A numerical model is developed to quantify energy head losses occurred in the water
distribution network of Taman Maju, Parit Raja, Johor. A numerical computation has
the advantage over a manual computation when analyzing a complex distribution
network. The programming language used in this study is the Microsoft Visual Basic
6.0. Hardy-Cross method is selected to calculate the total energy head loss incurred
in the looped water distribution network of Taman Maju. The type of pipe used in the
water distribution network of Taman Maju is the unplasticised polyvinyl chloride
(uPVC) type with the roughness coefficient k = 0.0015 mm. Since Taman Maju
consists of terrace houses, the water demand is 1360 litres/unit/day. Three loop
networks are considered, namely loop A, B and C for Taman Maju reticulation
system. The final flow rate in each pipe has been obtained. This model is helpful in
reducing the period of time to calculate the flow rate which is found to be within the
piping system design requirement. If comparison is made between the manual
calculation, it will definitely shows some difference. The final result will be different
because the decimal places fixed are different in manual and mode
