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Journal articles on the topic 'Exergy cost'

Author: Grafiati

Published: 1 April 2023

Last updated: 25 July 2025

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1

Malik, F. Elmzughi, I. Dekam Elhadi, G. Almuzwghi Ali, and 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

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2

Tsatsaronis, George, and Michael J. Moran. "Exergy-aided cost minimization." Energy Conversion and Management 38, no. 15-17 (1997): 1535–42. http://dx.doi.org/10.1016/s0196-8904(96)00215-4.

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3

Valencia Ochoa, Guillermo, Jhan Piero Rojas, and 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 (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

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4

Shamoushaki, Moein, Mehdi Aliehyaei, and Farhad Taghizadeh-Hesary. "Energy, Exergy, Exergoeconomic, and Exergoenvironmental Assessment of Flash-Binary Geothermal Combined Cooling, Heating and Power Cycle." Energies 14, no. 15 (2021): 4464. http://dx.doi.org/10.3390/en14154464.

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This research presents the energy, exergy, economic, and environmental assessment, and multi-objective optimization of a flash-binary geothermal CCHP cycle. A sensitivity analysis of production well inlet temperature and cooling to power flow ratio on exergetic, economic, and environmental parameters was conducted. Furthermore, the effects of the inflation rate and plant working hours on economic parameters were investigated. Results showed that increasing the production well inlet temperature harms exergy efficiency and exergetic performance criteria and results in a gain in exergo-environmen

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Yazawa, Kazuaki, and Ali Shakouri. "D135 Exergy Analysis of Cost Effective Thermoelectric Topping Cycles." Proceedings of the National Symposium on Power and Energy Systems 2014.19 (2014): 137–38. http://dx.doi.org/10.1299/jsmepes.2014.19.137.

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6

Torres, César, and Antonio Valero. "The Exergy Cost Theory Revisited." Energies 14, no. 6 (2021): 1594. http://dx.doi.org/10.3390/en14061594.

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This paper reviews the fundamentals of the Exergy Cost Theory, an energy cost accounting methodology to evaluate the physical costs of products of energy systems and their associated waste. Besides, a mathematical and computationally approach is presented, which will allow the practitioner to carry out studies on production systems regardless of their structural complexity. The exergy cost theory was proposed in 1986 by Valero et al. in their “General theory of exergy savings”. It has been recognized as a powerful tool in the analysis of energy systems and has been applied to the evaluation of

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7

Rosa, Rui N., and Diogo R. N. Rosa. "Exergy cost of mineral resources." International Journal of Exergy 5, no. 5/6 (2008): 532. http://dx.doi.org/10.1504/ijex.2008.020824.

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8

Ptasinski, Krzysztof J. "Exergy: Production, Cost and Renewability." Energy 55 (June 2013): 1209. http://dx.doi.org/10.1016/j.energy.2013.03.044.

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Wang, Jixuan, Wensheng Liu, Xin Meng, et al. "Study on the Coupling Effect of a Solar-Coal Unit Thermodynamic System with Carbon Capture." Energies 13, no. 18 (2020): 4779. http://dx.doi.org/10.3390/en13184779.

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Based on the structural theory of thermo-economics, a 600 MW unit was taken as an example. An integration system which uses fuel gas heat and solar energy as a heat source for post-combustion carbon capture was proposed. The physical structure sketch and productive structure sketch were drawn and a thermo-economics model and cost model based on the definition of fuel-product were established. The production relation between units was analyzed, and the composition and distribution of the exergy cost and thermo-economic cost of each unit were studied. Additionally, the influence of the fuel pric

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10

Tsatsaronis, G., L. Lin, and J. Pisa. "Exergy Costing in Exergoeconomics." Journal of Energy Resources Technology 115, no. 1 (1993): 9–16. http://dx.doi.org/10.1115/1.2905974.

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Existing methods of exergoeconomic analysis and optimization of energy systems operate with single average or marginal cost values per exergy unit for each material stream in the system being considered. These costs do not contain detailed information on (a) how much exergy, and (b) at what cost each exergy unit was supplied to the stream in the upstream processes. The cost of supplying exergy, however, might vary significantly from one process step to the other. Knowledge of the exergy addition and the corresponding cost at each previous step can be used to improve the costing process. This p

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Khedr, Sobhy, Melchiorre Casisi, and Mauro Reini. "The Thermoeconomic Environment Cost Indicator (iex-TEE) as a One-Dimensional Measure of Resource Sustainability." Energies 15, no. 6 (2022): 2260. http://dx.doi.org/10.3390/en15062260.

