Techno-economic analysis of nitrogen-doped graphene/water nanofluid in various heat exchangers (A unified analysis)

Yousif M. Alkhulaifi, Shahzada Zaman Shuja, Bekir Sami Yilbas*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

1 Scopus citations

Abstract

Nitrogen-doped graphene (NDG)/water nanofluid is one of the emerging working fluids toward achieving high heating rates in heat transfer devices. In the present study, thermal performance improvement and techno-economic analysis of a double pipe, shell and tube, and plate heat exchangers are presented while incorporating NDG/water nanofluid as a working fluid. The variable properties of NDG nanofluid are incorporated and the influence of nanoparticle concentrations and mass flow rates on the device thermal performance and related costs are evaluated. The findings demonstrate that device heat transfer area and costs are adversely affected by using NDG/water nanofluid in all types of heat exchanging devices considered. An increase in heat transfer area is associated with the decrease of the specific heat capacity of the working fluid. The increase of heat transfer area can be as high as 58.5%, 45.1%, and 67.0% for double pipe, shell and tube, and plate heat exchangers, respectively. In addition, area increase becomes persistent with other types of nanoparticles used in the carrier fluid.

Original languageEnglish
Pages (from-to)760-775
Number of pages16
JournalProceedings of the Institution of Mechanical Engineers, Part A: Journal of Power and Energy
Volume236
Issue number4
DOIs
StatePublished - Jun 2022

Bibliographical note

Publisher Copyright:
© IMechE 2021.

Keywords

  • Nanofluids
  • graphene
  • heat exchangers
  • techno-economic analysis

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Mechanical Engineering

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