Integration of district heating systems with small modular reactors and organic Rankine cycle including energy storage: Design and energy management optimization

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21730%2F24%3A00381182" target="_blank" >RIV/68407700:21730/24:00381182 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/49777513:23220/24:43973158

Výsledek na webu

<a href="https://doi.org/10.1016/j.enconman.2024.119138" target="_blank" >https://doi.org/10.1016/j.enconman.2024.119138</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.enconman.2024.119138" target="_blank" >10.1016/j.enconman.2024.119138</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Integration of district heating systems with small modular reactors and organic Rankine cycle including energy storage: Design and energy management optimization

Popis výsledku v původním jazyce

The heat-only small modular reactor (SMR) concept is one of the potential carbon-free solutions for replacing fossil fuel-based district heating systems (DHSs). This idea faces an economic challenge (high levelized cost of heat) due to high capital cost and low capacity factor (because of demand fluctuations) in stand-alone operation mode. This study proposes integrating DHSs with heat-only SMRs and organic Rankine cycle (ORC) electricity generation to maximize the system's economic profit. Heat storage, gas boiler, and electricity storage are candidate units for optimizing the system's energy management. The developed optimization method is a mixed-integer nonlinear problem (MINLP). The objective variables are the equipment's design capacities and hour-by-hour operation, and the net present value (NPV) is the objective function. Considering a typical DHS in Czechia (peak of 41 MWt), the optimized integration found comprises a heat-only SMR (Teplator-150 MWt), an ORC power plant of (20 MWe), heat storage of (10000 MWth), a gas boiler of (3.4 MWt), and (20 MWe/120 MWeh) electricity storage. This system and its energy management optimization enhanced the SMR's capacity factor (from 10 % to 83 %), and the NPV changed from a loss of 50 M to a gain of 357 M compared to the basic heat-only supply system. The sensitivity analyses showed that the size and technology of ORC, the interest rate, and the electricity price are the most important factors in the system's economic viability.

Název v anglickém jazyce

Integration of district heating systems with small modular reactors and organic Rankine cycle including energy storage: Design and energy management optimization

Popis výsledku anglicky

The heat-only small modular reactor (SMR) concept is one of the potential carbon-free solutions for replacing fossil fuel-based district heating systems (DHSs). This idea faces an economic challenge (high levelized cost of heat) due to high capital cost and low capacity factor (because of demand fluctuations) in stand-alone operation mode. This study proposes integrating DHSs with heat-only SMRs and organic Rankine cycle (ORC) electricity generation to maximize the system's economic profit. Heat storage, gas boiler, and electricity storage are candidate units for optimizing the system's energy management. The developed optimization method is a mixed-integer nonlinear problem (MINLP). The objective variables are the equipment's design capacities and hour-by-hour operation, and the net present value (NPV) is the objective function. Considering a typical DHS in Czechia (peak of 41 MWt), the optimized integration found comprises a heat-only SMR (Teplator-150 MWt), an ORC power plant of (20 MWe), heat storage of (10000 MWth), a gas boiler of (3.4 MWt), and (20 MWe/120 MWeh) electricity storage. This system and its energy management optimization enhanced the SMR's capacity factor (from 10 % to 83 %), and the NPV changed from a loss of 50 M to a gain of 357 M compared to the basic heat-only supply system. The sensitivity analyses showed that the size and technology of ORC, the interest rate, and the electricity price are the most important factors in the system's economic viability.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20305 - Nuclear related engineering; (nuclear physics to be 1.3);

Projekt

<a href="/cs/project/TN02000012" target="_blank" >TN02000012: Centrum pokročilých jaderných technologií II</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2024

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Energy Conversion and Management

ISSN

0196-8904

e-ISSN

1879-2227

Svazek periodika

322

Číslo periodika v rámci svazku

December

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

20

Strana od-do

—

Kód UT WoS článku

001336124700001

EID výsledku v databázi Scopus

2-s2.0-85206264506