Feasibility Study of Modified Quasi Z Source Inverter for Solar PV Technology

In recent years, Photovoltaic PV power generation systems have always been considered as an alternative energy source that can lighten the rapid consumption of fossil fuels. The current developments in the photovoltaic materials and power converters has emerged this as promising technology. A PV inverter is widely used to convert the photovoltaic energy into electrical energy as most of the demands are in AC voltage, either for local loads or supplied into the grid. Power converter topologies employed in the PV power generation systems are mainly characterized by single or multi stage inverters. 

The Z-source inverter ZSI has a single stage structure to achieve the voltage buck boost character in a single power conversion stage. The energy storage device integrated to Quasi Z-source inverter QZSI topology eliminates need for an extra charging circuit. This upgraded topology acquires the operating characteristics from the traditional ZSI, along with the capability of operating under very low PV power conditions. Its main operating points are classified into two modes, the low PV power mode, where the battery is discharged and the high power mode, where the battery is charge up. 

An extended input power operating range is achieved since the lack of Photovoltaic power can be compensated by the battery. Hence we can conclude that QZSI realize boost buck function in a single-stage with improved reliability, lower component rating, constant DC current from source and good power quality showing an efficient method for the energy-stored PV power generation.

by Shwetha S Baligar | Chandrika S Kukanur | Chaitanya Krishna Jambotkar "Feasibility Study of Modified Quasi Z Source Inverter for Solar PV Technology" 

Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-2 | Issue-6 , October 2018, 

URL: http://www.ijtsrd.com/papers/ijtsrd18839.pdf

Direct Link: http://www.ijtsrd.com/engineering/electrical-engineering/18839/feasibility-study-of-modified-quasi-z-source-inverter-for-solar-pv-technology/shwetha-s-baligar

multidisciplinary journal, submit paper online, indexed journal

Effect of Biodiesel Blends on Diesel Engine

The present research, utilised only renewable oil samples to reduce atmospheric pollution and also to decrease our reliance on fossil oil products and provide a direction towards alternative fuel usage in diesel engines. On a 1-cylinder, naturally aspirated, water-cooled, 4S, CI diesel engine, the tests have been conducted as to create comparative results of performance-emission characteristics in between the blends of conventional diesel, biodiesel thumba, biodiesel polanga and ethanol fuel. 

With the following blends, the diesel engine has been tested as such diesel fuel D100 v v , thumba biodiesel 100 T100 v v , polanga biodiesel 30 with addition of diesel 70 P30 v v , and ethanol 10 with addition of diesel 90 E10 v v . The engine performance parameters BTE of E10 and P30 blend was incremented than the diesel fuel, while the blends T100 was close enough to diesel fuel as well whereas, BSFC data of E10 blend was the lowest in between the others samples and for T100 and P30 also it decreased. 

The emission values for CO, NOx and UHC of the blend samples was less than diesel fuel. The maximum CO2 emission was released by D100 and least by P30 fuel blend, whereas, the unused O2 released was the reverse. The effects of direct inhalation of biofuel blends in IC engine were analysed properly and in near future this alternative oil can be applied in our society.

By Akash Paul | Amiya Bhaumik | Kushal Burman "Effect of Biodiesel Blends on Diesel Engine" 

Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-2 | Issue-6 , October 2018, 

URL: http://www.ijtsrd.com/papers/ijtsrd18841.pdf

Direct Link: http://www.ijtsrd.com/engineering/mechanical-engineering/18841/effect-of-biodiesel-blends-on-diesel-engine/akash-paul

research publication, ugc approved journals for engineering, special issue publication

Estimating Nigerian Power System Post Contingency Line Flows Using Power Distribution Factors

At the point of convergence of any power system AC load flow iterative method, the principal bus parameters necessary to compute the transmission line flows and losses are provided. The exactness and accuracy of the result depends largely on the iterative method and the iteration termination criteria and each operating condition requires a unique solution of the analysis. State estimation techniques are also viable alternatives to AC load flow techniques in estimating network bus parameters from a known state but the speed of estimation is comparatively similar to the AC counterpart. However, the justification for the use of DC load flow for quick estimation of transmission line flows as against the AC is that the resulting mismatch is negligible when used for contingency and security analyses. 

Estimates of transmission line active power flow can be made using linear distribution sensitivity factors whose result match those of DC load flow. These sensitivity factors Power Transfer Distribution Factors PTDF and Line Outage Distribution Factors LODF are calculated and stored for a network and remains valid if the network remains significantly unmodified. With these stored factor from an operating point, post contingency flows may be predicted on any line. 

In this work, the PTDF and LODF of the Nigerian 330kV of 41 bus were computed and stored from a base case, then post contingency flows were predicted for the 77 transmission lines of the network following contingency in the form of 140MW load shedding at bus 1, 50 generator output reduction at bus 2, 100MW generator output increment at bus 20 and 100MW generator output decrease at bus 25. 

The result shows that using sensitivity factors to estimate transmission line flow works as validated by the result from load DC load flow technique. Therefore, a quicker, linear and non-iterative method is validated in order to estimate transmission line flows from a known operating point with the slack bus responsible for active power exchanges. 

