Improved thermophysical characteristics of a new class of ionic liquid plus diethylene glycol/Al2O3+CuO based ionanofluid as a coolant media for hybrid PV/T system

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21220%2F22%3A00360573" target="_blank" >RIV/68407700:21220/22:00360573 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1016/j.tsep.2022.101518" target="_blank" >https://doi.org/10.1016/j.tsep.2022.101518</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.tsep.2022.101518" target="_blank" >10.1016/j.tsep.2022.101518</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Improved thermophysical characteristics of a new class of ionic liquid plus diethylene glycol/Al2O3+CuO based ionanofluid as a coolant media for hybrid PV/T system

Popis výsledku v původním jazyce

The purpose of this experimental research is to develop a new class of nanofluid as a replacement of conventional water based nanofluid for medium temperature range as PV/T coolant application. For the first time, hybridized Al2O3+CuO nanoparticles were dispersed into the binary mixture of ionic liquid (IL) and diethylene glycol (DEG) without the addition of any stabilizing agents or surfactants. The formulated Ionanofluid posed excellent dispersion stability together with better thermal stability compared to water-based nanofluid, as evidenced from thermogravimetric analysis. The experimental thermal conductivity assessment showed a maximum of 41.8% enhancement together with a 31% penalty in pressure drop at 0.15 wt.% concentration. A hybrid PVT system is constructed to numerically examine the effect of Ionanofluid as an active cooling medium under the COMSOL Multiphysics environment. Ionanofluids as coolants in a PVT panel showed a maximum of 69% thermal efficiency at 0.15 wt.% Al2O3+CuO, higher than 63% (0.10 wt.% Al2O3+CuO), 58% (0.05 wt.% Al2O3+CuO), and 56% (pure IL+DEG). The PV panel temperature was reduced from 65 to 40 °C when IL+DEG was replaced with 0.15 wt% Al2O3+CuO. At the same concentrations, an electrical efficiency of nearly 12.7% was observed, representing a 29.91% improvement over IL+DEG at a flow rate of 4LPM. The formulated Ionanofluid performed thermally better than water but somewhat lower than water-based nanofluids like MWCNT/Water. Nevertheless, Ionanofluid's electrical efficiency was better than MWCNT/Water. Ionanofluid can be a viable alternative to water-based nanofluids for medium-temperature-based coolant applications

Název v anglickém jazyce

Improved thermophysical characteristics of a new class of ionic liquid plus diethylene glycol/Al2O3+CuO based ionanofluid as a coolant media for hybrid PV/T system

Popis výsledku anglicky

The purpose of this experimental research is to develop a new class of nanofluid as a replacement of conventional water based nanofluid for medium temperature range as PV/T coolant application. For the first time, hybridized Al2O3+CuO nanoparticles were dispersed into the binary mixture of ionic liquid (IL) and diethylene glycol (DEG) without the addition of any stabilizing agents or surfactants. The formulated Ionanofluid posed excellent dispersion stability together with better thermal stability compared to water-based nanofluid, as evidenced from thermogravimetric analysis. The experimental thermal conductivity assessment showed a maximum of 41.8% enhancement together with a 31% penalty in pressure drop at 0.15 wt.% concentration. A hybrid PVT system is constructed to numerically examine the effect of Ionanofluid as an active cooling medium under the COMSOL Multiphysics environment. Ionanofluids as coolants in a PVT panel showed a maximum of 69% thermal efficiency at 0.15 wt.% Al2O3+CuO, higher than 63% (0.10 wt.% Al2O3+CuO), 58% (0.05 wt.% Al2O3+CuO), and 56% (pure IL+DEG). The PV panel temperature was reduced from 65 to 40 °C when IL+DEG was replaced with 0.15 wt% Al2O3+CuO. At the same concentrations, an electrical efficiency of nearly 12.7% was observed, representing a 29.91% improvement over IL+DEG at a flow rate of 4LPM. The formulated Ionanofluid performed thermally better than water but somewhat lower than water-based nanofluids like MWCNT/Water. Nevertheless, Ionanofluid's electrical efficiency was better than MWCNT/Water. Ionanofluid can be a viable alternative to water-based nanofluids for medium-temperature-based coolant applications

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

20303 - Thermodynamics

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2022

Kód důvěrnosti údajů

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

Název periodika

Thermal Science and Engineering Progress

ISSN

2451-9049

e-ISSN

—

Svazek periodika

2022

Číslo periodika v rámci svazku

10

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

47

Strana od-do

—

Kód UT WoS článku

000884394600004

EID výsledku v databázi Scopus

2-s2.0-85140441029