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Auteur : Grafiati
Publié le 11 septembre 2023

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1

Aygun, Hakan, Mehmet E. Cilgin et Onder Turan. « Exergo-economic cost accounting for PW4000 turbofan engine and its components ». MATEC Web of Conferences 314 (2020) : 02003. http://dx.doi.org/10.1051/matecconf/202031402003.

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You The several series of PW4000 high bypass turbofan engine have used so far in many aircrafts. These commercial engines have played a crucial role on passenger and freight transportations. Namely, these engines are closely related to the environment impacts and security of energy supply. In this article, exergoeconomic analysis which is useful tool to investigate existing potential for improvement of the a system efficiency were carried out. The assesment, design and optimization of energy consuming systems are performed by means of these analyses. Therefore, thermo-economic costs were assigned to existing exergetic values of PW400 engine. Also exergo-economic performance parameters were evaluated. Finally, exergoeconomic deputy parameters were examined to understand relations with exergo-economic parameters. Based on the results of exergo-economics analysis, for Fan and exhaust, specific thrust costs are estimated 5.7051 $/hkN and 68.45$/hkN respectively. Also exergo-economics factor of PW4000 is found 7.958 % , while relative cost difference is determined at highest rate with 24.458 % for combustion chamber . With examination relations between economic variables and exergo-economic performance parameters, the change between 0.6 and 1.2 $/kg in the fuel price leads to increase the exhaust and fan specific thrust costs with 82.4701 $/hkN and 5.4332 $/hkN respectively. It is expected that conclusions of this study are helpful to notify exergo-economic impact of PW4000 engine Also, it may be benchmarking for similar gas turbine engines.
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Vallis, Athanasios G., Theodoros C. Zannis, Evangelos V. Hristoforou, Elias A. Yfantis, Efthimios G. Pariotis, Dimitrios T. Hountalas et John S. Katsanis. « Design of Container Ship Main Engine Waste Heat Recovery Supercritical CO2 Cycles, Optimum Cycle Selection through Thermo-Economic Optimization with Genetic Algorithm and Its Exergo-Economic and Exergo-Environmental Analysis ». Energies 15, no 15 (26 juillet 2022) : 5398. http://dx.doi.org/10.3390/en15155398.

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In the present study, energy and exergy analyses of a simple supercritical, a split supercritical and a cascade supercritical CO2 cycle are conducted. The bottoming cycles are coupled with the main two-stroke diesel engine of a 6800 TEU container ship. An economic analysis is carried out to calculate the total capital cost of these installations. The functional parameters of these cycles are optimized to minimize the electricity production cost (EPC) using a genetic algorithm. Exergo-economic and exergo-environmental analyses are conducted to calculate the cost of the exergetic streams and various exergo-environmental parameters. A parametric analysis is performed for the optimum bottoming cycle to investigate the impact of ambient conditions on the energetic, exergetic, exergo-economic and exergo-environmental key performance indicators. The theoretical results of the integrated analysis showed that the installation and operation of a waste heat recovery optimized split supercritical CO2 cycle in a 6800 TEU container ship can generate almost 2 MW of additional electric power with a thermal efficiency of 14%, leading to high fuel and CO2 emission savings from auxiliary diesel generators and contributing to economically viable shipping decarbonization.
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Alibaba, Massomeh, Razieh Pourdarbani, Mohammad Hasan Khoshgoftar Manesh, Israel Herrera-Miranda, Iván Gallardo-Bernal et José Luis Hernández-Hernández. « Conventional and Advanced Exergy-Based Analysis of Hybrid Geothermal–Solar Power Plant Based on ORC Cycle ». Applied Sciences 10, no 15 (28 juillet 2020) : 5206. http://dx.doi.org/10.3390/app10155206.

