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Journal articles on the topic 'Pipe materials'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 July 2025

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1

Atiko Putri, Ni'mah Izati, David Malaiholo, and Septiana Widi Astuti. "EVALUATION OF REMAINING MATERIALS FOR RAILWAY CONSTRUCTION PROJECT." Indonesian Journal of Engineering and Science 5, no. 2 (2024): 055–65. http://dx.doi.org/10.51630/ijes.v5i2.141.

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This study investigates residual materials in the railway construction project. The Fishbone Diagram method identifies factors causing material waste, while the Waste Hierarchy guides material management by contractors. The remaining materials include spun piles, ballast stopper cover plates, wiremesh, concrete pad anchoring systems, and PVC pipes. The quantities are 1306.5 meters of spun pile, 86 ballast stopper cover plates, 4 wire mesh sheets, and a concrete pad anchoring system with 160 e-clips, 160 insulators, 80 rail pads, and 7 pieces of 6-inch diameter PVC pipe, along with 13 pieces of

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2

Liu, Hao, Yiqi Xiao, Kaixin Liu, Youzeng Zhu, and Peng Zhang. "Numerical Simulation on Backfilling of Buried Pipes Using Controlled Low Strength Materials." Applied Sciences 12, no. 14 (2022): 6901. http://dx.doi.org/10.3390/app12146901.

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The backfill quality of a pipeline has an important influence on pipeline operation. When loose backfill is used, the pipeline may be damaged after short term operation. In this study, the numerical simulation analysis of buried pipes was carried out under three conditions: loose backfill around the pipe, dense backfill, and controlled low strength materials (CLSM) backfill. The effects of narrow trench backfilling using CLSM on the force and deformation of pipelines were studied. The results showed that When CLSM was used for buried pipe backfilling, the pressure on the top of the pipe and on

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3

Shan, Lili, Yunyan Pei, Siyang Xu, et al. "Effect of Pipe Materials and Interspecific Interactions on Biofilm Formation and Chlorine Resistance: Turn Enemies into Friends." Water 16, no. 20 (2024): 2930. http://dx.doi.org/10.3390/w16202930.

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Drinking water distribution systems (DWDSs) may be contaminated to various degrees when different microorganisms attach to the pipe walls. Understanding the characteristics of biofilms on pipe walls can help prevent and control microbial contamination in DWDSs. The biofilm formation, interspecific interactions, and chlorine resistance of 10 dual-species biofilms in polyethylene (PE) and cast iron (CI) pipes were investigated in this paper. The biofilm biomass (heterotrophic bacterial plate count and crystal violet) of dual species in CI pipes is significantly higher than that in PE pipes, but

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4

Xuhao, Zhang, Miao Jiafeng, Zhang Shaohuai, and Jian Wenfang. "Study on the Law of Blank and Material Properties on the Free Bending of Pipes." Journal of Engineering Research and Reports 25, no. 8 (2023): 178–86. http://dx.doi.org/10.9734/jerr/2023/v25i8971.

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To explore the impact of various material parameters on the three-dimensional free bending behavior of metal pipes and enhance the quality of such bending processes, this study focused on TP2 copper pipes with dimensions Φ12mm×1mm. Under uniform conditions of process parameters, free bending equipment, and key component characteristics, pipes with varying wall thicknesses and materials were investigated. The evaluation criteria were based on the maximum wall thickness thinning rate and maximum ellipticity of the pipes. The investigation aimed to understand how alterations in different material

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Rahmansyah, Abdul, Zulfikar Zulfikar, and Bobby Umroh. "Manufacture of Water Pipe From Clampshell Powder Materials." JOURNAL OF MECHANICAL ENGINEERING, MANUFACTURES, MATERIALS AND ENERGY 2, no. 2 (2018): 73. http://dx.doi.org/10.31289/jmemme.v2i2.2105.

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<h1>In general, household waste water pipelines use plastic pipes of PVC type that are not environmentally friendly and are relatively expensive. Therefore, this research will design molds and manufacture of composite pipes using raw materials of clampshell powder. The raw material used is clampshell powder with the composition of MgO and CaO compounds which is about 22.28% and 66.70%. The mixture of materials used consisted of clampshell powder with a size of 40 mesh, catalyst, and unsaturated polyester resin as a matrix. The objective of this study is manufacture of water pipes made fr

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Karmiadji, Djoko W., and Gery Setiadi. "ANALISIS PEMBUATAN PIPA BAJA SISTEM DUA BAGIAN LAS ASTM A139 DENGAN MENGGUNAKAN METODA LSAW = MANUFACTUR ANALYSIS DUAL SEAM WELD STEEL PIPE ASTM A139 BY USING LSAW METHODE." Material Komponen dan Konstruksi 14, no. 1 (2014): 29. http://dx.doi.org/10.29122/mkk.v14i1.1652.

