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1019 articles for “IEEE802.11”
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Ultrasonic Dispersion of Halloysite Nanotubes for Enhanced Mechanical, Thermal, and Morphological Performance of Epoxy Composites
Abstract: Halloysite nanotube (HNT)-reinforced epoxy nanocomposites were prepared by mixing HNT with bisphenol-A epoxy (LY 556) using ultrasonication, followed by compression molding. HNT contents of 0–5 wt.% were used. The composites were evaluated for tensile strength, flexural strength, Shore D hardness, Izod impact strength, and thermal stability using thermogravimetric analysis (TGA). The fractured tensile surfaces were also examined to understand the failure mechanism and interaction between HNT and the epoxy matrix. …
Published in Journal of Polymer & Composites · Vol. 14, Issue 5, 2026 · pp. 212–226 Read article
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Enhancement in Heat Transfer Rate in a Pipe in Pipe Heat Exchanger Using Helical Insert
Abstract: AbstractHeat transfer enhancement techniques are frequently used in heat exchanger system in order to increase the rate of heat transfer and improve the thermal performance of the system. This paper contains experimental study on enhancement in heat transfer rate using helical insert. The inner tube used was of copper with inner and outer diameter of 11.8 mm and 12.7 mm, respectively, and outer tube was galvanized iron, which was insulated …
Published in Journal of Thermal Engineering and Applications · Vol. 5, Issue 2, 2018 · pp. 5–12 Read article
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Effect of Heat Treatment on Mechanical Properties of Silver Nanoparticles Embedded in Phosphate Glasses
Abstract: AbstractSilver nanoparticles have been embedded in CaO-P2O5 and CaO-CaF2-P2O5 glasses using melt quenching technique and heat treatment process. The growth of silver nanoparticles in the glass matrix appeared to be time dependent. Mechanical properties such as Vickers hardness, fracture toughness and brittleness for the glass samples were evaluated using a Vickers Indentation technique. Variation in Vickers hardness, Fracture toughness, and brittleness was observed with an increase in the size of …
Published in Journal of Thermal Engineering and Applications · Vol. 5, Issue 3, 2018 · pp. 11–17 Read article
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Texture Study on 316L Weldments after Heat Treatments
Abstract: AbstractAustenitic stainless steels are regularly used as components in many parts and vessels work in the ocean. Also, 316L stainless steel (SS) is used in nuclear reactors, located near sea. 316L SS base metal (BM) and weld metal (WM) are aged at 450°C and at 350°C for 6000 hours and texture analysis using electron backscatter diffraction (EBSD) revealed that the texture is independent of delta-ferrite content. Inverse Pole Figures (IPF) …
Published in Journal of Thermal Engineering and Applications · Vol. 5, Issue 3, 2018 · pp. 1–10 Read article
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Environmental Impact Reduction by Using Smart Household
Abstract: In this paper, we study the environmental impact reduction due to the application of intelligent protocols to household heating. The study analyzes the reduction in greenhouse gases (GHG) emissions associated with lower energy consumption in heating detached and semi-detached houses and blocks of apartments. The new protocol bases its operation on a more efficient heating process, which reduces the operational time of the heating source, commonly heating equipment powered by …
Published in Journal of Thermal Engineering and Applications · Vol. 10, Issue 2, 2023 · pp. 10–23 Read article
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Internet of Things based Car Parking System using ESP- 32 and Blynk
Abstract: The security of the vehicles at the populated places has always been an area of concern. At many crowded places where a number of vehicles enter and exit every day, the security has to be taken into account so that chaos is reduced by using an efficient model. This paper shows the implementation of an Internet of Things based car parking system which consists of electronic components such as infrared …
Published in Current Trends in Signal Processing · Vol. 12, Issue 1, 2022 · pp. 21–28 Read article
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Development and Evaluation of Physical and Mechanical Properties on Talc Filled Sisal/Polyester Composites
Abstract: In recent years, research focusing on the use of natural fiber-reinforced composites has been increased and has opened up further industrial possibilities due to advantages of low density, low cost, biodegradability, abundance and renewability proffered by natural fibers. In this research, randomly oriented sisal fiber and talc filler were used to reinforce polyester matrix to produce composites of 3 mm thickness. The composites were fabricated by hand laying technique. Composite …
