Pump station efficiency testing in Brazil

Reducing pumping costs for a major municipal water company at a downtown clean water pumping station in Sao Paulo

We directly measured the efficiency of three 700CV water distribution pumps using our FREEFLOW portable pump testing system. We yielded immediate knowledge that major energy savings existed – results that were viewed with keen interest by the client. With Brazil an emerging market for us, we were pleased to demonstrate that FREEFLOW could accurately determine real-time pump efficiency.

Updated in 2019: Eighteen months on, our client has seen very significant improvements. Our pump rescheduling recommendations led to immediate savings (savings of more than 13% out of the 15% we forecasted are now being realised); while the least efficient pump we measured was removed and refurbished. Post-refurbishment, the cleaned-up pump now exceeds the manufacturer’s expectations, running at over 80% – a 53% improvement!

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The Sao Paulo pump station where we completed pump efficiency tests

Our results in brief:

  • Savings of between R$160k to R$580k per year available through refurbishment and/or replacement
  • Pump rescheduling would increase operating efficiency by at least 15% (approx R$75k), with no capital outlay
  • By refurbishing 2 pumps station efficiency could be up 42%
  • Installing new pumps could improve pump efficiency from the current best of 75% to an acheivable 86%
  • What happened next? 13% reduction in site-wide energy consumption through refurbishment of one pump, which increased its efficiency by 51%




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