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One of the main components of the manufacture of steel pipe is in the form of plate steel sheet, slab or hot roll coil, which of these materials may be made for various types of pipes, among others, seamless, Electric Wire Resistance, Spiral and Longitudinal pipes.The main material used welding steel pipe is a steel plate or hot roll coil. Material procurement dependence becomes an obstacle for welding steel pipe mill, which at this moment in our country's steel mills have not been able to produce material of diameter of 24 "steel pipe used primarily in the oil and gas sector.In this research,

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7

Shi, Xiaolong, Zhi Zhang, Lanjie Wu, Xincai Li, and Zhenwu Zhang. "Corrosion Law of Metal Pipeline in Tahe Oilfield and Application of New Materials." Coatings 11, no. 11 (2021): 1269. http://dx.doi.org/10.3390/coatings11111269.

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Frequent corrosion perforation of metal pipes severely restricts oil and gas fields’ safety production and increases maintenance costs. Therefore, it is imminent to change the characteristics of metal materials fundamentally. In this paper, taking the metal pipe of Northwest Oil and Gas Field in China as an example, for the corrosion environment with high concentrations of H2S, CO2, H2O, Cl−, and O2, the main factors leading to corrosion are analyzed, the corrosion rules and optical materials of the pipe under different environmental and operating conditions are figured out, and the corrosion

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Agustriono, Elfidiah, Kiagus Ahmad Roni,. "Corrosion Analysis of Oil Drilling Pipes On Mobile RIG 42.3 N1500 E In Prabumulih." Journal of Engineering and Scientific Research 2, no. 2 (2020): 74–77. http://dx.doi.org/10.23960/jesr.v2i2.47.

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In the oil, gas, and geothermal drilling industry, the use of drill pipe is very important to increase the length of the drilling depth. Problems that are often encountered in drilling pipes such as broken, bent, and leaking drilling pipes, one of which is caused by corrosion. Corrosion is the degradation of materials (usually metals) due to the electrochemical reaction of these materials with their environment. This study uses a specimen of carbon steel pipe type G105 where this pipe is used in field drilling. From the results of research on the corrosion rate test, the corrosion rate value i

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9

Abdulameer, Layth Saeed, Vladimir A. Orlov, and Nazira T. Dzhumagulova. "Hydraulic studies of pressure pipes made of various materials." Vestnik MGSU, no. 9 (September 2022): 1218–30. http://dx.doi.org/10.22227/1997-0935.2022.9.1218-1230.

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Introduction. To solve the problem of water shortage for irrigation in the city of Kerbala (Iraq), for the first time, a decision was made to use treated wastewater from urban wastewater treatment plants. Transportation of water from treatment facilities to irrigated lands is carried out through a pipeline in a pressure mode. The article compares the results of simulation modeling of WaterCAD V8i at various flow rates in a pressurized water supply system with the results of laboratory studies for three types of pipe materials (100 mm diameter steel pipe with polymer coating, 100 mm diameter po

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Ke, Chang Jun, Shu Ying Wang, Hao Wang, and Bing Yuan. "Effect Analysis of Different Wall Materials on Construction Project Cost." Advanced Materials Research 287-290 (July 2011): 2879–82. http://dx.doi.org/10.4028/www.scientific.net/amr.287-290.2879.

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Economy was compared for same building with price and cost of wall material, the other building materials (such as steel bars and pipe pile) and the cost for building energy efficiency. The results shown, Cost effect of wall material and cost difference of other building materials (such as steel bars and pipe pile) because of wall material weight difference are few for building cost. Building energy efficiency cost effect of wall material is significant for building cost. For high-rise frame structure, autoclaved aerated concrete block is inexpensive wall material.

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11

Shuvalov, Mikhail V., and Dmitry I. Tarakanov. "Using pipes from various materials for water supply pipe line network." Urban construction and architecture 13, no. 1 (2023): 53–59. http://dx.doi.org/10.17673/vestnik.2023.01.07.

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Presents the analysis of data on Russian settlements water supply pipe line networks as of 2016-2022. All the settlements are divided into seven groups depending on the population size. For each group, the distribution of water supply line depending on the material of the pipes is established. The most widespread pipes are steel and cast-iron pipes, which have been widely used in the last 100 years. Schedules for the commissioning of water supply line from various materials by years have been constructed. Over the past 25 years, plastic pipes have become the most widely used. After 2010, they

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Ellis, J. "Prediction of Transient Pressures in Polyethylene Pipes." Proceedings of the Institution of Mechanical Engineers, Part E: Journal of Process Mechanical Engineering 203, no. 1 (1989): 9–14. http://dx.doi.org/10.1243/pime_proc_1989_203_182_02.

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Increasingly sophisticated numerical modelling techniques for the simulation of pipeline pressure transients have been developed over the past decades since the relatively widespread availability of digital computers. Introduction of new pipe materials, in particular plastics, has also taken place. These materials have mechanical characteristics that differ from those of more traditional pipe materials. To make the best use of numerical methods requires that mechanical behaviour and properties of plastics are well understood and documented. This paper describes how polyethylene pipes may diffe

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13

Sriram, V., and B. Kanimozhi. "Investigation of the Effect of Different Materials on Uniform Heat Distribution Over a Solar Collector Pipe." Journal of Computational and Theoretical Nanoscience 17, no. 5 (2020): 2021–23. http://dx.doi.org/10.1166/jctn.2020.8842.

