Borehole Pumping Station
The client contacted Thermancy because they were experiencing pumping issues, supplying storage water tanks at an elevation of 100m.
At the pumping station there are 5 pump sets which pump drinking water up to 2 storage tanks from an on-site sump which is fed from local borehole pumps.
Pumps 1-3 supply one of the storage tanks, and are 6 stage borehole pumps with a duty of 90m3/h at 160m and 2900rpm which are primed with submersible pumps.
Pumps 4-5 supply the other storage tank, and are 11 stage turbine pumps with a duty of 80m3/h at 130m and 1450rpm.
The Acuity pump monitors were fitted to each pump. The suction temperature probe and pressure transducer are immersed in the water sump and fitted near the pump intake.
The discharge temperature and pressure transducer are fitted to the discharge pump at ground level.
Each pump was run in turn, a pump performance test carried out to establish a benchmark for the pumps.
The pump owners had contracted a local engineering company to complete the installation of the sensors, data collection modules and the local HMI. Thermancy provided assistance to allow the local engineering company to remotely collect the data.
Savings of 6.8% and 5.7% from pump scheduling
Savings of over 10% from pump refurbishment
It is recommended that Pump 3 is overhauled or replaced at an early opportunity as it is showing a large efficiency shortfall of 10.4% and its performance is likely to be deteriorating rapidly.
Pump 1 can then be scheduled for overhaul with an efficiency drop of 9.1%. In comparison, Pump 2’s performance is acceptable at this time.
For Pumps 4 & 5 it is recommended that Pump 5 is overhauled or replaced as 11.2% down on efficiency, while Pump 4 is retained as it is showing a relatively good performance with a drop of just 2.6%.