpart being petroleum diesel. Both, performance and emissions of an internal combustion engine (ICE) using bio-diesel and bio-diesel blends are experimentally measured for two types of bio-diesel, type A - 80% tallow (beef, pork and sheep) and 20% canola oil methyl ester and type B - 70% chicken tallow and 30% waste cooking oil methyl ester. The test was done according to the ISO 8178 standard for emissions analysis of off-road engines. Kubota V3300 indirect injection, four cylinders naturally aspirated ICE was used to evaluate the performance and emissions of test fuels. Bio-diesel blends of B5, B10, B20, B50 and B100 are analysed. Bio-diesel properties such as density, viscosity, calorific value, and cetane number, etc have significant impact on performances and emissions. This study found that the performance of both biodiesel fuels reduces with increasing blend ratio, with a torque decrease of 5% for both biodiesels, and a fuel consumption increase of 7-10% over the ISO 8178 test cycle. This can be attributed to the lower energy content of biodiesel when compared with petroleum diesel. The emissions results were varied for the biodiesels, as some emissions were found to be higher than petroleum diesel, while some were lower. NOx emissions decreased by 14% for biodiesel A, but increased by 17% for biodiesel B. CO emissions were significantly reduced for both biodiesel A and B, with reductions of 58% and 27% respectively. Hydrocarbon (HC) emissions were found to increase with increasing blend ratio for both biodiesels, with an increase of 10% for biodiesel A and 80% for biodiesel B. Lastly, CO2 emissions were found to increase, with an increase of 6% for biodiesel A and 18% for biodiesel B. The study clearly found that each of the biodiesels has different scale ofeffect on ICE performance and emissions and hence, it is essential to test biodiesels before it can be recommended for commercial use in ICE. However, the study indicates that although performance is reduced when using biodiesel fuels the two major pollutant gas emissions are generally reduced when using biodiesel, therefore biodiesel can be considered as more environmentally friendly, secure and renewable approach of obtaining energy in the long run
An evaluation of CO2 emission reduction through carbonation technology by Shadia Moazzem( )

1 edition published in 2011 in English and held by 1 WorldCat member library worldwide

Researchers around the world are studying on different carbon capture and storage (CCS) options to reduce global warming by reducing CO2 emission from various sources. Among all these options carbonation technology has some promising benefits over other technologies such as exothermic heat, availability of feed stocks, safe carbonated product and value added product and by-product, etc. In carbonation technology CO2 chemically reacts with Ca/Mg bearing oxides or hydroxides and transformed into an environmentally safe solid carbonate materials. This technology has attracted attention of several researchers around the world and scientists of Albany ResearchCentre, USA have been working on it for few years. Recently aproject has been established in Newcastle, Australia to set up acarbonation plant. Considering the potential benefits mentionedabove, the prospects of carbonation technology to reduce globalwarming by reducing CO2 emission have been reviewed, discussedand evaluated in this study
Performance of spinning plants with facility layout design by Shadia Moazzem( )

1 edition published in 2010 in English and held by 1 WorldCat member library worldwide

Yarn spinning industry occupies a great volume amongst all other industries around the world due to the significant demand of yarn and thread for fabric manufacturing for apparels. Substantial amount of research works have been performed in order to improve the spinning mills performances. Most of these research works have been done concentrating on parameters of spinning processes. Obviously plant layout design is the major factor influencing performances of a spinning plant along-with other parameters. In this paper an attempt has been made to provide information and innovative facilities lay out design as well as performances of a spinning plant. This may be beneficial for design and installation works of new as well as existing spinning plants with better economic sustainability
Carbon di oxide (CO2) emissions : an overview of the possible technologies for reducing CO2 emissions in power plants by Shadia Moazzem( )

1 edition published in 2010 in English and held by 1 WorldCat member library worldwide

Emissions of CO2 from different sources such as fuel combustion, industrial and agricultural processes, etc are the main contributor for global warming. Therefore, controlling CO2 emissions with an appropriate technology is vital to reduce global warming. Although various CO2 capture technologies are available, some of them are in pilot plant stage and some are in developing stage. In this study post combustion technologies such as chemical absorption, pressure swing adsorption (PSA), gas separation membranes, mineral carbonation, etc, are reviewed and their pros and cons are discussed. Among these technologies, the chemical absorption process and membrane process for mitigating CO2 emission are costly and more energy consuming. Cost and energy reduction can be achieved by improving these technologies using modified absorbent, catalyst, suitable combination of membrane and solvent, enhancing reaction kinetics, combining different processes, etc. Processes including PSA and mineral carbonation are relatively new processes. Mineral carbonation is a promising technology for capturing CO2 compared to other processes though it is still in the developing stage. This study aims to identify an appropriate technology for reducing CO2 emissions from coal fired power plants. The study will provide a better understanding of the CO2 reduction technologies for achieving sustainable environment and resource processing
A review on boiler deposition/foulage prevention and removal techniques for power plant by N Hare( )

1 edition published in 2010 in English and held by 1 WorldCat member library worldwide

Burning coal in power plants produces significant amounts of deposits like fouling and slagging on boiler surfaces which contributes to the overall poor performance of the power plants (by reducing electricity generation capacity, decreasing boiler efficiency and increasing overall maintenance cost). Recent research and development on boiler fouling and slagging problems, with the current preventative measures and technologies available to minimise this deposition, is reviewed and discussed in this paper. There are several technologies to minimise the deposition problems in boilers, such as pulse detonation wave technology, intelligent shoot blower, anti-fouling coatings, chemical treatment technology, etc. The effectiveness of these technologies to prevent foulage problems is addressed, and concluding remarks and recommendations are drawn according to their effectiveness
 
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