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1843 articles for “Composites”
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The Effects of Hydro Confining Pressure on the Flow Properties of Sandstone and Carbonate Rocks
Abstract: There is a significant effect of the hydro confining pressure of the core holder on the flowing properties of the formation rocks. This effect is caused due to the mechanical elastic deformation of the core when carrying out laboratory studies of the water shutoff and polymer compositions. Consequently, this deformation will cause changing in the permeability and voids storage capacity of the studied core samples. Therefore, under the laboratory conditions …
Published in Journal of Petroleum Engineering & Technology · Vol. 7, Issue 1, 2017 · pp. 44–47 Read article
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Establishment of Wax Deposition Index from Saturates, Aromatics, Resins, Asphaltenes Analysis
Abstract: Saturates, aromatics, resins, asphaltenes (SARA) analysis is one method of characterizing crude oils. It is versatile because it can apply to many components of the crude oil. SARA analysis furnishes one with the composition of any crude and ultimately gives an idea of the potential of the crude oil to precipitate and deposit wax. This analysis method usually breaks crude oil down into four components (saturates, aromatics, resins and asphaltenes) …
Published in Journal of Petroleum Engineering & Technology · Vol. 6, Issue 1, 2016 · pp. 1–8 Read article
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Performance of Equation-of-State for Hydrocarbon Dew Point Control in Gas Flow-line in a Nigerian Field
Abstract: Associated gas in a flow-line in a Nigerian field was suspected to be accountable for unaccounted-for gas in the flow-station. Gas molecular compositions of Low Pressure suction gas and Injection Discharge gas for operating conditions of pressure and temperature from the field were analysed by the use of Soave-Redlich Kwong and Peng-Robinson Equations of State with PVTp thermodynamic software. The phase envelope predicted the Hydrocarbon dew point(s) observable from the …
Published in Journal of Petroleum Engineering & Technology · Vol. 9, Issue 1, 2019 · pp. 7–13 Read article
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Relative Permeability Study in Part of Geleki Oil field of Upper Assam Basin
Abstract: Relative permeability is a critical parameter for evaluation of reservoir performance. Relative permeability is a direct measure of the ability of the porous medium to allow flow of one fluid when two or more fluids are present. This flow property is the composite effect of pore-geometry, wettability, fluid saturation, saturation history, reservoir temperature, reservoir pressure, overburden pressure, rock-types, porosity and permeability types. The relative permeability curves are very important in …
Published in Journal of Petroleum Engineering & Technology · Vol. 5, Issue 2, 2015 · pp. 9–14 Read article
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Bio Solvent EOR: Performance Assessment of Plant Extracts as Asphaltene Inhibitor
Abstract: Changes in pressure and temperature during oil production and transportation most notably during CO2 injection for enhanced recovery could lead to changes in the oil composition and deposition of asphaltene. Deposition of asphaltene near the wellbore region, production tubing and production facilities could cause severe flow assurance problem. Physical removal of asphaltene is costly and in most cases it is not preferred. A more favorable option is to prevent the …
Published in Journal of Petroleum Engineering & Technology · Vol. 5, Issue 1, 2015 · pp. 9–24 Read article
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Molasses to Ethanol Conversion Processes Overview: Process Simulation of the Beer-Ethanol Distillation
Abstract: The main target of this research is to give an overview of ethanol production and also to investigate the distillation process in a comparative way between the simulation and the lab tests. Different samples at different stages have been measured from the fermentation section to evaluate the ethanol production rate and concentration in each one of the fermenter as well as the PH measurements have been considered over six periods …
Published in Journal of Petroleum Engineering & Technology · Vol. 11, Issue 1, 2021 · pp. 1–16 Read article
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Review on Chemical Separation of Crude Oil and Analysis of Its Components
Abstract: Crude oil is chemically composed of a complex mixture of hydrocarbons of different gaseous, liquid and solid states, the total of which may reach more than 17,000 organic compounds. At standard conditions of pressure and temperature the light hydrocarbons with carbon numbers 1 to 4 (methane, ethane, propane, butane) are present in gaseous form; Whereas pentane and the heavier hydrocarbons are found in liquid form, and in the heavy fractions …
