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186 articles for “fluid”
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Crystals (Thermotropic phases and Lyotropic phases) in Physical Properties
Abstract: In the current years there has been a cumulative growth to add the numerous nanomaterials to liquid crystals which is encouraged via frequent elements of resources advance. (i) accumulation of nanomaterials can conversion and thus melody the belongings of the liquid crystal (ii) inventive functionalities can be added to the liquid crystal (iii) the self-organization of the liquid crystalline formal can be abused to pattern systematic structures or to assignment …
Published in International journal of Thermodynamics and Chemical Kinetics · Vol. 5, Issue 2, 2019 · pp. 16–22 Read article
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Investigation of Mass Transfer Coefficient and Gas Hold Up and Bubble Size Distribution in Novel Design of Stirred Tank Reactor
Abstract: Stirred tanks are commonly used in chemical industries for reaction and separation. Large-scale reactors include many impellers to improve mixing performance. Agitator plays an important role during the gas-liquid contact in two phase flow. And it is very necessary to know for the understanding of any gas-liquid system. So, in this study my motto is to study which parameters affects in the mixing of gas inside the liquid. The parameters …
Published in International journal of Thermodynamics and Chemical Kinetics · Vol. 8, Issue 2, 2022 · pp. 5–12 Read article
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No Fine Concrete
Abstract: No-fine concrete has been in use in many countries over more than a century. Its higher porosity helps in percolating rain water directly to ground and thereby helps in recharging groundwater aquifer. In this study, 3 batches of no-fine concrete each with two different sizes of aggregate were prepared to find the mix that generated high compressive strength and study the effect of percentage of fine aggregate on the compressive …
Published in International Journal of Concrete Technology · Vol. 3, Issue 2, 2017 · pp. 18–30 Read article
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An overview on the rheology of recycled aggregate concrete with the influence of chemical admixtures
Abstract: : Concrete is one of the most widely used construction material because of its property to be moulded into any kind of structure and shape due to its fluidity at early stages. The fresh properties of concrete can be characterized by its flow behaviour. Rheology is the scientific description of flow properties. Super-plasticizers and air-entrainers are some of the most used chemical admixtures that affect the rheological parameters of fresh …
Published in International Journal of Concrete Technology · Vol. 5, Issue 1, 2019 · pp. 14–24 Read article
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Static and Dynamic Analysis on a Steel Module in a Floating Production Storage and Offloading (FPSO) Ship
Abstract: Abstract: An FPSO (Floating Production Storage and Offloading) is a floating production system that receives fluids (crude oil, hydrocarbons etc.) from a subsea reservoir and processes into oil and gas. Most FPSOs are ship-shaped, remodelled from existing cargo ships. FPSOs have been serving the offshore oil and gas industry for nearly 30 years. They have been proved to be safe and economical. A steel structure (module) in a FPSO will …
Published in International Journal of Structural Engineering and Analysis · Vol. 2, Issue 1, 2016 · pp. 7–14 Read article
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Effect of Circular Polyimide Micropillars on Surface-Driven Capillary Flow of Dyed Working Liquids inside the SU-8 based Glass Microfluidic Devices
Abstract: In this experimental work, total 8 individual SU-8 based glass microfluidic devices are fabricated using Mukhopadhyay’s own hands-on completely. Maskless lithography and indirect bonding technique are the methods to fabricate these devices. A CMOS camera catching 25 frames per second with a corresponding time-scale resolution of 0.04 second is used to record the surface-driven capillary flow in each device. Dyed water and dyed ethylene glycol are the selected and prepared …
Published in International Journal of Water Resources Engineering · Vol. 6, Issue 1, 2020 · pp. 1–9 Read article
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Self-powered Portable Unit for Drinking Water Production
