Delivery of Dynamic Thermal Energy Storage Models and Advanced Reactor Concept Models to the HYBRID Repository

Abstract

This publication details newly created energy storage and reactor models developed within the HYBRID modeling repository as part of the Department of Energy (DOE) Office of Nuclear Energy Integrated Energy Systems (IES) program, led by Idaho National Laboratory (INL).The model development included creating dynamic systems-level models of a pebble-bed high-temperature gas-cooled reactor (HTGR), a sodium fast reactor (SFR), compressed air energy storage (CAES), liquid air energy storage (LAES) and Modelica standard library (MSL)-based two-tank sensible heat storage (SHS) in the IES-based HYBRID repository. These models were developed using the latest publicly available data and incorporating the possibility of control strategy inclusion for use with the existing IES modeling, analysis, and optimization toolset. Simulations showcase the capability of each technology to flexibly operate in ways consistent with IES operation expectations.When these models are available, they can be utilized within different integrated energy park concepts to understand optimal system operation, control, and dispatching. Moreover, given the generic nature of the models, industrial partner technologies can be quickly added to the repository by using the existing models as a basis. Additional dynamic models for thermal energy storage (TES) concepts can be developed and added to the HYBRID repository as needed. Also detailed in this report are future development goals for the HYBRID repository, including adding suites of steady-state models, economic costing information, and reduced-order models (ROMs).

Modelling and analysis of nuclear reactor system coupled with a liquid metal battery

“…The model uses standard Modelica‐based components from the nuclear hybrid energy system (NHES) and transient simulation framework of reconfigurable models (TRANSFORM) packages available in Idaho National Laboratory's HYBRID repository [25] and the fluid package CoolProp [26] to model the sCO2 fluid properties. The details of the core model can be found in [27].…”

Multilevel Analysis, Design, and Modeling of Coupling Advanced Nuclear Reactors and Thermal Energy Storage in an Integrated Energy System

“…In this section, the specific implementation of each case within Modelica is described, focusing on the integration techniques, BOP modeling, and control methods used. For further background on the development of the reactor models and TES model, see [21] and [22].…”