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http://dx.doi.org/10.7837/kosomes.2012.18.3.267

A Study on the Pump Efficiency Measurement Using the Thermodynamic Method  

Bae, Cherl-O (Division of Maritime Engineering System, Mokpo National Maritime University)
Vuong, Duc-Phuc (Division of Maritime Engineering System, Mokpo National Maritime University)
Lee, Hwi-Il (Hae Dong Engineering Co. Ltd.)
Publication Information
Journal of the Korean Society of Marine Environment & Safety / v.18, no.3, 2012 , pp. 267-272 More about this Journal
Abstract
Carbon emission generated by energy issues is one of the major problems which all countries concern. The International Energy Agency recommends to improve 15-30[%] of energy efficiency than now. Government has pushed the domestic energy saving policies and incentives and penalties were also given in that direction. Pumps are widely used to transfer fluids and they consume at least 20[%] power of each nation. Their loss of energy is huge if they have been operated at low efficiency for long time. Low efficiency of these pumps is often due to incorrect design or degradation. Pump efficiency can be measured to estimate energy loss. If it is low, the pump may be repaired or replaced with new one. This paper introduces thermodynamic method to measure pump efficiency using only two kinds of sensors for temperature and pressure. It can calculate best efficiency point(BEP) of actual systems easily and fast. Its values were compared with the real performance curve provided by pump maker and we got almost similar performance curves from the repeated experiment.
Keywords
International Energy Agency; Pump efficiency; Thermodynamic method; Best Efficiency Point(BEP); performance curve;
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