All articles
112 articles
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THERMODYNAMICS OF HEAVY METALS (Hg2+, Cd2+, Fe2+AND Ni2+) ADSORPTION USING BOILER FLY ASH
Abstract: The effect of temperature on the adsorption of heavy metals, Hg2+, Cd2+, Fe2+ and Ni2+ using unactivated boiler fly ash (an agricultural waste) was investigated. The results showed that Hg2+ and Cd2+ ions were mostly affected by increase in temperature because their sorption rate decreased at high temperature. At the temperature of 273 K and 383 K, the amount of Hg2+ adsorbed (mg/g) by the unactivated boiler fly ash was …
Published in International journal of Thermodynamics and Chemical Kinetics · Vol. 6, Issue 2, 2020 · pp. 25–34 Read article
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Development of Biokinetic Model for Crude Oil Remediation using Neem-Water-Alcohol Root Extracts
Abstract: Model was developed to examine the degradation of crude oil in different soil environment using Neem roots extract subjected in fermentation for a period of one week. The Neem roots extract of 500g and 600g was used in carrying out the research work and both was extracted from fermented Neem roots in alcohol medium. The reaction mechanism was tested using first order rate constant with Neem treatment in both solvent …
Published in International journal of Thermodynamics and Chemical Kinetics · Vol. 6, Issue 2, 2020 · pp. 1–15 Read article
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Prediction of Step Input Response on Pneumatic Proportional Derivative Controller. The Concept of Transfer Functions
Abstract: Computer programme language of MATLAB software was used to monitor, predict and simulated the characteristics of step input response on pneumatic proportional derivative controller with the concept of transfer functions. The prediction of step input response on pneumatic proportional derivative controller was examined using the concept of transfer function. A model equation was also developed to give account of the response of on pneumatic proportional derivative controller. The equation was …
Published in International journal of Thermodynamics and Chemical Kinetics · Vol. 6, Issue 1, 2020 · pp. 35–44 Read article
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Effect of Environmental Parameters on Corrosion of Metal Steel in Stagnant Fresh Water Using Finite Element Approach
Abstract: Corrosion as the determination or destruction of metal due to the reaction with it environment has posed a large amount of threat to industrial plants, human, increased cost of maintenance of plant and like cause injury to human due to accident in work place. This work studies the effect of environmental parameters of corrosion of three types of steel, Cast iron, mild steel and stainless steel in stagnant water media …
Published in International journal of Thermodynamics and Chemical Kinetics · Vol. 6, Issue 1, 2020 · pp. 1–23 Read article
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Life Origin on Earth, Knowledge Development
Abstract: An enigmatic and important feature of life origin on Earth is embodied with a number of different hypotheses and knowledge based on experimental data and biomedical principles. These hypotheses and understanding generally contain some small-scale experimental simulation, chemical structure comparisons and a series of guesswork from existing biological knowledge and principles. So far, there is no widely agreement of single hypothesis without significant arguments and conflicts between researchers of different …
Published in International journal of Thermodynamics and Chemical Kinetics · Vol. 6, Issue 1, 2020 · pp. 24–28 Read article
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Thermodynamic Explanation on Surface-Driven Capillary Flow of Working Liquids in the Microfluidic Devices Fabricated by Polymers
Abstract: In this experimental work, total 100 individual microfluidic devices are fabricated by polymers using author’s own hands-on completely. A set of straight microchannels, gradual expansion microchannels, sudden expansion microchannels and sudden contraction microchannels are fabricated by SU-8 using the maskless lithography and indirect bonding technique. Another set of straight microchannels, gradual expansion microchannels, sudden expansion microchannels and sudden contraction microchannels are fabricated by PMMA using the maskless lithography, hot embossing …
Published in International journal of Thermodynamics and Chemical Kinetics · Vol. 6, Issue 1, 2020 · pp. 45–70 Read article
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Surface-Driven Capillary Flow of Dyed Ethanol in a Single SU-8 based Microchannel Bend Fabricated on Glass
