The Effect of ECO-Energy Design on Energy Consumption in Pumping Plants

Khayatzadeh, Farid; Ehghaghi, Mir Biuk; Jafari, Moharram

doi:10.30506/ijmep.2023.553251.1876

The Effect of ECO-Energy Design on Energy Consumption in Pumping Plants

Authors

Farid Khayatzadeh ¹

Mir Biuk Ehghaghi ²

Moharram Jafari ²

¹ Ph.D. Candidate, Mechanical Engineering Department, Faculty of Mechanical Engineering, University of Tabriz, Tabriz, Iran

² Associated Professor, Mechanical Engineering Department, Faculty of Mechanical Engineering, University of Tabriz, Tabriz, Iran

10.30506/ijmep.2023.553251.1876

Abstract

In this paper, mathematical model of different pumping plants including two or three centrifugal pumps in parallel connection is developed and simulated by MATLAB/Simulink. The effect of utilizing of variable speed (VS) and constant speed (CS) control on efficiency and energy is studied against different water consumption patterns. In according to results, in plants with double pumps, efficiency is a function of operating points as it varies by different consumption patterns, but in plants with three pumps it varies with a steady algorithm. It is recommended to implement (CS + VS + VS) strategy of control in pumping plant with three centrifugal pumps rather than (VS + VS + CS) as it costs lower in primary expenses of plant construction besides higher reliability, lower maintenance cost and shorter payback time. 10 to 15 percent efficiency increase by all VS control and 5 to 10 percent increase in efficiency is proposed by VS and CS compositional control strategies.

Keywords

Energy saving

Efficiency

Pumping plant

Variable frequency drive

Subjects

Turbomachinery

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