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This paper presents a conceptual development of sustainability evaluation, through an exergy-based indicator, by using the new concept of the Thermoeconomic Environment (TEE). The exergy-based accounting methods here considered as a background are Extended Exergy Accounting (EEA), which can be used to quantify the exergy cost of externalities like labor, monetary inputs, and pollutants, and Cumulative Exergy Consumption (CExC), which can be used to quantify the consumption of primary resources embodied in a final product or service. The new concept of bioresource stock replacement cost is pres

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Valero, Alicia, Antonio Valero, and Adriana Domínguez. "Exergy Replacement Cost of Mineral Resources." Journal of Environmental Accounting and Management 1, no. 2 (2013): 147–58. http://dx.doi.org/10.5890/jeam.2013.05.004.

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13

Muhammad Penta Helios, Achmad Maswan, Riki Jaka Komara, Himawan Sutriyanto, Bhakti Nuryadin, and Ade Andini. "Energy, Exergy, and Externalities Cost Rate Analysis of 300 MW Coal-Fired Power Plant: A Case Study." Majalah Ilmiah Pengkajian Industri 16, no. 3 (2022): 103–13. http://dx.doi.org/10.29122/mipi.v16i3.5405.

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Three types of analysis conducted at one of Thailand's coal-fired power plants were reported in this paper. The analyses consisting of energy, exergy, and externalities cost rate analysis are aimed to analyse the largest energy loss and exergy destruction that occurs in the system, to assess the contribution of Energy externalities cost rate based on fuel price, and to determine potential cost saving. Energy loss at the condenser was the highest among major units of the Thai power plants, which contributed around 49.11% at full load condition and was followed by a boiler, turbine, etc. Further

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Oyedepo, S. O., R. O. Fagbenle, S. S. Adefila, and Md Mahbub Alam. "Exergoeconomic analysis and performance assessment of selected gas turbine power plants." World Journal of Engineering 12, no. 3 (2015): 283–300. http://dx.doi.org/10.1260/1708-5284.12.3.283.

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In this study, exergoeconomic analysis and performance evaluation of selected gas turbine power plants in Nigeria were carried out. The study was conducted using operating data obtained from the power plants to determine the exergy efficiency, exergy destruction, unit cost of electricity and cost of exergy destruction of the major components of a gas turbine engine in the selected power plants. The results of exergy analysis confirmed that the combustion chamber is the most exergy destructive component compared to other cycle components as expected. The total efficiency defects and overall exe

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15

Liu, Sha, and Pei Hong Wang. "Calculation Model of Exergy Cost Based on Thermoeconomics Structure Theory and Thermoeconomics Accounting Mode." Applied Mechanics and Materials 313-314 (March 2013): 1148–52. http://dx.doi.org/10.4028/www.scientific.net/amm.313-314.1148.

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Thermoeconomics combines the thermodynamic analysis and economics evaluation, and simultaneously considers the thermodynamics and economics effect of the process of energy conversion in power plant. It becomes the focus of research. This paper mainly discusses the establishment method of the exergy cost equation in thermoeconomics structure theory, at the same time this method also combines with thermoeconomics accounting theory. Through the research, this paper presents a clear, simple, utility exergy cost equation established method. Compared with the chain differential principle, this metho

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16

Ghiami Sardroud, Ramin, Amirreza Javaherian, Seyed Mohammad Seyed Mahmoudi, Mehri Akbari Kordlar, and Marc A. Rosen. "Proposal and Comprehensive Analysis of a Novel Combined Plant with Gas Turbine and Organic Flash Cycles: An Application of Multi-Objective Optimization." Sustainability 15, no. 19 (2023): 14152. http://dx.doi.org/10.3390/su151914152.

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Environmental, exergo-economic, and thermodynamic viewpoints are thoroughly investigated for a state-of-the-art hybrid gas turbine system and organic flash cycle. For the proposed system, the organic flash cycle utilizes the waste thermal energy of the gases exiting the gas turbine sub-system to generate additional electrical power. Six distinct working fluids are considered for the organic flash cycle: R245fa, n-nonane, n-octane, n-heptane, n-hexane, and n-pentane. A parametric investigation is applied on the proposed combined system to evaluate the impacts of seven decision parameters on the

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17

Marques, Adriano da S., Monica Carvalho, Álvaro A. V. Ochoa, Ronelly J. Souza, and Carlos A. C. dos Santos. "Exergoeconomic Assessment of a Compact Electricity-Cooling Cogeneration Unit." Energies 13, no. 20 (2020): 5417. http://dx.doi.org/10.3390/en13205417.

