Performance test of the air cooled finned-tube supercritical CO2 sink heat exchanger

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F26722445%3A_____%2F19%3AN0000013" target="_blank" >RIV/26722445:_____/19:N0000013 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/68407700:21220/19:00348458

Výsledek na webu

<a href="https://asmedigitalcollection.asme.org/thermalscienceapplication/article/doi/10.1115/1.4041686/369174/Performance-Test-of-the-AirCooled-FinnedTube" target="_blank" >https://asmedigitalcollection.asme.org/thermalscienceapplication/article/doi/10.1115/1.4041686/369174/Performance-Test-of-the-AirCooled-FinnedTube</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1115/1.4041686" target="_blank" >10.1115/1.4041686</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Performance test of the air cooled finned-tube supercritical CO2 sink heat exchanger

Popis výsledku v původním jazyce

This technical paper presents results of an air-cooled supercritical CO2 (sCO(2)) finned-tube sink heat exchanger (HX) performance test comprising wide range of variable parameters (26-166 degrees C, 7-10 MPa, 0.1-0.32 kg/s). The measurement covered both supercritical and subcritical pressures including transition of pseudocritical region in the last stages of the sink HX. The test was performed in a newly built sCO(2) experimental loop which was constructed within Sustainable Energy (SUSEN) project at Research Centre Rez (CVR). The experimental setup along with the boundary conditions are described in detail; hence, the gained data set can be used for benchmarking of system thermal hydraulic codes. Such benchmarking was performed on the open source Modelica-based code ClaRa. Both steady-state and transient thermal hydraulic analyses were performed using the simulation environment DYMOLA 2018 on a state of the art PC. The results of calculated averaged overall heat transfer coefficients (using Gnielinski correlation for sCO(2) and IPPE or VDI for the air) and experimentally determined values shows reasonably low error of + 25% and - 10%. Hence, using the correlations for the estimation o f the heat transfer in the sink HX with a similar design and similar conditions gives a fair error and thus is recommended.

Název v anglickém jazyce

Performance test of the air cooled finned-tube supercritical CO2 sink heat exchanger

Popis výsledku anglicky

This technical paper presents results of an air-cooled supercritical CO2 (sCO(2)) finned-tube sink heat exchanger (HX) performance test comprising wide range of variable parameters (26-166 degrees C, 7-10 MPa, 0.1-0.32 kg/s). The measurement covered both supercritical and subcritical pressures including transition of pseudocritical region in the last stages of the sink HX. The test was performed in a newly built sCO(2) experimental loop which was constructed within Sustainable Energy (SUSEN) project at Research Centre Rez (CVR). The experimental setup along with the boundary conditions are described in detail; hence, the gained data set can be used for benchmarking of system thermal hydraulic codes. Such benchmarking was performed on the open source Modelica-based code ClaRa. Both steady-state and transient thermal hydraulic analyses were performed using the simulation environment DYMOLA 2018 on a state of the art PC. The results of calculated averaged overall heat transfer coefficients (using Gnielinski correlation for sCO(2) and IPPE or VDI for the air) and experimentally determined values shows reasonably low error of + 25% and - 10%. Hence, using the correlations for the estimation o f the heat transfer in the sink HX with a similar design and similar conditions gives a fair error and thus is recommended.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20303 - Thermodynamics

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2019

Kód důvěrnosti údajů

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

Název periodika

Journal of Thermal Science and Engineering Applications

ISSN

1948-5085

e-ISSN

1948-5093

Svazek periodika

11

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

11

Strana od-do

1-11

Kód UT WoS článku

000465631300014

EID výsledku v databázi Scopus

2-s2.0-85061715934