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Design and Fabrication of Multipurpose Mobility Carriage for Crippled
Arun Kumar S ; Boney Philip Parampil; Febin P Sahib Nazeer; Febin Stephen Joseph
Mechanical Engineering
Year: 2018, Volume:5, Issue : 1
Pages: 1 - 9
The project mainly aims to design and fabricate a carriage for armless people for the easy transportation from place to place, also outdoors. The project focuses for the use of crippled people (Both armless as well as disabled). The cost efficiency of the design makes it affordable for the common man. The drive is provided by an electric motor. A rechargeable battery is used for the power supply. It uses track chain instead of traditional wheels, thereby enabling it to pass through different terrains as well as ability to climb stairs. The use of track chain also enables it to rotate 360º in standstill position. The controls can be operated either by using hands or by using legs, thereby enabling it to be used for people with different disabilities. The product in application will be economic and can be used in several cases where normal transportations are difficult.
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SCRAP-Shredding Collecting and Remoulding of Aquired Plastics
Albin Abraham ; Akshay H; Amal V Sebastian; Ameen M Azhar; Aswin Krishnan
Mechanical Engineering
Year: 2018, Volume:5, Issue : 1
Pages: 10 - 15
Plastic is one of the most common used materials in the world today. But, they cause serious environmental pollution and exhaustion of landfill space. Among all the plastic products used, the role of plastic bottles in the pollution of our surroundings may it be land, oceans and other water bodies is high. Roughly 200 billion water bottles are produced globally each year. This plastic usually ends up in our landfills to remain for many hundreds of years. This is due to the improper handling of the used plastic bottles. Our project, SCRAP aims at reducing the waste plastic bottles that are dumped recklessly and shredding it into fine granules and later remoulding it into much compact form or to other useful products. An incentive is provided for each plastic bottle deposited. This will encourage active participation in the current generation and makes the users to deposit the bottle inside the device itself and thus reducing the need for additional human resource in collecting the waste plastic bottles. In short SCRAP aims at creating a new revolution in plastic waste management and developing a sense of efficient disposal of waste among public.
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Dynamic Analysis of Delaminated Composite Plate with Finite Element Method
Mr. Dnyaneshwar Hari Chavan ; Dr. S. I. Kolhe
Mechanical Engineering
Year: 2018, Volume:5, Issue : 1
Pages: 16 - 21
As we all know that composite material are widely used in industries because of their incredibly lightweight, high strength-to-weight and stiffness-to-weight ratios. The most common mode of damage in the composite structures is delamination. The specimens of Glass fiber and epoxy resin composite plates are manufactured by the hand-lay-up method with different position of delamination in composite laminated plate for 8 layers. The present study involves finite element analysis to investigate the free vibration of Glass/ Epoxy composite laminate plates with delamination in simply supported boundary conditions based on the comparison between natural frequencies of the healthy and delaminated composite laminate plates by using ANSYS 18.1.
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Studies on Biosorption of Titan Yellow Dye with Hypnea Musciformis Powder and Optimization Through Central Composite Design
Ch A I Raju ; K Sunil
Chemical Engineering
Year: 2018, Volume:5, Issue : 1
Pages: 22 - 41
The major three resources like Air, Water and Food have been polluted and are seeking a special attention for their originality which has to be reestablished. The present research was investigated using Hypnea musciformis powder as a potential biosorbent for the removal of Titan Yellow. The operating parameters involved are agitation time, biosorbent size, and pH of the solution, initial concentration of solution, dosage of biosorbent and temperature of the solution. The optimization was also incorporated using Central Composite Design (CCD). The optimum size of biosorbent is 53 ïm, pH was obtained at 6.0 and initial concentration of INDIGO CARAMINE is 20 mg/L were compared using one factor at a time with CCD. The kinetics and isotherm studies are also studied along with thermodynamic study.
