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Dissertations / Theses on the topic 'Thermo-economic'

Author: Grafiati

Published: 4 June 2021

Last updated: 26 July 2025

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1

Betelmal, Entesar Hassan. "Thermo-economic study of gas turbine-absorption cogeneration cycle." Thesis, University of Newcastle Upon Tyne, 2005. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.417545.

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2

Udiaver, Rahul Gaurang. "Thermo-economic study and optimization of solar hydrogen generation plants." Thesis, KTH, Kraft- och värmeteknologi, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-149942.

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The main goal of this project is to calculate the maximum theoretical efficiencies of a solar hydrogen generation plant and also to carry out economic analysis of the solar and chemical plants. The final combined results would comprise the optimized values of the annual hydrogen production with respect to the overall costs. Another area of investigation is the effect of temperature and partial pressure of oxygen in the reduction of the chemical reactor. This will lead to the optimal values of temperature and oxygen partial pressure, hence determining maximal hydrogen production. The redox pair

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3

Russ, Matthias. "Elaboration of Thermo-Economic Models of Solar Gas-Turbine Power Plants." Thesis, KTH, Energiteknik, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-72483.

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4

Pascovici, Daniele Samuel. "Thermo economic and risk analysis for advanced long-range aero engines." Thesis, Cranfield University, 2008. http://hdl.handle.net/1826/4090.

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To conceive and assess engines with minimum global warming impact and lowest cost of ownership in a variety of emission legislation scenarios, emissions taxation policies, fiscal and Air Traffic Management environments a Techno economic and Environmental Risk Assessment (TERA) model is needed. In the first part of this thesis an approach is presented to estimate the cost of maintenance and the direct operating costs of turbofan engines of equivalent thrust rating, both for long and short range applications. The three advanced types of turbofan engines analysed here are a direct drive three spo

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5

Kizikoglu, Atahan Riza. "Thermo-Economic Analysis of Solar Cooling/Heating Systems for Mediterranean Climates." Thesis, KTH, Kraft- och värmeteknologi, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-161065.

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This study focuses on the efficient use of solar energy for a certain region in the Mediterranean basin. Solar thermal energy becomes increasingly popular and the available solar market is investigated with the aim of selecting and assessing a pilot region for a promising solar application. The work herein focuses on estimating the potential of three different 100% solar-driven integrated systems to cover the entire cooling and heating demand of a selected single family house solely by solar energy. The three different alternative systems are presented and examined in detail for the actual cas

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6

Potgieter, Johan. "Thermo-economic analysis of a french fries processing plant at Lambert's Bay." Thesis, Stellenbosch : University of Stellenbosch, 2004. http://hdl.handle.net/10019.1/16412.

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Thesis (MScIng)--University of Stellenbosch, 2004.<br>ENGLISH ABSTRACT: In the literature study energy efficiency is discussed in general, as well as certain critical areas of importance to this study. In addition, measuring and monitoring equipment, and energy inefficiencies in steam and refrigeration systems are reviewed briefly. In the energy analysis, an energy audit strategy is discussed in general. A walkthrough audit of the plant was conducted with specific focus on visible losses in the steam, refrigeration and production line systems. An energy analysis, as discussed in Chapter 3

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7

Siefert, Nicholas S. "Experimental and Thermo-Economic Analysis of Catalytic Gasification and Fuel Cell Power Systems." Research Showcase @ CMU, 2013. http://repository.cmu.edu/dissertations/255.

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This dissertation presents a comprehensive experimental and thermo-economic evaluation of coal gasifiers with in-situ carbon capture for generating high-hydrogen and high-methane content syngas for solid oxide fuel cell power plants. The goals of this thesis were the following: to conduct lab-scale experiments on catalytic coal gasification with in situ capture of acid gases, such as CO2 and H2S; to use the experimental results to model a commercial scale catalytic, in situ capture, coal/waste gasifiers; to integrates this gasifier with a solid oxide fuel cell (SOFC) system and to an build eco

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8

Shimeles, Surafel. "Thermo-economic Analysis of Retrofitting an Existing Coal-Fired Power Plant with Solar Heat." Thesis, Högskolan i Gävle, Avdelningen för bygg- energi- och miljöteknik, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:hig:diva-17216.

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At a time when global environmental change is posing a growing challenge to the world’s economy and creating uncertainties to livelihood of its inhabitants, Coal thermal power plants are under pressure to meet stringent environmental regulations into achieving worldwide set millennial goals for mitigating the effect of emission gases on the atmosphere. Owing to its abundance, it is unlikely to see the use of coal completely missing from the global energy mix within the next hundred years to come. While innovative emission reduction technologies are evolving for the better, trendy technological

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9

El-Sharif, Abdulhamid. "A thermo-economic model and a simulation analysis of a solar hydrogen system using IPSEpro." Thesis, University of Newcastle upon Tyne, 2013. http://hdl.handle.net/10443/3234.

