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Simple Approach to Achieving Efficient Energy Utilisation in Pumping Operations based on Existing Conditions

Kini, Giridhar P and Sreedhar, P N (2005) Simple Approach to Achieving Efficient Energy Utilisation in Pumping Operations based on Existing Conditions. In: National Conference on Energy Management in Changing Business Scenario, Oct 08 - 09, 2005, Rajasthan.

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Abstract

The intersection of the pump curve with the system curve gives the best operating point for the given pump. Shifting of operating point affects not only the pump output, also results in wastage of precious energy. Use of variable speed drives is one of the options to maintain the maximum efficiency levels, thereby necessitating additional investment. If the pump is in operation for long hours every day through the year with the number of such units being small in number, variable speed drives is the best possible option to achieve energy efficiency. But if the industrial utility has large number of pump units in operation for various processes and individual operating time being quite significant, yet important in the process involved, variable speed drives may not be the best possible solution. This paper presents a simple solution for making the pump to work at / or near its operating point based on the exiting system conditions & its given characteristics, with the least possible changes to the working setup in addition to achieving the desired objective of efficient utilization of the available electrical energy. The analysis is supported by a case study.

Item Type: Conference or Workshop Item (Paper)
Uncontrolled Keywords: Centrifugal pump, System efficiency, Pump efficiency, Operating point, Affinity Laws
Subjects: Engineering > MIT Manipal > Electrical and Electronics
Depositing User: MIT Library
Date Deposited: 19 Oct 2016 09:51
Last Modified: 19 Oct 2016 09:51
URI: http://eprints.manipal.edu/id/eprint/147236

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