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Effect of Cooling Rate and on the Addition of Magnesium on Microstructure, Hardness and Wear Rate of Al-Cu-Mg Alloys using Sand and Permanent Mould Castings
Amal Krishnan ; Akhil M Joseph; Anantha Krishnan S; Arjun Rajesh
Mechanical Engineering
Year: 2018, Volume:5, Issue : 1
Pages: 42 - 48
An investigation was carried out to understand the effect of Mg addition on the hardness, the wear rate and the cooling rate of cast Al-Cu-Mg alloy. The effect of Mg content was assessed by melting the Al-Cu-Mg alloy in a muffle furnace with the addition of varying wt% Mg (1-3% wt). The cooling curves were plotted for both sand and die castings. The chemical composition of the cast alloy was computed by using arc spectrometry. The microstructural evaluation was carried out using optical and electron microscope. It was observed that the secondary dendritic arm spacing reduced with Mg content concluding that Mg addition improves the formation of nucleation sites and thereby results in grain refinement. The Brinell hardness tester was used to measure the hardness of the alloy. It was found that the hardness increased with Mg content and comparatively, die cast samples showed improved hardness when compared with that of sand cast samples. The hardness of the developed alloy was compared with that of the base alloy and the effectiveness of the alloying element was evaluated. Wear test was carried out using the Pin-on-disc wear testing apparatus under dry sliding conditions in air. Reduction in mass loss was observed with Mg addition. The effect of Mg on UTS, Young’s modulus and elongation were also evaluated. Salt water immersion test with 5% NaCl solution was carried out for 120 hrs and no weight loss was observed. The alloy was developed and the effect of cooling rate and on Mg addition on the mechanical and wear properties of cast Al-Cu-Mg alloy was assessed. The effect of heat treatment on the properties will be carried out as a future work.
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Construction of Control Charts for Some Circular Distributions
P. Srinivasa Subrahmanyam ; A. V. Dattatreya Rao
MATHEMATICS
Year: 2018, Volume:5, Issue : 1
Pages: 49 - 59
Quality is one of the most essential characteristics of any product. Monitoring and controlling quality is a continuous process. Statistical Process Control (SPC) is a quality control technique using statistical methods for monitoring and controlling the quality. Control charts are one of the most important tools of SPC. Laha and Gupta (2011) applied the concept of control charts to circular distributions such as Von mises, Wrapped Cauchy, Wrapped Normal and Cardioid distributions. Taking a cue from this work, an attempt has been made in this paper to extend this concept of control charts to two circular distribution developed by Srinivasa Subrahmanyam et al (2017), namely the Wrapped Exponential Inverted Weibull distribution (WEIWD) and Wrapped New Weibull Pareto Distribution(WNWPD). For these two distributions, the control charts at different sets of values of parameters are constructed, the theoretical values for Central Ray (CR), Anticlockwise Control Ray (ACR) and Clockwise Control Ray (CCR) angles are obtained, the acceptance region and rejection region at the theoretical values are identified and the expansion and contraction of the acceptance region with respect to change in parameter values are studied. The estimates for CR, ACR and CCR angles and their respective circular variances are computed and the impact of simulation size and sample size on the ACR and CCR angles and their circular variances are studied. Also, an effort has been made to figure out a reasonable simulation size as well as sample size for finding estimate values for CR, ACR and CCR angles in respect of these two circular distributions.
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Bio-Energy---Highly Adaptable Energy System
Mary Vijaya Ratna A ; Dr. K. Radhakrishna
Physics
Year: 2018, Volume:5, Issue : 1
Pages: 60 - 61
Bio-energy is a unique renewable energy resource with complex and highly heterogeneous value chains. It is the production of energy from living or once living biological materials. Its use can provide benefits in terms of reduction in greenhouse gas emissions and as a means of lessening society’s dependence on fossil fuels. Biomass for energy can be used to provide heat, power and fuel for transport. There is substantial potential to develop a reliable, sustainable and economic supply of biomass and to encourage a multiplicity of uses for bio-energy. Substantial benefits should flow from a coordinated bio-energy strategy involving all relevant government departments and executive agencies. This should be facilitated by the Department of Energy and Climate Change which should be recognized as the Department responsible for leading the development and implementation of the strategy. The strategy should set long-term targets, make explicit roles of domestic and imported supplies of bio-energy, and develop plans for utilization of resources both within and outside government, including winning support from all relevant stakeholders. There is need for better information on land use, and improved understanding of how to optimize the use of available land to produce food, fibre and energy in a sustainable and cost effective manner. Development of large scale bio-refineries, improved methods of harvesting and transport suitable for use on marginal land, and of programmes of education for farmers about sustainable practices are also necessary. It can be confirmed that bio-energy could make a significant contribution to the energy system in a cost effective manner. It would also make an integral contribution to the goal of 80% reduction in greenhouse gas emissions by 2050 In order that users will have confidence in the reliability of supplies of biomass and bio-fuels, it is essential that an efficient domestic system is developed for production of these fuels, at a scale substantially greater than those so far happened. In order to improve the competitiveness of bio-energy, new science and technology can be brought to bear, as this has potential for increasing the supply and reducing the cost of bio-energy.
