Pump Performance & Efficiency
Pumps represent the heart of many simple and complex hydraulic systems, and are often neglected and assumed to operate as per the original design and-or original factory conditions. Accurate pump performance testing and monitoring can yield a host of benefits for a range of objectives, including: maintenance schedules, operational improvements and reliability, capital planning, energy management and optimization, system capacity and optimization, hydraulic model input and validation, design and commissioning, etc.
The Marcor Pump Efficiency Monitor measures pump efficiency and flow rate accurately using the thermodynamic method as described in ISO5198. It allows you to manage your pump and pumping system’s performance in real-time rather than relying on periodic pump test results. Any condition that arises which can lead to energy wastage or pump damage, can be responded to immediately.
From pump testing to pump monitoring systems…
We’re an award-winning team of experts delivering pump system optimisation know-how to industry. We specialise pump testing, pump monitoring and network optimisation for water and wastewater, but work across industries wherever pump systems are in use.
Pump performance monitoring and testing – Condition Monitoring -Predictive maintenance
• Each pump has its own flow meter (and efficiency measurement). The operating points are known, and it is possible to assess and improve the energy efficiency and MTBF (Mean time Between Failures) for every pump of the pump system
We offer a range of performance monitoring equipment for pumps, blowers and turbines. Our pump efficiency meters use the fundamental thermodynamic principle that losses in the machine are primarily transferred to the fluid being pumped, in the form of heat.
Metering pumps by LEWA – for maximum metering accuracy and reliability
LEWA diaphragm and plunger pumps, which are reciprocating positive displacement pumps, provide the greatest possible metering accuracy. They set the standard for safety, reliability and efficiency, especially when it comes to pumping supercritical fluids.
Run your pump at best efficiency and improve process performance
Another common problem you can diagnose easily by determining the actual operating condition of the pump is low net positive suction head available (NPSHA). Low NPSHA can be a major problem for centrifugal pumps. Too often the operating point and NPSHA are calculated prior to facility construction. Pumps are purchased based on the design calculations and usually are not checked again. The factory might test the pumps upon purchase to verify performance and net positive suction head required (NPSHR), but almost never checks the system.
A Simplified Method of Determining the Efficiency of a Motor-Driven Centrifugal Pump
To sidestep these issues, a different equation can be used to determine centrifugal pump efficiency without having to know the liquid’s specific gravity and pump’s output shaft horsepower. This equation allows you to determine a centrifugal pump’s efficiency by only knowing these values: the pump’s discharge pressure (P2) and suction pressure (P1), flow rate (Q), electric motor efficiency (effm), and motor power in kilowatts (kW ).