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131776

The Effect of Operating Parameters on the Performance of a Steam Ejector Refrigeration System with Barometric Condenser.

Article

Last updated: 04 Jan 2025

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Subjects

-

Tags

Mechanical Power Engineering

Abstract

The main the performance of main concern of this work is to investigate experimentally the effect of operating parameters and primary nozzle position the steam ejector refrigeration system with barometric condenser. In this study, a steam ejector refrigeration system of 7.0 TR (24.42 kW) cooling capacity was used. The boiler pressure of 600 to 800 kPa, condenser temperature of 30 C to 48 C and, evaporator temperature of 6°C to 1/C are used. The primary nozzle is constructed so that it can be movable inside the mixing chamber The experimental results of this work show that the entrainment ratio and coefficient of performance were found to be functions of steam-generator pressure, condenser temperature (back pressure) and evaporator temperature. The coefficient of performance increases with increasing of boiler pressure, evaporator temperature and decreasing of condenser temperature. An increase in COP (cooling capacity) can be achieved by refracting the nozzle from the mixing chamber as the condenser pressure (temperature) increase without changing either the evaporator or boiler temperatures. In practice, the nozzle position may be automatically controlled by monitoring the saturated temperatures and pressures in the boiler, evaporator and condenser. A new experimental correlation was proposed for predicting the coefficient of performance related to the motive steam pressure, condenser pressure and evaporating pressure.

DOI

10.21608/bfemu.2020.131776

Keywords

Steam Ejector, Barometric Condenser-Jet refrigeration

Authors

First Name

Y.

Last Name

Abdel-Ghaffar

MiddleName

E.

Affiliation

Mechanical Power Engineering Department., Faculty of Engineering El-Mansoura University., Mansoura., Egypt

Email

yeghajar@mans.edu.eg

City

Mansoura

Orcid

-

Volume

30

Article Issue

3

Related Issue

19436

Issue Date

2005-09-01

Receive Date

2005-05-11

Publish Date

2020-12-23

Page Start

1

Page End

12

Print ISSN

1110-0923

Online ISSN

2735-4202

Article File

BFEMU_Volume 30_Issue 3_Pages 1-12.pdf

PDF . 184.5kB

Link

https://bfemu.journals.ekb.eg/article_131776.html

Detail API

https://bfemu.journals.ekb.eg/service?article_code=131776

Order

11

Type

Research Studies

Type Code

1,205

Publication Type

Journal

Publication Title

MEJ. Mansoura Engineering Journal

Publication Link

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

MainTitle

The Effect of Operating Parameters on the Performance of a Steam Ejector Refrigeration System with Barometric Condenser.

Details

Type

Article

Created At

22 Jan 2023