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Today, as fossil fuels are depleted, renewable energy must be used to meet the needs of human beings. One of the renewable energy sources is undoubtedly the solar–geothermal power plant. In this paper, the conventional and advanced, exergo-environmental and exergo-economic analysis of a geothermal–solar hybrid power plant (SGHPP) based on an organic Rankin cycle (ORC) cycle is investigated. In this regard, at first, a conventional analysis was conducted on a standalone geothermal cycle (first mode), as well as a hybrid solar–geothermal cycle (second mode). The results of exergy destruction for simulating the standalone geothermal cycle showed that the ORC turbine with 1050 kW had the highest exergy destruction that was 38% of the total share of destruction. Then, the ORC condenser with 26% of the total share of exergy destruction was in second place. In the hybrid geothermal–solar cycle, the solar panel had the highest environmental impact and about 56% of the total share of exergy destruction. The ORC turbine had about 9% of all exergy destruction. The results of the advanced analysis of exergy in the standalone geothermal cycle showed that the avoidable exergy destruction of the condenser was the highest. In the hybrid geothermal–solar cycle, the solar panel, steam economizer and steam evaporator were ranked first to third from an avoidable exergy destruction perspective. The avoidable exergo-economic destruction of the evaporator and pump were higher than the other components. The hybrid geothermal–solar cycle, steam economizer, solar pane and steam evaporator were ranked first to third, respectively, and they could be modified. The avoidable exergo-environmental destruction of the ORC turbine and the ORC pump were the highest, respectively. In the hybrid geothermal–solar cycle, steam economizers, solar panel and steam evaporators had the highest avoidable exergy destruction, respectively. For the standalone geothermal cycle, the total endogenous exergy destruction and exogenous exergy destruction was 83.61% and 16.39%. Moreover, from an exergo-economic perspective, 89% of the total destruction rate was endogenous and 11% was exogenous. From an exergo-environmental perspective, 88.73% of the destruction rate was endogenous and 11.27% was exogenous. For the hybrid geothermal–solar cycle, the total endogenous and exogenous exergy destruction was 75.08% and 24.92%, respectively. Moreover, 81.82% of the exergo-economic destruction rate was endogenous and 18.82% was exogenous. From an exergo-environmental perspective, 81.19% of the exergy destruction was endogenous and 18.81% was exogenous.
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Khan, Muhammad Alam Zaib, Abdul Wahab, Kamran Khan, Naveed Ahmad et Muhammad Ali Kamran. « Energy, exergy, exergo-economic, enviro-economic, exergo-environmental, exergo-enviro-economic, sustainability and sensitivity (6E,2S) analysis on single slope solar still—An experimental study ». PLOS ONE 18, no 8 (24 août 2023) : e0290250. http://dx.doi.org/10.1371/journal.pone.0290250.

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Tackling water scarcity is a significant challenge due to the rapid increase in the global population, which is raising concern for the supply of fresh water. high demand of fresh water leading to a failure in meeting the demand for fresh water. This study aims to investigate the feasibility of an efficient single-slope solar still with an aluminum-finned plate absorber and internal and external reflectors to address water scarcity. Energy, exergy, economic and environmental analyses (6E) were undertaken to deeply analyze its impact on the environment. The maximum energy and exergy efficiency achieved was 60.19% and 21.57%, respectively, at a 2cm depth. The use of both external and internal reflectors assisted in the highest productivity of 7.02 liters. The cost of 0.033$/liter was obtained for a lifetime of 10 years for the optimal system. The payback time in terms of energy and exergy for the optimal system is 0.88 and 2.23 years, respectively. Furthermore, sustainability and sensitivity (2S) analysis were also performed to assess the system’s current and future feasibility. The total price for carbon dioxide mitigation during the solar still lifetime was $346.7, which represents the cost saving achieved with the installation of the optimal system.
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WU, S. Y., Y. R. LI et D. L. ZENG. « EXERGO-ECONOMIC PERFORMANCE EVALUATION ON LOW TEMPERATURE HEAT EXCHANGER ». International Journal of Modern Physics B 19, no 01n03 (30 janvier 2005) : 517–19. http://dx.doi.org/10.1142/s0217979205028943.

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Based on the exergo-economic analysis of low temperature heat exchanger heat transfer and flow process, a new exergo-economic criterion which is defined as the net profit per unit heat flux for cryogenic exergy recovery low temperature heat exchangers is put forward. The application of criterion is illustrated by the evaluation of down-flow, counter-flow and cross-flow low temperature heat exchangers performance.
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Giusti, E., L. Ciappi, P. Ungar, C. Zuffi, D. Fiaschi, G. Manfrida et L. Talluri. « Exergo-economic and exergo-environmental analysis of a binary geothermal power plant with solar boosting ». Journal of Physics : Conference Series 2385, no 1 (1 décembre 2022) : 012124. http://dx.doi.org/10.1088/1742-6596/2385/1/012124.