Abstract: In this experimental work, a single SU-8 based microchannel bend is fabricated on glass by maskless lithography and indirect bonding technique. Dyed ethanol is prepared as working liquid by mixing commercially available food dye with ethanol. Surface-driven capillary flow of dyed ethanol in streamline motion is recorded by a CMOS camera catching 25 frames per second with a corresponding time-scale resolution of 0.04 second. Effect of centrifugal force on surface-driven …
Published in International journal of Thermodynamics and Chemical Kinetics · Vol. 6, Issue 1, 2020 · pp. 29–34 Read article
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Kinetics of oxidation of mixture of oxalic acid and glutaric acid by chromic acid in presence of sodium chloride and potassium chloride
Abstract: Effect of Sodium Chloride and Potassium chloride on the co-oxidation of oxalic Acid and glutaric Acid by Chromic Acid has been studied. The products are carbonyl di carboxylic Acid and Carbon dioxide. The rate of oxidation decreases with the increase in the concentration of Sodium Chloride and Potassium Chloride. It is found that Potassium Chloride is the most effective in retarding the reaction rate comparison to Sodium Chloride. The order …
Published in International journal of Thermodynamics and Chemical Kinetics · Vol. 5, Issue 2, 2019 · pp. 4–8 Read article
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Review on Preparation and Applications of Formazan Compounds
Abstract: The objective of the survey designated in this study is to predict the redox-active feature of formazan derivatives. To realize this purpose, preparation processes and investigation approaches of the formazan derivatives are developed. The redox properties of formazan derivatives were identified via electrochemical approaches and the first samples of isolated and well-investigated formazan products are designated in this review. Formazan derivatives (as a dyes) are synthetic chromogenic yields of the …
Published in International journal of Thermodynamics and Chemical Kinetics · Vol. 5, Issue 2, 2019 · pp. 23–33 Read article
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Preparation of Beta Lactam Compounds and Study of Thermodynamically Behavior
Abstract: Several Lactam derivatives have been prepared by condensation reaction of folic acid with (4-chloroacetophenone and 4-hydroxyacetophenone) in ethanol. Then the resultant compounds (1,2) react with another Schiff bases by reacting of 4- bromobenzaldehyde with an amino acid (Phenylalanine, Tryptophan, Tyrosine and Histidine) to give bis-β-lactam rings. The structures of target compounds were characterized by many spectroscopic methods including NMR, FTIR technique and their melting points. The β- lactam derivatives were …
Published in International journal of Thermodynamics and Chemical Kinetics · Vol. 5, Issue 2, 2019 · pp. 9–15 Read article
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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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Life Origin on Earth, Biochemical Approaches
Abstract: An enigmatic fate of life origin on Earth is embodied with a number of different hypotheses. In addition, a great number of physics, chemical, biological and ecological factors can affect the courses and dimensions of evolutionary evidence discovery and earth environments for life formation.KEYWORDS Human evolution, life-origin, RNA-world, systems biology, genetic information system, environmental ecology
Published in International journal of Thermodynamics and Chemical Kinetics · Vol. 5, Issue 2, 2019 · pp. 1–3 Read article
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Atomic Layer Etching and its Characteristic
Abstract: Atomic layer etching (ALE) is most advanced etching technique for removing thin layer of material at the atomic level using sequential reaction steps that are self limiting. ALE is thousand times faster as compared of approaches like Reactive ion etching (RIE) & others. ALE with thermal technique, the researchers fabricated 3-D transistors that are as narrow as 2.5 nanometers and more efficient than their commercial counterparts. Consider the etching approaches …
Published in International journal of Thermodynamics and Chemical Kinetics · Vol. 5, Issue 1, 2019 · pp. 45–56 Read article
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AN OVERVIEW OF OPERATION SYSTEM ORDER FOR DC- DC CONVERTER USING PULSE- WIDTH MODULATION
Abstract: To achieve the continuous power transmission, the behavior of dc-dc converter using pulse width modulation technique need to be analyzed in different operation modes. In this paper, review of operation system order for dc-dc converter using PWM that controls the power flow path between the source, load and the battery was done. The generator voltage, input frequency and loads demand with several operating states and control strategies are reviewed. The …