Published in Emerging Trends in Chemical Engineering · Vol. 5, Issue 2, 2018 · pp. 27–35 Read article
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Simulation of Nitric Acid Production
Abstract: Nitric acid has been known and esteemed for a long time. Most nitric acid is used in making ammonium nitrate. Its direct applications include photoengraving, metal pickling and passivation and the parting of gold and silver. Here the Oswald process is used to produce nitric acid. This process is simulated using HYSYS simulation software. The purpose of this simulation was to observe the thermodynamic properties of the process. We also …
Published in Emerging Trends in Chemical Engineering · Vol. 2, Issue 1, 2015 · pp. 43–48 Read article
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Continuous Column Study of Chromium (VI) Adsorption by Ion Exchange Resin
Abstract: The Indion GS300 anion exchange resin was trialed for its ability to remove chromium (VI) from synthetic wastewater by continuous column experiments. The ability of Indion GS300 to adsorb chromium (VI) in a fixed-bed column was analyzed. The effects of operating parameters such as flow rate and bed depth on the sorption characteristics of Indion GS300 were investigated. The total adsorbed quantities, equilibrium characteristics were related to the effluent volumes …
Published in Emerging Trends in Chemical Engineering · Vol. 1, Issue 2, 2014 · pp. 1–7 Read article
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Gluconic acid production from cane molasses using Aspergillus carneus
Abstract: Gluconic acid is a multifunctional organic acid, non-volatile, non-corrosive, non-toxic, readily biodegradable, with environmentally friendly properties. In this study, gluconic acid was produced from the treated molasses using Aspergillus carneus strain under the submerged fermentation. The parameters were studied using the four-factor, three-level Box-Behnken design using using Design Expert ® version 11. The acid produced was characterized using the Fourier transform infrared spectroscopy. The optimum values of the parameters were …
Published in Emerging Trends in Chemical Engineering · Vol. 6, Issue 3, 2019 · pp. 37–44 Read article
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Optimization of Sulphuric Acid Hydrolysis Process for Fermentable Sugars from Lignocellulosic Content of Wood Sawdust for Production of Cellulosic Ethanol
Abstract: The aim of this study was to investigate the optimization of acid hydrolysis process for fermentable sugars from the lignocellulosic content of wood sawdust for cellulosic ethanol production. In this study, four process parameters were investigated; acid concentration (3-7%), solid fraction (8-12ml/gm), temperature (100-120oC) and time (90-150minutes). The total reducing sugar content of hydrolyzed solutions was analyzed using Phenol-Sulfuric Acid method. The result of the statically analysis 2mm particle size …
Published in Emerging Trends in Chemical Engineering · Vol. 7, Issue 1, 2020 · pp. 10–18 Read article
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Isolation and Characterization of Dioscorea Dumentorum and ICACINIA Trichantha Starch for Possible Industrial Utilization
Abstract: The study was focused on finding alternative use for underutilized icacinia trichantha (gbegbe) and dioscorea dumentorum (esuru-igbo) for possible industrial utilization. Starches were isolated through aqueous method. The parameters determined are pH, ash and moisture contents, amylose content, gelatinization temperature, water absorption capacities, bulk density, tapped density and true density. The results showed that percentage yield was 70% for dioscorea dumentorum and 64.6% for icacinia trichantha. The physicochemical properties of …
Published in Emerging Trends in Chemical Engineering · Vol. 8, Issue 3, 2021 · pp. 1–7 Read article
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An Experimental Study of Spherical Agglomeration of Benzoic acid And Influence of Process Parameters
Abstract: Through the process of drowning-out crystallisation in three partly miscible solvent mixtures, sphere aggregates of benzoic crystal have been successfully created. The mixture of benzoic acid, isopropyl alcohol, and bridging liquid is supplied to an agitated crystallizer with water acting as the anti-solvent. When a substance crystallises, little crystals are formed, and the bridging liquid causes the crystals to group together. Different solvents are utilised because benzoic acid crystals wettably …
Published in Emerging Trends in Chemical Engineering · Vol. 9, Issue 2, 2022 · pp. 19–28 Read article
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Dependency of pure liquid pool boiling heat transfer coefficient to bubble contact angle on roughened Brass heater in new model