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Abstract The exploitation of renewable energies is a solution to the energy, economic and environmental issues related to the massive use of fossil resources. Thus, investing in renewable technologies is essential to achieve the carbon-neutral scenario within 2050. In this framework, geothermal energy may have a key role. In particular, power plants with a closed binary cycle are suitable for harnessing geothermal resources with low and medium enthalpy levels. They are prone to be integrated with other renewable devices to increase the global power output. Geothermal fluid can be drawn constantly from underground throughout the day and seasons. Conversely, the availability and intensity of solar energy depend on weather conditions and the time of year. In Italy, geothermal energy is currently harvested for continuous electricity generation, while solar energy is mainly used for photovoltaic generation. For small-to-medium size plants, rated between 5 and 20 MWe, the geothermal and thermodynamic solar hybridization may lead to relevant benefits for the economic competitiveness regarding separate photovoltaic or thermodynamic solar systems. This article aims to investigate the economic and environmental aspects of geothermal power plants with a closed binary cycle coupled with a topper cycle fed by linear parabolic solar collectors. The system operation in both design and off-design conditions was analysed, and exergo-economic and exergo-environmental simulations were conducted. The application site was selected near Torre Alfina (Italy). It has a water-dominant reservoir with a pressure of 44 bar, a temperature of 140 °C, and content of non-condensable gases (NCGs) approximately equal to 2% by weight. At the design point, the net power is 8.4 MW and the first and second principle efficiencies are 9.31% and 18.45%, respectively. The exergo-economic and exergo-environmental analyses indicate that the components with the highest economic and environmental impact are the condenser, the field of solar collectors, the evaporator, and the low-pressure turbine. The levelized cost of electricity (LCOE) is equal to 14.19 c€/kWh.
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Talluri, Lorenzo, Giampaolo Manfrida et Lorenzo Ciappi. « Exergo-economic assessment of OTEC power generation ». E3S Web of Conferences 238 (2021) : 01015. http://dx.doi.org/10.1051/e3sconf/202123801015.

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Ocean Thermal Energy Conversion is an important renewable energy technology aimed at harvesting the large energy resources connected to the temperature gradient between shallow and deep ocean waters, mainly in the tropical region. After the first small-size demonstrators, the current technology is focused on the use of Organic Rankine Cycles, which are suitable for operating with very low temperatures of the resource. With respect to other applications of binary cycles, a large fraction of the output power is consumed for harvesting the resource – that is, in the case of OTEC, for pumping the cold and hot water resource. An exergy analysis of the process (including thermodynamic model of the power cycle as well as heat transfer and friction modelling of the primary resource circuit) was developed and applied to determine optimal conditions (for output power and for exergy efficiency). A parametric analysis examining the main design constraints (temperature range of the condenser and mass flow ratio of hot and cold resource flows) is performed. The cost of power equipment is evaluated applying equipment cost correlations, and an exergo-economic analysis is performed. The results allow to calculate the production cost of electricity and its progressive build-up across the conversion process. A sensitivity analysis with respect to the main design variables is performed.
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Kallio, Sonja, et Monica Siroux. « Exergy and Exergy-Economic Approach to Evaluate Hybrid Renewable Energy Systems in Buildings ». Energies 16, no 3 (17 janvier 2023) : 1029. http://dx.doi.org/10.3390/en16031029.

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Hybrid renewable energy systems (HRES) combine two or more renewable energy systems and are an interesting solution for decentralized renewable energy generation. The exergy and exergo-economic approach have proven to be useful methods to analyze hybrid renewable energy systems. The aim of this paper is to present a review of exergy and exergy-economic approaches to evaluate hybrid renewable energy systems in buildings. In the first part of the paper, the methodology of the exergy and exergo-economic analysis is introduced as well as the main performance indicators. The influence of the reference environment is analyzed, and results show that the selection of the reference environment has a high impact on the results of the exergy analysis. In the last part of the paper, different literature studies based on exergy and exergo-economic analysis applied to the photovoltaic-thermal collectors, fuel-fired micro-cogeneration systems and hybrid renewable energy systems are reviewed. It is shown that the dynamic exergy analysis is the best way to evaluate hybrid renewable energy systems if they are operating under a dynamic environment caused by climatic conditions and/or energy demand.
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Valencia Ochoa, Guillermo, Jhan Piero Rojas et Jorge Duarte Forero. « Advance Exergo-Economic Analysis of a Waste Heat Recovery System Using ORC for a Bottoming Natural Gas Engine ». Energies 13, no 1 (5 janvier 2020) : 267. http://dx.doi.org/10.3390/en13010267.

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This manuscript presents an advanced exergo-economic analysis of a waste heat recovery system based on the organic Rankine cycle from the exhaust gases of an internal combustion engine. Different operating conditions were established in order to find the exergy destroyed values in the components and the desegregation of them, as well as the rate of fuel exergy, product exergy, and loss exergy. The component with the highest exergy destroyed values was heat exchanger 1, which is a shell and tube equipment with the highest mean temperature difference in the thermal cycle. However, the values of the fuel cost rate (47.85 USD/GJ) and the product cost rate (197.65 USD/GJ) revealed the organic fluid pump (pump 2) as the device with the main thermo-economic opportunity of improvement, with an exergo-economic factor greater than 91%. In addition, the component with the highest investment costs was the heat exchanger 1 with a value of 2.769 USD/h, which means advanced exergo-economic analysis is a powerful method to identify the correct allocation of the irreversibility and highest cost, and the real potential for improvement is not linked to the interaction between components but to the same component being studied.
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Fiaschi, Daniele, Giampaolo Manfrida, Karolina Petela, Federico Rossi, Adalgisa Sinicropi et Lorenzo Talluri. « Exergo-Economic and Environmental Analysis of a Solar Integrated Thermo-Electric Storage ». Energies 13, no 13 (6 juillet 2020) : 3484. http://dx.doi.org/10.3390/en13133484.

