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120381

NUMERICAL INVESTIGATION OF HEAT TRANSFER AND PRESSURE DROP OF CROSS-FLOW WOVEN WIRE MESH HEAT EXCHANGER

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Last updated: 03 Jan 2025

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Abstract

In this paper, the insertion effect of a woven wire mesh to cross flow heat exchanger will be studied under steady state laminar flow conditions. 3-D numerical model was developed for the bare heat exchanger and the other wire mesh modules. The mesh wire diameter is 2.5 mm, porosity of 0.75, permeability of 10-10 and layer-to-layer spacings of (3,5,10,15,20 and 25 mm). Air flows with velocity range up to 3.5 cm/s through rectangular duct of 50 cm X 25 cm with inlet temperature of 25oC before it is heated with corrugated water tube (19 mm in diameter) with hot water inlet velocity of 1 m/s and temperature of 50 oC. The thermal and hydraulic performance were evaluated. Results showed that an enhancement in overall heat transfer coefficient was achieved of 250 % for the 3 mm spaced module while the air pressure drop increases significantly.
  
فی هذا البحث یتم دراسة تأثیر إدماج شبکة نحاسیة علی مبادل حراری تحت ظروف سریان ثابت صفائحی. و من اجل ذلک تم عمل نموذج ثلاثی الإبعاد للمبادل الحراری.قطر سلک الشبکة النحاسیة ( ٥,۲) مم و المسامیة تساوی ( ٧٥,۰) و نفاذیة تساوی        (۱۰-۱۰) متر۲ والتباعد بین طبقات الشبکة النحاسیة یتراوح من( ۳) إلى  (۲٥) مم. یسری الهواء بسرعة أقصاها ( ٥, ۳) سم\ثانیة خلال مسار ( ٥۰ سم فى ۲٥ سم) بدرجة حرارة ۲٥ درجة مئویة بینما تسری المیاه داخل أنبوبة معرجة ( ۱۹ ) مم بسرعة ( ۱) متر\ثانیة بدرجة حرارة (٥۰) درجة مئویة .تم تقییم الأداء الحراری والهیدرولکی و أظهرت النتائج تحسین یصل إلی( ۲٥۰) % فى معامل انتقال الحرارة الکلی للشبکة النحاسیة ذات التباعد ۳ مم.
 

DOI

10.21608/auej.2020.120381

Authors

First Name

Eslam

Last Name

Usama

MiddleName

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Affiliation

Mechanical power Engineering Department, Faculty of Engineering, Ain Shams University, Cairo, Egypt.

Email

eslamusama2015@gmail.com

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Orcid

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First Name

Nabil

Last Name

Abd el Aziz

MiddleName

-

Affiliation

Mechanical power Engineering Department, Faculty of Engineering, Ain Shams University, Cairo, Egypt.

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City

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Orcid

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First Name

Walid

Last Name

aboelsoud

MiddleName

-

Affiliation

Mechanical power Engineering Department, Faculty of Engineering, Ain Shams University, Cairo, Egypt.

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City

-

Orcid

-

First Name

Ahmed

Last Name

Mohammed

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-

Affiliation

Mechanical power Engineering Department, Faculty of Engineering, Ain Shams University, Cairo, Egypt.

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-

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-

Orcid

-

Volume

15

Article Issue

57

Related Issue

18027

Issue Date

2020-10-01

Receive Date

2020-10-25

Publish Date

2020-10-01

Page Start

1,157

Page End

1,168

Print ISSN

1687-8418

Link

https://jaes.journals.ekb.eg/article_120381.html

Detail API

https://jaes.journals.ekb.eg/service?article_code=120381

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22

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Original Article

Type Code

706

Publication Type

Journal

Publication Title

Journal of Al-Azhar University Engineering Sector

Publication Link

https://jaes.journals.ekb.eg/

MainTitle

NUMERICAL INVESTIGATION OF HEAT TRANSFER AND PRESSURE DROP OF CROSS-FLOW WOVEN WIRE MESH HEAT EXCHANGER

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Article

Created At

22 Jan 2023