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This study applies the SPecific Exergy COsting (SPECO) methodology for the exergoeconomic assessment of a compact electricity-cooling cogeneration system. The system utilizes the exhaust gases from a 126 hp Otto-cycle internal combustion engine (ICE) to drive a 5 RT ammonia–water absorption refrigeration unit. Exergy destruction is higher in the ICE (67.88%), followed by the steam generator (14.46%). Considering the cost of destroyed exergy plus total cost rate of equipment, the highest values are found in the ICE, followed by the steam generator. Analysis of relative cost differences and exer

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18

Li, Peng, Baokuan Li, Zhongqiu Liu, and Wenjie Rong. "Evaluation and analysis of exergoeconomic performance for the calcination process of green petroleum coke in vertical shaft kiln." Thermal Science, no. 00 (2021): 294. http://dx.doi.org/10.2298/tsci210609294l.

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The main objective of this paper is to establish a mathematical framework to analyze the complex thermal economic performance of the calcination process. To find the factors affecting exergy efficiency loss, different exergy destruction is investigated in detail. Furthermore, the exergy flow cost model for exergy cost saving has also been developed. The results show that the vertical shaft furnace is a self-sufficiency equipment without additional fuel required, but the overall exergy destruction accounts for 54.11% of the total exergy input. In addition, the energy efficiency of the waste hea

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19

Nasruddin, Septian Khairul Masdi, and Arief Surachman. "Exergy Analysis and Exergoeconomic Optimization with Multiobjective Method of Unit 4 Kamojang Geothermal Power Plant." Applied Mechanics and Materials 819 (January 2016): 523–29. http://dx.doi.org/10.4028/www.scientific.net/amm.819.523.

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This study presents four analysis at unit 4 Kamojang geothermal power plant are exergy analysis at current condition, exergy efficiency optimization, economic optimization, and exergoeconomic optimization with wellhead valve pressure as a variable. Calculations are conducted by using the MATLAB. Thermodynamics characteristic of geothermal fluid assumed as water characteristic which get from REFPROP. Wellhead pressure operational condition 10 bar has exergy efficiency 31.91%. Exergy efficiency optimization has wellhead valve pressure 5.06 bar, exergy efficiency 47.3%, and system cost US$ 3,957,

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20

Yazdi, Behnam, Behdad Yazdi, Mehdi Ehyaei, and Abolfazl Ahmadi. "Optimization of micro combined heat and power gas turbine by genetic algorithm." Thermal Science 19, no. 1 (2015): 207–18. http://dx.doi.org/10.2298/tsci121218141y.

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In this paper, a comprehensive thermodynamic modeling and multi-objective optimization of a micro turbine cycle in combined heat and power generation, which provides 100KW of electric power. This CHP System is composed of air compressor, combustion chamber (CC), Air Preheater, Gas Turbine (GT) and a Heat Recovery Heat Exchanger. In this paper, at the first stage, the each part of the micro turbine cycle is modeled using thermodynamic laws. Next, with using the energetic and exergetic concepts and applying economic and environmental functions, the multi-objectives optimization of micro turbine

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21

Aras, Haydar, and Ozgur Balli. "Exergoeconomic Analysis of a Combined Heat and Power System with the Micro Gas Turbine (MGTCHP)." Energy Exploration & Exploitation 26, no. 1 (2008): 53–70. http://dx.doi.org/10.1260/014459808784305824.

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This paper presents the results of exergy and exergoeconomic analyses applied to a combined heat and power system with micro-gas turbine (MGTCHP). Quantative balances of the exergy and exergy cost for each component and for the whole system are carefully considered, while exergy consumption and cost generation within the system are determined. The exergy analysis indicates that the exergetic efficiency of the MGTCHP system is 35.80% with 123 kW (as 99.15 kW-electrical power and 24.46 kW-hot water@363.15 K). On the other hand, the exergoeconomic analysis results show that the unit exergy cost o

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22

Aieneh, Koorosh, Sadegh Mehranfar, Mohammad Yazdi Sotoude, Shayan Sadeghi, and Amin Mahmoudzadeh Andwari. "Solar-Powered Combined Cooling, Heating, and Power Energy System with Phase-Change Material and Water Electrolysis: Thermo-Economic Assessment and Optimization." Energies 17, no. 13 (2024): 3309. http://dx.doi.org/10.3390/en17133309.

