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95713

An Experimental Study of Thermal Performance of an Organic Two-Phase Closed Thermosyphon in Waste Heat Extraction.

Article

Last updated: 04 Jan 2025

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Tags

Mechanical Power Engineering

Abstract

Thermosyphon and passive heat exchanging devices become more popular in industrial applications due to its high capability of transferring heat with low fabrication cost. In this experiment, a thermosyphon made of copper with an internal diameter of 1.8 cm and outside diameter of 2.5 cm was investigated in recovering the wasted heat from a 4-stroke, 4-cylinder diesel engine. Waste heat from the engine comes in form of exhaust which is emitted to the atmosphere at higher temperatures. The evaporator section, which is 40 cm in length, is attached to a duct which has internal fins to guide the exhaust to take a certain path before being emitted into the atmosphere. The evaporator section was filled with various organic working fluids such as acetone, water-acetone mixture, benzene, chloroform, and petroleum ether at various filling ratios (FR) of 25%, 50%, and 100%. The condenser section was 40 cm in length, while the coolant was water passing through a cooling jacket attached to the condenser at various mass flow rates from 1 to 5 gm/sec. The experiment was taken place under three different heat input or engine speeds at 1400, 2100 and 2700 rpm. The best thermal performance of the thermosyphon results when being charged with a filling ratio FR= 50%, this agreed much with the literature reviews even when using an organic working fluid, besides, FR=25% comes in the second place and FR= 100% was the worst. Benzene (C6H6) showed great thermal performance over the others, acetone (C3H6O) comes in the second place, while the worst working fluid among others was petroleum ether (HC3-O-CH3). It was also found that heat exchanging process resulted in a sensible reduction of CO concentration. The maximum average reduction percentage of CO was found to be 19.33% at FR=50% benzene at engine rotational speed of 2700 rpm.

DOI

10.21608/bfemu.2018.95713

Keywords

Thermosyphon, Heat Pipes, Passive heat devices, heat exchanger, Waste heat, Organic working fluids, Diesel Engine, Exhaust, Pollutants

Authors

First Name

Gamal

Last Name

Sultan

MiddleName

Ebrahim

Affiliation

a Professor at the Department of Mechanical Power Engineering, Mansoura University, Mansoura, Egypt

Email

gisultan@mans.edu.eg

City

-

Orcid

-

First Name

Mohamed

Last Name

Awad

MiddleName

Mahmoud

Affiliation

an Associate Professor at the Department of Mechanical Power Engineering, Mansoura University, Mansoura, Egypt

Email

m_m_awad@mans.edu.eg

City

-

Orcid

-

First Name

Ahmed

Last Name

Hegazi

MiddleName

Abd-Elsalam

Affiliation

Mechanical Engineering Department, University of Mansoura, CO 35516, Egypt

Email

ahmedabd_elsallam@yahoo.com

City

-

Orcid

-

First Name

Mohamed

Last Name

Elmougith

MiddleName

Abdo Ahmed

Affiliation

Mechanical Power department, Faculty of Engineering, Mansoura University

Email

mohamed.abdo@students.mans.edu.eg

City

-

Orcid

-

Volume

43

Article Issue

4

Related Issue

14427

Issue Date

2018-12-01

Receive Date

2018-08-27

Publish Date

2018-12-01

Page Start

1

Page End

11

Print ISSN

1110-0923

Online ISSN

2735-4202

Article File

BFEMU_Volume 43_Issue 4_Pages 1-11.pdf

PDF . 2.1MB

Link

https://bfemu.journals.ekb.eg/article_95713.html

Detail API

https://bfemu.journals.ekb.eg/service?article_code=95713

Order

2

Type

Research Studies

Type Code

1,205

Publication Type

Journal

Publication Title

MEJ. Mansoura Engineering Journal

Publication Link

https://bfemu.journals.ekb.eg/

MainTitle

An Experimental Study of Thermal Performance of an Organic Two-Phase Closed Thermosyphon in Waste Heat Extraction.

Details

Type

Article

Created At

22 Jan 2023