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Collector pipe used in solar power plant is a device for converting water from ambient temperature to the raised temperature which in turn used to rotate turbine blades. The raise in temperature is not that much when compared to thermal or nuclear power plant, so researches are going on for improving the heat carrying capacity of collector pipes. The productivity in pipe directly depends on the factors such as solar radiation incident on it, temperature distribution over the pipe, surrounding temperature, material of the pipeline used, and thickness of the pipe. When comparing to all of such p

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14

Yu, J., D. Kim, and T. Lee. "Microbial diversity in biofilms on water distribution pipes of different materials." Water Science and Technology 61, no. 1 (2010): 163–71. http://dx.doi.org/10.2166/wst.2010.813.

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The effects of pipe materials on biofilm formation potential (BFP) and microbial communities in biofilms were analyzed. Pipe coupons made of six different materials (CU, copper; CP, chlorinated poly vinyl chloride; PB, polybutylene; PE, polyethylene; SS, stainless steel; ST, steel coated with zinc) were incubated in drinking water, mixed water (inoculated with 10% (v/v) of river water) and drinking water inoculated with Escherichia coli JM109 (E. coli), respectively. The highest BFPs were observed from steel pipes, SS and ST, while CU showed the lowest BFP values. Of the plastic materials, the

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15

Faghri, A., and S. Thomas. "Performance Characteristics of a Concentric Annular Heat Pipe: Part I—Experimental Prediction and Analysis of the Capillary Limit." Journal of Heat Transfer 111, no. 4 (1989): 844–50. http://dx.doi.org/10.1115/1.3250795.

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This paper describes the design, testing, and theoretical capillary limit prediction of a new heat pipe configuration, which is the concentric annular heat pipe. The concentric annular heat pipe is made of two concentric pipes of unequal diameters that create an annular vapor space. With this arrangement, capillary wicks can be placed on both the inside of the outer pipe and the outside of the inner pipe. This design significantly increases the heat capacity per unit length compared to conventional heat pipes, since the cross-sectional area of the wick as well as the surface area for heating a

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16

Aprile, Daniel, Samer Al-Banna, Arraventhan Maheswaran, Joshua Paquette, and Mohamad Ziad Saghir. "Storing Energy from External Power Supplies Using Phase Change Materials and Various Pipe Configurations." Processes 9, no. 7 (2021): 1160. http://dx.doi.org/10.3390/pr9071160.

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Phase change materials are commonly used for energy storage. Heat transfer enhancement and heat storage are the two main goals in this paper. A cylindrical pipe covered with phase change material is investigated numerically. Ideally, a high temperature liquid flows through the pipe, resulting in heat transferred to the phase change material. To enhance the heat transfer, various configurations involving the addition of a twisted tape inside of the pipe and the use of helical shape pipes were investigated. A straight pipe with no twisted tape insert was also analyzed and used as a benchmark cas

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17

Liu, Jingqing, Huanyu Chen, Qian Huang, et al. "Characteristics of pipe-scale in the pipes of an urban drinking water distribution system in eastern China." Water Supply 16, no. 3 (2015): 715–26. http://dx.doi.org/10.2166/ws.2015.183.

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Pipes that carry drinking water have gradually aged. Events occurring with increasing frequency, such as substandard water quality in residential taps, red water, and black water, reveal the deterioration of the chemical stability of a drinking water distribution system (DWDS). Pipes in the DWDS serving City S, located in eastern China, were sampled to analyze the concentration and distribution of pollutants in pipe-scale of pipes of different materials, ages and diameters, and the factors (such as materials, age, and diameter) influencing the accumulation of pollutants were also investigated.

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18

Shin, Yoon-Soo, and Junhee Kim. "Automated Dimension Estimation of Steel Pipes Stacked at Construction Sites Using Euclidean Distances Calculated by Overlapping Segmentation." Sensors 22, no. 12 (2022): 4517. http://dx.doi.org/10.3390/s22124517.

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Pipes are construction materials for water and sewage, air conditioning, firefighting, and gas facilities at construction sites. The quantification and identification of pipes stacked at construction sites are indispensable and, thus, are directly related to efficient process management. In this study, an automated CNN-based technique for estimating the diameter and thickness of the pipe in an image is proposed. The proposed method infers the thickness of the pipe through the difference by segmentation, by overlapping the inside and outside circles for a single pipe. When multiple pipes are in

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19

Marček, Ľuboš, Ján Vavro, and Ján Vavro. "Microscopic Analysis of Structure and Wear for Metallic Materials Using SEM." Applied Sciences 14, no. 20 (2024): 9378. http://dx.doi.org/10.3390/app14209378.