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A solar-powered combined cooling, heating, and power (CCHP) plant integrated with a water electrolysis unit is investigated in terms of energy, exergy, and exergo-economic (3E) assessments. A comprehensive parametric study and optimization is conducted following the thermodynamic and exergo-economic assessment of the proposed system to evaluate the key performance parameters of the system for efficiency and economic factors. This system employs a heliostat field and a receiver tower by taking advantage of thermal energy from the sun and produces a continuous energy supply with an integrated ph

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Xiang, Jing Yan, Jun Zhao, Xi Kui Wang, and Bao Zhu Zhao. "Dynamic Exergetic Cost Analysis of a Space Heating System." Advanced Materials Research 354-355 (October 2011): 722–25. http://dx.doi.org/10.4028/www.scientific.net/amr.354-355.722.

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The design of heating systems with groundwater source heat pumps (GWHP) is very important for reducing their power consumption. For better design, reasonable analysis of the systems is necessary. In this paper, a dynamic exergy and exergetic cost analysis of a heating system with GWHP is performed in a whole heating season by the use of structural theory of thermoeconomics and the software of TRNSYS. The relative exergy destruction of every component and the exergetic cost of the final product of the system are obtained. The results show that the heat pump has the largest relative exergy destr

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Khan, Muhammad Alam Zaib, Abdul Wahab, Kamran Khan, Naveed Ahmad, and 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 (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

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Ledari, Masoomeh Bararzadeh, Yadollah Saboohi, Antonio Valero, and Sara Azamian. "Exergy cost analysis of soil-plant system." International Journal of Exergy 38, no. 3 (2022): 293. http://dx.doi.org/10.1504/ijex.2022.124174.

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Bararzadeh Ledari, Masoomeh, Yadollah Saboohi, Antonio Valero, and Sara Azamian. "Exergy cost analysis of soil-plant system." International Journal of Exergy 38, no. 3 (2022): 293. http://dx.doi.org/10.1504/ijex.2022.10048872.

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27

Nixon, J. D., and P. A. Davies. "Cost-exergy optimisation of linear Fresnel reflectors." Solar Energy 86, no. 1 (2012): 147–56. http://dx.doi.org/10.1016/j.solener.2011.09.024.

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Tumen, Ozdil, and Atakan Tantekin. "Exergoeconomic analysis of a fluidized bed coal combustion steam power plant." Thermal Science 21, no. 5 (2017): 1975–84. http://dx.doi.org/10.2298/tsci151210056t.

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In this study, extensive exergoeconomic analysis is performed for a 6.5 MW steam power plant using the data obtained from running system. The role and impact of the each system component on the first and second law efficiencies are analyzed to understand the individual performance of sub-components. Moreover, the quantitative exergy cost balance for each component is considered to point out the exergoeconomic performance. The analysis shows that the largest irreversibility occurs in the fluidized bed coal combustion (FBCC), about 93% of the overall system irreversibility. Furthermore, it is fo

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Oyedepo, Sunday Olayinka, Richard Olayiwola Fagbenle, Samuel Sunday Adefila, and Md Mahbub Alam. "Exergoenvironomic modelling and performance assessment of selected gas turbine power plants." World Journal of Engineering 13, no. 2 (2016): 149–62. http://dx.doi.org/10.1108/wje-04-2016-020.

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Purpose This study aims to use an environomics method to assess the environmental impacts of selected gas turbine power plants in Nigeria. Design/methodology/approach In this study, exergoenvironomic analysis has been carried out to investigate the environmental impact of selected gas turbine power plants in Nigeria from an exergetic point of view. Findings The exergy analysis reveals that the combustion chamber is the most exergy destructive component compared to other cycle components. The exergy destruction of this component can be reduced by increasing gas turbine inlet temperature (GTIT).

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Ochoa, Guillermo Valencia, Carlos Acevedo Peñaloza, and 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 (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

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Lee, Sang Hyun, Dong-Ha Lim, and Kyungtae Park. "Optimization and Economic Analysis for Small-Scale Movable LNG Liquefaction Process with Leakage Considerations." Applied Sciences 10, no. 15 (2020): 5391. http://dx.doi.org/10.3390/app10155391.

