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370 articles for “absorbance”
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THEORETICAL ANALYSIS OF ADVANCED PARABOLIC RECEIVER FOR DIRECT STEAM GENERATION
Abstract: Solar thermal power generation using water as a Heat Transfer Fluid (HTF) has gained interest recently, due to its ability to generate steam directly from the receiver tube. In this paper, a new theoretical model of receiver called Concentric Parabolic Trough Receiver (C-PTR) for direct steam generation is presented. The proposed model consists of Phase change material (PCM) sandwiched between two concentric cylindrical tubes. Binary Solar Salt commercially known as …
Published in Journal of Refrigeration, Air conditioning, Heating and ventilation · Vol. 2, Issue 1, 2015 Read article
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Exergetic Analysis of Single Effect LiBr-Water Absorption Cooling System
Abstract: Abstract This paper presents the exergy analysis of single effect LiBr-Water absorption cooling system. The work is committed to the study, the evaluation and distribution of the destroyed exergy for each component constituting this kind of system. The thermodynamic models, derived using the first and second laws of thermodynamics, are employed in a computer program using the engineering equation solver (EES) software to perform the calculations. Influence of various operating …
Published in Journal of Refrigeration, Air conditioning, Heating and ventilation · Vol. 3, Issue 2, 2016 · pp. 41–48 Read article
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Analysis and Optimization of Disc brake of Motor cycle
Abstract: Automobile braking system is one of the most important mechanical devices. The disc brake system is a device for slowing or stopping the rotation of a wheel. To stop the vehicle, friction material in the form of brake pads is forced mechanically, hydraulically, pneumatically or electromagnetically against both sides of the disc. Friction causes the disc brake and attached wheel to slow or stop. Generally, the cost of disc rotor …
Published in Trends in Machine design · Vol. 3, Issue 1, 2016 · pp. 1–23 Read article
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Treatment of Dairy Cooling Unit Washing Wastewater using Modified Sequencing Batch Reactor (MSBR) with various Media
Abstract: A bench scale modified sequencing batch reactor (MSBR) was employed for treatment of diary cooling unit wastewater. The reactor was constructed in cylindrical shape with outlet nozzle at the bottom using borosilicate glass with capacity of 10 L. The reactor was supplied with oxygen by bubble air diffuser at the aeration rate of 4 L/h. The aeration rate was optimized by doing series of trials for MSBR operation. The reactor …
Published in Journal of Water Pollution & Purification Research · Vol. 1, Issue 1, 2014 · pp. 34–38 Read article
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Treatment of Textile Wastewater using Bentonite Clay as a Natural Coagulant
Abstract: The main objective of the present study was treatment of dye waste by coagulation with clay to achieve maximum removal efficiency of color and sludge.The present study was aimed to investigate the effects of bentonite clay as coagulant in treatment of textile wastewater. The coagulant prepared was employed for the removal of sludge at the different doses. The maximum coagulant for removal of colour and sludge was found at an …
Published in Journal of Water Pollution & Purification Research · Vol. 1, Issue 2, 2014 · pp. 24–27 Read article
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Use of Rice Straw as an Adsorbant to Eliminate Waste Color of Textile Industry Wastewater
Abstract: Textile wastewater contains different colors which are harmful to the environment. The removal of dyes from effluent using adsorption process provides an attractive alternative treatment, especially if the adsorbant is inexpensive and readily available. In this present research paper natural adsorbant rice straw is used for removal of color from waste effluent of textile industry. The adsorbant prepared was employed for the removal of color at the different doses. The …
Published in Journal of Water Pollution & Purification Research · Vol. 1, Issue 3, 2014 · pp. 18–21 Read article
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Coagulation Performance of Activated Neem Leaf Powder in Treating Low Strength Dye Waste Water
Abstract: The use of chemical coagulants is not recommended because it affects health and economic considerations. Therefore, plant-based coagulants are preferred for treating waste water. It is very cheap and easily available; also it will not have any health hazards. A new coagulant is obtained through neem leaf powder, and has been found effective in the removal of dangerous pollutants from dyeing waste water. From the experimental investigations, it has been …
