Pumped Thermal Energy Storage Technology (PTES): Review

Rabi, Ayah Marwan; Radulovic, Jovana; Buick, James

doi:10.3390/thermo3030024

Cited by 8 publications

(4 citation statements)

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“…The materials that make up the tank are very important because they must have the ability to store heat at very high temperatures. One of the typical tank materials is molten salt [92].…”

mentioning

confidence: 99%

The Energy Storage Technology Revolution to Achieve Climate Neutrality

Badea,

Șerban,

Anasiei

et al. 2023

Energies

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The intensive exploitation and usage of fossil fuels has led to serious environmental consequences, including soil, water, and air pollution and climate changes, and it has compromised the natural resources available for future generations. In this context, identifying new energy storage technologies can be considered a sustainable solution to these problems, with potential long-term effects. In this work, were analyzed different alternatives that can be suitable for replacing non-renewable sources, where hydrogen, wave, wind, or solar energies were considered. Although they have numerous advantages in terms of usage and substantially reducing the environmental impact, this paper is focused on lithium-ion batteries, whose high performance and safety during operation have made them attractive for a wide range of applications. The study of potential replacement technologies and the technical requirements for the main materials used is the starting point in reducing the environmental footprint, without affecting the technical capabilities, followed by the transition toward economic circularity and climate neutrality.

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“…The materials that make up the tank are very important because they must have the ability to store heat at very high temperatures. One of the typical tank materials is molten salt [92].…”

mentioning

confidence: 99%

The Energy Storage Technology Revolution to Achieve Climate Neutrality

Badea,

Șerban,

Anasiei

et al. 2023

Energies

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“…An improved RTE of 57% was found when multi-stage turbines were introduced [6], and studies involving heat/cold recovery achieved an RTE of up to 70% [17]. Further enhancements involved combining with other cycles, such as the ORC or Brayton, giving an improved RTE of 77% [29], combining with combustion [29], or integrating with an external source such as an NPP [4] or LNG regeneration [41] which have been shown to give an RTE of 76%, 70%, and 70%, respectively. These features can also be combined to give a further improvement; for example, combining an additional Brayton cycle with an integrated combustion process [13] gave an RTE of almost 130%.…”

Section: Summary Of Approaches For Laes Enhancementmentioning

confidence: 99%

“…This intermittency creates a mismatch between the energy generated and the demand on the grid. To address this challenge, energy storage systems have emerged as a viable solution [2][3][4]. Thermal energy storage technologies are currently available at various stages of development.…”

Section: Introductionmentioning

confidence: 99%

“…In conventional large-scale energy storage applications, PHES and CAES are considered to be the most common technologies. These technologies are mature technology for largescale and medium-to-long-term storage applications and are available on the commercial market at relatively low costs [4]. The low energy density of these systems and their geographical restrictions have prompted attention to modern technologies that have been developed to overcome these drawbacks [2].…”

Section: Introductionmentioning

confidence: 99%

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Comprehensive Review of Liquid Air Energy Storage (LAES) Technologies

Rabi,

Radulovic,

Buick

2023

Energies

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In recent years, liquid air energy storage (LAES) has gained prominence as an alternative to existing large-scale electrical energy storage solutions such as compressed air (CAES) and pumped hydro energy storage (PHES), especially in the context of medium-to-long-term storage. LAES offers a high volumetric energy density, surpassing the geographical constraints that hinder current mature energy storage technologies. The basic principle of LAES involves liquefying and storing air to be utilized later for electricity generation. Although the liquefaction of air has been studied for many years, the concept of using LAES “cryogenics” as an energy storage method was initially proposed in 1977 and has recently gained renewed attention. With the growing need for alternative energy storage methods, researchers have increasingly explored the potential of cryogenic media, leading to the development of the first LAES pilot plant and a growing body of research on LAES systems. However, one notable drawback of LAES is its relatively low round-trip efficiency, estimated to be around 50–60% for large-scale systems. However, due to its thermo-mechanical nature, LAES offers versatility and can be easily integrated with other thermal energy systems or energy sources across a wide range of applications. Most of the existing literature on LAES focuses on thermodynamic and economic analyses, examining various LAES configurations, and there is a clear lack of experimental studies in this field. This paper aims to conduct a comprehensive review of LAES technology, with a focus on the performance enhancement of these systems. Future perspectives indicate that hybrid LAES solutions, incorporating efficient waste energy recovery sections, hold the most promise for enhancing the tech-no-economic performance of standalone LAES systems.

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