International Journal of Engineering and Innovations http://ijei.in/index.php/ijei <p>International Journal of Engineering and Innovations <strong>[IJEI</strong>] is published by <strong>VEMU Institute of Technology.</strong></p> <p>International Journal of Engineering and Innovations [IJEI] is an open access, scholarly peer-reviewed, and academic research journal for scientists, engineers, research scholars, and academicians, which gains a foothold in Asia and opens to the world, aims to publish original, theoretical and practical advances in Computer Science,Information Technology, Engineering (Software, Mechanical, Civil, Electronics &amp; Electrical), Management and Information Sciences and all interdisciplinary streams of Computing Sciences. It intends to disseminate original, scientific, theoretical or applied research in the field of Computer Sciences and allied fields. It provides a platform for publishing results and research with a strong empirical component.</p> <p>International Journal of Engineering and Innovations [IJEI] aims to bridge the significant gap between research and practice by promoting the publication of original, novel, industry-relevant research. Authors are cordially invited to submit the full-length paper, Original and unpublished research articles, based on theoretical or experimental works, are solicited for publication in the journal. Submission of an article implies that the work described has not been published previously (except in the form of an abstract or academic thesis) and is not under consideration for publication elsewhere.</p> Vemu Institute of Technology, P.Kothakota, Tirupathi-Chittoor Highway, Chittoor District, Andhra Pradesh, India, 517112 en-US International Journal of Engineering and Innovations LOSS OF HEAD DUE TO NON-UNIFORM FLOW THROUGH POROUS MEDIA http://ijei.in/index.php/ijei/article/view/2 <p>Study of seepage flow through soil strata of convergent confined aquifer is of complex nature. An attempt has been made to analyse the resistance of fluid flow through convergent duct with dimensions along transverse direction varying from 1000 mm at top and 200 mm at bottom and the height of the duct along longitudinal direction is 1050 mm and width of duct between two parallel confining surfaces is 200 mm filled with porous media of size 14.50 mm crushed rocks for better understanding purpose for certain extent. The total energy loss per unit weight of flowing fluid through boundary of the convergent duct and along the centre of the convergent duct for different bed slopes varying from 60<sup>0</sup> to 90<sup>0</sup> are analysed. The variation of Darcy parameter, a<sub>c</sub>, and non-Darcy parameter, b<sub>c</sub>, which are influenced by the properties of the fluid and porous media, are determined from a plot of i/V versus V along the longitudinal direction of converging duct and along the transfers direction of converging duct are studied to explore the indescribable complex nature of resistance flow through porous media. It is also investigated how the volume flux of fluid is affected when it flows through convergent duct when the media is being packed with porous media with varying bed slopes from 60<sup>0</sup> to 90<sup>0</sup>.</p> Bhanu Prakasham Reddy N. Krishnaiah S. Ramakrishna Reddy M. Copyright (c) 2019 International journal of Engineering and Innovations 2019-12-26 2019-12-26 1 1 1 26 Thermal efficiency Improvement of Direct Absorption Solar Collector using TiO2- Water Nano fluid http://ijei.in/index.php/ijei/article/view/3 <p>In the present work thermal performance of Direct Absorption Solar Collector (DASC) with TiO<sub>2</sub>-water (nano fluid) as working fluid was investigated experimentally. DASC utilizes the principle of volumetric absorption i.e. solar energy absorbed by a thin film of working fluid flowing over the collector plate. The experimental study was carried out in four phases; in first phase flow rate was kept 2 lpm and volume fraction of nanofluid was changed from 0.001% to 0.007%, in second and third phase same procedure was followed for 2.5 lpm and 1.5 lpm flow rates respectively. In fourth phase the experiment was carried out with water for 1.5 lpm, 2 lpm and lpm and the performance of collector was analyzed. Results obtained suggest that for water as a working fluid, thermal performance of the DASC at 2 lpm was better. Secondly, when nano fluid was used as a working fluid, thermal performance of the collector was found better for 0.005% volume concentration.</p> Sreenivasa Rao Ch. Gupta AVSSKS Copyright (c) 2019 International journal of Engineering and Innovations 2019-12-01 2019-12-01 1 1 27 32 Analysis of Roll Cooling System in Hot Strip Mill http://ijei.in/index.php/ijei/article/view/4 <p>Hot Strip Mill (HSM) in Jindal Vijayanagara Steel Limited (JVSL), Toranagallu, Bellary (Dist.), Karnataka is facing a problem such as shorter campaigns, improper strip profile, reduced productivity and increased roll cost. The main cause of these problems is an ineffective work roll and backup roll cooling system for roughing stands. An attempt has been made to design the existing system in terms of number and flow rate of nozzles, nozzle angle and orientation and thermal gradient for various rolling schedules.</p> Srikar Gemaraju Copyright (c) 2019 International journal of Engineering and Innovations 2019-12-26 2019-12-26 1 1 33 39 Comparative Analysis of Decimal Addition Using Different Techniques http://ijei.in/index.php/ijei/article/view/6 <p>Arithmetic operations of any of the digital devices like Calculator, computers, microcontrollers and other specialized digital systems are on the Base 10 number system only. By Representing these kinds of numbers in BCD the decimal precision applications has DSP, DIP are required in computer arithmetic. An adder for that kind of application must have arithmetic modules that are worked based on coded decimal numbers and data as stored in the similar number format. In this paper, we proposed a decimal adder which is on FPGA based Mixed BCD/excess-6 technique that gives the better performance of decimal adders intended high-end FPGAs. We design adder with help of CLA(CLA), but in this paper, we implement a method decimal adder using carry increment adder (CIA) and to analyzing area and delay are compared with the existing decimal adder. The results of the new decimal adder efficiently improved features like area and delay. There are different types of possible decimal adder circuits, depending upon the code used to perform the decimal digits.</p> Haridhar B. Yugesh D. Copyright (c) 2019 2019-12-01 2019-12-01 1 1 40 46 Qualified Image Watermarking with Approximate Adders Using Xilinx System Generator http://ijei.in/index.php/ijei/article/view/7 <p>Image security is playing a key role in present real-world situations as the data transferring is mainly through digital images which may not secure. Hence, we present a novel algorithm for image watermarking using the error recovery adder and discrete wavelet transform. This process involves the hiding of one secret image into the host image qualitatively. For this process error recovery adder (ERA) is used to select the dynamic threshold value from the minimum values of the secret and host image. This error recovery adder reduces delay of the process. This work consists of both embedding and extraction process. The experimental consequences propose that the projected method provide results with high PSNR values.</p> Reshma Sk. Naga Keerthana Devi E. Copyright (c) 2019 2019-12-01 2019-12-01 1 1 47 52