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Renewable energies are often subject to stochastic resources and daily cycles. Energy storage systems are consequently applied to provide a solution for the mismatch between power production possibility and its utilization period. In this study, a solar integrated thermo-electric energy storage (S-TEES) is analyzed both from an economic and environmental point of view. The analyzed power plant with energy storage includes three main cycles, a supercritical CO2 power cycle, a heat pump and a refrigeration cycle, indirectly connected by sensible heat storages. The hot reservoir is pressurized water at 120/160 °C, while the cold reservoir is a mixture of water and ethylene glycol, maintained at −10/−20 °C. Additionally, the power cycle’s evaporator section rests on a solar-heated intermediate temperature (95/40 °C) heat reservoir. Exergo-economic and exergo-environmental analyses are performed to identify the most critical components of the system and to obtain the levelized cost of electricity (LCOE), as well as the environmental indicators of the system. Both economic and environmental analyses revealed that solar energy converting devices are burdened with the highest impact indicators. According to the results of exergo-economic analysis, it turned out that average annual LCOE of S-TEES can be more than two times higher than the regular electricity prices. However, the true features of the S-TEES system should be only fully assessed if the economic results are balanced with environmental analysis. Life cycle assessment (LCA) revealed that the proposed S-TEES system has about two times lower environmental impact than referential hydrogen storage systems compared in the study.
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Le Goff, P., et J. M. Hornut. « Exergy Analysis and Exergo-Economic Optimization of Industrial Processes ». Revue de l'Institut Français du Pétrole 53, no 1 (janvier 1998) : 99–102. http://dx.doi.org/10.2516/ogst:1998011.

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Lamas, Wendell de Queiróz. « Exergo-economic analysis of a typical wind power system ». Energy 140 (décembre 2017) : 1173–81. http://dx.doi.org/10.1016/j.energy.2017.09.020.

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Koşar, Ali. « Exergo-economic analysis of micro pin fin heat sinks ». International Journal of Energy Research 35, no 11 (26 juillet 2010) : 1004–13. http://dx.doi.org/10.1002/er.1751.

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Saxena, Prakash, et K. S. Reddy. « Exergo-economic analysis of parabolic trough integrated cogeneration power plant ». International Journal of Exergy 26, no 1/2 (2018) : 41. http://dx.doi.org/10.1504/ijex.2018.092502.

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Saxena, Prakash, et K. S. Reddy. « Exergo-economic analysis of parabolic trough integrated cogeneration power plant ». International Journal of Exergy 26, no 1/2 (2018) : 41. http://dx.doi.org/10.1504/ijex.2018.10014023.

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Basta, Giuseppe, Nicoletta Meloni, Francesco Poli, Lorenzo Talluri et Giampaolo Manfrida. « Energy, Exergy and Exergo-Economic Analysis of an OTEC Power Plant Utilizing Kalina Cycle ». Global Journal of Energy Technology Research Updates 8 (28 décembre 2021) : 1–18. http://dx.doi.org/10.15377/2409-5818.2021.08.1.

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This study aims to analyse an Ocean Thermal Energy Conversion (OTEC) system through the use of a Kalina Cycle (KC), having a water-ammonia mixture as a working fluid. KC represents a technology capable of exploiting the thermal gap of ocean water. This system was then compared with OTEC systems, which exploit ammonia, R134A and butane-pentane mixture as working fluid. The comparison was carried on through energy analysis, exergetic analysis, and exergo-economic analysis using the EES (Engineering Equation Solver) software. For each case study, cost rates and auxiliary equations were evaluated for all components and the mass flow rate and unit exergy cost for each stream. The results showed that the KC with water-ammonia as working fluid achieves the best exergo-economic performance among the examined cycles. The cost of electricity produced through KC using water - ammonia mixture was found to be 26,66 c€/kWh. The thermal efficiency and the exergetic efficiency were calculated and the withdrawal depth of ocean water was considered. The efficiencies resulted to be 3.68% for the thermal efficiency and 95.96% for the exergetic efficiency.
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Mevada, Dinesh, Hitesh Panchal et Kishor Kumar Sadasivuni. « Investigation on evacuated tubes coupled solar still with condenser and fins : Experimental, exergo-economic and exergo-environment analysis ». Case Studies in Thermal Engineering 27 (octobre 2021) : 101217. http://dx.doi.org/10.1016/j.csite.2021.101217.