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In this study, exergy and economic analysis were conducted to gain insight on small-scale movable LNG liquefaction considering leakage. Optimization and comparison were performed to demonstrate the quantitative results of single mixed refrigerant, dual nitrogen expansion, and the propane pre-cooling self-refrigeration processes. For the optimization, exergy efficiency was used as the objective function; the results showed that exergy efficiencies are 38.85%, 19.96%, and 13.65%, for single mixed refrigerant, dual nitrogen expansion, and propane pre-cooling self-refrigeration, respectively. Furt

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Basta, Giuseppe, Nicoletta Meloni, Francesco Poli, Lorenzo Talluri, and Giampaolo Manfrida. "Energy, Exergy and Exergo-Economic Analysis of an OTEC Power Plant Utilizing Kalina Cycle." Global Journal of Energy Technology Research Updates 8 (December 28, 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

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Sciubba, Enrico. "Exergy-based ecological indicators: From Thermo-Economics to cumulative exergy consumption to Thermo-Ecological Cost and Extended Exergy Accounting." Energy 168 (February 2019): 462–76. http://dx.doi.org/10.1016/j.energy.2018.11.101.

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Ubong, Ubong Nsikak, Prof Emenike Wami, Dr E. O. Ehirim, and Prof Etim U Ubong. "The Possibility of using Flared Gas to Generate Electricity using Combined Power Cycle." International Journal of Advanced Engineering Research and Science 10, no. 8 (2023): 038–44. http://dx.doi.org/10.22161/ijaers.108.5.

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This work evaluated the possibility of generating electricity from flared gases through the application of combined power cycle (Organic Rankine and Brayton circle) which was simulated using Aspen Hysys. The data for the stimulation was obtained from literature in terms of the process plant operating conditions. The results obtained from the simulation were presented in terms of material balance, energy balance, costing, sensitivity analysis and exergy analysis, which is otherwise known as energy availability. The major equipment in the plants were: pump, heat exchanger, compressor, combustion

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Hassan, Alamir H., Zhirong Liao, Kaichen Wang, Mostafa M. Abdelsamie, Chao Xu, and Yanhui Wang. "Exergy and Exergoeconomic Analysis for the Proton Exchange Membrane Water Electrolysis under Various Operating Conditions and Design Parameters." Energies 15, no. 21 (2022): 8247. http://dx.doi.org/10.3390/en15218247.

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Integrating the exergy and economic analyses of water electrolyzers is the pivotal way to comprehend the interplay of system costs and improve system performance. For this, a 3D numerical model based on COMSOL Multiphysics Software (version 5.6, COMSOL, Stockholm, Sweden) is integrated with the exergy and exergoeconomic analysis to evaluate the exergoeconomic performance of the proton exchange membrane water electrolysis (PEMWE) under different operating conditions (operating temperature, cathode pressure, current density) and design parameter (membrane thickness). Further, the gas crossover p

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Torrubia, Jorge, Antonio Valero, and Alicia Valero. "Non-renewable and renewable levelized exergy cost of electricity (LExCOE) with focus on its infrastructure: 1900–2050." Energy 313 (November 25, 2024): 133987. https://doi.org/10.1016/j.energy.2024.133987.

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This study develops the concept of the levelized exergy cost of electricity (LExCOE), evaluating key global electricity technologies from 1900 to 2050. It distinguishes the origin of the exergy (non-renewable and renewable) with focus on the infrastructure. Using this indicator, we studied the <em>non-renewable resource use</em> of these technologies in exergy cost terms. LExCOE decreased from 3.71 to 3.09 MJ/MJ between 1900 and 1960, then further to 2.33 MJ/MJ by 2010 due to the improvements in non-renewable plants performance. Between 2020 and 2050, the International Ener

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Wu, Jin, Jiangjiang Wang, Jing Wu, and Chaofan Ma. "Exergy and Exergoeconomic Analysis of a Combined Cooling, Heating, and Power System Based on Solar Thermal Biomass Gasification." Energies 12, no. 12 (2019): 2418. http://dx.doi.org/10.3390/en12122418.

