Publication detail

Optimizing the thermal performance of the thermosyphon heat pipe for energy saving with graphene oxide nanofluid

Afsari, Komeil Emami, Mohammad Reza Sarmasti Zahmatkesh, Sasan Klemes, Jiri Jaromir Bokhari, Awais

Original Title

Optimizing the thermal performance of the thermosyphon heat pipe for energy saving with graphene oxide nanofluid

Type

journal article in Web of Science

Language

English

Original Abstract

A thermosyphon heat pipe (THP) involves a vacuum tube with a specific quantity of liquid. Due to its simplicity of design and structure, THP has many applications in heat recovery and renewable energy devices. Prior studies showed that using stable nanofluids can improve THPs' energy efficiency. In this evaluation, the effect of working fluid type, input heat, two types of surfactants, and nanoparticle concentration on the energy efficiency and thermal resistance of a THP was investigated and optimized. A magnetic stirrer and ultrasonic waves were used to create stability. Imaging and spectrophotometric analysis showed that graphene oxide (GO) nanofluid with SDS surfactant is more stable. The most notable decrease in thermal resistance at an input power of 100 W with GO nanofluids compared to distilled water at an F.R. of 50% was 12%. The highest decrease in the evap-orator temperature section was achieved with GO and SDS surfactant at a weight ratio of 0.3% wt, equal to 12.3 degrees C. This was also confirmed by measuring the contact angle. The highest percentage increase in thermal efficiency of THP with the mixture of GO nanoparticles and SDS surfactant in distilled water with 0.3 wt percent and input heat of 200 W was 18% compared to distilled water. In the optimum condition, the highest percentage increase in thermal efficiency of THP with the mixture of GO nanoparticles and SDS surfactant in distilled water with 0.3 wt percent and input heat of 200 W was 18% compared to distilled water.

Keywords

Energy efficiency; Energy saving; Graphene oxide; Nanofluid; Thermal resistance; Thermosyphon heat pipe

Authors

Afsari, Komeil; Emami, Mohammad Reza Sarmasti; Zahmatkesh, Sasan; Klemes, Jiri Jaromir; Bokhari, Awais

Released

1. 7. 2023

Publisher

PERGAMON-ELSEVIER SCIENCE LTDTHE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAN

Location

PERGAMON-ELSEVIER SCIENCE LTDTHE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD OX5 1GB, ENGLAN

ISBN

0360-5442

Periodical

Energy

Number

274

State

United Kingdom of Great Britain and Northern Ireland

Pages count

10

URL

https://www.sciencedirect.com/science/article/pii/S0360544223008162?via%3Dihub

BibTex

@article{BUT187595,
  author="Afsari, Komeil and Emami, Mohammad Reza Sarmasti and Zahmatkesh, Sasan and Klemes, Jiri Jaromir and Bokhari, Awais",
  title="Optimizing the thermal performance of the thermosyphon heat pipe for energy saving with graphene oxide nanofluid",
  journal="Energy",
  year="2023",
  number="274",
  pages="10",
  doi="10.1016/j.energy.2023.127422",
  issn="0360-5442",
  url="https://www.sciencedirect.com/science/article/pii/S0360544223008162?via%3Dihub"
}