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The high growth of world population and modern lifestyle are increasing the world’s energy consumption and fossil fuel depletion, as well as increasing environmental and economic adverse impacts. This concern is encouraging scientists and governments to create more reliable, long-lasting and environmentally benign energy sources. Renewable energy sources, particularly solar energy, are nowadays suggested as being one of the main alternative and future sources of energy to traditional fossil fuel sources. Nevertheless, the main challenge in utilizing solar energy is its high utilization cost an

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10

Rönnberg, Arvid. "Evaluation and Sensitivity Analysis of Cost Calculations in the Thermo-Economic Modeling of CSP Plants." Thesis, KTH, Kraft- och värmeteknologi, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-176876.

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Thermo-economic modeling refers to the process of estimating the cost and performance of a power plant using cost oriented equations and reference data. In this thesis the fundamentals of cost and performance modeling as well as sensitivity analysis is researched and applied to an existing model in the field of concentrated solar power. The thesis aims to isolate the sources of possible errors and presents comprehensible methods of minimizing the sensitivity these give rise to. The extensive literature study provides the knowledge and methodologies necessary to perform an evaluation of a compu

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11

Lantz, Martin. "Azelio’s Thermal Battery for Combined Heat and Power : A Thermo-economic and Market Research Study." Thesis, KTH, Skolan för industriell teknik och management (ITM), 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-280470.

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The objective of this thesis was to assess the market opportunities for two novel Carnot battery system solutions, one supplying power and low temperature heat as well as a system supplying medium temperature heat exclusively. To fulfill the objective, a methodology was developed and implemented to investigate the market potential, further two techno-economic models were developed and utilized to investigate the performance of such Carnot battery solutions. Based on the market review four industrial sectors were identified as most interesting and the geographical scope was confined to Europe.

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12

Aldubyan, Mohammad Hasan. "Thermo-Economic Study of Hybrid Photovoltaic-Thermal (PVT) Solar Collectors Combined with Borehole Thermal Energy Storage Systems." University of Dayton / OhioLINK, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=dayton1493243575479443.

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13

Desai, Ranjit. "Thermo-Economic Analysis of a Solar Thermal Power Plant with a Central Tower Receiver for Direct Steam Generation." Thesis, KTH, Kraft- och värmeteknologi, 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-131764.

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14

Hossin, Khaled. "Dynamic modelling and thermo-economic optimization of a small-scale hybrid solar/biomass Organic Rankine Cycle power system." Thesis, Northumbria University, 2017. http://nrl.northumbria.ac.uk/36243/.

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The use of solar thermal energy to drive both large and small scale power generation units is one of the prospective solutions to meet the dramatic increase in the global energy demand and tackle the environmental problems caused by fossil fuels. New energy conversion technologies need to be developed or improved in order to enhance their performance in conversion of renewable energy. The Organic Rankine Cycle (ORC) is considered as one of the most promising technologies in the field of small and medium scale combined heat and power (CHP) systems due to its ability to efficiently recover low-g

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15

Bergström, Jarl, and Conny Franzon. "Thermo-economic optimization of a combined heat and power plant in Sweden : A case study at Lidköping power plant." Thesis, Blekinge Tekniska Högskola, Institutionen för industriell ekonomi, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:bth-20766.

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Energy production in power plants comes with both high costs and turnover whereas variations in the production strategy—that is, which boilers, coolers, or generators that should be running—have big impact on the economic result. This is especially true for a combined heat and power (CHP) plant where the production of district heating and electricity is linked, thus allowing for a higher flexibility in the production strategy and potential of increasing the revenue. Previous research states that thermo-economic optimization can have a great impact on economic result of power plants, but every

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16

CAMPO, GIUSEPPE. "Effects of thermo-alkali pre-treatments on WAS and technical-economic assessment for their applicability in the largest Italian WWTP." Doctoral thesis, Politecnico di Torino, 2019. http://hdl.handle.net/11583/2736792.

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17

Peris, Pérez Bernardo. "Thermo-economic assessment of small-scale organic Rankine cycle for low-grade industrial waste heat recovery based on an experimental application." Doctoral thesis, Universitat Jaume I, 2017. http://hdl.handle.net/10803/456991.

