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1934 articles for “4” (ranking capped at the first 2,000 matches — narrow the search to see the rest)
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Effect of Length and Tenor of the Introduction of Sansevieria cylindrica Fibers on the Mechanical Performance of Natural Fiber Composites
Abstract: The substitution of synthetic fillers, such as carbon black, with biobased ones in natural rubber (NR) is a trend of interest in view of increased sustainability and exploitation of agroforest waste in the materials sector. In this work, NR was filled with short fibers extracted from Sansevieria cylindrica (SC) leaves of various length (10, 20, 30, or 40 mm) and in different amounts (3, 6, or 10 g per 100 …
Published in Journal of Polymer & Composites · Vol. 11, Issue 2, 2023 · pp. 94–101 Read article
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Ameliorating Surface Roughness and Tensile Strength of ASA Fabricated Parts by Analyzing Significant FDM Printing Parameters Using Response Surface Methodology
Abstract: The constantly growing demand for acrylonitrile styrene acrylate (ASA) polymer in the automotive market to its use for fabricating different components such as dashboards, the interior, lights, and electrical components challenges manufacturers to continuously optimize its mechanical properties to meet consumer demand. Despite the widespread availability of three-dimensional (3D) printing techniques, research on the most efficient and cost-effective methods of producing ASA-printed components is still indispensable. Therefore, the purpose of …
Published in Journal of Polymer & Composites · Vol. 11, Issue 3, 2023 · pp. 1–12 Read article
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Potential Application of Pyrolysis Bio-Oil as a Substitute for Diesel and Petroleum Fuel
Abstract: In this review, the potential of biomass-based pyrolysis bio-oil for a replacement to diesel and petroleum fuel was reported. Relevant articles on the pyrolysis of agricultural wastes were consulted. The properties of the bio-oils, diesel, and petroleum were compared. It was found in the literature values that the bio-oil derived from the pyrolysis of empty fruit bunches (EFB) and wood showed a remarkable heating value of 32.60 and 32.40 MJ/kg, …
Published in Journal of Petroleum Engineering & Technology · Vol. 7, Issue 3, 2017 · pp. 19–29 Read article
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Revamp of Feed Preheat Network Using Aspen Hysys in a Kero Hydro-Desulphurization Unit
Abstract: The paper is based on the revamp of feed preheat network in a Kero hydro-desulphurization unit. This revamp is beneficial as it does not require additional equipment to raise the feed temperature. Desulphurization of crude is a catalytic process used in oil and gas refining industry to remove sulphur content from refined petroleum products. Previously, feed was charged from the crude distillation unit at 103°C. Due to envisaged changes, the …
Published in Journal of Petroleum Engineering & Technology · Vol. 7, Issue 2, 2017 · pp. 29–38 Read article
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Utilization of Egg Yolk as A Non-Toxic Emulsifier in Environmentally Friendly Invert Emulsion Drilling Mud
Abstract: Vegetable oil such as Jatropha has been shown to be a comparable alternative to diesel and mineral oils for environmentally friendly oil based drilling mud. However compatibility of the vegetable oils with the usual chemical additives is still a major challenge that calls for compatible and non-toxic substitutes. This study examined the suitability of hen egg yolk as a non-toxic emulsifier in invert emulsion drilling mud using vegetable oil continuous …
Published in Journal of Petroleum Engineering & Technology · Vol. 6, Issue 1, 2016 · pp. 41–49 Read article
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Comparative Study between Smart Controls and Conventional Bottom Hole Completions
Abstract: This research project made use of Schlumberger’s “ECLIPSE 100” reservoir simulator to predict the performance of a reservoir with an overlying gas cap and an underlying aquifer (i.e., a three- phase Water-Oil-Gas reservoir) under conventional BHC techniques. Additional work was done to ascertain the suitability of incorporating an Intelligent Well (IW) to deal with water production problem by placing Inflow Control Valves (ICV) at particular segments in the well to …
Published in Journal of Petroleum Engineering & Technology · Vol. 6, Issue 3, 2016 · pp. 77–89 Read article
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Effect of Variation in LPG Composition on Heating Value Using Aspen HYSYS
Abstract: Liquefied petroleum gas (LPG) is becoming an increasingly important part of the world’s energy sources. The determination of the heating value of LPG is of great economic importance in domestic and industrial purposes. This paper discusses the effects of impurities (e.g., moisture, H2S) and the presence of other hydrocarbons (e.g., ethane, pentane, propene, and butene) on the heating value of LPG fuel with different propane to butane. Different LPG composition …
Published in Journal of Petroleum Engineering & Technology · Vol. 5, Issue 1, 2015 · pp. 51–57 Read article
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A New Description of Multi-phase Flow Behavior at Boundary Layers of Low-permeability Porous Media
Abstract: At present, the recovery factor of low permeability oilfield in China is only about 20%, which is enormously lower than the recovery factor index of 60% by using water-chemical flooding in medium and high permeability layer. There are a lot of causes that resulted in low recovery factor, among them that the complex pore structure, tiny throat, large pore throat ratio and non-Darcy flow in low-permeability oil layer are the …
Published in Journal of Petroleum Engineering & Technology · Vol. 3, Issue 1, 2013 · pp. 1–7 Read article
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Anti-static Additive and Particulate Formation in Jet Fuel at Low Temperature
Abstract: Over-dosed anti-static additive Stadis 450 can form particulates in jet fuel when temperature goes down to around -38oC. The particulate formation was observed during freezing point test. The jet fuel produced by Toruk refinery of Arabian Gulf Oil Company of Libya had freezing point of about -55OC which is lower than required-47OC for jet fuel A-1. Key words: Libya, Tobruk refinery, Sarir refinery, Jet Fuel, Anti-Static Additive, Particulate, Low Temperature
