Development and optimisation of energy efficiency for regional network pump station via glass reinforced plastics material: A design and built case study

Electricity plays an important role in our daily life. With this, the energy efficiency is one of the important issues in relation to electricity consumption because of increasing the electricity power demand per annum. A network pump station (NPS) is designed to discharge the sewage from the domestic, commercial and industrial to the sewerage treatment plant (STP). In view of rapid development and increasing of the electricity tariff, a regional network pump station has consumed a lot of electricity nowadays. The energy efficiency of pump station system has been calculated and design. The methodology for the system use is a Hazen-Williams equation that to control the flow rate of sewage in a pipe with the physical properties and the pressure drop caused by friction. The selection of the pipe material use is glass reinforced plastics (GRP) instead of traditional material such as ductile (DI) iron pipe because of it characteristics. This study is focusing on the result comparisons between using a ductile iron (DI) force main pipe and glass reinforced plastics (GRP) force mains pipeline. Then, the performances of variable speed Drive (VSD) in varies speed to enhance energy consumption in network pump station. It is clearly that the VSD is more reliable in term of speed regulation to optimize energy usage by changing the Total Head of Force Main. By applying this method, a network pump station can be optimized the Energy Efficiency further and subsequently will show the reduction of power consumption, electricity bills and carbon emission. As results, it will bring a lot of benefits for longterm application and gives a lot of saving in return of investment (ROI).