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1967 articles for “casing” (ranking capped at the first 2,000 matches — narrow the search to see the rest)
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Study and Analysis of Polymer / Composite Thermal Insulation Material and Comfort Based Building Simulation with Applicability of Evaporative Cooling
Abstract: In India, about 35% of India's electrical energy is absorbed by buildings. Of this, the significant consumption is for the cooling purpose in building. Passive cooling systems, by comparison consume considerably less energy than mechanical cooling systems. Therefore, it is very important to understand the applicability of the passive cooling system by conducting comfort-based simulation of building as well as an examination of the influence of thermal insulation composed of …
Published in Journal of Polymer & Composites · Vol. 9, Issue 2, 2021 · pp. 21–29 Read article
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Performance Analysis of Combined Application of FACTS and HVDC Parallel Tie-Line for Interconnection and Synchronization of Large Thermal Power Grid
Abstract: This research work shows the working principle of two combined cases and application of flexible AC transmission system tie-line and high voltage direct current tie-line for interconnection and synchronization of two large thermal power grid system of 12 areas when load disturbance occurred in power grid-1 ΔPL6 = 0.01 pu. This research work is done with two interconnected linear, conventional and traditional thermal power grid system of 12 areas accepted …
Published in Journal of Power Electronics and Power Systems · Vol. 7, Issue 3, 2017 · pp. 1–16 Read article
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Electromagnetic Transients of a Sagging Conductor above Lossy Earth—Effect of its Loading and of the Earth Parameters
Abstract: This paper addresses the electromagnetic transients of a non-uniform overhead transmission line conductor with due consideration of its receiving-end load, its sag and of the earth parameters. The concept of the complex penetration depth is adopted in the formulation of the line’s equations in the s-domain. A relation for the conductor height as a function of the longitudinal co-ordinate is derived and incorporated in the analysis. The two simultaneous differential …
Published in Journal of Power Electronics and Power Systems · Vol. 7, Issue 3, 2017 · pp. 47–59 Read article
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A Contribution to the Frequency and Transient Analysis of High Voltage Bushings
Abstract: The paper suggests a method for determining the frequency characteristics and transient response of capacitively graded high voltage bushings. It is based on an s-domain circuit model that describes the grading conducting foils and the insulating layers. In most cases, they are of different axial lengths. A system of simultaneous differential and algebraic equations is derived taking these differences into account. Its closed-form solution, subject to the boundary conditions, can …
Published in Journal of Power Electronics and Power Systems · Vol. 9, Issue 1, 2019 · pp. 15–26 Read article
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Hidden Buck Chopper Circuits Topology in a Switch Controlled Singe Phase Rectifier, Size and Cost Analysis
Abstract: This paper shows hidden buck chopper circuits topology in a single phase switch controlled full wave rectifier. Justification of this realization yields the opportunity to use the single circuit structure for both AC to DC and DC to DC conversion processes. Generally, two diodes out of four diodes are replaced by two switches to offer voltage gain and input power factor regulation in a single phase full wave rectifier. Such …
Published in Journal of Power Electronics and Power Systems · Vol. 5, Issue 2, 2015 · pp. 17–28 Read article
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The Frequency Characteristics of Transformer Windings Considering the Separation-Dependence of the Inter-Turn Mutual Parameters
Abstract: The paper presents a direct method for the determination of the frequency characteristics of transformer windings. The dependence of both the inter-turn mutual inductances and capacitances on the separation between these winding turns is taken into consideration. From measured data available in the literature, a formula for this dependence is derived. The voltage and current distributions along the winding will be governed by two integro-differential equations in terms of the …
Published in Journal of Power Electronics and Power Systems · Vol. 6, Issue 3, 2016 · pp. 72–81 Read article
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Optimal Capacity of Pump Storage System for Standalone Green Microgrid Interconnection with Main Grid in Deregulated Power Sector
