Screening analysis of metal hydride based thermal energy storage systems for concentrating solar power plants

Corgnale, Claudio; Hardy, B.J.; Motyka, Theodore; Zidan, Ragaiy; Teprovich, Joseph A.; Peters, Brent

doi:10.1016/j.rser.2014.07.049

Cited by 123 publications

(105 citation statements)

References 31 publications

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“…8) and Na3AlH6 (Eq. 9), have been investigated as replacements for the higher cost intermetallic hydrides [13,15,81]:…”

Section: Candidate Hydrides For Low-temperature Hydrogen Storagementioning

confidence: 99%

“…Preliminary techno-economic investigations demonstrate high potential of TES based on MH materials to compete with traditional molten salt TES systems based on sensible heat storage. Results reported in the literature [12,13,105,106] show installed cost values on the order of 25-30 $/kWhth for currently available MH materials. The costs for the actual molten salt systems are on the order of 30-32 $/kWhth as reported in Reference [107] which makes the MH based TES a highly competitive solution in terms of economic performance compared to the current systems.…”

Section: Challenges and Outlookmentioning

confidence: 99%

“…As such, research into using metal hydrides for CSP is beginning to intensify with efforts split between: (1) metal hydrides suitable for use with current power tower technologies that operate in the 550 o C to 650 o C range and; (2) metal hydrides that operate in the 650 o C to 800 o C range that are compatible with the next generation of power tower technology being pursued by the U.S. Department of Energy as part of the SunShot research program [10,11]. This research is directed towards identifying promising metal hydrides, testing their H2 sorption properties, designing tanks and test beds with active heat extraction, and testing the metal hydrides under dynamic conditions [7][8][9][12][13][14][15]. Scale-up testing is required to mimic realistic operating conditions and it is clear that the engineering of the metal hydride tank and heat extraction system will be as critical as the properties of the metal hydride itself [14].…”

Section: Introductionmentioning

confidence: 99%

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Metal hydrides for concentrating solar thermal power energy storage

et al. 2016

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The development of alternative methods for thermal energy storage is important for improving the efficiency and decreasing the cost for Concentrating Solarthermal Power (CSP). We focus on the underlying technology that allows metal hydrides to function as Thermal Energy Storage (TES) systems and highlight the current state-of-the-art materials that can operate at temperatures as low as room-temperature and as high as 1100 o C. The potential of metal hydrides for thermal storage is explored while current knowledge gaps about hydride properties, such as hydride thermodynamics, intrinsic kinetics and cyclic stability, are identified. The engineering challenges associated with utilising metal hydrides for high-temperature thermal energy storage are also addressed.

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“…8) and Na3AlH6 (Eq. 9), have been investigated as replacements for the higher cost intermetallic hydrides [13,15,81]:…”

Section: Candidate Hydrides For Low-temperature Hydrogen Storagementioning

confidence: 99%

Section: Challenges and Outlookmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Metal hydrides for concentrating solar thermal power energy storage

et al. 2016

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“…LaNi 5 , TiFe, LiBH 4 and so on) has been studied to achieve hydrogen society. In particular, Ti-based hydrogen storage material is a low price and can absorb and desorbs hydrogen at low pressure and temperature [1][2][3].…”

Section: Introductionmentioning

confidence: 99%

“…In particular, Ti-based hydrogen storage material is a low price and can absorb and desorbs hydrogen at low pressure and temperature [1][2][3]. Concerning the advantages of the Ti-based hydrogen storage material, it could be practical and affordable for stationary applications [4][5][6]. In general, the series need initial activation at high temperature in hydrogen or a vacuum due to their stable passive oxide film which was formed after exposing in air [7][8][9].…”

Section: Introductionmentioning

confidence: 99%

Effect of Tiny Pd Addition to Ti for Their Hydrogenation Properties

Kondo¹,

Takeshita²

2017

Proceedings of the 3rd Annual International Conference on Advanced Material Engineering (AME 2017)

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Abstract. Titanium (Ti) based hydrogen-storage materials can absorb hydrogen under mild conditions. However, the materials could not absorb hydrogen without initial activation, owing to the formation of surface oxide layer. For mitigate the initial activation conditions, addition of Pd to Ti based materials were conducted. In spite of a tiny content of Pd, the addition was effective. In this study, effect of Pd in Ti oxide layer on initial hydrogenation property was investigated. Ti (1-x) Pd x (x=0, 0.002, 0.005, 0.010) alloys were fabricated with an arc-melting machine in an Ar atmosphere. Turnings-like specimens were obtained by milling the ingots with a milling machine for increase of specific surface. Initial hydrogenation properties were carried out with a Sievertstype apparatus. Surface property of Ti 0.990 Pd 0.010 before hydrogenation was carried out by X-ray photoelectron spectroscopy. Pd-added Ti alloys rapidly formed Ti hydride compared with pure Ti. Pd in the oxide film existed as valence state of 0 (Pd 0 ). Because metallic Pd was well-known as catalyst for dissociation of molecular hydrogen, Pd-added Ti alloys can faster absorb hydrogen.

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Impacts, Barriers, and Future Prospective of Metal Hydride‐Based Thermochemical Energy Storage System for High‐Temperature Applications: A Comprehensive Review

Dubey,

Ravi Kumar,

Tiwari

et al. 2024

Energy Tech

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This article summarizes various thermochemical energy storage (TCES) systems based on their thermochemical properties, operating temperature, and storage density. Metal hydride (MH)‐based TCES is a potential energy storage system due to its higher energy storage density (>100 kWh m−3), higher operating temperature (>500 °C), relatively better reaction kinetics, and minimal or no energy losses (theoretically). MHs operate at various temperature ranges, and based on temperature, they are classified as low‐temperature MH and high‐temperature MH. This article highlights potential metal alloys operating above 300 °C, with an energy storage density of more than 100 kWh m−3, suitable for concentrated solar thermal power generation and industrial process heating applications. Magnesium (Mg) alloy‐based hydrides have shown good cyclic stability (up to 1500 cycles) at a temperature above 400 °C. The lower cost of material, higher energy storage capacity, better reversibility, and higher thermal stability of Mg‐based alloys have been explored in several small‐scale experimental investigations. The thermal energy storage (TES) efficiency of MH‐based TCES systems is reported ≈ 90%, which is significantly higher than sensible and latent TES systems. Challenges associated with MH‐based TES systems, such as heat transfer enhancement, cost reduction, and chemical and thermal stability, have been discussed in detail.

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Screening analysis of metal hydride based thermal energy storage systems for concentrating solar power plants

Cited by 123 publications

References 31 publications

Metal hydrides for concentrating solar thermal power energy storage

Metal hydrides for concentrating solar thermal power energy storage

Effect of Tiny Pd Addition to Ti for Their Hydrogenation Properties

Impacts, Barriers, and Future Prospective of Metal Hydride‐Based Thermochemical Energy Storage System for High‐Temperature Applications: A Comprehensive Review

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