Comprehensive thermodynamic analysis of the CAES system coupled with the underground thermal energy storage taking into account global, central and local level of energy conversion

Hyrzyński, Rafał; Ziółkowski, Paweł; Gotzman, Sylwia; Kraszewski, Bartosz; Ochrymiuk, Tomasz; Badur, Janusz

doi:10.1016/j.renene.2020.12.123

Cited by 31 publications

(5 citation statements)

References 41 publications

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“…In this paper, the cooperative and competitive relationships that exist in the energy business between the old energy industry and the new energy industry are investigated, and the elements that influence the evolutionary equilibrium strategy are spoken about. A game model was built based on reference [ 18 ], which was based on the progression of competitive entities and the market environment. The model runs numerical simulations and investigates in great detail the underlying reasoning behind the behavior choices made by both of the competing groups in the game.…”

Section: Nei Competitiveness Evaluation Index Systemmentioning

confidence: 99%

[Retracted] A Public Health‐Oriented New Energy Industry Competitiveness Evaluation

Dou

Li²,

2022

Journal of Environmental and Public Health

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This paper develops a regional new energy industry (NEI) competitiveness evaluation index system based on the theoretical framework of the “diamond model” and the unique characteristics of the new energy industry and made an empirical analysis of Jilin province with analytic hierarchy process (AHP) and fuzzy comprehensive evaluation method. The analysis results show that the new energy industry in Jilin Province has a good foundation, and the government’s role, talent support, technological innovation, and market factors are acceptable. However, due to location factors and resource endowments, regional GDP and per capita consumption expenditure are low. The lack of intrinsic motivation of industrial competitive advantage has resulted in the poor overall competitiveness of the new energy industry in Jilin Province. Then, it is advised to take targeted measures to work closely with national NEI development strategy, optimize the industrial technology innovation ability and the talent support, actively guide social capital flows and new energy consumption, optimize regional energy consumption structure and industrial structure by creating a complete NEI chain, and revitalize the whole economy.

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Section: Nei Competitiveness Evaluation Index Systemmentioning

confidence: 99%

[Retracted] A Public Health‐Oriented New Energy Industry Competitiveness Evaluation

Dou

Li²,

2022

Journal of Environmental and Public Health

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“…2023. Paper is available on the website: www.idk.org.rs/journal of energy storage solutions, including the exploration of underground caverns and fuel cell technology [3,4]. On the other hand, biomass combustion, hydroelectric, and geothermal power plants offer relatively stable or cyclical renewable energy [5] However, biomass power plants, despite their potential for compact construction, necessitate substantial quantities of low-energy feedstocks, often requiring significant land areas, unless utilizing waste materials.…”

Section: Introductionmentioning

confidence: 99%

Comparative analysis of geothermal binary ORC systems: performance and environmental considerations for CO2 andwater as geofluids

Izuwa,

Ekwueme,

Okereke

et al. 2024

Zas Mat

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This study considers the process simulation of geothermal binary Organic Rankine Cycle (ORC) systems which utilizes CO2 and water as geofluids for electricity generation. The simulation was performed using Hysys v11 software by using Peng Robinson’s fluid property package. Two dry working fluids including isopentane and n-pentane, were used. The effects of geofluid temperature and working fluid mass flowrate on power generation, as well as the maximum pressure of working fluids were evaluated. The result showed that power generation increases with higher geofluid temperature due to enhanced heat transfer. Isopentane outperformed n-pentane, attributed to its superior thermodynamic properties. CO2 showed better performance as geofluid than water highlighting its superiority, observed in the increased power generation. The unique characteristics of CO2 enable efficient heat transfer at lower temperatures, making it an environmentally friendly and effective choice. Contrarily, the use of water as a geofluid poses some implications for local ecosystems and water resources. From an environmental perspective, CO2 shows greater potential for reduced environmental impact, which aligns with the transition to cleaner energy sources. However, the economic considerations suggest a trade-off, as CO2 projects may entail higher upfront costs compared to water-based systems. Regulatory factors and economic feasibility, therefore, play a crucial role in the choice of geofluid for geothermal power generation.

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“…In cases of no availability of favorable land morphology, such as in flat land terrains, or of low power demand, the alternative option of CAES can be introduced. The total efficiency of the storage cycle in CAES systems is in the range of 50% [30,31], while in PHS it can reach 70% [32,33]. This drawback is anticipated to be handled with the technology of adiabatic CAES, which, however, still faces major practical and technical issues regarding heat storage [34,35].…”

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confidence: 99%

Toward a Renewable and Sustainable Energy Pattern in Non-Interconnected Rural Monasteries: A Case Study for the Xenofontos Monastery, Mount Athos

Katsaprakakis

2024

Sustainability

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The scope of this article is to study and propose optimized electricity production plants powered by renewable energy sources, in the frame of energy transition in non-interconnected, rural monasteries. Energy transition, namely, the transition from fossil fuels to renewables and rational use of energy, constitutes a major component of sustainability. In particular, monasteries constitute a special and unique category of rural communities, given their size and the scale of the electricity demand. As a case study, this work focuses on the Xenofontos Monastery, in Mount Athos. Mount Athos, practically a mountainous peninsula at the North Aegean Sea (central-south Macedonia, Greece), is an independent and self-governed community of 20 different monasteries, with no electrical interconnection between them. The electrification of these monasteries started in the 1980s, with the installation of autonomous small diesel generators. Since 2010, an attempt has been initiated to replace these generators with power production and storage technologies based on renewable energy sources, aiming to approach a more energy-independent and sustainable pattern in the peninsula. The article examines two alternative systems, with small wind turbines and photovoltaic panels as the power production units and small pumped hydro storage or electrochemical batteries as storage technologies. New operation algorithms were developed and the sizing of the systems was accomplished through the computational simulation of the examined plants’ annual operations, aiming at full coverage of the power demand. The article proves that 100% power demand coverage from hydro power plants is possible with the support of pumped storage, achieving a Levelized Cost Of Electricity in the range of 0.22 EUR/kWh. This feature can be reduced at 0.11 EUR/kWh with the support of lithium-ion batteries, yet with annual power demand coverage at 90%.

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Comprehensive thermodynamic analysis of the CAES system coupled with the underground thermal energy storage taking into account global, central and local level of energy conversion

Cited by 31 publications

References 41 publications

[Retracted] A Public Health‐Oriented New Energy Industry Competitiveness Evaluation

[Retracted] A Public Health‐Oriented New Energy Industry Competitiveness Evaluation

Comparative analysis of geothermal binary ORC systems: performance and environmental considerations for CO2 andwater as geofluids

Toward a Renewable and Sustainable Energy Pattern in Non-Interconnected Rural Monasteries: A Case Study for the Xenofontos Monastery, Mount Athos

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