Abstract: The energy crisis requires more generation capability, and is more importance to the storage technologies. To overcome this shortage of energy, pump storage system is used in the power system with great storing capacity up to this time. The isolated or regional grid in remote areas probably depends on renewable power sources such as wind; solar, geothermal, tidal, etc. with its availability is the main power resources. It is quite …
Published in Journal of Power Electronics and Power Systems · Vol. 6, Issue 2, 2016 · pp. 100–114 Read article
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The Energization Transients of 6-Pulse Rectifier Circuits
Abstract: This paper addresses the energization transients of 6-pulse rectifier circuits. It applies anefficient representation of the diodes in order to describe their performance in both theforward and reverse directions. Without any loss of generality, the suggested method isapplied to the classical un-controlled six-valve full-wave rectifier bridge configuration. Theeffect of the load resistance, the eventual presence of smoothing shunt-capacitors and seriesinductors as well as the waveform of the supply voltage is …
Published in Journal of Power Electronics and Power Systems · Vol. 10, Issue 1, 2020 · pp. 18–30 Read article
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A Novel Hybrid Power System for Urban or Remote Household Uses
Abstract: Implementation of renewable energy sources powered by wind has its limitations comparing to the same powered by solar cells and the latter is more practical in many cases. Again using solar cells in integrated applications many times introduces unnecessary complexity and high cost compared to the utilization they can serve. This paper proposes a photo-voltaic (PV) cell that serves as power source, an inverter and the utility grid together that …
Published in Journal of Power Electronics and Power Systems · Vol. 12, Issue 3, 2022 · pp. 1–8 Read article
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Oilfield Disaster Management
Abstract: Recently a significant number of accidents in offshore oil and gas industry have made us more concerned about enhancing the operational safety in offshore drilling and production worldwide. There is an urgent need of looking into the above problems by the operators, regulators and the stakeholders of the oil and gas industry. Compiling and analyzing the key factors, facilitating the sharing of the learning experiences, and interacting with the industry …
Published in Journal of Petroleum Engineering & Technology · Vol. 7, Issue 2, 2017 · pp. 21–28 Read article
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Review of Radial Drilling Technology and Viable Prospect in Mature Field Development in the Niger Delta
Abstract: A review of some Niger Delta oil field reservoirs indicates that most of the reservoirs are at the mature stages, thereby vulnerable to challenges such as; coning due to reduced size of the oil column, low oil production and lack of access to the residual oil trapped between existing wells of the mature field. Due to coning occurrences in the Niger-Delta oil field, most wells have been shut-in and a …
Published in Journal of Petroleum Engineering & Technology · Vol. 5, Issue 2, 2015 · pp. 60–66 Read article
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Simulation and Optimization of Syngas Generation Process (GTL Stage I) using ASPEN Hysys
Abstract: The process of gas to liquid (GTL) conversion has been divided into three sections (section I: natural gas treatment and syngas production; section II: is Fischer Tropsch Synthesis sections (Main Reactors) and Stage III: Upgrading and treatment section).This work is mainly for Stage I. whereby Natural gas dehydration unit is simulated using Tri-ethylene Glycol to dehydrate the natural gas which includes (Free Water Knockout Drum (FWKD), Absorber and Distillation). Sweetening …
Published in Journal of Petroleum Engineering & Technology · Vol. 10, Issue 2, 2020 · pp. 48–67 Read article
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Chemical Enhanced Oil Recovery Designed for a Local Sudanese Oil Field
Abstract: Chemical enhanced oil recovery (CEOR) is a method for increasing recoverable oil from reservoirs. For the past decade, several successful chemical injection projects have been carried out around the world. The SSA main oil field is a suitable candidate for CEOR methods, according to previous studies in a screening of EOR methods for Sudanese oil fields; the field is good OOIIP 161.18 MMSTB, with only 23 percent produced. The general …
Published in Journal of Petroleum Engineering & Technology · Vol. 12, Issue 1, 2022 · pp. 34–43 Read article
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Development of Overall Process Effectiveness for Continuous Flow Line in a Semiautomated Manufacturing System