By Emmanuel. A. Anazia | Onyedikachi N. Samuel` | Obroh O. Rebecca "Estimating Nigerian Power System Post Contingency Line Flows Using Power Distribution Factors"

Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-2 | Issue-6 , October 2018,

URL: http://www.ijtsrd.com/papers/ijtsrd18854.pdf

Direct Link: http://www.ijtsrd.com/engineering/electrical-engineering/18854/estimating-nigerian-power-system-post-contingency-line-flows-using-power-distribution-factors/emmanuel-a-anazia

peer reviewed journal, manuscript submission, call for paper engineering

Multimodal Biometrics Authentication System using Fusion of Fingerprint and Iris

In the present era of information technology, there is a need to implement authentication and authorization techniques for security of resources. There are number of ways to prove authentication and authorization. But the biometric authentication beat all other techniques. Biometric techniques prove the authenticity or authorization of a human being based on his her physiological or behavioural traits. It also protects resources access from unauthorized users. We will develop a multimodal biometric identification system that represents a valid alternative to conventional approaches. In biometric system physical or behavioural traits are used. 

A multimodal biometric identification system aims to fuse two or more physical or behavioural traits. Multimodal biometric system is used in order to improve the accuracy. Multimodal biometric identification system based on Iris and fingerprint trait based on fuzzy logic is proposed. Typically in a multimodal biometric system each biometric trait processes its information independently. The processed information is combined using an appropriate fusion scheme.

By Miss. Kamble Sunayana Nivrutti | Prof. Gund. V. D. | Prof. Kazi K. S "Multimodal Biometrics Authentication System using Fusion of Fingerprint and Iris"

Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-2 | Issue-6 , October 2018, 

URL: http://www.ijtsrd.com/papers/ijtsrd18861.pdf

Direct Link: http://www.ijtsrd.com/engineering/electronics-and-communication-engineering/18861/multimodal-biometrics-authentication-system-using-fusion-of-fingerprint-and-iris/miss-kamble-sunayana-nivrutti

paper publication, submit paper online, indexed journal

Performance Analysis of K-mean Clustering Map for Different Nodes

WSNs is a group of inexpensive and autonomous sensor nodes interconnected and work together to monitor various environmental conditions such as humidity, temperature, pressure, and other climate changes. Wireless sensor nodes are randomly installed and communicate themselves through the wireless communication medium. In this paper we compared the simulation results of the K-mean techniques for different numbers of nodes like 50, 100 and 150.

By Subham Bhawsar | Aastha Hajari "Performance Analysis of K-mean Clustering Map for Different Nodes" 

Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-2 | Issue-6 , October 2018, 

URL: http://www.ijtsrd.com/papers/ijtsrd18859.pdf

Direct Link: http://www.ijtsrd.com/engineering/electronics-and-communication-engineering/18859/performance-analysis-of-k-mean-clustering-map-for-different-nodes/subham-bhawsar

open access journal of engineering, ugc approved journals for engineering, special issue publication

Efficient Design of 2 1 MUX Multiplexer using Nanotechnology Based on QCA

Quantum Dot Cellular Automata is a new technology which overcomes of the of CMOS limitations. It is an novel advanced nano-technology that revolves around the single-electron position control. It is one of the most efficient and emerging nano-technology which mainly deals with the effect of electrons inside the quantum dots in QCA cell, and it is the best alternative technology in the nano-electronics level architectural field. In this paper, we designed a 2 1 Multiplexer, which is more efficient in the term of area and cells to the other designs. 

By Sohan kumar Dahana | Aastha Hajari "Efficient Design of 2:1 MUX (Multiplexer) using Nanotechnology Based on QCA" 

Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-2 | Issue-6 , October 2018, 

URL: http://www.ijtsrd.com/papers/ijtsrd18858.pdf

Direct Link: http://www.ijtsrd.com/engineering/electronics-and-communication-engineering/18858/efficient-design-of-21-mux-multiplexer-using-nanotechnology-based-on-qca/sohan-kumar-dahana

international journals in engineering, paper publication for engineering, conference issue publication

Analysis of CNT Based Hybrid Composite Plate Using Material of Mechanics Approach and Fem

Hybrid composite is a composite of organic and inorganic element which consists of nano particles to enhance the strength as compared to conventional composites. A model has been proposed to determine the elastic properties of hybrid composite. The hybrid composite consists of conventional fiber like carbon fiber and nanocomposite carbon nano tube and polymer as matrix. The first step here is to determine the properties of nanocomposite which is done by using Mori - Tanaka method with rule of mixture.

The CNTs are considered as cylindrical inclusions in polymer matrix in Mori-Tanaka method. Assuming perfect bonding between carbon fibers and nano composite matrix, the effective properties of the hybrid composite has been evaluated using mechanics of materials approach. A vibration analysis of simply supported shell element of A 8 layered laminate with stacking sequence 0 -45 45 90 S has been used 8 noded shell element has been used for the finite element analysis having 5 degrees of freedom each node u , v, w, x, y .

A finite element mesh, the shell coordinates which are in Cartesian form are converted into parametric form using two parameters a1, a2 These parameters are again mapped into isoparametric form , . For vibration analysis of simply supported shell element. The dynamic equations of shell are derived using Hamilton's principle.

As the damping characters of the dynamic system are not available, for further investigation damping ratio of first mode and last active mode are assumed. Using Rayleigh damping the damping ratios of intermediate modes can be calculated. The time decay of the system from maximum amplitude to 5 of the maximum amplitude has been used as a parameter to study various shell structures by varying the volume fraction of CNTs in nanocomposite and by varying carbon fiber volume fraction.

By Yogendra Singh Thakre | Prof. Amit Kaimkuriya "Analysis of CNT Based Hybrid Composite Plate Using Material of Mechanics Approach and Fem"

Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-2 | Issue-6 , October 2018,

URL: http://www.ijtsrd.com/papers/ijtsrd18857.pdf

Direct Link: http://www.ijtsrd.com/engineering/mechanical-engineering/18857/analysis-of-cnt-based-hybrid-composite-plate-using-material-of-mechanics-approach-and-fem/yogendra-singh-thakre

high impact factor, ugc approved journals for engineering, special issue publication