Published in Journal of Water Pollution & Purification Research · Vol. 2, Issue 1, 2015 · pp. 26–31 Read article
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Biosorption of Cd2+, Cu2+ and Pb2+ Using Immobilized Moringa oleifera Leaves
Abstract: Abstract In demonstration of the effectiveness of immobilized Moringa oleifera (M. oleifera) leaves (IMOL) for the removal of metal ions from waste water, the leaves of M. Oleifera were immobilized by entrapping them within a polymeric matrix of calcium alginate. The concentration of residual metal ions after sorption was determined using atomic absorption spectrophotometer (AAS). The result of sorption capacity of Cd2+, Cu2+ and Pb2+ were found to be 99.59±0.061, …
Published in Journal of Water Pollution & Purification Research · Vol. 3, Issue 3, 2016 · pp. 23–28 Read article
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Modelling Structural Damage in FPSO Collisions
Abstract: While the oil operators become more interested in developing oil and gas in deeper and more remote offshore locations, there should be further research and development that focuses on collision assessment of floating structures, especially ship-shaped floating production, storage and offloading units (FPSOs). The focus of this paper is on general methodology and design accident scenarios for FPSOs using more sophisticated tools such as the nonlinear FEM used so that …
Published in Journal of Offshore Structure and Technology · Vol. 2, Issue 3, 2015 · pp. 23–52 Read article
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A Review on Test Facility for Measuring Pressure Drop in Hydroformed Cryopanel
Abstract: Cryopump is a vacuum pump that pumps the gases and vapors by condensing them on a cold surface, by adsorption on porous surfaces or by trapping mechanism. Helium gas which is very light can only be pumped by Cryoadsorption cryopump. Cryoadsorption cryopump cannot be used when working for continuous operation as it pumps the effluent till the saturation state is achieved. Then the absorbed gases are required to be removed …
Published in Recent Trends in Fluid Mechanics · Vol. 2, Issue 1, 2015 · pp. 21–25 Read article
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Sonochemical Synthesis and Photo-Catalytic Study of Cd Doped Znse Nanoparticles
Abstract: Cd doped ZnSe nanoparticles have been successfully synthesized with sonochemical process by reacting high purity acetates and sodium selenosulphate at 343 K. The size of nanoparticles was calculated by using powder XRD. It shows the crystalline size ranging between 35.3 nm to 45.44 nm. XRD further shows that ZnSe nanocrystallites are polycrystalline in nature and belong to the hexagonal phase. SEM shows that the particles are spherical in shape. Effect …
Published in Nano Trends – A Journal of Nano Technology & Its Applications · Vol. 17, Issue 1, 2015 · pp. 32–41 Read article
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Mechanism of Microwave: Material Interaction and Its Effect on Material Properties
Abstract: Application of microwave energy for materials processing is emerging as a novel and innovative technology with many advantages over conventional processing, such as reduction in processing time resulting into energy and cost savings, providing finer microstructures, leading to improved mechanical properties and eco-friendliness etc. Microwaves are electromagnetic waves with wavelengths ranging from 1 m to 1 mm, which correspond to frequencies between 0.3 and 300 GHz. Microwave heating is a …
Published in Nano Trends – A Journal of Nano Technology & Its Applications · Vol. 18, Issue 2, 2016 · pp. 11–14 Read article
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Experimental Investigation of Mechaniccal and Thermal properties of Pmyra bract fiber composite
Abstract: Ecological concerns have resulted in renewed interest in natural materials in terms of their industrial applications and fundamental research. Recyclability and environmental safety are becoming increasingly important to the introduction of natural materials and products. Petroleum based products such as resins in thermo set plastics are toxic and non- biodegradable. The resins and fibres used in green composites are biodegradable when they are dumped, decomposed by the action of microorganisms. …
Published in Trends in Mechanical Engineering & Technology · Vol. 4, Issue 3, 2014 Read article
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Evaluation of Test Performed on Suspension by the Use of ZnO as Blending Agent for Measurement of Mechanical Characteristics