Abstract: This paper presents Overall Process Effectiveness (OPE), a performance measurement approach in a manufacturing system. OPE evaluates the process parameters of continuous flow production that affect the performance and reliability of the process. Based on the overall equipment effectiveness (OEE) concept, OPE focuses on the evaluation of production processes that involve human and machines. The developed OPE is validated through a case study ininjection molding (IM) industry. OPE plays a …
Published in Journal of Production Research & Management · Vol. 4, Issue 2, 2014 · pp. 43–53 Read article
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Electro Thermal Simulation of AlGaN/GaN HEMT
Abstract: This paper presents electro thermal simulation of AlGaN/GaN High Electron Mobility Transistor (HEMT) without AlN layer nucleation layer and AlGaN/GaN HEMT by introducing AlN nucleation layer. With the help of Silvaco ATLAS lattice temperature of the devices figured out. It is observed that self heating in AlGaN/GaN HEMT without AlN nucleation layer is higher than the self heating in AlGaN/GaN HEMT with AlN nucleation layer. Simulation of lattice temperature inside …
Published in Journal of Semiconductor Devices and Circuits · Vol. 6, Issue 2, 2019 · pp. 18–27 Read article
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Experimental Investigations of Prestressed Hollow Core Slabs and Grouted Hollow Core Slabs
Abstract: With the advent and rapid inclusion of prefabricated concrete system to the construction industry, it poses interesting research challenges to the academic world. The acceptance of hollow-core slab as an alternative to the normal reinforced concrete solid slabs is getting delayed due to the delusion among public. The usage of grouted hollow core slabs by filling the core with grout is one of the increasing demands observed by the hollow …
Published in Journal of Structural Engineering and Management · Vol. 3, Issue 3, 2016 · pp. 16–21 Read article
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Effect of Infill-wall Material Types & Shear Wall on High Rise Buildings: Review
Abstract: In the countries like India, the most common structural system which behaves as exterior and partition walls in the construction of RC frames is masonry infill. So it becomes Substantial to study significance of the masonry infill. Many researchers carried out researches on buildings with the masonry infill walls using red bricks in most of the cases and AAC block in some cases. With increasing construction work, the material used …
Published in Journal of Structural Engineering and Management · Vol. 8, Issue 2, 2021 · pp. 38–44 Read article
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Comparative analysis of with and without P-∆ effect on plan irregular RC structure with different positions of shear wall
Abstract: P-∆ effect is the second order analysis method which is cause due to wind or seismic effect. This secondary effect causes the geometric non-linearity in structure. For high rise structure the P-∆ effect plays the significant role on the building stability because in lots of cases it has been found that failure of tall building is a function of slenderness of building members and second order effect. In P-∆ analysis, …
Published in Journal of Structural Engineering and Management · Vol. 9, Issue 2, 2022 · pp. 24–32 Read article
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Effect on tunnel under varied pile loading using finite element analysis
Abstract: Use of underground space is increasing in densely populated cities. Underground excavation required extensive analysis for ground stability and to ensure the performance of a structure. Specific concerns arise during the design of the underground structures, such as the impact of excavation on nearby ground and existing building in the vicinity of excavation. Above ground structures may subject to disturbances due to any underground construction activity. This paper identifies the …
Published in Journal of Structural Engineering and Management · Vol. 9, Issue 2, 2022 · pp. 32–43 Read article
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Comparative studies of Oxidation and hot corrosion behaviors of uncoated and detonation gun sprayed Cr3C2-25NiCr coating on SA-213 boiler steel at 8000C
Abstract: Fe-based alloys suffer oxidation and hot corrosion when the surfaces were in contact with air (oxidation) as well as the salty atmosphere (Hot corrosion) at elevated temperatures. In these atmospheric conditions, non-protective oxide Fe2O3 was formed on the surface of alloys. Oxidation and hot corrosion have been recognized as a major problem in the applications of the diesel engine, boilers, gas turbines, and chemical power plant etc. Detonation-gun sprayed Cr3C2-25NiCr …
Published in Journal of Thin Films, Coating Science Technology & Application · Vol. 6, Issue 1, 2019 · pp. 17–22 Read article