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- W4224992892 abstract "Higher shares of renewable energy increase the need for electricity storage. A promising storage technology is Pumped‐Thermal Electricity Storage (PTES): PTES systems transform electricity into heat using a heat pump (HP) and reconvert the heat into electricity using a heat engine. Since both HPs and heat engines require working fluids, maximum performance requires the optimal combination of PTES process and working fluids. Herein this work, the thermo‐economic potential of an Organic Rankine Cycle (ORC)‐based PTES system is analyzed by simultaneously designing both the PTES process and the working fluids used in the HP and the ORC. To rigorously explore the molecular design space, the 1‐stage Continuous‐Molecular Targeting ‐ Computer‐Aided Molecular Design method is employed. Detailed models for costing and sizing of the equipment allow for a thermo‐economic design of the PTES. The computer‐aided molecular design formulation integrates the working fluids as degrees of freedom into the process optimization. For the investigated ORC‐based PTES system with an input power of 60 MW, the optimal process and working fluids minimize the specific investment cost to . The analysis of cost drivers shows that with decreasing compressor cost, the investigated ORC‐based PTES system can become a competitive storage technology." @default.
- W4224992892 created "2022-04-28" @default.
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- W4224992892 date "2022-05-13" @default.
- W4224992892 modified "2023-09-25" @default.
- W4224992892 title "The Thermo‐Economic Potential of ORC‐Based Pumped‐Thermal Electricity Storage: Insights from the Integrated Design of Processes and Working Fluids" @default.
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- W4224992892 doi "https://doi.org/10.1002/ente.202200182" @default.
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