Abstract: This paper entails about the analogy performed on the rear unit-spring loaded hydraulic damper. The focus is laid upon the measurement of mechanical properties when the suspension unit is preloaded. Dynamic load test rig is employed for the accurate and precise measurement of values generated during the test. The suspension unit is preloaded with some initial velocity and the corresponding values are being generated. ZnO as a blending agent along …
Published in Trends in Mechanical Engineering & Technology · Vol. 5, Issue 3, 2015 · pp. 33–37 Read article
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Evaluation of Epoxy Granite as an Alternate Material for Lathe Bed
Abstract: Machine Tool is a machine that gives the desired shape to the work with required accuracy of removing metal from the work in the form of chip. Beds, columns, bases, head stock are known as ‘structure’ in a machine tool. The Lathe Bed should be sufficiently rigid to prevent deflection under tremendous cutting pressure transmitted through the tool-post and carriage to the Lathe Bed. It must be massive with sufficient …
Published in Trends in Mechanical Engineering & Technology · Vol. 6, Issue 2, 2016 · pp. 59–68 Read article
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Crash and Vibrational Analysis of Car Body
Abstract: This paper describes about the relevance of the crash analysis required for the safety of the automobile during the time of the crash. During the crash of an automobile, some parts in the front of an automobile body will have plastic deformation and absorb a lot of energy. Hence, it is necessary to check the car structure for its crash ability so that safety is achieved together with fuel economy. …
Published in Trends in Mechanical Engineering & Technology · Vol. 7, Issue 2, 2017 · pp. 26–35 Read article
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Study of Coke-oven Gas Desulphurization and Methods to Improve Sulphur Quality
Abstract: The coke-oven gas has high calorific value and can be used for the burning process. The coke-oven gas coming out from the coke-oven department contains impurities like Sulphur, Ammonia, Tar, and Naphthalene. Sulphur is the major impurity; it is very harmful and poisonous to the environment. So the removal of sulphur plays an important role in the purification of coke-oven gas. The sulphur extraction can be done by absorption using …
Published in Journal of Modern Chemistry & Chemical Technology · Vol. 2, Issue 2, 2011 · pp. 16–23 Read article
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Preliminary Study on the Production of Activated Carbon from Moringa Oleifera Seed Shells by Thermal Activation Method
Abstract: Activated carbon was prepared from Moringa oleifera seed shells by thermal activation method. The carbonization and activation temperatures were 500, 600 and 700°C respectively, at 13 min for each process after pre-carbonization for 25 min. The pH of the activated carbon produced were 9.55 at 500°C, 9.78 at 600°C and 9.97 at 700°C while the yield decreased with increase in temperature as follows: 30.40% at 500°C, 29.35% at 600°C and …
Published in Journal of Modern Chemistry & Chemical Technology · Vol. 6, Issue 1, 2015 · pp. 13–16 Read article
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BVM: A Promising Agent for Future HIV-1 Treatment
Abstract: Normal 0 false false false EN-US X-NONE X-NONE MicrosoftInternetExplorer4 /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-qformat:yes; mso-style-parent:""; mso-padding-alt:0in 5.4pt 0in 5.4pt; mso-para-margin:0in; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:11.0pt; font-family:"Calibri","sans-serif"; mso-ascii-font-family:Calibri; mso-ascii-theme-font:minor-latin; mso-fareast-font-family:"Times New Roman"; mso-fareast-theme-font:minor-fareast; mso-hansi-font-family:Calibri; mso-hansi-theme-font:minor-latin; mso-bidi-font-family:"Times New Roman"; mso-bidi-theme-font:minor-bidi;} More than 20 individual and fixed-dose combinations of anti-HIV drugs are available for the treatment of human immunodeficiency virus (HIV) infection. However, owing to the development of …
Published in Research and Reviews: A Journal of Pharmaceutical Science · Vol. 2, Issue 1, 2011 · pp. 11–21 Read article
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Synthesis, Crosslinking and Evaluation of Graft Polymer for Biomedical Use
Abstract: The objective of this research was focused on grafting of acrylic acid (AA) with hydroxypropyl methylcellulose (HPMC) to obtain copolymers of hydrogels with improved properties for ease of administration and reducing the dose frequency, improved patient compliance and comfort of sustained release medication. Water-absorbing polymers for hydrogels, the swellable polymeric materials have been widely investigated as the carrier for drug delivery system. These are the advanced polymer systems that hold …
Published in Research and Reviews: A Journal of Pharmaceutical Science · Vol. 3, Issue 1, 2012 · pp. 37–45 Read article