Advanced exergy analysis of the natural gas liquid recovery process

Jovijari, Fakhrodin; Kosarineia, Abbas; Mehrpooya, Mehdi; Nabhani, Nader

doi:10.2298/tsci210522311j

Cited by 3 publications

(2 citation statements)

References 38 publications

(31 reference statements)

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“…Additionally, TEP involves the operation of load growth based on demand forecasting [5]. Hence, to implement of reliable energy supply the increase the generation share of wind farms compared to the total generation of electric energy in the traditional systems [6], [7], it is necessary to have a reliable supply of energy in order to maintain customer satisfaction in the power system planning with regard to uncertainties [8], [9]. The research of the power systems considering different areas like power plants, transmission and distribution grids are assessed in this subsection.…”

Section: A Aims and Related Researchmentioning

confidence: 99%

Planning and Expansion of the Transmission Network in the Presence of Wind Power Plants

Sun

2023

IJACSA

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The proliferation of renewable energy sources, particularly wind farms, is rapidly gaining momentum owing to their numerous benefits. Consequently, it is imperative to account for the impact of wind farms on transmission expansion planning (TEP), which is a crucial aspect of power system planning. This article presents a multi-objective optimization model that utilizes DC load flow to address the TEP challenge while also incorporating wind farm uncertainties into the model. The present study aims to optimize the expansion and planning of the TEP in the power system by considering investment and maintenance costs as objective functions. To achieve this, a multiobjective approach utilizing the shuffled frog leaping algorithm (SFLA) is proposed and implemented. The proposed objectives are simulated on the RTS-IEEE 24-bus test network. The results obtained from the proposed algorithm are compared with those of the Genetic Algorithm (GA) to assess and validate the proposed approach.

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Section: A Aims and Related Researchmentioning

confidence: 99%

Planning and Expansion of the Transmission Network in the Presence of Wind Power Plants

Sun

2023

IJACSA

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“…In various industrial systems and processes, exergy analysis locates the exergy destruction and explains the reason for the inefficiency, hence it is important for saving both energy and resources. It focuses on the quality of energy rather than quantity [5]. Exergy analysis of an absorption chiller/KC coupled system has shown that higher exergy efficiency and more electricity production can be achieved in the proposed system [6].…”

Section: Introductionmentioning

confidence: 99%

Advanced Exergy Analysis of an Absorption Chiller/Kalina Cycle Integrated System for Low-Grade Waste Heat Recovery

Liu

Zeng

Deng³

et al. 2022

Processes

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Exergy analysis and advanced exergy analysis of an absorption chiller/Kalina cycle integrated system are conducted in this research. The exergy destruction of each component and overall exergy efficiency of the cascade process have been obtained. Advanced exergy analysis investigates the interactions among different components and the actual improvement potential. Results show that among all the equipment, the largest exergy destruction is in the generators and absorber. System exergy efficiency is obtained as 35.52%. Advanced analysis results show that the endogenous exergy destruction is dominant in each component. Interconnections among different components are not significant but very complicated. It is suggested that the improvement priority should be given to the turbine. Performance improvement of this low-grade waste heat recovery process is still necessary because around 1/4 of the total exergy destruction can be avoided. Exergy and advanced exergy analysis in this work locates the position of exergy destruction, quantifies the process irreversibility, presents the component interactions and finds out the system improvement potential. This research provides detailed and useful information about this absorption chiller/Kalina cycle integrated system.

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A comprehensive assessment of energetic and exergetic performance for the dehumidification system of a processed pistachio production unit

Dowlati,

Golpour,

Blanco‐Marigorta

et al. 2023

J Food Process Engineering

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The present study aims to conduct a comprehensive evaluation of the energetic and exergetic performance of a dehumidification system utilized in the processing of raw pistachios. The assessment involved the application of the first and second laws of thermodynamics to calculate the exergy aspects of each component of the system, including input and output exergy rates, output/input exergy efficiency, product/fuel exergy efficiency, exergy destruction rate, exergy loss rate, exergy improvement potential rate, and specific exergy consumption. Furthermore, the effect of variations in reference state temperature on the exergy parameters was also investigated. The results indicated that the pre‐dryer chamber had the highest input exergy rate among all the components of the dehumidification system. The product/fuel exergy efficiency is specified to be 35.10%, 9.47%, and 60.43%, for the electro‐fan, heater, and pre‐dryer chamber, respectively, while their output/input exergy efficiency are 87.87%, 22.10%, and 56.28%, respectively. The values of the exergy destruction rate of these components are 0.83, 147.14, and 1.12 kW whereas the exergy loss rate values are found to be 0.03, 4.12, and 9.24 kW, respectively. The improvement potential rate values of these components are obtained to be 0.10, 117.83, and 4.53 kW, while the amount of specific exergy consumption for the dehumidification system is determined as 481.85 kJ/kg. The study also reveals that the exergy parameters vary with changes in reference state temperature and that the exergy efficiencies decrease linearly as reference state temperature rises. Therefore, the findings of this investigation demonstrate the potential for using exergy analysis as an effective tool to improve the performance of dehumidification systems in industrial settings, specifically in the production of pistachios.Practical applicationsPistachio nut known as green gold because of its high economical value, is one of the popular nuts over the world. Dehumidification system based on drying technology could be used in food industry with many distinct advantages for processing of particulate crops like pistachios. For a comprehensive assessment of this system, analysis of the first and second laws of thermodynamics is applied. Exergy aspect based on the thermodynamic analysis the is an important stage for designing, modeling, optimizing, and performance assessment of the dehumidification system to produce processed pistachio. The results of this study show that the performance of dehumidification system could be improved by incorporating a steam compressor, a secondary heat exchanger, self‐heat recuperation technology, and a pinch method. It is believed that such a study would contribute to the industrial exploitation of pistachio which can provide insight into decreasing energy consumption and reducing capital costs for engineers and factory owners.

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Advanced exergy analysis of the natural gas liquid recovery process

Cited by 3 publications

References 38 publications

Planning and Expansion of the Transmission Network in the Presence of Wind Power Plants

Planning and Expansion of the Transmission Network in the Presence of Wind Power Plants

Advanced Exergy Analysis of an Absorption Chiller/Kalina Cycle Integrated System for Low-Grade Waste Heat Recovery

A comprehensive assessment of energetic and exergetic performance for the dehumidification system of a processed pistachio production unit

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