Abstract: The paper describes a new system to supply drinking water for human beverage requirements in natural disasters like earthquakes, volcano eruptions, flooding, hurricanes or typhoons. The system use solar energy to supply power to the drinking water production unit that operates using evaporation to obtain drinking water from dirty or polluted waters. The unit operates at low temperature thanks to the created vacuum, which reduces the evaporation point of water …
Published in International Journal of Water Resources Engineering · Vol. 8, Issue 2, 2022 · pp. 27–38 Read article
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MODELING COGENERATION SYSTEM IN SHALLOW GEOTHERMAL INSTALLATIONS
Abstract: ABSTRACTThis paper presents a theoretical modeling of a cogeneration system using multiple heat exchangers and thermoelectric generator. The modeled system, designed for shallow geothermal energy, is a closed piping unit containing water as heat transfer fluid that circulates through a closed loop releasing thermal energy at the surface for heating and sanitary hot water. In addition, a Peltier cells array is attached to the piping system to generate electricity, thus …
Published in International Journal of Analog Integrated Circuits · Vol. 6, Issue 1, 2020 · pp. 41–52 Read article
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Laser-induced Phosphorescence Photobleaching Anemometer for Microfluidic Technology Instruments
Abstract: In this article, we have established a new, non-intrusive flow velocity calculation approach focused on photobleaching of a fluorescent dye for micro-fluidic systems. The time of existence of the fluorescent dye in the laser beam depends on the flow rate which roughly relates to the time of decay of the photobleaching of the dye in the laser beam. The time of residency is inversely proportional to the speed of flow. …
Published in International Journal of Analog Integrated Circuits · Vol. 6, Issue 2, 2020 · pp. 11–20 Read article
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MATLAB Simulation Processes on Pneumatic Force-Balance Transmitter
Abstract: A pneumatic force balance transmitter in which an input force proportional to the fluid flow rate being measured is applied to a force bar pivoted about a transverse axis to produce a torque. A rebalance torque is applied to the bar by means of a negative feedback loop, in which a pneumatic detector functions to sense any change in bar position, the detector output being amplified to produce a pneumatic …
Published in International Journal of Energetic Materials · Vol. 6, Issue 1, 2020 · pp. 25–32 Read article
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Magnetic field guided diluted magnetic semiconductor ZnxFe2-xO3 Nanostructures for applications in biomedical and biosensors
Abstract: The magnetic field guided nanoparticles are studied in the viewpoint of diluted magnetic semiconductor. Different structures and properties of Zn doped α-Fe 2 O 3 nanostructure is presented in theoretical point of view. In these regard, Weiss molecular filed theory, DFTB model, and DLVO theory are used to describe particle agglomeration, aggregation, electrostatic interactions, and magnetic interactions between Zn doped iron oxide nanocolloids. In addition, the nature of interactions between …
Published in International journal of Nanobiotechnology · Vol. 9, Issue 2, 2023 · pp. 18–30 Read article
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Production of Nitric Acid and its Stimulation
Abstract: Nitric acid has been known and regarded for quite a while. Most nitric acid is utilized as a part of making ammonium nitrate. Its immediate applications incorporate photoengraving, metal pickling and passivation and the separating substance of gold and silver. Here the Oswald procedure is utilized to create nitric acid. This procedure is mimicked utilizing HYSYS recreation programming. The reason for this reproduction was to watch the thermodynamic properties of …
Published in International Journal of Composite and Constituent Materials · Vol. 2, Issue 1, 2016 · pp. 7–9 Read article
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Numerical Simulations on Suitability of Blending Indian Coal during Normal Air Combustion
Abstract: The development of the country’s economy in the past decade has increased the energy consumption in India. The major source of energy in our country is combustion of fossil fuel i.e. coal. The research on pyrolysis of coal and other fossil fuels is related to unsteady state, one dimensional, variable property model of transport phenomena with inclusion of heat, mass and momentum transfers. In the present research work mainly aimed …
Published in International Journal of Polymer Science and Engineering · Vol. 4, Issue 1, 2018 · pp. 20–27 Read article
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Experimental Investigation of Visco-Elastic Behavior for Ecovio F Film C2203 Biopolymer Melts
