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847 articles for “Estimation”
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A Review on Cascade Tripping and Islanding Scheme
Abstract: Large black outs typically involve sophisticated and cascading chains of events. Giant blackout though sporadic, is expensive to society with estimates of direct prices up to billions of bucks. There also are indirect prices like attainable social disruptions and also the propagation of failures into different infrastructures like communications, water system, fossil fuel and transportation. The very important importance of electrical power to our society motivates continuing attention to maintaining …
Published in Journal of Power Electronics and Power Systems · Vol. 7, Issue 2, 2017 · pp. 24–27 Read article
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Comparative Analysis of Artificial Intelligence-based MPPT Algorithms for Wind Energy System
Abstract: By extracting maximum possible power from a wind generator system, the efficiency of the system can be increased. Radial basis function (RBF), feed forward back propagation (FFBP) and adaptive neuro-fuzzy inference system (ANFIS) are recognized as the universal estimators. This paper presents a single network based maximum power point tracking (MPPT) of a wind turbine system using these algorithms. The single network based maximum power extraction method is simple and …
Published in Journal of Power Electronics and Power Systems · Vol. 10, Issue 3, 2020 · pp. 7–18 Read article
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Fuel Cell Technologies for Automotive Applications
Abstract: About 175 years have passed since the invention of the Fuel Cell by Schoenbein und Grove, however, fuel cell-based automobiles have received increased attention in the last few years due to growing public concern over urban air pollution and consequent environmental problems. Direct combustion of fuel for transportation accounts for over half of greenhouse gas emissions and a significant fraction of air pollutant emissions. Fuel cell power systems for automotive …
Published in Journal of Power Electronics and Power Systems · Vol. 12, Issue 1, 2022 · pp. 1–15 Read article
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ASSESSING RISKS OF FIRE ITS CONSEQUENCE MODELLING AND DETECTION SYSTEMS FOR OFFSHORE INDUSTRIES
Abstract: Offshore industries are well recognized all over the world for its complex conditions, geometry, robustness, and rigidness. A small mistake can immediately escalate to catastrophe, of all the accidents reported till date fire is the most frequently reported one. Major accidents like the Deepwater Horizon, piper alpha has taught entire crude industry a lesson on how important it is to prevent fire occurrence. therefore, it is necessary to study fire …
Published in Journal of Petroleum Engineering & Technology · Vol. 8, Issue 1, 2018 · pp. 11–16 Read article
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GAS HYDRATES AN UNCONVENTIONAL RESOURCE FOR FUTURE
Abstract: AbstractThis paper presents an overcome of Gas hydrates (GH) as a potential alternate to India’s energy source. Gas hydrates are Icy-white crystalline form approximately 99% of gas and 1% of water which are found under high pressure & low temperature in places such as permafrost (polar) region, shallow offshore sediments of arctic &sub-arctic region, and Deep ocean sediments in the tropic regions. This term have attracted some Energy-Starving countries like …
Published in Journal of Petroleum Engineering & Technology · Vol. 8, Issue 2, 2018 · pp. 22–26 Read article
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CFD simulation of methane flow through an orifice plate
Abstract: In this paper the effects of errors in the flow rate and discharge coefficient when Methane (CH4) flow through orifice plates with flange tapping has been investigated by the Computational Fluid Dynamics (CFD). The location of vena- contracta was also estimated from CFD simulations. Outcomes of the CFD simulations are in terms of profiles of pressure and velocity. In this study a numerical investigation of the flow characteristics behavior caused …
Published in Journal of Petroleum Engineering & Technology · Vol. 9, Issue 1, 2019 · pp. 1–6 Read article
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A Model Approach of Controlling Coning in Oil Rim Reservoirs
Abstract: Water and gas coning in oil rim reservoirs poses serious hindrance to optimizing oil production in the thin oil beds as unwanted fluids tend to replace oil in the production stream. This invariably limits the ultimate oil recovery. In this study, semi-analytical models of estimating critical rate and optimum horizontal well placement were developed to control coning tendencies in oil rim reservoirs. The models were developed through semi-analytical analysis of …
Published in Journal of Petroleum Engineering & Technology · Vol. 2, Issue 1-3, 2012 · pp. 1–10 Read article
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Non-linear Singular Integral Equations for Multiphase Flows in Petroleum Reservoir Engineering
Abstract: A very important problem of petroleum reservoir engineering is investigated by the present research. Consequently, an innovative and groundbreaking mathematical approach is introduced for the determination of the properties of the earth subsurface, when oil reserves together with water are moving through porous media. So, the multiphase flow problem of petroleum together with water is reduced to the solution of a non-linear singular integral equation, which is numerically solved by …
Published in Journal of Petroleum Engineering & Technology · Vol. 2, Issue 1-3, 2012 · pp. 73–82 Read article
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Thermodynamic modelling of the effects of high temperatures on brine fluid density
Abstract: Current trends in oil discoveries points to deep water zones characterized by temperatures ranging from 150oC to 350oC which needs good prediction of the fracture pressure and pore pressure hence imperative to continually understand temperature-density relationships of the fluids which are pumped downhole for well control. This paper seeks to propose a new, cost effective and easier method of estimating the reduction in density of brine completion fluid as it …
Published in Journal of Petroleum Engineering & Technology · Vol. 9, Issue 1, 2019 · pp. 26–35 Read article
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Examination of Recycled Used Lube Oil Using Niger Delta Locally Source Material
Abstract: Present research work was conducted to demonstrate in detail the acid-clay recycling processes of used lube oil techniques and treatment. Adequate attention is given to these techniques employed in the recycling of used lube oil. A major menace today is the uncontrolled dumping and improper disposal of used lube oils, the magnitude which is conservatively estimated to be very high and therefore threatens our environmental existence. A comparative study was …
Published in Journal of Petroleum Engineering & Technology · Vol. 10, Issue 3, 2020 · pp. 9–14 Read article
