Long-term impact of air pollutants on thermochemical heat storage materials

Bennici, Simona; Polimann, Téo; Ondarts, M.; Gonze, E.; Vaulot, Cyril; Pierrès, Nolwenn Le

doi:10.1016/j.rser.2019.109473

Cited by 21 publications

(5 citation statements)

References 31 publications

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“…High-temperature heat exchange occurs in the outer layer of the unit, while low-temperature heat is stored and released in the inner layer, achieving cascaded utilization of thermal energy. Cordierite, a solid TES material with advantages of low coefficient of thermal expansion and good chemical stability, [47,48] is used in this system. Its thermophysical parameters are shown in Table 1.…”

Section: System Designmentioning

confidence: 99%

Design and Thermodynamic Investigation of a Waste Heat‐Assisted Compressed Air Energy Storage System Integrating Thermal Energy Storage and Organic Rankine Cycle

Fu,

Sun,

Huo

2023

Energy Tech

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Compressed air energy storage (CAES) technology has attracted growing attention because of the demand for load shifting and electricity cost reduction in energy‐intensive industries. To increase the round‐trip efficiency and energy storage density and simplify the structure of advanced adiabatic CAES (AA‐CAES) systems, a waste heat‐assisted CAES (WH‐CAES) design integrating a tube‐in‐tube thermal energy storage unit and an organic Rankine cycle (ORC) is described herein. Thermodynamic models of the proposed WH‐CAES system are established, and the effects of waste heat temperature, ratio of compression ratios, ratio of expansion ratios, and air storage cavern pressure on the performance of different systems, including AA‐CAES and WH‐CAES with and without ORC, are investigated. The results show that when the waste heat temperature is 500 °C, the input work of the compressors reaches its minimum value at a ratio of compression ratios of 1.14, and the optimal ratio of expansion ratios is 0.39. Under these optimal operating conditions, compared with the AA‐CAES system, the round‐trip storage efficiency, energy storage density, and system energy efficiency of the WH‐CAES system can be increased significantly. The findings validate the potential of the proposed WH‐CAES system.

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Section: System Designmentioning

confidence: 99%

Design and Thermodynamic Investigation of a Waste Heat‐Assisted Compressed Air Energy Storage System Integrating Thermal Energy Storage and Organic Rankine Cycle

Fu,

Sun,

Huo

2023

Energy Tech

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“…Figure 2a depicts the temperature profile used for all the calorimetric experiments. These conditions were selected to be as close to a real-life residential application as possible: 150 °C is the average working temperature that can be reached using a flat-plate solar heat collectors [37,52] and 30 °C is close to the indoor air temperature during the discharging phase [53]. To accurately calculate the dehydration/hydration heat, the dehydration/hydration process for each sample was performed after stabilizing the DSC and TGA signals.…”

Section: Hydration/dehydration Experimentsmentioning

confidence: 99%

Toward new low-temperature thermochemical heat storage materials: Investigation of hydration/dehydration behaviors of MgSO4/Hydroxyapatite composite

Nguyen

Zbair

Dutournié

et al. 2022

Solar Energy Materials and Solar Cells

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“…The quantity of heat released upon discharging and its constancy in time with repeated charging-discharging cycles, as well as the thermal stability of the working materials under specific conditions of the charging step, are key criteria evaluated in the selection of appropriate adsorbents [5,6]. Fundamental laboratory studies or experimental tests performed with different prototypes of heat storage unit have revealed that such classical adsorbents as silica gels, amorphous mesoporous silicas, and zeolites of different types are capable of producing a sufficiently high heat effect while keeping their structural and textural integrity simultaneously (e.g., [5][6][7][8][9][10] and references therein). It appears clear that various materials attain their optimal performance under particular operating conditions, but none of them really stands out significantly above the others.…”

Section: Introductionmentioning

confidence: 99%

“…Natural and modified zeolites have been intensively tested as adsorbents in view of their use in thermochemical heat storage by adsorption of water vapor [9,10,[16][17][18][19]. In general, zeolites are known to adsorb much water vapor already at quite moderate relative pressures of water.…”

Section: Introductionmentioning

confidence: 99%

Heat Release Kinetics upon Water Vapor Sorption Using Cation-Exchanged Zeolites and Prussian Blue Analogues as Adsorbents: Application to Short-Term Low-Temperature Thermochemical Storage of Energy

et al. 2021

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In view of potential uses in short-term thermochemical heat storage by sorption of water vapor, the capacity to release a sufficient heat amount at the appropriate rate of a Prussian blue analogue (PBA) containing hexacyanocobaltate vacancies has been compared with those of 13X type zeolites possessing Na+, Ce3+, Ce4+, or Tb3+ extra-framework compensating cations. The extended structural and surface characterization demonstrated good reproducibility of the preparation procedures performed on a 10-g scale. The adsorbents were tested under dynamic conditions of gas flow with the aid of either a gas flow calorimeter (120 mL h−1 helium flow) to measure the amount and rate of the integral heat release or a laboratory-scale test rig (15,000 to 22,800 mL h−1 nitrogen flow) to monitor the outlet temperature of nitrogen heated by adsorption. For a regeneration temperature of 353 K and a partial H2O pressure of 2.8 kPa in helium, the PBA sample yielded an integral heat ranging between 900 and 1020 kJ kg−1 with a very slow heat release lasting for even 12–14 h. The zeolite-based materials generated between 350 and 950 kJ kg−1 more rapidly (up to 6–7 h), depending on the nature and the content of compensating cations, as well as on the dehydration state achieved during regeneration. With the laboratory-scale test rig, the efficiency of heat extraction by convection was about 65% for Na-13X and only 38% for PBA, and it diminished with decreasing flow rate.

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Long-term impact of air pollutants on thermochemical heat storage materials

Cited by 21 publications

References 31 publications

Design and Thermodynamic Investigation of a Waste Heat‐Assisted Compressed Air Energy Storage System Integrating Thermal Energy Storage and Organic Rankine Cycle

Design and Thermodynamic Investigation of a Waste Heat‐Assisted Compressed Air Energy Storage System Integrating Thermal Energy Storage and Organic Rankine Cycle

Toward new low-temperature thermochemical heat storage materials: Investigation of hydration/dehydration behaviors of MgSO4/Hydroxyapatite composite

Heat Release Kinetics upon Water Vapor Sorption Using Cation-Exchanged Zeolites and Prussian Blue Analogues as Adsorbents: Application to Short-Term Low-Temperature Thermochemical Storage of Energy

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