Abstract: Heat transfer coefficient of nucleate pool boiling Nucleation is a basic part of phase transformations, which plays an important role in understanding and describing any phase change processes. For a boiling process, nucleation appears in the initial stage, and directly affects bubble formation and boiling intensity. According to the heterophase fluctuations which induce phase transition, the phase change has two main types. Classically, phase change caused by the fluctuation with …
Published in Emerging Trends in Chemical Engineering · Vol. 9, Issue 2, 2022 · pp. 29–36 Read article
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The Positive Significance of Cymbopogon citratus (Lemon Grass) in Remediation of Crude Oil in the Environment of Soil
Abstract: The effectiveness of using lemon grass in the remediation of soil contaminated by crude oil was investigated. The material investigated is lemon grass and the potential in terms of performance was monitored with biokinetic parameters evaluation. Six samples of 1000g of soil each were polluted with 100 ml of raw crude oil. The samples were later amended with dosage of 20g, 40g, 60g, 80g and 100g of dried lemon grass …
Published in Emerging Trends in Chemical Engineering · Vol. 10, Issue 3, 2023 · pp. 13–26 Read article
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Mechanical Properties and Temperature distributionofHard Facingof SS-304 steelby using SAW
Abstract: Surface engineering is a multidiscipline activity aimed at tailoring the properties or surfaces of engineering materials to improve their function or service life. Mostly; as applied to metals, surface engineering includes processes; such as plating, diffusion treatment, physical and chemical vapor deposition, ion implantation, thermal spray coatings, selective hardening, hard facing, and a variety of less-used and proprietary processes. However; these processes will be described briefly and it will be …
Published in Journal of Automobile Engineering and Applications · Vol. 5, Issue 1, 2018 · pp. 18–29 Read article
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Numerical Investigation of Louvered Fins for Efficient Cooling of Automotive Engines
Abstract: Air cooled fins are designed to cool motorcycle engines or similar class of small vehicles bytransferring the heat to the air as it passes in-between the fins at high speed. The air circulation andfin geometry are interdependent, and improved air circulation leads to more efficient cooling. So, inthis study a parametric numerical investigation is conducted on a new conceptual design of air-cooled fins. Design parameters are set as: fin pitch, …
Published in Journal of Automobile Engineering and Applications · Vol. 8, Issue 1, 2021 · pp. 6–16 Read article
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Performance and Emission Analysis of Four Stroke Single Cylinder Diesel Engine Operated on Cotton Seed Oil Methyl Ester
Abstract: The declining fuel reserves and escalating prices of diesel fuel have put forth challenges for researcher to find significant substitute for diesel. Biodiesel prepared from vegetable oil is one of the options to diesel. In present work biodiesel prepared from cotton seed oil is tested in single cylinder diesel engine. The cotton seed oil production of India is about 1190 MT in the year 2012. This shows that India has …
Published in Journal of Automobile Engineering and Applications · Vol. 3, Issue 1, 2016 · pp. 5–14 Read article
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Design Analysis of Safety Airbags for Electric Vehicles
Abstract: Airbag is one of the most important and crucial safety feature for a passenger in a collision scenario travelling in a vehicle. This feature becomes more important when the vehicle is electricity driven. The airbag must be fully inflated in less than 100 milliseconds that requires a spontaneous reaction of Guanidine Nitrate. In this research experiments on a standard Airbag Deployment Apparatus were conducted, results on effect of different pressure …
Published in Journal of Automobile Engineering and Applications · Vol. 10, Issue 3, 2023 · pp. 1–8 Read article
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Design and Construction of Solar Still-Solar Water Heater Hybrid for Small Scale Application
Abstract: AbstractSolar still-solar water heater hybrid for small scale application has been designed and constructed and tested in this study. The construction began with designing and developing isolated units of single-slope solar still, solar water heater and water storage tank separately. These were then coupled together to form the hybrid system. To test its efficacy, the hybrid was subjected to perform distillation alongside a conventional type single-slope solar still of the …
Published in Journal of Alternate Energy Sources & Technologies · Vol. 8, Issue 2, 2017 · pp. 11–16 Read article