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Shoeibi, Shahin, Nader Rahbar, Ahad Abedini Esfahlani et Hadi Kargarsharifabad. « A comprehensive review of Enviro-Exergo-economic analysis of solar stills ». Renewable and Sustainable Energy Reviews 149 (octobre 2021) : 111404. http://dx.doi.org/10.1016/j.rser.2021.111404.

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Mondal, P., et S. Ghosh. « Externally fired biomass gasification-based combined cycle plant : exergo-economic analysis ». International Journal of Exergy 20, no 4 (2016) : 496. http://dx.doi.org/10.1504/ijex.2016.078097.

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Alibaba, Massomeh, Razieh Pourdarbani, Mohammad Hasan Khoshgoftar Manesh, Guillermo Valencia Ochoa et Jorge Duarte Forero. « Thermodynamic, exergo-economic and exergo-environmental analysis of hybrid geothermal-solar power plant based on ORC cycle using emergy concept ». Heliyon 6, no 4 (avril 2020) : e03758. http://dx.doi.org/10.1016/j.heliyon.2020.e03758.

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Siddiqui, F. R., M. A. I. El-Shaarawi et S. A. M. Said. « Exergo-economic analysis of a solar driven hybrid storage absorption refrigeration cycle ». Energy Conversion and Management 80 (avril 2014) : 165–72. http://dx.doi.org/10.1016/j.enconman.2014.01.029.

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Talluri, Lorenzo, Giampaolo Manfrida et Daniele Fiaschi. « Thermoelectric energy storage with geothermal heat integration – Exergy and exergo-economic analysis ». Energy Conversion and Management 199 (novembre 2019) : 111883. http://dx.doi.org/10.1016/j.enconman.2019.111883.

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Haroon, Muhammad, Nadeem Ahmed Sheikh, Abubakr Ayub, Rasikh Tariq, Farooq Sher, Aklilu Tesfamichael Baheta et Muhammad Imran. « Exergetic, Economic and Exergo-Environmental Analysis of Bottoming Power Cycles Operating with CO2-Based Binary Mixture ». Energies 13, no 19 (29 septembre 2020) : 5080. http://dx.doi.org/10.3390/en13195080.

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This study focused on investigating the bottoming power cycles operating with CO2-based binary mixture, taking into account exergetic, economic and exergo-environmental impact indices. The main intent is to assess the benefits of employing a CO2-based mixture working fluid in closed Brayton bottoming power cycles in comparison with pure CO2 working fluid. Firstly, selection criteria for the choice of suitable additive compound for CO2-based binary mixture is delineated and the composition of the binary mixture is decided based on required cycle minimum temperature. The decided CO2-C7H8 binary mixture with a 0.9 mole fraction of CO2 is analyzed in two cycle configurations: Simple regenerative cycle (SRC) and Partial heating cycle (PHC). Comparative analysis among two configurations with selected working fluid are carried out. Thermodynamic analyses at varying cycle pressure ratio shows that cycle with CO2-C7H8 mixture shows maximum power output and exergy efficiency at rather higher cycle pressure ratio compared to pure CO2 power cycles. PHC with CO2-C7H8 mixture shows 28.68% increment in exergy efficiency with the levelized cost of electricity (LCOE) 21.62% higher than pure CO2 PHC. Whereas, SRC with CO2-C7H8 mixture shows 25.17% increment in exergy efficiency with LCOE 57.14% higher than pure CO2 SRC. Besides showing lower economic value, cycles with a CO2-C7H8 mixture saves larger CO2 emissions and also shows greater exergo-environmental impact improvement and plant sustainability index.
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Fiaschi, Daniele, Giampaolo Manfrida, Karolina Petela et Lorenzo Talluri. « Thermo-Electric Energy Storage with Solar Heat Integration : Exergy and Exergo-Economic Analysis ». Energies 12, no 4 (17 février 2019) : 648. http://dx.doi.org/10.3390/en12040648.