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Liquefied Oxygen Fracturing: A Simulative Approach
Abstract: The entire project is a work on the simulation of fracture design on a new potential fracturing fluid liquefied oxygen. The purpose of this study was to conduct a comparative study between hydraulic fracturing and cryogenic fracturing (liquefied oxygen) for the same reservoir having same properties to generate potential information on intrusion of fracturing fluid, pumping criteria, final stage pump pressure, required pumping time for both the fluids water as …
Published in Journal of Petroleum Engineering & Technology · Vol. 11, Issue 1, 2021 · pp. 43–51 Read article
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An analytical study of the technological & managerial advancements in the sedimentary basins of Brazil with special emphasis on Campos basin over a period of 5 decades
Abstract: Once a basin is found to be economically viable after the G&G studies and various reserve estimation methods it has to be exploited for the extraction of hydrocarbon. The basin consists of numerous wells drilled at different depths depending upon the stratigraphical variations in it. For the purpose of drilling a well and installation of production facilities over the life of well and basin, the technology deployed initially will have …
Published in Journal of Petroleum Engineering & Technology · Vol. 11, Issue 3, 2021 · pp. 19–31 Read article
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IoT Enabled Production Scheduling
Abstract: In the world of high competition between various firms; it is important that firms plan their production in advance. This will help them maximize the use of available resource and facilities. Production scheduling discusses the process of assigning an order to machines considering the total time available, required time, type of order and to arrange these orders in such way that machine idle time is minimized. By legitimate planning, firms …
Published in Journal of Production Research & Management · Vol. 8, Issue 3, 2018 · pp. 16–23 Read article
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A New Model for Calculating Customer Lifetime Value on Monetary, Interpurchase Time and Retention
Abstract: Customer lifetime value(CLV) is an important an index to help company measure its customer value and allocate its marketing resource efficiency. CLV model bases on economic concept to calculate customer value with their purchase behavior.This paper construct a new model for calculating customer lifetime value on monetary, interpurchase time and retention. The empirical data of a credit card company is used to estimate parameters and compare the predicting results with …
Published in Journal of Production Research & Management · Vol. 11, Issue 2, 2021 · pp. 1–8 Read article
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Study and Analyze the Importance of Leadership in Modern Business
Abstract: The beginning point for this chapter was to bring together the investigation regions of organizationalstandards, innovation and alter, and information operation. The center was on innovation from the pointof view of organizational ponders and the method of information sharing in affiliations. It too incorporatesthe conception that specific information is a critical source of organizational information and investigatesthe interface between specific information utilized and organizational innovation forms. In spite of the …
Published in Journal of Production Research & Management · Vol. 12, Issue 2, 2022 · pp. 8–15 Read article
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The Role of Electronic Social Media in Electoral Campaigning of Indian General Elections 2014
Abstract: Internet and digital technologies have revolutionized communication. With the increasing proliferation of internet, electronic social media is emerging as a potential tool for communication. It provides direct channel for communicating, connecting and engaging with public. Social media offers innovative opportunities for political leaders, institutions and the public to interact in a two way communication process with each other. It is becoming increasingly popular with politicians and their organizations as a …
Published in Journal of Production Research & Management · Vol. 5, Issue 3, 2015 · pp. 28–33 Read article
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Smart Blind Stick
Abstract: In accordance to World Health Organization statics, 253 million people are currently living with vision impairment, 36 million of which are blind, and 217 million who have moderate severe vision impairment. Mostly people aged 50 and above are blind as WHO estimated that 81% of the blind population are adult peoples. Due to a variety of factors, number of visually impaired persons is anticipated to rise in the future. As …
Published in Journal of Semiconductor Devices and Circuits · Vol. 8, Issue 3, 2021 · pp. 23–46 Read article
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Study of Trapezoidal Shaped Retaining Wall with Varying Geometric Parameters
Abstract: AbstractRetaining walls play a critical role in the protection of structures from damage related to soil collapse, but many property holders are unconscious of just how integral these walls are to the overall health of their property. Properly constructed and well maintained retaining walls not only mitigate soil erosion and wash-out after excavation, but also keep soil from collapsing. Soil collapse can put your structure at risk for damage and …
Published in Journal of Structural Engineering and Management · Vol. 5, Issue 2, 2018 · pp. 69–73 Read article
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Seismic Performance of Flat Slab Buildings Considering P-Delta Effect
Abstract: Flat slab structures are becoming quite popular due to functional and architectural advantages. The flat slab structures are flexible when compared to framed structures as the slab is directly columns. Typically the seismic forces in such a structure are resisted by shear wall systems. Under design seismic conditions the lateral displacements are large and the columns deform along with the lateral load resisting system. Under such conditions the columns are …
Published in Journal of Structural Engineering and Management · Vol. 7, Issue 1, 2020 · pp. 10–16 Read article
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Developing Design Charts for Lateral Loads in High Seismic and High Wind Zone of Bangladesh According to BNBC 2020
Abstract: This study investigated seismic base shear and wind base shear for typical residential building of different story according to newly adopted BNBC 2020, which is a regional modification of ASCE 7-05. For the study we considered six building of different height and lateral load resisting system situated in high seismic and high wind zone, Chattogram, Bangladesh. For this reason, three-dimensional building model was prepared using ETABS V.18 with loading provisions …
Published in Journal of Structural Engineering and Management · Vol. 9, Issue 1, 2022 · pp. 34–43 Read article