Investigations on thermochemical energy storage based on manganese-iron oxide in a lab-scale reactor

Wokon, Michael; Bauer, Thomas; Linder, Marc

doi:10.1063/1.4984457

Cited by 7 publications

(5 citation statements)

References 12 publications

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“…Ensuring the reversibility of TBCs could broaden the range of applications as it could prevent long-term thermal fatigue of components that undergo repeated temperature swings. As an example we recall the initial idea proposed by Wokon et al, who proposed that TBCs can be deposited on the outer part of a tube transporting combustion off-gases (heat-source), whose temperature fluctuates during the time (Figure. ).…”

Section: Resultsmentioning

confidence: 99%

“…Recently, a new concept of TBC that uses the core idea of thermochemical energy storage (TCES) has been introduced. − This new TBC principle was first proposed by Wokon et al, and uses reversible thermochemical reactions to reduce or retard thermal fatigue by buffering the temperature variations and thus protect electronic devices and solar receivers. , When the application reaches the reduction temperature, the thermochemical material stores the energy, keeping the component at a constant temperature until the reaction is over. When the temperature of the system decreases to the oxidation temperature, the enthalpy of the reaction is released, preventing the component from reaching lower temperatures. , This results in the reduction of the thermal fatigue of the component thus extending its service life .…”

Section: Introductionmentioning

confidence: 99%

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Active Thermochemical Barrier Coatings Using Metal Oxides: First Experimental Results

Portilla-Nieto,

Torre,

Kaess

et al. 2024

Langmuir

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A new concept of active thermal coating based on the use of reversible thermochemical reactions is presented in this paper. The new active thermal barrier coating uses redox reactions to buffer the temperature changes that a metallic component may suffer at high temperatures. The heat is stored when the temperature is equal/above the reduction temperature of the active coating (endothermic reaction) and the heat is released when the temperature is equal/below the oxidation temperature (exothermic reaction). The paper describes the development and testing of a reactive thermal barrier coating based on the redox reaction of Co 3 O 4 and its cyclability. Co 3 O 4 was chosen as a reference material due to the high enthalpy of reaction (844 kJ/kg) and redox reversibility. The activity of coatings with 1, 2, and 3 Co 3 O 4 layers was demonstrated by simultaneous thermal analysis, showing good stability for 5 five cycles.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Active Thermochemical Barrier Coatings Using Metal Oxides: First Experimental Results

Portilla-Nieto,

Torre,

Kaess

et al. 2024

Langmuir

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“…In order to enhance the heat transfer rate, an internally circulating fluidized bed has been developed as shown in Figure 10c (Bellan et al, 2018, 2019). Fe‐doped manganese oxide redox material has been developed for TCS (Al‐Shankiti et al, 2019; Gokon, Yawata, et al, 2019; Tescari et al, 2022; Wokon et al, 2017, 2017a). Using TGA (thermogravimetric analyses) and DSC (differential scanning calorimetry), redox performance of Fe‐doped Mn 2 O 3 /Mn 3 O 4 were experimentally investigated.…”

Section: Particle Reactors For Tcs Applicationsmentioning

confidence: 99%

“…(Carrillo et al, 2019). Fe-doping has been found as one of the promising ways to enhance the TCS characteristics of Mn 2 O 3 / Mn 3 O 4 redox couple significantly (Al-Shankiti et al, 2019;Tescari et al, 2022;Wokon et al, 2017Wokon et al, , 2017a. The key advantages of Fe incorporation in Mn oxides are higher energy storage density, faster oxidation rates, which in turn implied more cycling stability and narrowing thermal hysteresis.…”

Section: Manganese Oxidesmentioning

confidence: 99%

A review on high‐temperature thermochemical heat storage: Particle reactors and materials based on solid–gas reactions

Bellan

Kodama

Gokon

et al. 2022

WIREs Energy & Environment

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In order to produce electricity beyond insolation hours and supply to the electrical grid, thermal energy storage (TES) system plays a major role in CSP (concentrated solar power) plants. Current CSP plants use molten salts as both sensible heat storage media and heat transfer fluid, to operate up to 560 C. To meet the future high operating temperature and efficiency, thermochemical storage (TCS) emerged as an attractive alternatives for next generation CSP plants. In these systems, the solar thermal energy is stored by endothermic reaction and subsequently released when the energy is needed by exothermic reversible reaction. This review compares and summarizes different thermochemical storage systems that are currently being investigated, especially TCS based on metal oxides. Various experimental, numerical, and technological studies on the development of particle reactors and materials for hightemperature TCS applications are presented. Advantages and disadvantages of different types heat storage systems (sensible, latent, and thermochemical), and particle receivers (stacked, fluidized, and entrained), have been discussed and reported.

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“…From metal oxides, Co 3 O 4 , CuO, Fe 2 O 3 , and Mn 2 O 3 show remarkable performance to meet the expectations for TCES applications . Among these oxides, Mn 2 O 3 is very promising since it is less expensive, more abundant, more cyclically stable, and environmentally friendly. , Since the reoxidation rates of pure Mn 3 O 4 to Mn 2 O 3 are slightly slow, the combination of the Mn oxides was also tested in some studies to increase the performance of the Mn oxides for thermochemical energy storage applications. ,− Especially, Cu/Mn combined oxides showed a lower redox temperature than the pure Cu or Mn oxides. , In addition, Fe/Mn combined oxides also showed much faster reoxidation rates compared to pure Mn oxides. ,, …”

Section: Introductionmentioning

confidence: 99%

Utilization of Promising Calcium Manganite Oxygen Carriers for Potential Thermochemical Energy Storage Application

Darwish

Leion

2021

Ind. Eng. Chem. Res.

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In this study, oxygen release/consumption behavior of calcium manganese-based oxides (CaMn1–x B x O3, where B: Cu, Fe, Mg and x = 0.1 or 0.2) used in a chemical looping oxygen uncoupling (CLOU) application was investigated. The effect of B-site dopants such as Fe, Mg, and Cu on the oxygen release behavior was also investigated with the aim to use these materials in thermal energy storage (TES). Previous literature studies about CLOU performance of doped calcium manganites were taken into consideration for dopants selection. Calcium manganite-based oxides have been used in chemical looping oxygen uncoupling (CLOU) applications owing to their oxygen release behavior to the gas phase. Studies have revealed that calcium manganite-based oxides show a promising nonstoichiometry over a range of temperatures and oxygen partial pressures, which makes them useful for thermochemical energy storage applications. However, the related literature studies have been mainly focused on their nonstoichiometric characteristics related to temperature and oxygen partial pressure and thermodynamic properties. In this work, thermal analysis and fluidized bed tests were carried out as complementary techniques. CaMn0.8Cu0.2O3 showed the highest oxygen release performance in fluidized bed tests, while CaMn0.9Mg0.1O3 had the best cyclic stability overall among the samples used in the study.

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Investigations on thermochemical energy storage based on manganese-iron oxide in a lab-scale reactor

Cited by 7 publications

References 12 publications

Active Thermochemical Barrier Coatings Using Metal Oxides: First Experimental Results

Active Thermochemical Barrier Coatings Using Metal Oxides: First Experimental Results

A review on high‐temperature thermochemical heat storage: Particle reactors and materials based on solid–gas reactions

Utilization of Promising Calcium Manganite Oxygen Carriers for Potential Thermochemical Energy Storage Application

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