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A Thermo-Electric Energy Storage (TEES) system is proposed to provide peak-load support (1–2 daily hours of operation) for distributed users using small/medium-size photovoltaic systems (4 to 50 kWe). The purpose is to complement the PV with a reliable storage system that cancompensate the produc tivity/load mismatch, aiming at off-grid operation. The proposed TEES applies sensible heat storage, using insulated warm-water reservoirs at 120/160 °C, and cold storage at −10/−20 °C (water and ethylene glycol). The power cycle is a trans-critical CO2 unit including recuperation; in the storage mode, a supercritical heat pump restores heat to the hot reservoir, while a cooling cycle cools the cold reservoir; both the heat pump and cooling cycle operate on photovoltaic (PV) energy, and benefit from solar heat integration at low–medium temperatures (80–120 °C). This allows the achievement of a marginal round-trip efficiency (electric-to-electric) in the range of 50% (not considering solar heat integration).The TEES system is analysed with different resource conditions and parameters settings (hot storage temperature, pressure levels for all cycles, ambient temperature, etc.), making reference to standard days of each month of the year; exergy and exergo-economic analyses are performed to identify the critical items in the complete system and the cost of stored electricity.
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Sahin, Ahmet Z., Abdullah Al-Sharafi, Bekir S. Yilbas et Abdul Khaliq. « Overall performance assessment of a combined cycle power plant : An exergo-economic analysis ». Energy Conversion and Management 116 (mai 2016) : 91–100. http://dx.doi.org/10.1016/j.enconman.2016.02.079.

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Du, Yawei, Xuefei Liang, Yan Liu, Lixin Xie et Shaofeng Zhang. « Exergo-economic analysis and multi-objective optimization of seawater reverse osmosis desalination networks ». Desalination 466 (septembre 2019) : 1–15. http://dx.doi.org/10.1016/j.desal.2019.04.030.

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Chen, Yuzhu, Dandan Zhao, Jinzhao Xu, Jun Wang et Peter D. Lund. « Performance analysis and exergo-economic optimization of a solar-driven adjustable tri-generation system ». Energy Conversion and Management 233 (avril 2021) : 113873. http://dx.doi.org/10.1016/j.enconman.2021.113873.

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Aygun, Hakan, et Onder Turan. « Exergo-economic analysis of off-design a target drone engine for reconnaissance mission flight ». Energy 224 (juin 2021) : 120227. http://dx.doi.org/10.1016/j.energy.2021.120227.

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Seyfouri, Zeynab, Mehran Ameri et Mozaffar Ali Mehrabian. « Exergo-economic analysis of a low-temperature geothermal-fed combined cooling and power system ». Applied Thermal Engineering 145 (décembre 2018) : 528–40. http://dx.doi.org/10.1016/j.applthermaleng.2018.09.072.

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Jamil, Muhammad Ahmad, Bilal Ahmed Qureshi et Syed M. Zubair. « Exergo-economic analysis of a seawater reverse osmosis desalination plant with various retrofit options ». Desalination 401 (janvier 2017) : 88–98. http://dx.doi.org/10.1016/j.desal.2016.09.032.

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Lawal, Dahiru U., Syed M. Zubair et Mohammad A. Antar. « Exergo-economic analysis of humidification-dehumidification (HDH) desalination systems driven by heat pump (HP) ». Desalination 443 (octobre 2018) : 11–25. http://dx.doi.org/10.1016/j.desal.2018.05.011.

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Baniasad Askari, Ighball, et Amin Shahsavar. « The exergo-economic analysis of two novel combined ejector heat pump/humidification-dehumidification desalination systems ». Sustainable Energy Technologies and Assessments 53 (octobre 2022) : 102561. http://dx.doi.org/10.1016/j.seta.2022.102561.

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Aydin, Hakan, Onder Turan, Adnan Midilli et T. Hikmet Karakoc. « Exergetic and exergo-economic analysis of a turboprop engine : a case study for CT7-9C ». International Journal of Exergy 11, no 1 (2012) : 69. http://dx.doi.org/10.1504/ijex.2012.049089.

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Ashouri, Milad, Mohammad H. Ahmadi, S. Mohsen Pourkiaei, Fatemeh Razi Astaraei, Roghaye Ghasempour, Tingzhen Ming et Javid Haj Hemati. « Exergy and exergo-economic analysis and optimization of a solar double pressure organic Rankine cycle ». Thermal Science and Engineering Progress 6 (juin 2018) : 72–86. http://dx.doi.org/10.1016/j.tsep.2017.10.002.

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Yue, Ting, et Noam Lior. « Exergo economic analysis of solar-assisted hybrid power generation systems integrated with thermochemical fuel conversion ». Applied Energy 191 (avril 2017) : 204–22. http://dx.doi.org/10.1016/j.apenergy.2017.01.055.

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Wu, Shuang-Ying, Jing-Rui Jiu, Lan Xiao, You-Rong Li, Chao Liu et Jin-Liang Xu. « Exergo-economic analysis of finned tube for waste heat recovery including phase change heat transfer ». Journal of Mechanical Science and Technology 27, no 11 (novembre 2013) : 3513–23. http://dx.doi.org/10.1007/s12206-013-0877-1.

