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Design and Development of Wire Mesh Type Solar Air Heater Unit
Chendake A. D.
Agricultural Engineering
Year: 2015, Volume:2, Issue : 8
Pages: 1 - 5
The Wire mesh type solar air heater is constructed and investigated experimentally for thermal efficiency. The highest daily solar radiation obtained at 12.30 p.m. which was 780 W/m2. At the mass flow rate of 0.00811 kg/s. The highest ambient temperature was obtained at 1.00 p.m. i.e. 33.4ºC. In general, the input temperature was found to be increasing from the morning to afternoon and then it is decreasing with little fluctuation during evening. The maximum temperature difference ΔT was 40°C at 2.00 p.m. The maximum efficiency i.e. 82.81% was achieved at ambient temp. of 31.3ºC during the time of 1.30 p.m. with solar radiation of 658W/m2.
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Dynamic Clustering in Wireless Sensor Networks Based on the Data Traffic Flow and the Node Residual Battery Life Computation
Sachin Sharma ; Professor (Dr.) K C Roy; Professor (Dr.) Dinesh Goyal
Computer Science and Engineering
Year: 2016, Volume:2, Issue : 8
Pages: 6 - 14
Wireless Sensor Networks forms the core of the infrastructural facilities and amenities that constitutes a major part of modern living. Wireless Sensor Networks founds tremendous applications in domains such as theft alarms, wildlife monitoring, radiation/pressure/light/heat sensor networks and the list is endless. It constitutes the core part of the modern Internet of Things (IoT) that will revolutionize the modern living. The Iot specifies a scenario in which the devices can communicate with each other using the internet over a flexible framework and can be programmed to perform specific actions based on the programming customization made by the users. For example, a refrigerator is runs out of milk or bread can email the requirement to the dairy that can entertain the mail and ship a delivery of the same to the location of the refrigerator. As sensor nodes are battery powered, there is a critical aspect to same battery power. This is possible only by avoiding the in-network communication as much as possible. A fraction of communication overhead can be reduced through clustering. In this paper, an approach for dynamic clustering is proposed based on the varying traffic loads to various PAN coordinators so as to maximize the battery life and therefore the network lifetime.
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Cost Optimization of Large Scale Industries
Gupta Gaurav Kumar ; Rahul Sharma
Electrical Engineering
Year: 2016, Volume:2, Issue : 8
Pages: 15 - 18
A major problem faced by bulk power consumers is the fluctuation of pool prices. There are three sources of power. Spot Market, Bilateral Contracts and power from self-producing facilities. The cost of energy from later two sources is generally constant. But the cost of pool price is variable. Hence, this unreliability is the major cause of risk faced by large consumers. This problem is resolved by a program developed in GAMS Software. The practical scenario is optimized for amount of power to be taken from the three sources that fulfils the demand of power through the entire day. The bilateral contract is a “take-or-pay†situation in which once the price is decided it will not vary. Therefore this does not poses a risk, and hence not discussed here. The amount of power self-produced and cost incurred for that is discussed here. The risk of cost variance is calculated. Finally the total cost which is sum of all above parameters is optimized for best solution and minimizing the total cost. In the final equation i.e. the total cost a constant to balance the risk and cost is added. Finally the procurement mix is discussed in the theory for both high as well as low value of risk factor. Hence this method for cost calculation can be very helpful for large consumers to purchase the most efficient amount of energy from any of the three sources to make itself most profitable.
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Application of Computer Aided Engineering in Reducing the Product Development Life Cycle
Vishwas M ; Vishwas M; Vinyas M; Puneeth K
Mechanical Engineering
Year: 2016, Volume:2, Issue : 8
Pages: 19 - 22
Computer Aided Design (CAD) and Computer Aided Engineering (CAE) is the most important and essential tool in product development process. Huge challenge is faced by the companies while integrating CAD and CAE in their design process. The previous studies do not clearly give the impact of CAD and CAE on product development process and particularly its impact on cost and time of development. The study is carried out to show the importance of CAD and CAE as a tool of product development and its effect on the development cost and time when implemented early in the process.