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The purpose of this paper is to improve the utilization of renewable energy by exergy and exergoeconomic analysis of the novel combined cooling, heating, and power (CCHP) system, which is based on solar thermal biomass gasification. The source of heat to assist biomass and steam gasification is the solar heat collected by a dish collector, and the product gas being fuel that drives the internal combustion engine to generate electricity and then to produce chilled/hot water by a waste heat unitization system. The analysis and calculation of the exergy loss and exergy efficiency of each componen

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Mohammed, A. Elhaj, Salem Akasha Ahmed, and Farag Elmzughi Malik. "Dynamic simulation and sensitivity analysis of steam generation solar power plant." i-manager's Journal on Circuits and Systems 12, no. 1 (2024): 1. https://doi.org/10.26634/jcir.12.1.21249.

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This paper presents exergy, exergoeconomic, and exergy cost sensitivity analyses of a cogeneration solar power plant cycle, along with a detailed parametric study based on Exergy Cost Theory. Mathematical models addressing mass, energy, exergy, and economic parameters were developed and presented. The thermodynamic properties and associated analyses were conducted using Thermax, Excel, and MATLAB Simulink software tools. The findings provide valuable benchmarks for evaluating the economic performance of the plant. Sensitivity and parametric analyses reveal that the exergoeconomic factor, total

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Braimah, M. N., A. N. Anozie, and R. O. Braimah. "Optimizing Medical Air Production Using Exergy and Process Cost Analysis." Journal of Environmental Science and Engineering Technology 5, no. 1 (2017): 16–22. http://dx.doi.org/10.12974/2311-8741.2017.05.01.3.

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This work compared one new design of Air separation using Linde process for medical air production with existing plant using exergy and process cost analyses. Hyprotech System Simulator (HYSYS) software was used in simulating the process plants and Microsoft Excel was used for exergy, energy and process cost analyses. Annual profit was used as fiscal index for comparism with existing plant design. Exergy analysis of Linde air separation process showed that exergy efficiency of the existing plant (base case) was 3.23 kJ/h while that of the improved plant when the valve was replaced with a turbi

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Gonçalves, L. P., and F. R. P. Arrieta. "AN EXERGY COST ANALYSIS OF A COGENERATION PLANT." Revista de Engenharia Térmica 9, no. 1-2 (2010): 28. http://dx.doi.org/10.5380/reterm.v9i1-2.61927.

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The exergy analysis, including the calculation of the unit exergetic cost of all flows of the cogeneration plant, was the main purpose of the thermoeconomic analysis of the STAG (STeam And Gas) combined cycle CHP (Combined Heat and Power) plant. The combined cycle cogeneration plant is composed of a GE10 gas turbine (11250 kW) coupled with a HRSG (Heat Recovery Steam Generator) and a condensing extraction steam turbine. The GateCycleTM Software was used for the modeling and simulation of the combined cycle CHP plant thermal scheme, and calculation of the thermodynamic properties of each flow (

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Himsworth, J. R. "Exergy Overhead: The Cost of Operating a Process." International Journal of Mechanical Engineering Education 19, no. 1 (1991): 29–31. http://dx.doi.org/10.1177/030641909101900105.

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WANG, Songping. "Transfer equation of exergy cost and its application." Chinese Science Bulletin 48, no. 7 (2003): 619. http://dx.doi.org/10.1360/03tb9131.

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Wang, Songping, Qinglin Chen, Qinghua Yin, and Ben Hua. "Transfer equation of exergy cost and its application." Science Bulletin 48, no. 7 (2003): 619–22. http://dx.doi.org/10.1007/bf03325640.

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Acevedo, Luis, Sergio Usón, and Javier Uche. "Local exergy cost analysis of microwave heating systems." Energy 80 (February 2015): 437–51. http://dx.doi.org/10.1016/j.energy.2014.11.085.

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Julius, Thaddaeus, O. Unachukwu Godwin, A. Mgbemene Chigbo, Pesyridis Apostolos, and Aziz Alshammari Fuhaid. "Exergy and economic assessments of an organic rankine cycle module designed for heat recovery in commercial truck engines." Indian Journal of Science and Technology 13, no. 37 (2020): 3871–83. https://doi.org/10.17485/IJST/v13i37.1299.

