Packed bed thermal energy storage: A novel design methodology including quasi-dynamic boundary conditions and techno-economic optimization

Trevisan, Silvia; Jemmal, Y.; Guédez, Rafael; Laumert, Björn

doi:10.1016/j.est.2021.102441

Cited by 34 publications

(12 citation statements)

References 29 publications

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“…

\begin{equation}S\ = \ I{\left( {1 - Dep} \right)}^t\end{equation}

Yearly OPEX costs are dictated by the energy produced or consumed by each component system. The exception to this is the TES system, which is dictated by a fraction of the CAPEX [17]. The total life‐time maintenance cost of each of the systems are multiplied by present value modifiers (PV), which are defined in Appendix , Equations () to .…”

Section: Methodology: Etes/silyzer Modelling and Controlmentioning

confidence: 99%

“…The base equation for LCC, of any constituent ETES/Silyzer system, is given in Equation (17). For simplicity of explanation, total LCCs for the components of the whole ETES/Silyzer system will be considered together.…”

Section: The Variable Cost Of Hydrogen Compression Operation (M Compr...mentioning

confidence: 99%

“…LCC total = I total − S total + PV old tech M total + PV new tech R total + E total (17) A report stated that the cost of hydrogen production could be offset by the sale of the electrolysis by-product oxygen [12]. Table B1 gives the upper and lower estimated cost reductions in hydrogen sale price, due to oxygen sales, for every kilogram of hydrogen produced (c ) (…”

Section: The Variable Cost Of Hydrogen Compression Operation (M Compr...mentioning

confidence: 99%

“…Parameters used for modelling were attained from articles [9–23], which separately explore constraints of LCC for TES, steam turbines, and PEM electrolysers. Other articles have explored the LCOH via electrolysis, with power provided by continuous nuclear or offshore energy sources [12, 24, 25].…”

Section: Introductionmentioning

confidence: 99%

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Large scale low‐cost green hydrogen production using thermal energy storage and polymer electrolyte membrane electrolysis systems

Bachmann

2022

IET Renewable Power Gen

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With increased dominance of renewable energy in developed countries, there is increased frequency of excess electricity and grid inflexibility. Without sufficient energy storage, renewable assets become stranded. With aims for net‐zero carbon emissions, countries are looking to green hydrogen to replace fossil fuels. A combined system of affordable large scale energy storage and electrolysis is proposed to address these issues. An original approach, using low‐cost wholesale grid electricity and thermal energy storage for proton exchange membrane electrolysis, has been modelled. An electricity price control mechanism is used for the operation of an electric thermal energy storage system. A 1600 MW grid connection provides power for resistance heating to charge 45 GWh capacity thermal energy storage, which powers a 20 MW rated steam turbine. This then powers a 17.5 MW electrolyser, and compression system during high‐cost electricity periods. Grid power charges the storage and powers electrolysis during low‐cost periods. Model simulation data allows the calculation of combined system lifecycle costs and levelized cost of hydrogen, which lead to profitability analyses. Results of system simulations give hydrogen costs lower than those of current and projected green hydrogen production methods. Simulation provides evidence that an initial investment of 64.4 million US dollars, could yield 1.14$/kg of hydrogen, 5.2 tonnes/day of hydrogen, and a 230% return on investment capital, through use of excess renewable energy.

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“…

\begin{equation}S\ = \ I{\left( {1 - Dep} \right)}^t\end{equation}

Section: Methodology: Etes/silyzer Modelling and Controlmentioning

confidence: 99%

Section: The Variable Cost Of Hydrogen Compression Operation (M Compr...mentioning

confidence: 99%

Section: The Variable Cost Of Hydrogen Compression Operation (M Compr...mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Large scale low‐cost green hydrogen production using thermal energy storage and polymer electrolyte membrane electrolysis systems

Bachmann

2022

IET Renewable Power Gen

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“…The numerical model and the used discretization method are verified using experimental data published by Meier et al [67] and reprocessed by Hänchen et al [68]. The set of data has been used regularly in the past for model verification [62,68,69]. Since the data were derived from pure sensible thermal energy storage, the term considering the heat of the thermochemical reaction is set to zero for comparison.…”

Section: Model Verificationmentioning

confidence: 99%

Non-Stoichiometric Redox Thermochemical Energy Storage Analysis for High Temperature Applications

et al. 2022

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Concentrated solar power is capable of providing high-temperature process streams to different applications. One promising application is the high-temperature electrolysis process demanding steam and air above 800 °C. To overcome the intermittence of solar energy, energy storage is required. Currently, thermal energy at such temperatures can be stored predominately as sensible heat in packed beds. However, such storage suffers from a loss of usable storage capacity after several cycles. To improve such storage, a one-dimensional packed bed thermal energy storage model using air as a heat transfer medium is set up and used to investigate and quantify the benefit of the incorporation of different thermochemical materials from the class of perovskites. Perovskites undergo a non-stoichiometric reaction extension which offers the utilization of thermochemical heat over a larger temperature range. Three different perovskites were considered: SrFeO3, CaMnO3 and Ca0.8Sr0.2MnO3. In total, 15 vol% of sensible energy storage has been replaced by one perovskite and different positions of the reactive material are analyzed. The effect of reactive heat on storage performance and thermal degradation over 15 consecutive charging and discharging cycles is studied. Based on the selected variation and reactive material, storage capacity and useful energy capacity are increased. The partial replacement close to the cold inlet/outlet of the storage system can increase the overall storage capacity by 10.42%. To fully utilize the advantages of thermochemical material, suitable operation conditions and a fitting placement of the material are vital.

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Numerical investigation of packed granular beds subjected to thermal cycling with application to thermal energy storage systems: a continuous approach

Iliev

2024

Granular Matter

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Packed bed thermal energy storage: A novel design methodology including quasi-dynamic boundary conditions and techno-economic optimization

Cited by 34 publications

References 29 publications

Large scale low‐cost green hydrogen production using thermal energy storage and polymer electrolyte membrane electrolysis systems

Large scale low‐cost green hydrogen production using thermal energy storage and polymer electrolyte membrane electrolysis systems

Non-Stoichiometric Redox Thermochemical Energy Storage Analysis for High Temperature Applications

Numerical investigation of packed granular beds subjected to thermal cycling with application to thermal energy storage systems: a continuous approach

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