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The introduced work deals with the microscopic analysis of metallographically prepared selected metal materials structures, using a scanning electron microscope (SEM). Prepared samples of seamless steel pipes were subjected to a thorough microscopic examination from the outer surface to the inner regions in order to interpret the specific structure, including the change in the inner surfaces due to wear. The experiment demonstrated that the microstructure and character of the surfaces play a key role in the behavior of metallic materials in real conditions of hot water heating. Four pipe sampl

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20

Stefan, Daniela Simina, Magdalena Bosomoiu, and Georgeta Teodorescu. "The Behavior of Polymeric Pipes in Drinking Water Distribution System—Comparison with Other Pipe Materials." Polymers 15, no. 19 (2023): 3872. http://dx.doi.org/10.3390/polym15193872.

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The inner walls of the drinking water distribution system (DWDS) are expected to be clean to ensure a safe quality of drinking water. Complex physical, chemical, and biological processes take place when water comes into contact with the pipe surface. This paper describes the impact of leaching different compounds from the water supply pipes into drinking water and subsequent risks. Among these compounds, there are heavy metals. It is necessary to prevent these metals from getting into the DWDS. Those compounds are susceptible to impacting the quality of the water delivered to the population ei

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21

Wei, Xingya. "Research on the selection of pipe materials for water supply and drainage." E3S Web of Conferences 236 (2021): 02031. http://dx.doi.org/10.1051/e3sconf/202123602031.

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Municipal water supply and drainage project is one of the infrastructures that affects the planning of modern city construction. Therefore, it is required that the municipal water supply and drainage project can achieve economic, social and ecological benefits. As one of the basic elements of engineering project, the quality, performance and price of pipe materials have become a common concern in engineering construction. With the continuous development of modern science and technology, the type of water supply and drainage pipe has increased significantly. This paper briefly analyzes the prop

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22

Li, Yongye, Xihuan Sun, and Xuelan Zhang. "Study of the energy consumption of the piped vehicle hydraulic transportation." Advances in Mechanical Engineering 11, no. 11 (2019): 168781401988554. http://dx.doi.org/10.1177/1687814019885541.

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The piped vehicle hydraulic transportation is a new energy-saving and environmental-friendly technique for transporting materials. To optimize the technical parameters of the piped vehicle hydraulic transportation, the transporting energy consumption of the technique was studied by a combination of theoretical analysis and experiments. Experiments were conducted at six piped vehicles with the diameter–length ratios of 0.4, 0.6, 0.47, 0.7, 0.53, and 0.8, seven flow Reynolds numbers of 102,140, 132,413, 167,014, 200,534, 234,037, 267,556, and 299,993, two transporting loads of 1200 and 1500 g, a

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23

Xu, Xiyan, Yong Cui, Zhangqing Wang, Hongyu Zhang, Caifeng Li, and Kanghua Yu. "Water quality deterioration of reclaimed water produced by reverse osmosis process in large pilot-scale distribution systems of different pipe materials." Journal of Water Reuse and Desalination 11, no. 4 (2021): 610–20. http://dx.doi.org/10.2166/wrd.2021.042.

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Abstract This work reports the effects of five pipe materials on reverse osmosis (RO)-reclaimed water quality in a large pilot-scale distribution system. These materials includes cast iron (CI), cast iron with cement-mortar lining (CML), stainless steel (SS), PVC, and PE. Long-term running tests for 96 hours are conducted with water quality parameters monitored online and analyzed offline. The results showed that red water appeared in CI pipe due to iron corrosion. The pH and TDS increased during the long-term test. Alkali–silica reaction in CML pipe led to a high increase of pH from 6.3 to 11

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Nguyen Thi Tuyet, Trinh, and Hieu Le Trung. "Accelerated corrosion effects on steel pipe pile materials in simulated Nhatrang seawater, Vietnam." Transport and Communications Science Journal 76, no. 1 (2025): 89–101. https://doi.org/10.47869/tcsj.76.1.8.

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Steel pipe piles are widely used in coastal infrastructure due to their high strength and durability. However, in tropical marine environments like Nha Trang, Vietnam, the high chloride content, temperature, and humidity significantly accelerate the corrosion process. Despite their extensive application, no published studies have specifically addressed the corrosion behavior of steel pipe piles in Vietnam's marine environment. This study investigated the accelerated corrosion effects on steel pipe pile materials in a simulated Nha Trang seawater environment, representing typical coastal condit

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Wu, Jiang, Yanjun Li, Hexing Liu, et al. "Comparative Analysis of Friction and Wear Properties of Titanium Alloy Drill Pipe and Steel Drill Pipe." Journal of Physics: Conference Series 2587, no. 1 (2023): 012001. http://dx.doi.org/10.1088/1742-6596/2587/1/012001.

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Abstract During the drilling process of complex structural wells such as horizontal wells, the wear, and tear of the drill pipe can lead to its weakened strength, which is one of the important reasons for the damage accidents of the drill pipe. Titanium alloy drill pipes are widely used in major oil fields as a new type of lightweight drill pipe with high fatigue life. To compare the wear performance of titanium alloy drill pipe with wear-resistant zones and traditional S135 steel drill pipe, this article tested and analyzed the chemical composition, hardness, and metallographic structure of t

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LIM, ELDIN WEE CHUAN, JUN YAO, and YANLIN ZHAO. "ELECTROSTATIC EFFECTS IN PNEUMATIC TRANSPORT OF GRANULAR MATERIALS." International Journal of Modern Physics: Conference Series 19 (January 2012): 351–61. http://dx.doi.org/10.1142/s201019451200894x.