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Ochoa, Guillermo Valencia, Carlos Acevedo Peñaloza et Jhan Piero Rojas. « Thermoeconomic Modelling and Parametric Study of a Simple ORC for the Recovery of Waste Heat in a 2 MW Gas Engine under Different Working Fluids ». Applied Sciences 9, no 21 (25 octobre 2019) : 4526. http://dx.doi.org/10.3390/app9214526.

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This paper presents a thermo-economic analysis of a simple organic Rankine cycle (SORC) as a waste heat recovery (WHR) systems of a 2 MW stationary gas engine evaluating different working fluids. Initially, a systematic methodology was implemented to select three organic fluids according to environmental and safety criteria, as well as critical system operational conditions. Then, thermodynamic, exergy, and exergo-economic models of the system were developed under certain defined considerations, and a set of parametric studies are presented considering key variables of the system such as pump efficiency, turbine efficiency, pinch point condenser, and evaporator. The results show the influence of these variables on the combined power of the system (gas engine plus ORC), ORC exergetic efficiency, specific fuel consumption (∆BSFC), and exergo indicators such as the payback period (PBP), levelized cost of energy (LCOE), and the specific investment cost (SIC). The results revealed that heat transfer equipment had the highest exergy destruction cost rates representing 81.25% of the total system cost. On the other hand, sensitivity analyses showed that acetone presented better energetic and exergetic performance when the efficiency of the turbine, evaporator, and condenser pinch point was increased. However, toluene was the fluid with the best results when pump efficiency was increased. In terms of the cost of exergy destroyed by equipment, the results revealed that acetone was the working fluid that positively impacted cost reduction when pump efficiency was improved; and toluene, when turbine efficiency was increased. Finally, the evaporator and condenser pinch point increased all the economic indicators of the system. In this sense, the working fluid with the best performance in economic terms was acetone, when the efficiency of the turbine, pinch condenser, and pinch evaporator was enhanced.
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Malik, F. Elmzughi, I. Dekam Elhadi, G. Almuzwghi Ali et Seddig Khaled. « Exergoeconomic analysis and parametric investigation of a gas turbine power plant ». i-manager's Journal on Power Systems Engineering 10, no 1 (2022) : 1. http://dx.doi.org/10.26634/jps.10.1.18827.

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Thermoeconomic models, combining the concept of cost in economics and the concept of exergy in thermodynamics, provide the ability to optimize complex power generation systems to achieve the best balance between thermodynamic efficiency and economic cost. In this paper, a parametric analysis was carried out based on the method of calculating the unit exergy cost, as well as exergo-economic studies and cost sensitivity studies on the exergy of the cycle of a gas turbine power plant. The mathematical models of mass, energy, effort, and economy were created and presented. Thermodynamic properties and research analysis are performed using the MINI- REFerence fluid PROPerties (MINI-REFPROP) and matrix laboratory (MATLAB) SIMULINK software packages. The analysis leads to valuable benchmarks of the economic situation. The exergo-economic coefficient, the total cost of exergy loss, exergy destruction for the combustion chamber, and labor productivity are determined. When conducting parametric studies, the influence of the temperature at the inlet to the gas turbine, the temperature at the inlet to the air compressor, and the degree of pressure increase in the compressor were taken into account. The combustion chamber at the plant was found to have the highest energy destruction rate of 80%, indicating that boilers need to be given more attention in terms of design, selection, operation, and maintenance. However, in percentage terms, the combustion chamber has a high improvement potential of 94%. Sensitivity and parametric analysis show that while the exergy factor, the total cost of exergy loss, exergy destruction for the combustion chamber, and power output fall with increasing air compressor inlet temperature, it can be increased with increasing compressor pressure ratio. The total energy loss cost, combustor energy loss, and power output decrease as the gas turbine inlet temperature rises, while the cycle network and overall exergy destruction rate increase. The rates of the exergy destruction of the Venture Capital (VC), the combustion chamber of the combustion chamber, and the total exergy destruction are 25.2, 122.3, and 153.2 MW, respectively, for the proposed conditions. In addition, the results showed that it was $2,272 per hour, while the cost of work performed in energy terms is $1,769 per hour with a fuel cost of $0.003 per MJ. A valuable achievement is the availability of defined values and clear parametric influences, which can be of great help to engineers and site operators in the efficient execution of unique tasks, playing with the conflicts of energy use, exergy, and cost.
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Gholamian, Ehsan, Pedram Hanafizadeh et Pouria Ahmadi. « Exergo-economic analysis of a hybrid anode and cathode recycling SOFC/Stirling engine for aviation applications ». International Journal of Sustainable Aviation 4, no 1 (2018) : 11. http://dx.doi.org/10.1504/ijsa.2018.092915.

