International Journal on Science and Technology

E-ISSN: 2229-7677   •   Impact Factor: 9.88

A Widely Indexed Open Access Peer Reviewed Multidisciplinary Bi-monthly Scholarly International Journal

Call for Paper Volume 17 Issue 1 January-March 2026 Submit your research before last 3 days of March to publish your research paper in the issue of January-March.
Submit Research Paper Join as a Reviewer

Plagiarism is checked by the leading plagiarism checker TurnItIn

Call for Paper

Volume 17 Issue 1
January-March 2026

Submit your research paper

Indexing Partners
Academia Advanced Sciences Index Bielefeld Academic Search Engine CiteSeer DRJI Google Scholar Independent Search Engine & Directory Network ISI (International Scientific Indexing) Issuu Mendeley Research Networks
RefSeek ResearcherId - Thomson Reuters ResearchGate Scirus Scribd Semantic Scholar UTeM - Universiti Teknikal Malaysia Melaka Wiki for Call for Papers WorldCat Zenodo

CFD Analysis of Heat Transfer Performance in a Parallel-Flow Double-Pipe Heat Exchanger with Interchanged Hot and Cold Fluids Between Inner and Outer Pipes

Author(s) Mr. Shani Singh, Dr. Satnam Singh
Country India
Abstract This study explores the heat-transfer performance of a parallel-flow double-pipe heat exchanger by evaluating how interchanging the hot and cold fluids between the inner and outer pipes affects thermal behaviour. The topic is significant because the hot fluid enters at 355 K and the cold fluid at 298 K, creating a temperature gradient that determines the rate and direction of heat transfer. The methodology involves developing a detailed computational model, generating a refined mesh with boundary-layer inflation, and applying steady-state CFD simulations that capture conjugate heat transfer and turbulence effects while both fluids flow at a uniform velocity of 1.9 m/s. Temperature contours and area-weighted outlet temperatures are extracted to assess how fluid placement influences the overall effectiveness of the exchanger under identical operating conditions. The conclusions indicate that placing the hot fluid in the inner pipe results in stronger radial heat-transfer gradients and a larger temperature reduction, while positioning it in the outer pipe leads to a comparatively smaller drop, demonstrating reduced thermal effectiveness. These results confirm that fluid placement significantly impacts exchanger performance and that assigning the higher-temperature fluid to the inner pipe enhances heat-transfer efficiency. Overall, the study highlights the importance of strategic fluid arrangement and reinforces the value of CFD-based evaluation for optimizing the design and thermal behaviour of parallel-flow double-pipe heat exchangers.
Keywords Heat-Transfer, Parallel-Flow, Double-Pipe, Heat Exchanger, Hot and Cold Fluids, Temperature Gradient, Steady-State CFD Simulations and Area-Weighted Outlet Temperatures
Field Engineering
Published In Volume 13, Issue 3, July-September 2022
Published On 2022-09-10
View / Download PDF File

Share this


CrossRef

CrossRef DOI is assigned to each research paper published in our journal.

IJSAT DOI prefix is
10.71097/IJSAT

Downloads
Research Paper Format Copyright Permission Form and Undertaking Form Cover Page Vol 16 Isu 3Cover Page Vol 16 Isu 2Cover Page Vol 16 Isu 1

All research papers published on this website are licensed under Creative Commons Attribution-ShareAlike 4.0 International License, and all rights belong to their respective authors/researchers.

CC-BY-SA Open Access

About IJSAT
Fees & Payment
Current Issue
Publication Archive 		Submit Research Paper
Track Submission Status
Publication Guidelines
Publication Ethics
Peer Review & Plagiarism 		Join as a Reviewer
Editors & Reviewers
Reviewer Referral Program
Get Reviewer Membership Certi. 		Website/Journal Policies
Usage Policy
Content Policies
Privacy Policy
Contact Us Message on WhatsApp +91-9687-182-185 editor@ijsat.org