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Formulation and Comparison of Experimental Based Mathematical Model with Artificial Neural Network Simulation Model for Optimal Performance of Cotton Pre-Cleaning Machine
DR. Arvind B. Bodhe ; Dr. J. F. Agrawal ; Dr. V. S. Deshpande
Mechanical Engineering
Year: 2016, Volume:2, Issue : 8
Pages: 23 - 27
Cotton is a natural vegetable fiber produced in many countries of the world. Cotton is the backbone and basic foundation of the world’s textile trade and industry. The cultivation and production of cotton and cloth had been the main agro based businesses in India. This paper presents the formulation and comparison of experimental based mathematical model with artificial neural network simulation model for optimal performance of cotton pre-cleaning machine. The appropriate generalized empirical model for cotton pre-cleaning operation is established. An approach of mini-max principal is used for minimizing process torque of spiked shaft.
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Experimental Studies on Steel-Concrete Composite Beams in Bending
P.Tejeshwara Kumar ; Lotla Sandeep Reddy
Civil Engineering
Year: 2016, Volume:2, Issue : 8
Pages: 28 - 35
The use of composite structures is increasingly present in civil construction works. The steel section located mainly in the tension region and a concrete section, located in the compression cross sectional area, both connected by metal devices known as shear connectors. The main functions of these connectors are to allow for the joint behavior of the beam-slab, to restrict longitudinal slipping and uplifting at the elements interface and to take shear forces. Experimental studies were carried out to study the behavior of steel-concrete composite beam with different spacing of shear connectors subjected to pure bending. Two point loading experimental setup were used for the study of composite beams. The behavior of beams with different shear connector spacing, 75mm, 100mm, 125mm and 150mm were analyzed under pure bending up to the failure. From the test results it is observed that the beam with 125mm spaced shear connector having more strength and toughness under loading. This paper presents a study of the behavior of steel-concrete composite beams and presenting the most effective section from the results. A comparison with the conventional concrete also carried out with composite construction.
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Optimization of Treatment for Fractured Clavicle Bone Using Finite Element Analysis
Mohammad Muneer Uz Zaman ; Prof. K.I. Ahmad
Mechanical Engineering Design
Year: 2016, Volume:2, Issue : 8
Pages: 36 - 38
The clavicle bone is the only long bone in the body that lies horizontally. The method used by surgeons for treatment of clavicle bone fractures is intramedullary nailing, hook plate, Kirschner wire and plate fixation method. In intramedullary nailing a specially designed metal rod is inserted into the marrow canal of the clavicle. The rod passes across the fracture to keep it in position. It is screwed to the bone at both ends. This keeps the nail and the bone in proper position during healing. In plate fixation method a plate is used as fixing medium as the fractured bone is screwed to the plate firmly which holds the bone in desired position for healing. The metal rod and plate come in various lengths and diameters to fit most clavicle bones. Therefore need for doing to find more feasible method for treatment of clavicle bone with providing maximum strength possible to the bone in fractured state.
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Licensing of Spectrum for Mobile Service in the Frequency Band of 900 MHz in Thailand
Settapong Malisuwan ; Wassana Kaewphanuekrungsi; Noppadol Tiamnara; Dithdanai Milindavanij
Telecommunication Engineering
Year: 2016, Volume:2, Issue : 8
Pages: 39 - 45
In Thailand, the National Broadcasting and Telecommunications Commission (NBTC) has established a policy on spectrum management and use of spectrum which are national communications resources, considering the utmost public benefits at national and local levels in education, culture, State security and other public interests including fair and free competition, as well as the procedures that will ensure thorough and appropriate distribution of benefits to various services and in line with State policy for the development of digital economy. On December 15, 2015, the NBTC conducted the spectrum auction to grant 900 MHz spectrum licenses by way of auction according to the licensing criteria and procedures prescribed in the NBTC’s Notification regarding Criteria and Procedure for Spectrum Licensing for Telecommunications Service in the Frequency Band of 895 – 915 MHz/940 – 960 MHz. The objective of this paper is to review the licensing criteria and procedures for the 900 MHz Spectrum Licensing. The spectrum auction procedures are described and also the result of the auction is discussed in this paper. The paper also explains the positive impacts of spectrum licensing on national economy through the further expansion of 3G and 4G networks in Thailand.
