title: Storage of Heat, Cold and Electricity.
abstract: A promising energy storage system is presented based on the combination of a heat pump, a heat engine, a hot and a cold storage. It can be operated as a pure bulk electricity storage (alternative to Pumped Heat Electrical Storage (PHES)/Compressed Air Energy Storage (CAES)) or as combined storage of heat, cold and electricity. Both variations have been evaluated using a steady state, thermodynamic model and two promising concepts are proposed: A transcritical CO(2) cycle for the pure electricity storage and a subcritical NH(3) cycle for combined storage of electricity, heat and cold. Parametric studies are used to evaluate the influence of different parameters on the roundtrip efficiency of the storage system.
authors: Group Thermal Energy Storage (TES), Competence Centre Thermal Energy Systems & Process Engineering, Lucerne University of Applied Sciences and Arts, CH-6048 Horw, Switzerland.
authors: Anastasia
authors: A
authors: Stamatiou
authors: Group Thermal Energy Storage (TES), Competence Centre Thermal Energy Systems & Process Engineering, Lucerne University of Applied Sciences and Arts, CH-6048 Horw, Switzerland.
authors: Andreas
authors: A
authors: Ammann
authors: Group Thermal Energy Storage (TES), Competence Centre Thermal Energy Systems & Process Engineering, Lucerne University of Applied Sciences and Arts, CH-6048 Horw, Switzerland.
authors: Andreas
authors: A
authors: Abdon
authors: Group Thermal Energy Storage (TES), Competence Centre Thermal Energy Systems & Process Engineering, Lucerne University of Applied Sciences and Arts, CH-6048 Horw, Switzerland.
authors: Ludger J
authors: LJ
authors: Fischer
authors: Group Thermal Energy Storage (TES), Competence Centre Thermal Energy Systems & Process Engineering, Lucerne University of Applied Sciences and Arts, CH-6048 Horw, Switzerland.
authors: Damian
authors: D
authors: Gwerder
authors: Group Thermal Energy Storage (TES), Competence Centre Thermal Energy Systems & Process Engineering, Lucerne University of Applied Sciences and Arts, CH-6048 Horw, Switzerland. joerg.worlitschek@hslu.ch.
authors: Jörg
authors: J
authors: Worlitschek