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This thesis focuses on the use of small-scale Organic Rankine Cycles (ORC) to produce electricity from low-grade waste heat recovery of industrial processes. In particular, a thermo-economic (combination of thermodynamic and economic) optimization is conducted to achieve more cost-effective systems and, thus, to contribute to the ORC adoption in practical applications. As a novelty, this investigation is based on an experimental application case, which allows developing a comprehensive model of the system and its subsequent validation from actual data. Thereby, more realistic results are reach

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18

Rusev, Tihomir. "Comparative Study of Different Organic Rankine Cycle Models: Simulations and Thermo-Economic Analysis for a Gas Engine Waste Heat Recovery Application." Thesis, KTH, Kraft- och värmeteknologi, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-163706.

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Increasing the efficiency of conventional power plants is a crucial aspect in the quest of reducing the energy consumption of the world and to having sustainable energy systems in the future. Thus, within the scope of this thesis the possible efficiency improvements for the Wärtsilä 18V50DF model gas engine based combine power generation options are investigated by recovering waste heat of the engine via Organic Rankine cycle (ORC). In order to this, four different ORC models are simulated via Aspen Plus software and these models are optimized for different objective functions; power output a

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19

Gibson, Chanel Ann. "The Impact of Australia’s Carbon Price on the Selection and Optimisation of Prime Movers in Combined Heat and Power Systems Using a Thermo-economic Approach." Thesis, The University of Sydney, 2015. http://hdl.handle.net/2123/13666.

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The debate over the most efficient way to manage the adversities of climate change has intensified over recent years. Regardless of whether there are formal emissions reduction policies in place, such as carbon taxes or emissions trading schemes, there is a clear focus on the promotion of less emissions intensive activities, particularly in the area of energy generation. Combined heat and power (CHP) systems are chosen for study, as they are a proven technology that is known historically for their low environmental impact in the energy generation sector. In this thesis, a methodology has been

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20

Ellakany, Farid. "Enhancing the Thermo-Economic Performance of a Direct Steam Generation Solar Tower Power Plant through the Implementation of Steam Flow Control Strategies for Flexible Operation." Thesis, KTH, Kraft- och värmeteknologi, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-150112.

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Above 90% of the current installed concentrating solar power plants are based on conventional steam-turbine cycles. The operation of steam turbines in these plants is distinctive when compared to traditional base-load power plants. The reason goes back to the intermittent nature of solar power which, in the absence of thermal energy storage or a back-up combustion boiler, forces plant operators to shut down the turbines during night time or at times of low solar radiation. Furthermore, such intermittency often leads to undesirable off-design turbine operating circumstances, either by load vari

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21

Wang, Ligang [Verfasser], George [Akademischer Betreuer] Tsatsaronis, André [Akademischer Betreuer] Bardow, Yongping [Akademischer Betreuer] Yang, George [Gutachter] Tsatsaronis, and André [Gutachter] Bardow. "Thermo-economic evaluation, optimization and synthesis of large-scale coal-fired power plants / Ligang Wang ; Gutachter: George Tsatsaronis, André Bardow ; George Tsatsaronis, André Bardow, Yongping Yang." Berlin : Technische Universität Berlin, 2016. http://d-nb.info/1156179602/34.

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22

Kalantiz, Nikolaos. "Thermo-economic modelling of micro-cogeneration systems : system design for sustainable power decentralization by multi-physics system modelling and micro-cogeneration systems performance analysis for the UK domestic housing sector." Thesis, University of Bradford, 2015. http://hdl.handle.net/10454/14406.

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Micro-cogeneration is one of the technologies promoted as a response to the global call for the reduction of carbon emissions. Due to its recent application in the residential sector, the implications of its usage have not yet been fully explored, while at the same time, the available simulation tools are not designed for conducting research that focuses on the study of this technology. This thesis develops a virtual prototyping environment, using a dynamic multi-physics simulation tool. The model based procedure in its current form focuses on ICE based micro-CHP systems. In the process of dev

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23

Kalantzis, Nikolaos. "Thermo-Economic Modelling of Micro-Cogeneration Systems System Design for Sustainable Power Decentralization by Multi-Physics System Modelling and Micro-Cogeneration Systems Performance Analysis for the UK Domestic Housing Sector." Thesis, University of Bradford, 2015. http://hdl.handle.net/10454/14406.

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Micro-cogeneration is one of the technologies promoted as a response to the global call for the reduction of carbon emissions. Due to its recent application in the residential sector, the implications of its usage have not yet been fully explored, while at the same time, the available simulation tools are not designed for conducting research that focuses on the study of this technology. This thesis develops a virtual prototyping environment, using a dynamic multi-physics simulation tool. The model based procedure in its current form focuses on ICE based micro-CHP systems. In the proces

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24

Southon, Michael Carl. "Performance and cost evaluation to inform the design and implementation of Organic Rankine Cycles in New Zealand." Thesis, University of Canterbury. Mechanical Engineering, 2015. http://hdl.handle.net/10092/10728.