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Metric Based Approach for Measuring Data Quality
Shivani Gaba ; Deepika Gaba; Atul tomar
Computer Science and Engineering
Year: 2016, Volume:2, Issue : 8
Pages: 46 - 51
Due to the increase in the predicaments of data handling, the need for improving the quality of data arises to reduce its insidious effects over the performance. If the cause of the hindrance is analyzed, it is better to commence the data quality improvement plan by assessing all the scenarios affected previously. Values for measuring the quality of data should be constituted in this. The quality of data should be measured so as to evaluate the importance of the information and how can it be improved. Nevertheless, the primitive matter is to understand that what and how quality should be measured as it is said, "if you can’t measure it, you can’t manage itâ€. [Peter Drucker] The foremost step here is to focus on the elements of the data that are considered critical based on the needs of the user in the business. The quality of data can be measured and improved using the metrics methodology. This writing tries to represent how quality of can be quantified for selected dimension. At first, several requirements for defining a metric for measurement are stated. Furthermore, analysis of metrics is discussed with respect to the requirement of the company to improve data quality. After that, on the basis of available approaches, new metrics for the dimensions completeness and timeliness that meets the defined requirements are derived. Lastly, evaluation of the derived metric for timeliness is done in a case study.
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Modelling of Soundness Property-Coarse Aggregates
Sajad Ahmad ; Sadam Hussain; Mohd Awais; Ashfaq Amin Najar; Sadam Hussain
Civil Engineering
Year: 2016, Volume:2, Issue : 8
Pages: 52 - 66
In the past several attempts have been made to develop a relationship between the compaction characteristics and the CBR of different groups of soil. Large scale road constructions are taking place over the length and breadth of India due to adoption of various intensified activities in road construction in India like PMGSY, etc. As a result huge quantity of aggregate material is being needed for the constructions of sub-base in most of the situations. For that aggregates are collected from extensive areas. Such aggregates may have larger variations in their engineering properties due to variety of reasons. But proper estimation of variation in properties of the materials used for construction work can only ensure the satisfactory performance of the constructed road with cost effectiveness. The soundness property test result is one of the important parameter used effectively for such assessment. But in practice only limited number of such tests could be performed for evaluating these engineering properties because of high cost and time required for testing and as a result, it is difficult to reveal detailed variation in the soundness values to enable rational, economic and also safe construction. One of the most important property of aggregates is the resistance to weathering action or soundness .The stone aggregates should retain the strength characteristics and should not disintegrate under adverse weather conditions including alternate dry and wet/freeze-thaw cycles or in other words the aggregates should have enough durability or resistance to weathering action. In absence of adequate information from performance studies, a laboratory test simulating accelerated weathering condition is created to judge durability or soundness of aggregates. Soundness test takes at least 10 days for completion. In such cases if the estimation of the soundness value could be developed on the basis of some tests which are quick to perform, less time consuming and cheap, then the process will help the constructors enormously. In this view an attempt has been made to develop a correlation between the various physical characteristics of aggregates from different sources across Kashmir valley and adjoining areas in J&K, so as to develop a mathematical model depicting relationship between other physical characteristics & soundness property of aggregates. Using various softwares (such as NLREG-Nonlinear Regression and Curve Fitting; MRA&F; XLSTAT), a general relationship between the soundness property and other various characteristics of aggregates (from J&K) has been developed. In this study comparison of soundness property with various other properties of aggregates by the help of mathematical models and validation of the devised mathematical models has been made.
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Abstract