Published in Journal of Petroleum Engineering & Technology · Vol. 11, Issue 2, 2021 · pp. 35–49 Read article
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A Comparative Analysis of Physio-Chemical Properties of Local and Imported LPG On the Ghanaian Market
Abstract: Lignified Petroleum Gas (LPG) is gaining much usage as a fuel globally including Ghana.According to the Ghana 2021 Population and Housing Census, LPG as a main source of cooking fuel increased from 18.2% in 2010 to 36.9 % in 2021. LPG in circulation is produced from three main sources. These are from Tema Oil Refinery (TOR), Ghana National Gas Company (GNGC) and from Imports (IM). However, there are been some …
Published in Journal of Petroleum Engineering & Technology · Vol. 12, Issue 3, 2022 · pp. 38–42 Read article
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Phytochemical Quantification of Characteristics of Plant Extracts in Acidic Medium on Metal Inhibition
Abstract: Carbon steel coupon or specimen was analysed using X-ray Fluorescence Spectroscopy in determining the coupon’s composition and weighed before its total immersion into the acidic environment and acidic environment with different inhibitors (extract) respectively of different of concentration for a monitoring period of five day (120 hours). Corrosion inhibitive effect of moringa oleifera leaf (MOL), carrica papaya leaf (CPL) and coconut coir dust (CCD) extract respectively in mitigating the corrosion …
Published in Journal of Petroleum Engineering & Technology · Vol. 13, Issue 1, 2023 · pp. 32–43 Read article
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Design of a Process Plant for Dimethyl Ether Synthesis from Syngas Using Direct Method
Abstract: The search for alternative renewable and less polluting energy sources has gained prominence thus, there is an increasing interest in the use of Dimethyl Ether (DME) as a clean alternative fuel and raw material in the chemical industry. The simulation of a plant for the production of Dimethyl Ether from Syngas using direct synthesis method has been carried out in this work. The simulation was done using ASPEN HYSYS software. …
Published in Journal of Petroleum Engineering & Technology · Vol. 13, Issue 1, 2023 · pp. 44–59 Read article
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PERFORMANCE EVALUATION OF SMEs IN JABALPUR USING INTEGRATED PCA DEA MODEL
Abstract: An integrated principal component analysis and data envelopment analysis frame work has been adopted to assess and ranking of SMEs situated in Jabalpur. the results of the frame work shows the performance of SMEs : weak and strong points of each SME with regard to machinery and equipment. Moreover, the composite rank of the SMEs is calculated to assess the performance. Furthermore, it identifies which indicators have major impacts on …
Published in Journal of Production Research & Management · Vol. 8, Issue 2, 2018 · pp. 30–37 Read article
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Parallel Conwip for a High-mix Multi-stage Production System with the entrance of rework
Abstract: In a complex production environment, more than one type of pull systems is often used to regulate the processesof different products. In literature, performance studies appertaining to multiple pull systems co-existed in aproduction environment are rare. The present paper evaluates the performances of parallel CONWIP (PC)systems in a high-mix production system with the entrance of rework. The production comprises three stages ofshared-machine facilities. Reject parts produced by the first stage …
Published in Journal of Production Research & Management · Vol. 1, Issue 1-2-3, 2011 · pp. 21–44 Read article
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Emerging Trends in Applications of Semiconductor Alloys in Wireless Communications
Abstract: AbstractArsenide semiconductor alloys provide a natural means of tuning the magnitude of the forbidden gap and other material parameters so as to optimise and widen the application of semiconductor devices. With the advent of small-structure systems, for instance quantum wells and superlattices, the special effects of alloy composition, size, device geometry, doping and controlled lattice strain can be collective to accomplish maximum tunability. In this article, the concepts and ideas …
Published in Journal of Semiconductor Devices and Circuits · Vol. 3, Issue 1, 2016 · pp. 31–41 Read article
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Development and Synthesis of Graphene Based Gas Sensor
Abstract: AbstractGraphene has become a promising material for many different applications, such as nano electronic devices, physical, chemical and biochemical sensors, transparent conductive films, clean energy scavenging and storage devices and nano composite formulation. Recently gas sensing as a critical application intelligent system, is receiving increasing attention in both industry and academia. Sensing application using graphene sheets as transducer have experienced surge of activities in recent years, especially for gas sensing …
