International Journal of Engineering, Science and Technology https://www.ajol.info/index.php/ijest <p><em>International Journal of Engineering, Science and Technology</em> (IJEST) - an E-journal is an international peer-reviewed, electronic, online journal published by MultiCraft. The aim and scope of the journal is to provide an academic medium and an important reference for the advancement and dissemination of research results that support high-level learning, teaching and research in the fields of engineering, science and technology. IJEST publishes articles that emphasizes research, development and application within the fields of engineering, science and technology. Original theoretical work and application-based studies, which contributes to a better understanding of engineering, science and technological challenges, are encouraged. All manuscripts are pre-reviewed by the editor, and if appropriate, sent for blind peer review. Contributions must be original, not previously or simultaneously published elsewhere, and are critically reviewed before they are published. Papers, which must be written in English, should have sound grammar and proper terminologies.</p><p>Papers are published in IJEST based on the outcomes of the peer-review processes and no article processing fees or publication fees are charged; it is free to publish in IJEST.</p><p>Other sites related to this journal: <a title="https://ijest1-ng.com/" href="https://ijest1-ng.com/" target="_blank"><cite class="gmail-iUh30">https://ijest1-ng.com/</cite></a></p> MultiCraft Limited en-US International Journal of Engineering, Science and Technology 2141-2820 Copyright belongs to the journal Measuring capability of a Poisson process: Relative goodness of the estimates obtained by different approaches https://www.ajol.info/index.php/ijest/article/view/204840 <p>No Abstract.</p> Surajit Pal Susanta Kumar Gauri Copyright (c) 2021-03-19 2021-03-19 12 4 1 13 10.4314/ijest.v12i4.1 Behavior of beam on elastic foundation using element free Galerkin method https://www.ajol.info/index.php/ijest/article/view/204887 <p>One of mesh free methods, element free Galerkin method, is presented to analyze the finite beam on elastic foundation. The shape functions are constructed by using the moving least square interpolation based on a set of nodes that are arbitrarily distributed in specified domain. Discrete system equations are derived from the variation form of system equations. Numerical examples of finite beam on elastic foundation are given by establishing Matlab code. The results of this paper demonstrate the effectiveness of the proposed method with small errors compared to analytical solutions.</p> <p><strong>Keywords</strong>: mesh free method, element free Galerkin method, moving least square, finite beam, elastic foundation.</p> H.T.T. Lan Copyright (c) 2021-03-23 2021-03-23 12 4 14 22 10.4314/ijest.v12i4.2 Experimental investigation on performance, smoke and exhaust gas analysis of four stroke diesel engine using pongomia/neem oil biodiesel https://www.ajol.info/index.php/ijest/article/view/204842 <p>Increase in energy demand, stringent emission norms and depletion of oil resources led to the discovery of alternative fuels for<br>internal combustion engines. Many alternative fuels like alcohols, petroleum gas, and compressed natural gas have been already<br>commercialized in the transport sector. In the present work, Pongomia oil and Neem oil are blended with diesel and used as an<br>alternate fuel for CI engines. The Pongomia oil and Neem oil can be converted into bio diesel using a chemical process of trans- esterification.Different proportions of fuel blends have been produced by the process of blending bio diesel consisting of 10%, 15%, 20%, 25%, and 30% (B10, B15, B20, B25, B30). The fuel properties of each blend are determined. The load test along with smoke and exhaust gas analysis of 4- Stroke Diesel engine using the blends of Pongomia oil and Neem oil with diesel are done in this study. The performance parameters of an engine are calculated for different blends. The sustainability of using alternate fuels in Diesel engines, especially the potential use of Pongomia oil and Neem oil as biodiesel have been brought to the fore through this work and suitable blends of bio diesel is suggested from the results.</p> <p><strong>Keywords</strong>: 4-Stroke Diesel Engine, Pongomia and Neem oil Bo diesel, Performance, Smoke and exhaust gas analysis.</p> Naresh Kumar Konada K.N.S. Suma B.B. Ashok Kumar Copyright (c) 2021-03-19 2021-03-19 12 4 23 40 10.4314/ijest.v12i4.3 Contamination of heavy metals and metalloids of groundwater in the vicinity to the wild landfill of El Hajeb city (Morocco) https://www.ajol.info/index.php/ijest/article/view/204843 <p>No Abstract.</p> A. Gamar T. Zair M. El Kabriti F. El Hilali Copyright (c) 2021-03-19 2021-03-19 12 4 41 53 10.4314/ijest.v12i4.4 A digital signal processor based capacitor inductor inductor resonant converter for stand alone wind energy system using AC analysis https://www.ajol.info/index.php/ijest/article/view/204844 <p>In this paper the CLL (capacitor inductor inductor) resonant converter (RC) with digital signal processor (DSP) based fuzzy controller for stand alone wind energy system has been estimated and the performance of the converter is analysed. The proposed converter has been analyses with the closed loop condition. The fuzzy controller regulates the output voltage with change of supply voltage and load disturbance are carried out. The controller performance of CLL RC is compared through simulation and experimental studies using TMS320F2407 processor.</p> <p><strong>Keywords</strong>: Power electronics, DC-DC power converters, fuzzy control, wind energy system </p> C. Nagarajan R. Prakash Copyright (c) 2021-03-19 2021-03-19 12 4 54 62 10.4314/ijest.v12i4.5