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The methodology of coupling the Discrete Element Method (DEM) with Computational Fluid Dynamics (CFD) was applied for computational studies of pneumatic transport of granular materials through vertical and horizontal pipes in the presence of electrostatic effects. The simulations showed that a thin layer of particles formed and remained adhered to the pipe walls during the pneumatic conveying process due to the effects of strong electrostatic forces of attraction towards the pipe walls. Particle concentrations were generally higher near the pipe walls than at the pipe centre resulting in the r

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Ahmed, Ali Akber, Abbar Khleif Ali, and Nasser Hasein Abbas. "Finite Element Modeling in Friction Stir Welding of Two Dissimilar Pipes." International Journal of Engineering and Advanced Technology (IJEAT) 9, no. 4 (2020): 377–81. https://doi.org/10.35940/ijeat.D6651.049420.

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The Finite Element Modeling has been achieved for two dissimilar pipes welded by friction stir welding for given operating conditions and cases. Moreover, this analysis has been carried out to find the effect of hydrostatic pressure test on the welding area of the pipe by ANSYS Workbench software. In this study dissimilar materials of different pipes were used for FSW, which they were joined as 6063 aluminum alloy pipe with 6082 aluminum alloy pipe and C36000 high-leaded brass pipe with C12200 copper alloy pipe. In this study six parameters were used and with those parameters, eight (8) cases

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Bogatov, N. A., Aleksandr Aleksandrovich Bogatov, and Denis Rinatovich Salikhyanov. "Layered Composite Materials Designed for Higher Corrosion Resistance of Oil Production Equipment." Solid State Phenomena 265 (September 2017): 1011–15. http://dx.doi.org/10.4028/www.scientific.net/ssp.265.1011.

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The oil industry of Russia currently needs innovative development projects aimed at a radical improvement of the performance of material resources and a decrease of their consumption. One of the most promising trends in corrosion protection is the production and use of pipes made of layered composite materials. There are several principal ways of producing them by metal forming processes. The world practice shows that lining technology is reasonable for oil well tubing. Lining consists in simultaneous expansion of pipes made of dissimilar materials, which possess different properties. A pipe o

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Wang, Weixiang, Hongwei Mu, Guodong Mei, et al. "The Characteristics of Spiral Pipe Increasing Resistance and Reducing Pressure and the Amendment Equation of Stowing Gradient." Metals 12, no. 7 (2022): 1105. http://dx.doi.org/10.3390/met12071105.

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To solve the high slurry pressure and severe wear at some sections in backfilling pipelines, this study investigates the solution of using an auxiliary pipe to increase the resistance and reduce the pressure of the mine backfilling pipeline. Using computational fluid dynamics, three auxiliary pipe models, a Z-shaped pipe, a S-shaped pipe and a spiral pipe were constructed and the velocity and pressure distribution characteristics of the filling slurry in the auxiliary pipes were analyzed. The function of friction loss in spiral pipes with different pitches and spiral diameters was established,

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Li, Jing, Peng Yu, Nitin Saini, and Leijun Li. "Crack-Tip Opening Displacement of Girth Welds in a Lean X70 Pipeline Steel." Materials 17, no. 2 (2024): 391. http://dx.doi.org/10.3390/ma17020391.

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Crack-tip opening displacement (CTOD) tests were conducted on girth welds of two API 5L X70 pipeline steels (pipe A and pipe B) to investigate the influence of base metal composition on the fracture toughness of the joint. CTOD measurements across the weld showed that the weld fusion zone had the lowest CTOD values for both pipes, with pipe B having a higher CTOD value than pipe A. Detailed microstructure characterization of the multi-pass weld showed that the fusion zone in both pipes consisted of three distinct zones: the columnar zone, the coarse equiaxed zone, and the fine equiaxed zone. B

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Kelemen, Michal. "MACHINE MOTION OPTIMIZATION." TECHNICAL SCIENCES AND TECHNOLOG IES, no. 3(13) (2018): 82–88. http://dx.doi.org/10.25140/2411-5363-2018-3(13)-82-88.

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Urgency of the research. Inspection of pipe systems are needed, because of prevention of damages and disasters. Also repairing and cleaning can be done without any earth works. Target setting. Pipe machine is suitable to move inside gas pipe, water gas, oil gas, waste water pipes, chemical pipes, steam generator pipes, boiler pipes etc. Actual scientific researches and issues analysis. Wheeled or tracked machines are currently used for motion inside pipes. Wheeled type tends to slipping when wall is dirty or rudiments are exposed on inner side of pipe wall. Uninvestigated parts of general matt

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Abdulameer, Layth Saeed, Nazira Dzhumagulova, Hayder Algretawee, Larisa Zhuravleva, and Musa Habib Alshammari. "Comparison between Hazen-Williams and Darcy-Weisbach equations to calculate head loss through conveyancing treated wastewater in Kerbala city, Iraq." Eastern-European Journal of Enterprise Technologies 1, no. 1 (115) (2022): 36–43. http://dx.doi.org/10.15587/1729-4061.2022.251385.

