An experiment featuring waterhammer in viscoelastic pipes is presented in which the effects of pipe-wall viscoelasticity on waterhammer pressures are investigated. A large-scale pipeline apparatus made of polyvinyl chloride (PVC) at Deltares, Delft, The Netherlands, has been used to carry out waterhammer experiments. Tests have been conducted in a reservoir-pipeline-valve system consisting of a...

After the oil field enters high water content period, oil–water mixed fluid in mixing system will gradually change into water-in-oil fluid, while dissolved CO2 causes pH value of to decrease. There is also a certain amount bacteria output with many factors leading intensification corrosion pipeline period. To clarify its law, through transmission material, 20# carbon steel, conditions under act...

Free spans or suspended spans normally occur in subsea pipelines due to the irregularity of seabed and byscouring phenomena around the installed non-buried pipeline. The hydrodynamic around the pipeline canlead to a vibration of the pipeline.This kind of vibration may cause fatigue damage to the pipeline. In orderto study the hydrodynamic around the pipeline, calculating the natural frequency o...

Installation of new pipelines is predicted to grow at a rapid rate over the next twenty years, due in part to the increase use worldwide of combined cycle power generation plant using natural gas a fuel. The need to construct large diameter pipelines over long distances has led to an increased demand to improve the productivity of pipeline girth welding. Many novel techniques have been tried in...

We present Sprite, a bioinformatic data analysis pipeline for detecting single nucleotide polymorphisms (SNPs) in the human genome. A SNP detection pipeline for next-generation sequencing data uses several software tools, including tools for read preprocessing, read alignment, and SNP calling. We target end-to-end scalability and I/O efficiency in Sprite by merging tools in this pipeline and el...

In this paper, we propose a novel algorithm for synthesizing the pipeline structures with variable data initiation intervals (DIIs). Compared to previous researches where the pipeline synthesis is confined to those with fixed DIIs, the proposed algorithm tries to optimize the pipeline latency by fully utilizing hardware resources to which abstract operations in high-level design descriptions ar...

With the rapid development of high-pressure combustible gas pipelines, it brings convenience and also buries potential safety hazards. This paper presents an in-depth exploration thermal radiation hazards fireball accidents caused by leakage provides a reference for prevention control this type accident on-site rescue. Based on basic principle fluid mechanics calculation model rate, three-dimen...

Indonesian Navy (TNI AL) is the main component for Maritime Security and Defence. Because of that, TNI AL needs Indonesian Warship (KRI) to covered Maritime area. The main requirement from KRI is fulfilled by demand. To pock of fuel demand from KRI at Naval Base, it needs a new pipeline of fuel distribution network system. The pipeline network system used for maximum lifetime must be protected ...

A computer program, GeoSteamNet, for the numerical simulation of steam transport in geothermal pipeline networks is written in Visual Studio .NET. The program considers (a) internally consistent thermodynamic properties of water, and (b) a numerical algorithm based on the principles of conservation of mass, linear momentum (Newton’s second law), and energy (the first and second laws of thermody...