Pump Efficiency Monitoring System [PEMS]

Brief Description

CSIO Chennai Centre has developed a low cost Pump Efficiency Monitoring System (PEMS) based on thermodynamic principle using the state of the art instrumentation.

Pumping systems account for nearly 20% of the world's electrical energy demand. Energy and maintenance costs are typically about 90% of a pump's Life Cycle Cost. Studies have shown that 30% to 50% of the energy consumed by pumping systems could be saved through monitoring the efficiency. As the energy costs are soaring high, any effort in energy conservation during pump operations, can reduce the overall demand for electrical supply as well as reduce the burden on the consumer.

The conventional method of calculating pump efficiency off-line is by taking measurements of flow, electrical power consumption, head and the pipe dimensions with different instruments.

PEMS is an on-line pump efficiency-monitoring tool. The PEMS developed by CSIO Chennai uses the principle of thermodynamics. The pump losses are calculated from measurement of inlet and outlet fluid temperature and the dynamic head developed by the pump. Pump Efficiency is then calculated. By monitoring electrical power input to the motor, the pump flow rate is calculated.

Salient Features

• Single unit capable of on-line monitoring of suction temperature & pressure, discharge temperature & pressure, electrical power, head, efficiency & flow rate of the pump.
• Temperature measurement with an accuracy of 0.001°C.
• Power measurement with an accuracy of 1%.
• Capable of configuring the pump parameters.
• Capable of displaying & logging data in *.CSV format for analysis.

Applications

• On-line Flow & Efficiency measurement with an accuracy of 1%.
• Operation of pump with optimum energy consumption.
• Proper Planning & Maintenance of the pump.
• Refurbishment of the pump at the appropriate time periodically to increase the life of the pump.
• Operation of pump at Best Operating Point (BOP).

For further information please contact

Central Scientific Instruments Organisation,
Chandigarh
Website: http://www.csio.res.in/