Published in Journal of Semiconductor Devices and Circuits · Vol. 7, Issue 2, 2020 · pp. 13–19 Read article
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Analysis of Specially Configured Large Ferrocement Water Tank
Abstract: Ferrocement construction technology is quite popular throughout the world for a long time. Ferrocement, a thin element composite of cement concrete mortar, wire mesh with skeleton steel is used as a building construction as well as a repair material. In this work, a special configuration is selected with different bar arrangement used for supporting skeleton steel in a large ferrocement water tank. Welded wire mesh is used in this water …
Published in Journal of Structural Engineering and Management · Vol. 6, Issue 3, 2019 · pp. 12–19 Read article
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Experimental Investigation on Ferrocement Slab Using Steel Fibres and Different Sands
Abstract: Ferrocement is defined as wire mesh reinforcement impregnated with mortar to produce elements of small thickness. An experimental study has been carried out to study the effect of different compositions of cement mortar using 10% fly ash and different percentage of 6–8% silica fumes with two types of sands such as Badarpur sand and river sand and show the effect of load versus deflection curve and flexural strength of ferrocement …
Published in Journal of Structural Engineering and Management · Vol. 4, Issue 2, 2017 · pp. 27–30 Read article
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Effect of Fiber Addition in Geopolymer Concrete: A Study on Comparison betweenNatural and Artificial Fibers
Abstract: Geopolymer concrete is an inorganic polymer concrete, containing no ordinary Portland cement (OPC). It is produced by reacting alumino-silicate source material with alkaline solution. Geopolymer concrete has highly desirable structural engineering properties, which can lead to significant environmental and economic benefits. Fibers in general and polypropylene (PP) fibers in particular have gained popularity in recent years for use in concrete, mainly owing to their low price and excellent characteristics. Alkalineliquids …
Published in Journal of Structural Engineering and Management · Vol. 2, Issue 1, 2015 · pp. 18–24 Read article
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Enhancing Fire Performance of Steel Reinforcement in RCC Structures: A Comprehensive Investigation
Abstract: The assessment, repair, and rehabilitation of fire-damaged structures have become crucial due to the rise in significant building fires.This particular field necessitates proficiency in various domains including concrete technology, material science and testing, structural engineering, and repair materials and processes. Researchers and developers are currently engaged in extensive efforts to tackle the challenges related to improving the fire resistance of steel reinforcement in reinforced concrete (RCC) structures. These endeavors involve …
Published in Journal of Structural Engineering and Management · Vol. 10, Issue 1, 2023 · pp. 33–40 Read article
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Synthesis and Characterization of In2S3 Nanoflake Thin Film for Photosensor Applications
Abstract: Indium sulphide (In2S3) thin films in the form of nanoflakes are synthesized by using chemical vapour deposition method on glass substrate with the intension to test its photosensor applications. These as deposited nanoflake thin films are characterized for physicochemical properties using X-ray diffraction (XRD) pattern, energy dispersive X-ray (EDAX) analysis,scanning electron microscopy (SEM) while optoelectronic properties were studied using optical and electrical characteristics obtained through UV-Vis transmission spectroscopy and I-V …
Published in Journal of Thin Films, Coating Science Technology & Application · Vol. 4, Issue 3, 2017 · pp. 21–26 Read article
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Effect of Process Parameters on TIG Weld-Brazing of Aluminum Alloy to Galvanized Steel
Abstract: AbstractAbility to join aluminum alloy to steel enables weight reduction of automobile bodies. Gas tungsten arc welding (GTAW) process was employed to weld-braze A8011-H14 aluminum alloy to galvanized steel in lap configuration. The influence of heat input on bead formation and joint strength was investigated. The microstructural characterization was carried out using an optical microscope and scanning electron microscope. The chemical composition was analyzed using energy dispersive spectroscopy technique. The …
Published in Journal of Thin Films, Coating Science Technology & Application · Vol. 5, Issue 3, 2018 · pp. 8–14 Read article