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The aim of this thesis is to evaluate ORC systems and technologies from an energy and economic perspective. ORC systems are a growing renewable electricity generation technology, but New Zealand has limited local skills and expertise for identifying ORC resource opportunities and subsequently developing suitable technologies at low cost. For this reason, this thesis researches ORC technology, resource types, and international development, with the aim to determine guidelines for how to cost-effectively develop ORC systems, and to make recommendations applicable to furthering their development

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25

Pretorius, Johannes Petrus. "Optimization and control of a large-scale solar chimney power plant." Thesis, Stellenbosch : University of Stellenbosch, 2007. http://hdl.handle.net/10019.1/349.

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Thesis (PhD (Mechanical and Mechatronic Engineering))-- University of Stellenbosch, 2007.<br>ENGLISH ABSTRACT: The dissertation builds on previous research (Pretorius, 2004) and investigates the optimization and control of a large-scale solar chimney power plant. Performance results are based on a reference location near Sishen in South Africa and a so-called reference solar chimney power plant, with a 5000 m collector diameter and a 1000 m high, 210 m diameter chimney. The numerical simulation model is refined and used to perform a sensitivity analysis on the most prominent operating and tech

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26

Yoo, Juhyun. "Technical and economical assessment of thermo-mechanical extrusion pretreatment for cellulosic ethanol production." Diss., Kansas State University, 2011. http://hdl.handle.net/2097/9190.

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Doctor of Philosophy<br>Department of Grain Science and Industry<br>Sajid Alavi<br>The Renewable Fuel Standard (RFS) in the Energy Independence and Security Act of 2007 has set the goal of 36 billion gallons of annual ethanol production in the U.S. by 2022, which is equivalent to 17.5% of the current gasoline consumption in the U.S. However, corn ethanol is expected to plateau at a level of 7.3% of current gasoline consumption on an energy-equivalent basis. Thus, it is essential to utilize a variety of substrates including lignocellulosic biomass from perennial energy crops such as switch gras

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27

Tariello, Francesco. "Thermo-economic analysis of solar heating and cooling systems." Tesi di dottorato, 2015. http://www.fedoa.unina.it/10469/1/Tariello_Francesco_27.pdf.

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During last years, air conditioning demand has spread, both in the commercial and the residential sector. This caused a sensible increase in primary energy consumption. The innovative desiccant-based air handling units are a very interesting solution for air conditioning of buildings as they operate with low temperature thermal energy, such as waste heat recovered from a microcogenerator or especially solar energy. Solar radiation is widely available in summer and simultaneously there are the greatest demands for cooling, but solar energy can be used advantageously also to balance the winter

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28

GAURAV. "THERMO-ECONOMIC ANALYSIS OF A COMBINED CYCLE THERMAL POWER PLANT." Thesis, 2022. http://dspace.dtu.ac.in:8080/jspui/handle/repository/19299.

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Energy drives modern growth. All systems rely on it. Historiography shows that countries with limited energy grow more slowly. Increase energy availability. Our nation is similar. Too long, our nation has been energy-deficient. We must alter this. Scientists worldwide are working to increase energy supplies. New energy-creation strategies are investigated constantly. Globally, renewable energy development is accelerated. Researchers are reducing reliance on fossil fuels for power. Sustainability of electricity production is also a concern. If natural resources aren't used properly

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29

Liu, Zelong. "Thermo-economic optimization of a heat recovery steam generator (HRSG) system using Tabu search." Thesis, 2010. http://hdl.handle.net/2152/ETD-UT-2010-05-811.

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Heat Recovery Steam Generator (HRSG) systems in conjunction with a primary gas turbine and a secondary steam turbine can provide advanced modern power generation with high thermal efficiency at low cost. To achieve such low cost efficiencies, near optimal settings of parameters of the HRSG must be employed. Unfortunately, current approaches to obtaining such parameter settings are very limited. The published literature associated with the Tabu Search (TS) metaheuristic has shown conclusively that it is a powerful methodology for the solution of very challenging large practical combinatorial op

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30

Nikolakakis, Thomas. "A Mixed Integer Linear Unit Commitment and Economic Dispatch Model for Thermo-Electric and Variable Renewable Energy Generators With Compressed Air Energy Storage." Thesis, 2017. https://doi.org/10.7916/D8CN78M1.

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The objective of this PhD thesis is to create a Unit Commitment and Economic Dispatch (UCED) modelling tool that can used to simulate the deterministic performance of a power system with thermal and renewable generators and energy storage technologies. The model was formulated using mixed integer programing (MIP) on GAMS interface. A robust commercial solver by IBM (CPLEX) is used as solver. Emphasis on the development of the tool has been given on the following aspects. a) Technical impacts of Variable Renewable Energy (VRE) integration. The UCED model developed in this thesis is a high

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