Published in Journal of Petroleum Engineering & Technology · Vol. 9, Issue 2, 2019 · pp. 1–4 Read article
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Production and Characterization of Essential oil using the Solvent Extraction Method from Brassica nigra seeds
Abstract: The purpose of this study is the Production, Optimization and Characterization of oil from Brassica nigra seeds using the Solvent Extraction Method. The result shows no difference from the seed oil extract from the mustard plants which grows in other parts of the world. This is to create awareness to utilize the Brassica nigra seed locally grown, as a potential source of edible oil for health benefit, such as additives …
Published in Journal of Petroleum Engineering & Technology · Vol. 10, Issue 1, 2020 · pp. 5–20 Read article
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Enhanced Oil Recovery through the Application of Nanoparticles with Irvingia Gabonensis in Flooding Process in the Reservoir
Abstract: This experimental investigation is aimed at establishing the ability of nanofluids formula from a mixture of nanoparticles and oil extracted from Irvingia gabonensis (bush mango) in enhancing recovery from oil reservoir. The laboratory study involved the use of core flooding unit, crude oil, brine, nano-particles and Irvingia gabonensis. In this study, nanofluids formulated from nanoparticles of aluminum oxide (Al 2 O 3 ) and zinc oxide (ZnO) respectively were used …
Published in Journal of Petroleum Engineering & Technology · Vol. 12, Issue 2, 2022 · pp. 1–9 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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Crude Oil Remediation in Soil Environment using Orange (Citrus sinensis) Peel
Abstract: The research on effective performance of citrus sinensis (orange) peel was monitored in crude oil remediation in loamy soil environment. Different bioreactors with different bio-stimulant dosage of 20g, 40g, 60g, 80g, 100g of room dry and sundry samples were tested to examine the performance on microbial activities on crude oil mitigation in each bioreactor. The nutrient of the bio-stimulants was determined as pH value of 6.63, total nitrogen content of …
Published in Journal of Petroleum Engineering & Technology · Vol. 13, Issue 2, 2023 · pp. 24–34 Read article
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Design of Ducts: An Industrial Perspective
Abstract: Central Air Conditioners working is a complex and cumbersome topic which takes a lot of time and effort. It’s a difficult task to explain the entire parts, its working and maintenance. Here an effort is made to explain about the designing of Ducts used in a central A/C. A Commercial building is taken for reference and each floor’s Duct designing is explained. The ground floor is designed with supply air …
Published in Journal of Production Research & Management · Vol. 10, Issue 1, 2020 · pp. 18–24 Read article
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Reduction of Short Channel Effects with the Variation of Poly Doping and Source/Drain Doping
Abstract: In this paper, the concentration of poly-silicon doping and source/drain doping has been varied to obtain the approximation the OFF state leakage current for N channel MOSFET. A lightly doped NMOS has been designed using 45 nm technology in ATHENA and simulated in ATLAS of SILVACO TCAD tool. After simulation results, it has been observed that as the poly-silicon doping and source drain doping concentrations are decreased, there is a …
Published in Journal of Semiconductor Devices and Circuits · Vol. 4, Issue 3, 2017 · pp. 35–42 Read article
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An Efficient RNS Based Sparse Kogge Stone Parallel Pre-fix Adder with Filter
Abstract: AbstractLow power very large-scale integration (VLSI) circuits are important for designing of high performance and portable devices. Along with that the high speed, small area and low cost are also the main considerations of VLSI circuits. The importance of low power is increasing day by day because of changing trend, packaging and cooling cost, portable system and reliability. This paper presents the design of Digital FIR filter using reverse converter …
Published in Journal of Semiconductor Devices and Circuits · Vol. 5, Issue 1, 2018 · pp. 43–51 Read article
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Study and Implementation of I2C Bus Controller using Verilog HDL
Abstract: AbstractInter Integrated Circuit is a Philips semiconductor. This bus is a two-wire, low to medium speed, correspondence transport created by Philips Semi-conductors. It gives capable chip to chip correspondence. I2C is found in for the most part specialized devices. Two bus lines are required SDA and SCL (serial information and serial clock line) both should be pulled up with a resistor to +Vdd. Serial, 8-bit arranged, bidirectional information exchanges can …
Published in Journal of Semiconductor Devices and Circuits · Vol. 4, Issue 1, 2017 · pp. 29–33 Read article
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Suitability of Various Low Power Strategies for SRAM Design: A Survey
Abstract: In very high performance system on chip, static power dissipation plays a dominant role compared to dynamic component and it increases with technology scaling. Scaling of bulk MOSFET faces more and more challenges at 45 nm technology or below by producing short channel effect (SCE) which leads to increase in leakage current. An obstacle with bulk MOSFET at 45 nm or below gate length includes SCE, subthreshold leakage and gate …
Published in Journal of Semiconductor Devices and Circuits · Vol. 2, Issue 1, 2015 · pp. 6–13 Read article
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Effect of Viscoelastic Dampers on Progressive Collapse Resistance of RC Building
Abstract: Natural as well as man-made hazards may cause the failure of the primary load bearing members of buildings. The spread of an initial local failure from element to element, eventually result into the collapse of an entire structure or a large part of it, which is known as Progressive Collapse. Progressive collapse initiates when one or more primary load bearing elements get fails causing failure of the entire structure. It …
Published in Journal of Structural Engineering and Management · Vol. 4, Issue 1, 2017 · pp. 27–34 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