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Environmental Agents-Mobile Phones
Mary Vijaya Ratna A ; Dr. K. Radhakrishna
Physics
Year: 2018, Volume:5, Issue : 1
Pages: 62 - 63
The chemicals or factors in the environment to which humans are exposed may cause adverse health effects. These are known as Environment Agents. Cellular or Mobile Phones are now integral part of modern telecommunications, which uses radio frequency energy or radiation for mobile communications. They transmit radio waves through network of fixed antennas called ‘base stations’. Large number of users showed adverse health effects which are to be associated with cell phone use. This could potentially be a widespread public health concern. Current scientific evidence has not conclusively linked cell phone use with adverse health problems, but more research is needed. The National Toxicology program studies may help to clarify any potential health hazards from exposure to cell phone radiation. According to cell phone study, in the journal of American Medical Association, mobiles show effect on brain activity .In this study of effects by National Institute of Health scientists, it is found that 50 minutes of cell phone usage elevated brain glucose metabolism. Discrepancies among studies on the effects of Radio Frequency electromagnetic fields from cellular telecommunications highlighted the need for additional research. According to World Health Organization, mobile phone use is ubiquitous with an estimated 6.9 billion subscriptions globally. It will conduct a formal risk assessment of all studied health outcomes from Radio Frequency field exposure by 2016.
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Portable Air Conditioner cum Water Dispenser using Hydrocarbon Mixture
Gino George ; Godwin Michael; Jijo Abraham; Jemin Jomy; Jeswin M. D
Mechanical Engineering
Year: 2018, Volume:5, Issue : 1
Pages: 64 - 72
This project deals with the development of multifunctional unit which can provide hot water, cold water along with regular space/air conditioning. The design mainly consists of compressor, condenser, evaporator, expansion valve, copper coil, temperature and pressure gauges and tumblers. The refrigerant is used as the medium which absorbs and removes heat from the space to be cooled and subsequently rejects that heat elsewhere. This heat of the refrigerant is used to cool the water, which can be then used for drinking purposes. This work investigates the performance of a domestic refrigerator when a propane/butane mixture is used as a possible replacement to the traditional refrigerant R134a which possess high global warming potential (GDP). The used hydrocarbon mixture comprises 64% propane, 36% butane. The hydrocarbons are cheap and possesses an environmentally friendly nature with no ODP (ozone depletion potential) and GDP.
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Project- Scrap Shredding, Collecting and Remoulding of Acquired Plastics
Akash Chirakadavil ; Anandhu S Pillai; Ananthu Krishnan U; C C Varghese; Sreekumar C
Mechanical Engineering
Year: 2018, Volume:5, Issue : 1
Pages: 73 - 76
In the present context need for drinking water during traveling in automobiles is high and passengers faces difficulty in finding trustworthy source of drinking water. The aim of the project is to create purified drinking water in automobiles from the evaporator in the AC unit, which is being drained out. The water being formed in the evaporator is collected in a collecting tray and pumped through water purifier to remove all the dirt and impurities and gets collected in a tank from where it is pumped into the bottles kept on the side of the door. The collected water in the bottle can also be cooled using the cool air coming from the AC unit. Excess water can also be collected into the windshield washer reservoir for further use.
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Abstract
