Abstract With the continuous requirement for an improvement in tap water quality, decline of quality after is transported through supply pipelines needs to be solved urgently. Pipe scale forms when anti-corrosive lining pipeline damaged, and it has a significant influence on chromaticity turbidity indicators quality. Therefore, reasons damage joint, tee, elbow, other parts that are prone damagi...

Branch pipe T-joints are used to connect and bifurcate hydraulic channels in big power plants size. These components submitted enormous strengths that must be counteracted by integrated structures the T-joint, for this case specified arrangement type "Nun neck". The main objective work is about validate structurally numerical analysis branch T-joint design with reinforcement “Nun Neck” operatio...

We investigate the accuracy of chemical transport in network models for small geometric configurations. Network model have successfully simulated the general operations of large water distribution systems. However, some of the simplifying assumptions associated with the implementation may cause inaccuracies if chemicals need to be carefully characterized at a high level of detail. In particular...

In order to clarify the role of different post-weld heat treatment processes in manufacturing process, welding tests, and finite element analysis (FEA) are carried out for 12C1MoV steel pipes. The simulated temperature field residual stress agree well with measured results, which indicates that simulation method is available. influence process parameters on reduction results further analyzed. I...

Buried water and gas pipe systems form part of critical infrastructure providing essential services to the community. In many global population centres including in Australia, this vital infrastructure has been installed several decades ago, and dealing with frequent pipe failures become a major problem. There are clear evidences that pipe failures significantly depend on pipe strains induced b...

This paper determines most common model of in-pipe robots to derive its degree of freedom in order to compare with the necessary degree of freedom required for a system to move inside pipelines freely in order to derive analytical reason for losing control of in-pipe robots at branched pipe. DOF of most common mechanism in in-pipe robots can be calculated by considering the robot as a parallel ...

OBJECTIVES A water pipe (hookah) is a tobacco smoking tool which is thought to be more harmless than a cigarette, and there are no adequate studies about its hazards to health. Water-pipe smoking is threatening health of the youth in the world today. The objective of this study has been to investigate the carbon monoxide (CO) levels in breath, examine the changes in pulmonary function tests (PF...