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Title: Modeling Hybrid Nuclear Systems With Chilled-Water Storage

Journal Article · · Journal of Energy Resources Technology
DOI:https://doi.org/10.1115/1.4033858· OSTI ID:1367861
 [1];  [1]
  1. North Carolina State Univ., Raleigh, NC (United States)

Air-conditioning loads during the warmer months of the year are large contributors to an increase in the daily peak electrical demand. Traditionally, utility companies boost output to meet daily cooling load spikes, often using expensive and polluting fossil fuel plants to match the demand. Likewise, heating, ventilation, and air conditioning (HVAC) system components must be sized to meet these peak cooling loads. However, the use of a properly sized stratified chilled-water storage system in conjunction with conventional HVAC system components can shift daily energy peaks from cooling loads to off-peak hours. This process is examined in light of the recent development of small modular nuclear reactors (SMRs). In this paper, primary components of an air-conditioning system with a stratified chilled-water storage tank were modeled in FORTRAN 95. A basic chiller operation criterion was employed. Simulation results confirmed earlier work that the air-conditioning system with thermal energy storage (TES) capabilities not only reduced daily peaks in energy demand due to facility cooling loads but also shifted the energy demand from on-peak to off-peak hours, thereby creating a more flattened total electricity demand profile. Thus, coupling chilled-water storage-supplemented HVAC systems to SMRs is appealing because of the decrease in necessary reactor power cycling, and subsequently reduced associated thermal stresses in reactor system materials, to meet daily fluctuations in cooling demand. Finally and also, such a system can be used as a thermal sink during reactor transients or a buffer due to renewable intermittency in a nuclear hybrid energy system (NHES).

Research Organization:
Idaho National Lab. (INL), Idaho Falls, ID (United States); North Carolina State University, Raleigh, NC (United States)
Sponsoring Organization:
USDOE; INL Laboratory Directed Research and Development (LDRD) Program
Grant/Contract Number:
AC07-05ID14517
OSTI ID:
1367861
Report Number(s):
INL/JOU-15-37012
Journal Information:
Journal of Energy Resources Technology, Vol. 139, Issue 1; ISSN 0195-0738
Publisher:
ASMECopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 7 works
Citation information provided by
Web of Science

References (23)

Quantitative and Qualitative Comparison of Light Water and Advanced Small Modular Reactors journal September 2015
Integration of NuScale SMR With Desalination Technologies conference July 2014
NuScale small modular reactor for Co-generation of electricity and water journal May 2014
Life Cycle Assessment of Hydrogen Production Using Nuclear Energy: An Application Based on Thermochemical Water Splitting journal June 2010
System Evaluation and Economic Analysis of a Nuclear Reactor Powered High-Temperature Electrolysis Hydrogen-Production Plant journal June 2010
Nuclear Hydrogen Production Based on Sulfuric Acid Decomposition Process journal September 1992
Static and Dynamic Modeling Comparison of an Adiabatic Compressed Air Energy Storage System journal May 2016
Role of a Hybrid Energy System Comprising a Small/Medium-Sized Nuclear Reactor and a Biomass Processing Plant in a Scenario with a High Deployment of Onshore Wind Farms journal March 2014
Coupling of copper–chloride hybrid thermochemical water splitting cycle with a desalination plant for hydrogen production from nuclear energy journal February 2010
Load shifting of nuclear power plants using cryogenic energy storage technology journal January 2014
Hybrid systems to address seasonal mismatches between electricity production and demand in nuclear renewable electrical grids journal November 2013
Experimental investigation of chilled water storage technique for peak power shaving journal July 1989
Stratification behaviour in a chilled water storage tank journal November 1987
Experimental investigation of a stratified chilled-water thermal storage system journal August 2011
Numerical and experimental study on the design of a stratified thermal storage system journal January 2004
Experiments on stratified chilled-water tanks journal May 1999
Parametric studies on thermally stratified chilled water storage systems journal January 1999
Dynamic modeling of stratification for chilled water storage tank journal November 2008
Tank size and operating strategy optimization of a stratified chilled water storage system journal October 2011
Cooling Tower Performance Evaluation: Merkel, Poppe, and e-NTU Methods of Analysis journal January 2005
A Numerical Analysis of the Stratification Properties of Chilled Water Storage Tanks Charged at Freezing Point Temperature journal February 1998
Parametric Study of Charging Inlet Diffuser Performance in Stratified Chilled Water Storage Tanks with Radial Diffusers: Part 1-Model Development and Validation journal January 2001
Large eddy simulation of thermocline flow phenomena and mixing during discharging of an initially homogeneous or stratified storage tank journal November 2014

Cited By (1)

Thermal Energy Storage Configurations for Small Modular Reactor Load Shedding journal February 2018