Author(s): Teepagorn Chaladtanyakij; Chayanon Choongpon; Peerapong Choopum; Phongphanu Srisomsong; Jittawat Kunanusont; A-Phiwat Kaeophaithun; Pisit Kitnarumit

Linked Author(s):

Keywords: Pparent Loss; Electronic Water Meter; Master Meter Method; Weighing Method

Abstract: Metropolitan Waterworks Authority (MWA) in Thailand has faced water loss termed apparent loss owing to inaccuracy of the mechanical water meter. Hence, the MWA’s master plan is indicated to solve this problem leading to reducing apparent loss approximately 2.4 and 3.7 million cubic meters in year 2020 and 2021 respectively by employing the electronic water meter and meter size reduction. However, this project focuses on the electronic water meter. Then, the accuracy test for the electronic water meter needs providing. From the past to present, this test for the mechanical water meter has been operated by the volumetric method. By using this method, the electronic water meter takes a long time in the accuracy test. Accordingly, two new test systems, employed the weighing (DN15-40) and master meter [Coriolis-mass-flow meter] (DN50-300) methods, can save time 49.4 to 63.8% leading to at least two times productivities. In doing so, as a standard service laboratory of the government sector, revenue around 45,000 USD per year can be received. In summary, the weighing and master-meter methods for the accuracy test can save time 49.4 to 63.8%, gaining at least two times productivities, indirectly reducing apparent loss and earning revenue around 45,000 USD a year.

DOI: https://doi.org/10.3850/iahr-hic2483430201-23

Year: 2024