ENERGY SAVING OF WAS TEWATER PUMPING USIN G PROPOSED INTEGRATED DRIVE SYSTEMS

Dahham, Israa Amer

doi:10.30772/qjes.v10i4.495

	ENERGY SAVING OF WAS TEWATER PUMPING USIN G PROPOSED INTEGRATED DRIVE SYSTEMS
Al-Qadisiyah Journal for Engineering Sciences
Volume 10, Issue 4, December 2017, Pages 397-409 PDF (657.67 K)
Document Type: Research Paper
DOI: 10.30772/qjes.v10i4.495
Author
Israa Amer Dahham^*
College of Engineering, University of Al-Qadisiyah, Ad Diwaniyah, Iraq
Abstract
An integrated drive arrangement for a wastewater pumping system was designed and modeled to evaluate the energy saving gained from matching motors with Variable Frequency Drive (VFD) and Programmable Logic Controller (PLC). The proposed arrangement utilizes the affinity laws of centrifugal pumps to predict the performance of a pump under different rotational speed conditions. The specific energy (Es) is used as a measure of the cost effectiveness of the proposed pumping system. Results have shown that a reduction of 10% in pump speed can save 30% in energy of maximum speed. The energy saving potential is carried out for a real-life case study, and a conclusion to replace on-off controllers currently used for most wastewater pumping systems is necessary. The total energy saving account for more than 50% when integrated drive system was applied for a combined sewer pump station.
Keywords
Variable Frequency Drive (VFD); Wastewater pumping systems; Integrated drive systems; Energy saving; Programmable Logic Control (PLC)

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