Beta
180815

MODELING AND OPERATION OF CENTRIFUGAL CASTING MACHINES FOR DUCTILE CAST IRON PIPES

Article

Last updated: 28 Dec 2024

Subjects

-

Tags

-

Abstract

Centrifugal casting machines are a production machines used to produce ductile cast iron pipes in the casting method in El Nasr Casting Company. The Casting Machines were manu-factured by Thyssen Rheinstahl Technik GmbH [1]. They are driven by separately excited DC motor of a nominal voltage of 400V and nominal power 222 kW.  Lower overall efficiency leads to higher electricity consumption. A brief background on the centrifugal casting process is presented along with typical casting machine electrical drive performance requirements. Motor performance characteristics and control strategies are described for both AC and DC machines. A case study is presented, where simulated measurements were performed on Centrifugal casting machine driven by a DC motor (222 kw) and replaced by AC motor (315 kw). Electrical energy, demand, and cost savings are analyzed. The paper illustrates the difficulties that have been encountered of using DC drives, and presents a study of utilizing AC motor with its variable speed drive. The results indicate the simulated process performance in case of using AC motor. The centrifugal casting machine driven by a AC motor requires less power to operate than the DC drive. On the average AC drive approximately draws 250 A and 60 kw, while the DC drive approximately draws 350 A and 64 kw. The final results are Electrical energy savings 7% and cost savings 10126 LE/yr for one machine

Authors

First Name

Mohamed

Last Name

Shehata

MiddleName

A.

Affiliation

El Nasr Casting Company, Egypt

Email

-

City

-

Orcid

-

Volume

55

Article Issue

1

Related Issue

26049

Issue Date

2016-06-01

Receive Date

2016-03-04

Publish Date

2016-06-01

Page Start

18

Page End

8

Print ISSN

1110-1253

Online ISSN

2735-5500

Link

https://egsen.journals.ekb.eg/article_180815.html

Detail API

https://egsen.journals.ekb.eg/service?article_code=180815

Order

9

Type

Scientific and technological

Type Code

1,881

Publication Type

Journal

Publication Title

Journal of the Egyptian Society of Engineers

Publication Link

https://egsen.journals.ekb.eg/

MainTitle

MODELING AND OPERATION OF CENTRIFUGAL CASTING MACHINES FOR DUCTILE CAST IRON PIPES

Details

Type

Article

Created At

23 Jan 2023