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Reuse of wastewater has been widespread in this era to support the water sustainability process. Therefore, treated wastewater should be conveyed to suitable places and adopted for different uses. This study presents an empirical relationship between the Darcy-Weisbach and Hazen-Williams equations for four types of pipe material (ductile iron, GRP, concrete, and plastic) by using WaterCAD Version 8i. Two hydraulic models were developed to estimate the head loss in pipes by using different diameters: first, using pipe diameters from 800 mm to 1,200 mm for a flow rate of 1.16 m3/s, second, adopt

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Gamal, Mohamed, Qingyun Di, Jinhai Zhang, Changmin Fu, Shereen Ebrahim, and Amr Abd El-Raouf. "Utilizing Ground-Penetrating Radar for Water Leak Detection and Pipe Material Characterization in Environmental Studies: A Case Study." Remote Sensing 15, no. 20 (2023): 4924. http://dx.doi.org/10.3390/rs15204924.

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Detecting and mapping subsurface utilities in urban areas is crucial for identifying defects or damages in drinking and sewage pipes that can cause leaks. These leaks make it difficult to accurately characterize the pipes due to changes in their reflective properties. This study focused on detecting leaks originating from underground pipes and distinguishing between these various types of pipes. It also aimed to create a visual fingerprint model that displays the reflection characteristics of these pipes during different leak conditions, enabling efficient maintenance and handling procedures o

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Qu, Yiwen, Yi Zhang, Zhitian Wang, Dahai Yang, and Jun Shi. "Load-Bearing Characteristics of PHC Piles Constructed by the Inner Digging Method Based on Ultimate Load Testing and Numerical Simulation." Applied Sciences 13, no. 9 (2023): 5641. http://dx.doi.org/10.3390/app13095641.

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This paper studies the load-bearing characteristics of two prestressed high-strength concrete (PHC) pipe piles constructed by the medium mid-digging and hammering methods. The ultimate load tests and numerical simulations of the pipe piles constructed by both methods were carried out to analyze the ultimate lateral resistance, and ultimate resistance performance characteristics of the two pipe piles and the influence of the wall thickness of the pipe piles on the bearing performance. The test results show that the pipe pile constructed by the middle inner digging method has a higher pile quali

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Abdul Rahman, Noor Leha. "Hydrostatic Pressure Analysis of Yarn Composites Patch for PVC Pipes." Journal of Mechanical Engineering 22, no. 1 (2025): 68–78. https://doi.org/10.24191/jmeche.v22i1.2921.

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The globally high-demand pipeline is prone to operational issues that can be mitigated using composite materials. Damage and cracks in the pipe can lead to structural weakening, leaks, and reduced functionality. This research aims to determine the adhesion strength of polyvinyl (PV) resin through lap joint testing, assess the burst pressure of polyvinyl chloride (PVC) pipes via hydrostatic pressure testing, and evaluate the impact of various wrapping materials on the maximum hydrostatic pressure of damaged PVC pipes. The PVC pipe was introduced to a 20 mm hole diameter as a defect and then pat

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Zhao, Lin, and Ming Lei Liu. "On the Design and Materials Selection of Composite Material Ocean Flexible Pipe." Advanced Materials Research 1090 (February 2015): 22–25. http://dx.doi.org/10.4028/www.scientific.net/amr.1090.22.

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This paper aims to discuss the composite materials application in ocean oil and gas flexible pipes, from the functional principles to the technical methodology in materials selection and pipe structure design.

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Zulfri, Muhammad, Nazaruddin Abdul Rahman, Andre Mahessa, and Muhammad Isra. "Corrosion Rate Analysis and Remaining Life Assessment of Structural Steel in Palm Oil Mill (POM) Environment at Tanjung Seumantoh." JURUTERA - Jurnal Umum Teknik Terapan 10, no. 01 (2023): 16–20. http://dx.doi.org/10.55377/jurutera.v10i01.8270.

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Machines are tools used to simplify work processes. Within a machine, there are several main components that form the framework for its construction. These components must possess strong qualities in order to perform their functions effectively, one of which is the use of steel. Steel is a commonly utilized material in various sectors, including factories. An example of this can be seen in palm oil mills, where numerous components such as wall pipes, generating pipes, and heat pipes are made from steel. However, steel has a tendency to corrode, which can reduce its strength and shorten the lif

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Poiană, D. I., I. Ionel, and G. Drăghici. "Research concerning the influences related to the perforated hole diameters in long pipes." IOP Conference Series: Materials Science and Engineering 1235, no. 1 (2022): 012070. http://dx.doi.org/10.1088/1757-899x/1235/1/012070.