Abstract: The visco-elastic behavior of biopolymers fluid are significantly interested in their internal structure, thus, it has been experimentally investigated for various industrial applications. This paper studies the characterization of (Ecovio F Film C2203) biopolymer because of their characteristics and importance in different fields of environment and health. Two form of rheometers instruments have been used at temperatures between (140 - 220) ˚C to describe the visco-elastic behavior of (Ecovio F …
Published in International Journal of Polymer Science and Engineering · Vol. 4, Issue 2, 2018 · pp. 24–33 Read article
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Reviewing the Evolution of Nanotechnology in the Oil and Gas Sector: Focus on the Utilization of Silica Nanoparticles
Abstract: Nanotechnology is advancing notably in the oil and gas sector, with its applications demonstrating substantial progress. The use of nanoparticles in various aspects of the industry has shown promise in addressing challenges and improving efficiency. Nanotechnology is finding applications across multiple facets of the oil and gas industry, encompassing areas such as the development of drilling and hydraulic fracturing fluids, cementing for oil wells, improved oil recovery techniques, corrosion prevention, …
Published in International Journal of Polymer Science and Engineering · Vol. 9, Issue 2, 2023 · pp. 30–36 Read article
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Identification of Axial Air-Foil Bearings and Radial Air-Foil Bearings
Abstract: Air-foil bearings (AFBs) are self-acting hydrodynamic bearings, a shaft is supported by a compliant, spring-loaded foil journal lining. Once the shaft is spinning fast enough, the working fluid (usually air) pushes the foil away from the shaft so that there is no contact. The shaft and foil are divided by air's high pressure which is produced by the rotation which pulls gas into the bearing via viscosity effects. AFBs provide …
Published in International Journal of Mechanics and Design · Vol. 3, Issue 1, 2017 · pp. 1–8 Read article
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Design and Fabrication of Trammel Balls
Abstract: Transportation of water plays a vital role in the survival of a growing population. If the scarcity of water is one major issue, transportation of water using tankers have their own share. Water in a partially filled container, when induced with external energy (motion), generates slosh and surge. Both slosh and surge effects work as a resistive factor during transportation. To eliminate the same, few holes are drilled at pre-desired …
Published in International Journal of Mechanics and Design · Vol. 5, Issue 2, 2019 · pp. 24–39 Read article
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Review on Thermoelectrical Generator and Software Analysis of Exhaust System
Abstract: In this century global warming is a very concerning issue. Vehicles are day-by-day increasing on roads, which emits harmful hot gases to environment. Due to exhaust gases and unwanted pollution TEG is a concept to utilize the heat energy of an engine for other works purposes. A major part of energy is being engaged in such issues. Here a study of conservation is being followed. TEG thermo-electric generator is a …
Published in International Journal of Mechanics and Design · Vol. 6, Issue 2, 2020 · pp. 38–45 Read article
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Gas turbines - A review
Abstract: Gas-turbine engines are any internal combustion engines that use gas as the working fluid to turn a turbine. Additionally, this phrase also refers to an entire internal combustion engine, which must have a turbine, a combustion chamber, and a compressor. Power generation with gas turbines dates back to 1939.One of the most often utilised power generation systems today is the gas turbine. The compressor, the combustion chamber The turbine, combustor …
Published in International Journal of Mechanics and Design · Vol. 8, Issue 1, 2022 · pp. 21–24 Read article
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Enhancing the Heat Transfer in the Thermal Chimney by Attaching the Fin under CFD Analysis
Abstract: The primary and secondary heaters in heat exchangers were numerically evaluated at nominal temperatures of 140°C for the primary heaters, 100°C for the secondary heaters, and 20°C for the ambient temperature in order to validate the design idea for enhancing the air temperature. The “convective heat transfer” of air in a thermal chimney built to laboratory size using two different types of electrical heaters and a rectangular cross-section of constant …
Published in International Journal of Mechanics and Design · Vol. 9, Issue 2, 2023 · pp. 9–26 Read article