Record nummer 1793142
Titel artikel Air and gas pockets in sewerage pressure mains
Auteur(s) Lubbers, C.L. ; Clemens, F.
Tijdschrifttitel Water science and technology : a journal of the International Association on Water Pollution Research
Deel(Jaar)Nummer 52(2005)3
Paginering 37 - 44
Annotatie(s) 3 refs
Online full text
Trefwoorden (cab) riolering / lucht / afvalwater / pijpen / druk / rioolwater / stromingsweerstand
Rubrieken Afvalverwerking / Hydrologie
Publicatie type Artikel
Taal Engels
Toelichting (Engels) A recent inventory showed that half of the pressure mains show an increased pressure loss for no directly obvious reason. Many causes may account for the reduction of the system's nominal capacity like an increased wall roughness, scaling or occurrence of free gas in the pipeline. The occurrence of free gas may be caused by degassing of dissolved (bio) gas or by air entrained at the pumps' inlet or at air valves. A research study is started that will focus on three main issues: … The description of the gas-water phenomena in wastewater pressure mains with respect totransportation and dynamic hydraulic behaviour, … A method to diagnose gas problems, and … To overcome future problems by either applying remedial measures or improving the design ofwastewater pressure systems. For this study, two experimental facilities are constructed, a small circuit for the study of multi-phase flow and a second, larger one for the research into diagnostic methods. This paper describes the preliminary results of the experiments in the multi-phase circuit
Betrokken instanties WL Delft Hydraulics
Technische Universiteit Delft, Faculteit der Civiele Techniek en Geowetenschappen, Afdeling Watermanagement
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