نتایج جستجو برای: composite pipes

تعداد نتایج: 129021  

Journal: :Buildings 2022

Composite pipes, which are widely used for transporting fluids, have a high strength, good impermeability and strong resistance to external pressure. Because the pipe bears sustained load, its constituent materials usually possess time-dependent properties, creep phenomenon unavoidably occurs in composite pipes long run. The aim of this study is propose analytical viscoelastic solutions, then a...

In this study, the longitudinal and hoop tensile strengths of an industrial ±55° Glass Reinforced Epoxy (GRE) pipe with eighteen layers as well as the associated failure mechanisms are determined. To obtain the longitudinal and hoop tensile strengths values, three specimens are cut from the studied GRE pipe in each direction. A comparison is done between both the strength values, and the fractu...

Journal: :Energies 2023

Proton exchange membrane fuel cell (PEMFC) powered propulsion has gained increasing attention in urban air mobility applications recent years. Due to its high power density, ultra-thin heat pipe technology great potential for cooling PEMFCs, but optimizing the limited internal cavity of remains a significant challenge. In this study, three-dimensional multiphase model cooled PEMFC is built eval...

Journal: :Water research 2003
Ingun Skjevrak Anne Due Karl Olav Gjerstad Hallgeir Herikstad

High-density polyethylene pipes (HDPE), crossbonded polyethylene pipes (PEX) and polyvinyl chloride (PVC) pipes for drinking water were tested with respect to migration of volatile organic components (VOC) to water. The odour of water in contact with plastic pipes was assessed according to the quantitative threshold odour number (TON) concept. A major migrating component from HDPE pipes was 2,4...

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