scholarly journals Parametric analysis and optimization of a combined latent-sensible packed bed energy storage system

2018 ◽  
Author(s):  
Ana Belén Hernández ◽  
Iñigo Ortega-Fernández ◽  
Irantzu Uriz ◽  
Asier Ortuondo ◽  
Iñaki Loroño ◽  
...  
Keyword(s):  
Energy Storage ◽  
Parametric Analysis ◽  
Storage System ◽  
Packed Bed ◽  
Energy Storage System

scholarly journals Parametric analysis of a packed bed thermal energy storage system

2017 ◽  
Author(s):  
Iñigo Ortega-Fernández ◽  
Iñaki Loroño ◽  
Abdessamad Faik ◽  
Irantzu Uriz ◽  
Javier Rodríguez-Aseguinolaza ◽  
...  
Keyword(s):  
Energy Storage ◽  
Thermal Energy ◽  
Thermal Energy Storage ◽  
Parametric Analysis ◽  
Storage System ◽  
Packed Bed ◽  
Energy Storage System ◽  
Thermal Energy Storage System

Dynamic Performance Analysis of Large-Scale Packed Bed Truncated Conical Thermal Energy Storage

2019 ◽  
Author(s):  
Shobhana Singh ◽  
Kim Sørensen
Keyword(s):  
Energy Storage ◽  
Large Scale ◽  
Storage System ◽  
Transient Behavior ◽  
Packed Bed ◽  
Energy Storage System ◽  
Heat Transfer Fluid ◽  
Design Parameters ◽  
Wide Range ◽  
Dynamic Performance Analysis

Abstract In the present paper, a high-temperature packed bed energy storage system of volume 175,000m3 is numerically investigated. The system is a underground packed bed of truncated conical shape, which comprises of rocks as a storage medium and air as a heat transfer fluid. A one-dimensional, two-phase model is developed to simulate the transient behavior of the storage. The developed model is used to conduct a parametric study with a wide range of design parameters to investigate the change in performance during both charging and discharging operation. Results show that the model satisfactorily predicts the dynamic behavior, and the truncated conical shaped storage with a rock diameter of 3cm, insulation thickness up to 0.6m and charging-discharging rate of 553kg/s leads to lower thermal losses and higher energy efficiencies. The paper provides useful insight into the transient performance and efficiency of a large-scale packed bed energy storage system within the range of parameters investigated.

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