A review on nanofluid stability: preparation and application

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F23%3APU150870" target="_blank" >RIV/00216305:26210/23:PU150870 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.scopus.com/record/display.uri?eid=2-s2.0-85174173549&origin=resultslist&sort=plf-f&src=s&sid=116ee0a9b838c765a2501eec270b31a2&sot=b&sdt=b&s=DOI%2810.1016%2Fj.rser.2023.113854%29&sl=31&sessionSearchId=116ee0a9b838c765a2501eec270b31a2&relpos=0" target="_blank" >https://www.scopus.com/record/display.uri?eid=2-s2.0-85174173549&origin=resultslist&sort=plf-f&src=s&sid=116ee0a9b838c765a2501eec270b31a2&sot=b&sdt=b&s=DOI%2810.1016%2Fj.rser.2023.113854%29&sl=31&sessionSearchId=116ee0a9b838c765a2501eec270b31a2&relpos=0</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.rser.2023.113854" target="_blank" >10.1016/j.rser.2023.113854</a>

Jazyk výsledku

angličtina

Název v původním jazyce

A review on nanofluid stability: preparation and application

Popis výsledku v původním jazyce

Due to excellent thermal performance and application prospects, nanofluids are attracting many researchers to pay more attention to new types of heat transfer fluids. However, previous studies have focused on the effects of nanofluids on thermophysical properties without considering the limitation of dispersion stability in practical applications. Excellent nanofluid stability is judged with the zeta potential value above 30 mV. Unstable nanofluids block the fluid flow in heat exchanger channels, which reduces the system performance by over 23 %. Based on a systematic review of improving nanofluid stability, this research discusses the preparation, characterisation, influencing factor, dispersion mechanism, and dispersion method on nanofluid stability. Four methods for improving nanofluid stability are summarised. The nanofluid is stable at pH values between 4 and 9 b y controlling its ionic concentration. The nanofluid concentration is required below 2 % to improve the repulsion between nanoparticles. The stability of the nanofluid is affected by the type and amount of the surfactant, which fails to improve the nanofluid stability at temperature above 60 °C. In addition, the molecular forces between the mixed nanofluids enhance the stability of the nanofluid. This review examines the variation patterns of nanofluid stability and the effect of stability on heat transfer. It is expected to identify some opportunities and demonstrate future challenges in both the in-lab research and the commercialisation of nanofluids.

Název v anglickém jazyce

A review on nanofluid stability: preparation and application

Popis výsledku anglicky

Due to excellent thermal performance and application prospects, nanofluids are attracting many researchers to pay more attention to new types of heat transfer fluids. However, previous studies have focused on the effects of nanofluids on thermophysical properties without considering the limitation of dispersion stability in practical applications. Excellent nanofluid stability is judged with the zeta potential value above 30 mV. Unstable nanofluids block the fluid flow in heat exchanger channels, which reduces the system performance by over 23 %. Based on a systematic review of improving nanofluid stability, this research discusses the preparation, characterisation, influencing factor, dispersion mechanism, and dispersion method on nanofluid stability. Four methods for improving nanofluid stability are summarised. The nanofluid is stable at pH values between 4 and 9 b y controlling its ionic concentration. The nanofluid concentration is required below 2 % to improve the repulsion between nanoparticles. The stability of the nanofluid is affected by the type and amount of the surfactant, which fails to improve the nanofluid stability at temperature above 60 °C. In addition, the molecular forces between the mixed nanofluids enhance the stability of the nanofluid. This review examines the variation patterns of nanofluid stability and the effect of stability on heat transfer. It is expected to identify some opportunities and demonstrate future challenges in both the in-lab research and the commercialisation of nanofluids.

Druh

J_SC - Článek v periodiku v databázi SCOPUS

CEP obor

—

OECD FORD obor

20700 - Environmental engineering

Projekt

<a href="/cs/project/EF15_003%2F0000456" target="_blank" >EF15_003/0000456: Laboratoř integrace procesů pro trvalou udržitelnost</a><br>

Návaznosti

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

Rok uplatnění

2023

Kód důvěrnosti údajů

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

Název periodika

RENEWABLE & SUSTAINABLE ENERGY REVIEWS

ISSN

1364-0321

e-ISSN

—

Svazek periodika

neuveden

Číslo periodika v rámci svazku

188

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

10

Strana od-do

„“-„“

Kód UT WoS článku

—

EID výsledku v databázi Scopus

2-s2.0-85174173549