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Abstract The purpose of this paper is to highlight the influence of the dimensional characteristics and mechanical strength characteristics of the pipe material on the diameter of the perforated holes in these long pipes, to maintain the stability of the pipe shape in the perforated area. The research aimed to establish the maximum limit dimensions of holes that can be made in long round pipes with thin walls, through perforating by cold plastic deformation in air, using only a punch applied to on the outside of the pipe, for a particular case of pipe clamping. Following the research, the math

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Li, Huaming, Shiyang Liu, Shuai Xiong, et al. "Laboratory Experimental Study on Influencing Factors of Drainage Pipe Crystallization in Highway Tunnel in Karst Area." Coatings 11, no. 12 (2021): 1493. http://dx.doi.org/10.3390/coatings11121493.

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The crystalline blockage of tunnel drainage pipes in a karst area seriously affects the normal operation of drainage system and buries hidden dangers for the normal operation of the tunnel. In order to obtain the influencing factors and laws of tunnel drainage pipe crystallization in a karst area, based on the field investigation of crystallization pipe plugging, the effects of groundwater velocity, drainage pipe diameter, drainage pipe material, and structure on the crystallization law of tunnel drainage pipe in karst area are studied by indoor model test. The results show that: (1) With the

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Sun, Yufei, Xianbo Peng, and Gang Bi. "Study on S-N Curve and Fatigue Limit of Drill Pipe in Offshore Short-Radius Sidetracking Process." Processes 12, no. 9 (2024): 1828. http://dx.doi.org/10.3390/pr12091828.

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To evaluate the fatigue reliability of different types of drill pipes during an offshore short-radius sidetracking process, the fatigue life and limit of G105, S135, and V150 steel and a new titanium alloy drill pipe were studied in air, high-temperature conditions, drilling fluid, and drilling fluid containing H2S. First, the chemical composition, microstructure, and tensile properties of four kinds of drill pipe materials were tested. Secondly, the fitting effects of different S-N models were evaluated and identified, a fatigue test of four kinds of drill pipe under different environments (a

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Niu, Yu Jing, Li Song, Feng Tao Hu, and Ke Feng Wang. "T91 High Temperature Reheater Piping Leakage Analysis." Advanced Materials Research 605-607 (December 2012): 300–303. http://dx.doi.org/10.4028/www.scientific.net/amr.605-607.300.

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Now T91steel is more and more used in power plant pipe components. The leakage of high temperature reheater pipe was analyzed after surveying the leaking site, checking material composition and observing the microstructure of related materials. We found that a large number of dust at the bottom of the pipe stopped the expansion of high temperature reheater tube rows, the connecting structure between pipes through fins was irrational, and welding fins process was substandard. Cracks were originated from fin-side weld, and extended to the pipe wall , which finally led to a leakage.

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Lee, Jun-Seop, Kyung-Jae Shin, and Jong-Hun Woo. "Experimental and Analytical Study on Non-Damaged Reinforcement Method for Pipe Rack Steel Structures." Buildings 14, no. 9 (2024): 2637. http://dx.doi.org/10.3390/buildings14092637.

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Pipe racks are steel structures that support various pipes transporting materials in industrial complexes. The pipes on pipe racks may transport hazardous substances, which imposes limitations on their structural reinforcement. Therefore, this study aimed to propose methods for reinforcing the joints of pipe rack structures through non-welding and non-drilling techniques. The joints of pipe rack structures were connected by end plates. Initially, this study evaluated the capacity of existing end plates in a real-world experiment and conducted cyclic loading tests with two additional reinforcem

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Layth, Saeed Abdulameer, Dzhumagulova Nazira, Algretawee Hayder, Zhuravleva Larisa, and Habib Alshammari Musa. "Comparison between Hazen-Williams and Darcy-Weisbach equations to calculate head loss through conveyancing treated wastewater in Kerbala city, Iraq." Eastern-European Journal of Enterprise Technologies 1, no. 1 (115) (2022): 36–43. https://doi.org/10.15587/1729-4061.2022.251385.

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Reuse of wastewater has been widespread in this era to support the water sustainability process. Therefore, treated wastewater should be conveyed to suitable places and adopted for different uses. This study presents an empirical relationship between the Darcy-Weisbach and Hazen-Williams equations for four types of pipe material (ductile iron, GRP, concrete, and plastic) by using WaterCAD Version 8i. Two hydraulic models were developed to estimate the head loss in pipes by using different diameters: first, using pipe diameters from 800 mm to 1,200 mm for a flow rate of 1.16 m<su

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Yeshanew, Dessalegn Ahmed, Moera Gutu Jiru, Gulam Mohammed Sayeed Ahmed, et al. "Corrosion Characterization at Surface and Subsurface of Iron-Based Buried Water Pipelines." Materials 14, no. 19 (2021): 5877. http://dx.doi.org/10.3390/ma14195877.