Published in International journal of Thermodynamics and Chemical Kinetics · Vol. 5, Issue 1, 2019 · pp. 38–44 Read article
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Novel method for determination of kinetic constants from dynamics in a batch reactor with constant heat input rate
Abstract: In this article a novel method of obtaining reaction kinetic constants is described. It consists of measuring both concentration and temperature dynamics in a batch reactor supplied with a constant heat input rate. A system of esterification reaction between acetic acid and methanol in the presence of a cationic resin catalyst is studied. This reversible reaction’s rate is modeled by molecular order and as pseudo homogeneous assumption. By just one …
Published in International journal of Thermodynamics and Chemical Kinetics · Vol. 5, Issue 1, 2019 · pp. 19–23 Read article
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Examination of conversion of Ethanol into Diethyl – Ether Product
Abstract: Investigation was conducted to examine the rate of diethyl-ether production from ethanol using the approach of vapour-phase dehydration. The following functional parameters were examined to determine the significance on the production of diethyl-ether from ethanol on the concept of vapour-phase dehydration. The functional parameters are space time, space velocity, heat generated per unit volume, reactor length, weight of catalyst and fractional conversion. The result obtained from the investigation demonstrates the …
Published in International journal of Thermodynamics and Chemical Kinetics · Vol. 5, Issue 1, 2019 · pp. 10–18 Read article
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Effect of Pressure on Insulation Failure and Pipe Leakage in Natural Gas Transmission Pipeline Using Simulation Software
Abstract: Effect on insulation failure and pipeline leakage in natural gas transmission line using simulation software known as EXTENDSIM9 SUIT was applied to monitor, predict and simulate the variation in pressure in a pipeline system. The computational fluid dynamics parameters for the flow of compressible gas in a pipeline includes density and pressure which changes along the transmission line due to frictional resistance, and may lead to fogging/ hydrate formation or …
Published in International journal of Thermodynamics and Chemical Kinetics · Vol. 5, Issue 1, 2019 · pp. 24–37 Read article
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Review on Corrosion and Rust Inhibition of Machines in Chemical Engineering Field
Abstract: The present review involved information about corrosion and rust of machines like causes of corrosion , mechanism of corrosion ,types of corrosion , treatments. Corrosion is a natural event which includes the deterioration of element components. According to the destruction of a metal or its properties due to a reaction with its environment, which causes potentially severe damage to building , application and surface .Inhibiting corrosion to Prevent Machine Failures …
Published in International journal of Thermodynamics and Chemical Kinetics · Vol. 5, Issue 1, 2019 · pp. 1–9 Read article
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Hypotheses for Life Origin on Earth, Comparison and Validation
Abstract: Life origin on Earth is an interesting topic all over world. RNA world, extraterritorial living-form landing, volcanic eruptions, cooperative biological origin hypothesis are major hypotheses so far. A great number of physics, chemical, biological and ecological factors are shared in this Editorial. Advantages and limitations of different aspects of life-origin hypotheses are overall highlighted. KEYWORDS Human evolution, life-origin, RNA-world, systems biology, genetic information system, environmental ecology,
Published in International journal of Thermodynamics and Chemical Kinetics · Vol. 4, Issue 2, 2018 · pp. 63–66 Read article
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On Line Process and Regulator Control (Detailed Version)
Abstract: Modern manufacturing practices and advancement in process control technology are accompanied and faces two problem, namely, (i) to provide quality goods and services and (ii) to contend with limited resources. Statistical modelling methods can provide broad and effective means to address this problem. Process control practitioners, in the Statistical Process Control (SPC) and the Automatic Process Control (APC) areas have endeavoured to integrate SPC and APC for more than half …
Published in International journal of Thermodynamics and Chemical Kinetics · Vol. 4, Issue 2, 2018 · pp. 37–62 Read article