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Gholamian, Ehsan, Pedram Hanafizadeh et Pouria Ahmadi. « Exergo-economic analysis of a hybrid anode and cathode recycling SOFC/Stirling engine for aviation applications ». International Journal of Sustainable Aviation 4, no 1 (2018) : 11. http://dx.doi.org/10.1504/ijsa.2018.10014058.

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Ghazizade-Ahsaee, Hossein, Mehran Ameri et Ighball Baniasad Askari. « A comparative exergo-economic analysis of four configurations of carbon dioxide direct-expansion geothermal heat pump ». Applied Thermal Engineering 163 (décembre 2019) : 114347. http://dx.doi.org/10.1016/j.applthermaleng.2019.114347.

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Marami Milani, Samira, Rahim Khoshbakhti Saray et Mohammad Najafi. « Exergo-economic analysis of different power-cycle configurations driven by heat recovery of a gas engine ». Energy Conversion and Management 186 (avril 2019) : 103–19. http://dx.doi.org/10.1016/j.enconman.2019.02.030.

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Dubey, Manoj, et Dhananjay R. Mishra. « Thermo-exergo-economic analysis of double slope solar still augmented with ferrite ring magnets and GI sheet ». DESALINATION AND WATER TREATMENT 198 (2020) : 19–30. http://dx.doi.org/10.5004/dwt.2020.25947.

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Ayub, Iqra, Muhammad Salman Nasir, Yang Liu, Anjum Munir, Zhen Wu, Fusheng Yang et Zaoxiao Zhang. « Exergo-economic analysis for screening of metal hydride pairs for thermochemical energy storage for solar baking system ». Thermal Science and Engineering Progress 30 (mai 2022) : 101271. http://dx.doi.org/10.1016/j.tsep.2022.101271.

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Aygun, Hakan, et Onder Turan. « Exergo-economic cost analysis for a long-range transport aircraft propulsion system at non-linear power loads ». Energy 204 (août 2020) : 117991. http://dx.doi.org/10.1016/j.energy.2020.117991.

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Jamil, Muhammad Ahmad, Samih M. Elmutasim et Syed M. Zubair. « Exergo-economic analysis of a hybrid humidification dehumidification reverse osmosis (HDH-RO) system operating under different retrofits ». Energy Conversion and Management 158 (février 2018) : 286–97. http://dx.doi.org/10.1016/j.enconman.2017.11.025.

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Askari, Ighball Baniasad, Mehran Ameri et Francesco Calise. « Energy, exergy and exergo-economic analysis of different water desalination technologies powered by Linear Fresnel solar field ». Desalination 425 (janvier 2018) : 37–67. http://dx.doi.org/10.1016/j.desal.2017.10.008.

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Valencia Ochoa, Guillermo, Carlos Acevedo Peñaloza et Jorge Duarte Forero. « Thermo-Economic Assessment of a Gas Microturbine-Absorption Chiller Trigeneration System under Different Compressor Inlet Air Temperatures ». Energies 12, no 24 (6 décembre 2019) : 4643. http://dx.doi.org/10.3390/en12244643.

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This manuscript presents a thermo-economic analysis for a trigeneration system integrated by an absorption refrigeration chiller, a gas microturbine, and the heat recovery steam generation subsystem. The effect of the compressor inlet air temperature on the thermo-economic performance of the trigeneration system was studied and analyzed in detail based on a validated model. Then, we determined the critical operating conditions for which the trigeneration system presents the greatest exergy destruction, producing an increase in the costs associated with loss of exergy, relative costs, and operation and maintenance costs. The results also show that the combustion chamber of the gas microturbine is the component with the greatest exergy destruction (29.24%), followed by the generator of the absorption refrigeration chiller (26.25%). In addition, the compressor inlet air temperature increases from 305.15 K to 315.15 K, causing a decrease in the relative cost difference of the evaporator (21.63%). Likewise, the exergo-economic factor in the heat exchanger and generator presented an increase of 6.53% and 2.84%, respectively.
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Jamil, Muhammad Ahmad, et Syed M. Zubair. « Design and analysis of a forward feed multi-effect mechanical vapor compression desalination system : An exergo-economic approach ». Energy 140 (décembre 2017) : 1107–20. http://dx.doi.org/10.1016/j.energy.2017.08.053.

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Abid, Muhammad, Muhammad Sajid Khan et Tahir Abdul Hussain Ratlamwala. « Comparative energy, exergy and exergo-economic analysis of solar driven supercritical carbon dioxide power and hydrogen generation cycle ». International Journal of Hydrogen Energy 45, no 9 (février 2020) : 5653–67. http://dx.doi.org/10.1016/j.ijhydene.2019.06.103.

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