IJOART Volume 5, Issue 1, January 2016 Edition

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Monitoring and Controlling the Power Factor Using Synchronous Condenser[]

Due to the lagging power factor of the inductive load and for the inextinguishable condition of energy sources,the part of energy are being wasted by us but we can’t realize that.So,it is a great concern for the power engineers to pay off this loss by the improvement of power factor in now a days.But with the growth of technological whirl, many methods of power factor correction have been proposed already for automation which is desired for every system.Most of the automatic system uses programmable devices.In this paper,we are going to describe the design and improvement of power factor correction using AVR microcontroller.For the low maintenance cost and long life,synchronous condenser is used for correction method instead of capacitor bank.Harmonics are put down by synchronous condenser which can’t be possible by using capacitor bank.For controlling the DC excitation of synchronous condenser as well as to improve the power factor, the power factor and generation of required control signal from microcontroller are needed to measure and monitor continuosly which is also involved in this method.

Comparison of superconductivity in Sr2RuO4 and La1.85Sr0.15CuO4 by simulations based on the BCS Theory[]

Superconductivity in conventional superconductors can be described by using the BCS theory, which relies on a pairing of electrons via phonon energies. In this work, we simulate the mechanisms of the BCS theory in two unconventional superconductors, La1.85Sr0.15CuO4 and Sr2RuO4, to find out whether their pairing mechanism works in a similar fashion to the BCS theory. Our results show that the differences in Fermi velocities, densities of states and spring constants of the unit cells could be a reason why both superconductors have two different critical temperatures regardless of their same crystal structure.

Experimental Investigation of Performance of Acetylene Fuel Based Diesel Engine[]

People have been working seriously in the search for best alternative fuels to safeguard the environment ever since the transportation and industrial fields started growing widely. Among such alternatives acetylene has proved to be a better fuel for internal combustion engines due to its low cost, simplicity in manufacturing and excellent combustion characteris-tics. Moreover it has less carbon content compared to other fuels, which plays a central role in environmental degradation. However the fuel must be safe and environmentally friendly and also readily usable in existing engines without any signifi-cant design modifications. Acetylene is produced in parallel to the engine operation taking proper care to avoid back firing. We propose in the present study that acetylene be the safe and appropriate fuel for a compression ignition engine. Diesel engine is selected with a subsidiary mixing box for a homogeneous mixture of air and acetylene The experiments are con-ducted with fixed acetylene flow rates from 0.1Lit/min to 5Lit/min with an increase of 0.5Lit/min in every step. The engine is tested at various loads, keeping track of combustion performance to find out the optimum fuel flow rates and also to have reduced emissions. The results show that the performance of the Acetylene enriched engine is nearer to the pure diesel en-gine with reduced emissions. It is concluded that acetylene could be the better alternative fuel without compromising brake thermal efficiency and safe operation with a moderate increment of smoke and NOx

Financial literacy: A prelude to livelihood security[]

Achieving sustainable long term economic growth is a policy concern. In this context, financial inclusion has emerged as an important topic all across the globe. Being an inseparable part of this, financial literacy refers to a person’s ability to understand and use financial concepts. In the developing economy like India the role of financial literacy is very crucial where; indebtedness is a major problem that results in farmers’ suicide. So, whether increasing the financial literacy is helping the rural people in general and farmers in particular to move towards owing a secured livelihood is a policy question. This paper answers how livelihood security is the resultant of financial literacy in two propositions.

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