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Abstract <strong>Objectives:</strong> To evaluate the energy and exergy performances of a designed ORC system and to quantify loses within the system and measure its output.The study also assesses the economic performance of the ORC system to determine the feasibility of the business. <strong>Methods:</strong> Thermodynamic analysis assessing the energy performance and cost estimation using manufacturers’ prices to generate generic equations for estimating costs of the components of the designed ORC system.<strong> Findings:</strong> The results of the exergy eva

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Malik, F. Elmzughi, Akasha Ahmed, A. Elhaj Mohammed, and A. Altwibi Ayoub. "Thermodynamic and exergoeconomic operation optimization and simulation of steam generation solar power plant." i-manager's Journal on Power Systems Engineering 12, no. 1 (2024): 1. http://dx.doi.org/10.26634/jps.12.1.21175.

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Steam power generation is one of the most important energy productions in the world and needs to be improved to reduce the greenhouse effect while increasing electricity production. This paper deals with the energy, exergy, and exergoeconomic analysis of a steam-generating solar power plant. A general methodology is presented to define and calculate the exergy efficiency, exergy destruction, exergoeconomic factors, total costs, improvement potentials, and exergy costs in thermal systems. The methodology is based on a specific exergy cost approach and a sensitivity cost analysis. The thermodyna

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Awaludin Martin, Nur Indah Rivai, Rahmat Dian Amir, and Nasruddin. "Exergoeconomic Analysis of 21.6 MW Gas Turbine Power Plant in Riau, Indonesia." Journal of Advanced Research in Fluid Mechanics and Thermal Sciences 84, no. 1 (2021): 126–34. http://dx.doi.org/10.37934/arfmts.84.1.126134.

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In this study, exergoeconomic analysis was carry out on a 21.6MW gas turbine power plant by using logbooks record Pekanbaru Unit. The exergy analysis was start to determine the exergy destruction of each component of the power plant based on the first and second laws of thermodynamics and in this study, exergy and economic analysis were combined and used to evaluate the accrued cost caused by irreversibility, including the cost of investment in each component. The exergy analysis results showed that the location of the largest destruction was in the combustion chamber with 21,851.18 kW, follow

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Han, Bing-Chuan, Yong-Dong Chen, Gai-Ge Yu, Xiao-Hong Wu, and Tao-Tao Zhou. "Completely Recuperative Supercritical CO2 Recompression Brayton/Absorption Combined Power/Cooling Cycle: Performance Assessment and Optimization." International Journal of Photoenergy 2022 (May 20, 2022): 1–22. http://dx.doi.org/10.1155/2022/3869867.

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Excessive heat losses and water consumption in cooling units are significant constraints restricting the application circumstances and performances for the SCO2 Brayton cycle, and the heat exchange capacity in the precooler (PRC) is typically 1.5 times that of power generation. Therefore, this research offers a high-integrated combined power/cooling system in which two waste heat exchangers (WHEs) and a rectifier (RET) are used instead of the PRC to achieve 100% exhaust heat recovery. Each component’s energy and exergy models are developed, and the operational characteristics, coupling relatio

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Mitrovic, Dejan, Branislav Stojanovic, Jelena Janevski, Marko Ignjatovic, and Goran Vuckovic. "Exergy and exergoeconomic analysis of a steam boiler." Thermal Science 22, Suppl. 5 (2018): 1601–12. http://dx.doi.org/10.2298/tsci18s5601m.

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Relying on coal as primary fuel in thermal power plants represents an unsustainable concept due to limited coal reserves and a negative environmental impact. Efficient utilization of coal reserves and a request for minimization of irreversibilities are imperative for thermal power plants operation. Numerous studies have shown that a steam boiler is a thermal power plant component with the highest irreversibility. The idea of this paper is to quantify the amounts and sources of irreversibilities within a steam boiler and its components, serving a 348.5MWe thermal power plant. Having this in min

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Cavalcanti, Eduardo J. C., and Monica Carvalho. "Tackling Dissipative Components Based on the SPECO Approach: A Cryogenic Heat Exchanger Used in Natural Gas Liquefaction." Energies 14, no. 20 (2021): 6850. http://dx.doi.org/10.3390/en14206850.

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The cryogenic industry has been experiencing continuous progress in recent years, primarily due to the global development of oil and gas activities. Natural gas liquefaction is a cryogenic process, with the refrigeration system being crucial to the overall process. The objective of the study presented herein is to carry out an exergoeconomic assessment for a dual nitrogen expander process used to liquefy natural gas, employing the SPecific Exergy COsting (SPECO) methodology. The air coolers and throttling valve are dissipative components, which present fictitious unit cost rates that are reall

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