Hitungan Diameter Pipa pada Sistem Penyediaan Air Minum sederhana
Abstract: Drinking water
sector is one of the public services which is connected tightly to poverty
decrease. A small community water supply is more suitable if it uses a simple
system which does not need sophisticated planning and construction.
Nevertheless, hydraulics calculation should be always conducted accurately
because it will influence water supply performance. In this case, pipe
hydraulics needs more overview because system reliability depends on pipe
capacity.
This study discusses two methods of pipe diameter calculation at a simple
drinking water supply system. For planning assistance, Directorate General
Cipta Karya-Public Work Ministry issued Technical Guideline Book for Simple
Drinking Water Construction in 2007. One of its chapters discusses about a
method to find pipe diameter based on several tables available, but it is not
given an explanation about basic theory of the tables so there is a doubt for
planners. For the reason, comparison between the use of the tables (Juknis
Method) and Darcy-Weisbach Formula to calculate pipe diameter will be
discussed. Data from 5 villages in Kebumen Regency will be utilized to support
analysis.
The result of procedure for making comparison shows that there is no
significant difference (less than 4%) between the result of calculation by
Darcy-Weisbach Formula and Juknis Method with accurate interpolation. Both of
the methods can be applied with its advantages and disadvantages. It is suggested
that Darcy-Weisbach Formula is always implemented to re-check toward pipe
diameter which is available in the market and will be used in the system.
Penulis: Wahyu Widiyanto
Kode Jurnal: jptindustridd100088