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Water pipe surface deterioration is the result of continuous electrochemical reactions attacking the surface due to the interaction of the pipe surface with environments through the time function. The study presents corrosion characterization at the surface and sub-surface of damaged ductile iron pipe (DIP) and galvanized steel (GS) pipes which served for more than 40 and 20 years, respectively. The samples were obtained from Addis Ababa city water distribution system for the analysis of corrosion morphology patterns at different surface layers. Mountains 8.2 surface analysis software was util

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Cao, Y., and A. Faghri. "Transient Multidimensional Analysis of Nonconventional Heat Pipes With Uniform and Nonuniform Heat Distributions." Journal of Heat Transfer 113, no. 4 (1991): 995–1002. http://dx.doi.org/10.1115/1.2911233.

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A numerical analysis of transient heat pipe performance including nonconventional heat pipes with nonuniform heat distributions is presented. A body-fitted grid system was applied to a three-dimensional wall and wick model, which was coupled with a transient compressible quasi-one-dimensional vapor flow model. The numerical results were first compared with experimental data from cylindrical heat pipes with good agreement. Numerical calculations were then made for a leading edge heat pipe with localized high heat fluxes. Performance characteristics different from conventional heat pipes are ill

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Abdulameer, Abdulameer Layth Saeed, and Nazira T. Dzhumagulova. "Feasibility study of the cost of transporting wastewater for irrigation purposes in the administrative district of Karbala, Iraq." Stroitel'stvo: nauka i obrazovanie [Construction: Science and Education] 11, no. 3 (2021): 151–65. http://dx.doi.org/10.22227/2305-5502.2021.3.9.

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Introduction. The study presents an assessment of the economic feasibility of different pipe materials used to transport treated wastewater. The choice was made between pipes made of ductile iron, glass-fiber reinforced polyester (GRP), concrete, and plastic. Hydraulic calculations of operation of an irrigation water supply and distribution system were made using WaterCAD V8i software. Two options of the system operation, that entail different flow rates and diameters, are considered: if the flow rate is equal to 1.16 m3/s and pipe diameters vary from 800 mm to 1,200 mm, and if the flow rate i

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Borris, Matthias, Heléne Österlund, Jiri Marsalek, and Maria Viklander. "An exploratory study of the effects of stormwater pipeline materials on transported stormwater quality." Water Science and Technology 76, no. 2 (2017): 247–55. http://dx.doi.org/10.2166/wst.2017.195.

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Implications of three sewer pipe materials (concrete, galvanized corrugated steel, and polyvinyl chloride (PVC)) for stormwater quality were explored in laboratory experiments, in which three types of stormwater, SW1–SW3, were circulated in 0.5 m long sewer pipe sections. SW1 and SW2 represented synthetic rainwater, without and with fine street sediment added (CTSS = 150 mg/L), respectively, and SW3 was actual stormwater with the same sediment addition as SW2. Following 20-min runs, with an equivalent distance of 500 m travelled by water particles, a number of statistically significant changes

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Xu, Chang, Yawen Wang, Xiaolin Meng, Qihang Lv, Hui Chen, and Qingdong Wu. "A Multiphysics Simulation Study of the Thermomechanical Coupling Response of Energy Piles." Buildings 14, no. 5 (2024): 1440. http://dx.doi.org/10.3390/buildings14051440.

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The global demand for energy is on the rise, accompanied by increasing requirements for low-carbon environmental protection. In recent years, China’s “double carbon action” initiative has brought about new development opportunities across various sectors. The concept of energy pile foundation aims to harness geothermal energy, aligning well with green, low-carbon, and sustainable development principles, thus offering extensive application prospects in engineering. Drawing from existing research globally, this paper delves into four key aspects impacting the thermodynamic properties of energy p

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Kovalchuk, Vitalii, Roman Rybak, Yuriy Hnativ, et al. "Assessment of the stressed-strained state of a reinforced transport pipe under the combined effect of ambient temperature and static loads." Eastern-European Journal of Enterprise Technologies 6, no. 7 (120) (2022): 6–12. http://dx.doi.org/10.15587/1729-4061.2022.268904.

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The object of this study is a reinforced three-layer transport pipe, which is subjected to the joint action of ambient temperature and static loading of the road subgrade soil. The analytical model for assessing the stressed-strained state of reinforced three-layer pipes, under the combined action of temperature and static loads, has been improved using the theory of elasticity. The stressed-strained state of the reinforced pipe was assessed taking into account the values of the joint action of temperature and loads from vehicles, the physical and mechanical parameters of structural materials,

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Ban, Hoki, Seungjun Roh, and Won-Jun Park. "Performance Evaluation of Buried Concrete Pipe Considering Soil Pressure and Crack Propagation Using 3D Finite Element Analysis." Applied Sciences 11, no. 7 (2021): 3292. http://dx.doi.org/10.3390/app11073292.

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Numerous factors affect the soil pressure distributions around buried pipes, including the shape, size, and stiffness of the pipe, burial depth, and the stiffness of the surrounding soil. Additionally, to some extent, a pipe can benefit from the soil arching effect, where the overburden and surcharge pressure at the crown can be supported by the adjacent soil. As a result, a buried pipe only needs to support the portion of the load that is not transferred to the adjacent soil. This paper presents numerical investigations of the soil pressure distributions around buried concrete pipes and crack

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