ISSN: 2456-2734

                   Volume 2, issue 2

Welcome to IJPERA! International Journal of Precious Engineering Research and Applications

Current Issue (Volume 02 - Issue 02) (May 2017)


Title:
Statistics of plug-in electric cars sales in the world from 2011 to 2016 and overview of the evolution of their performances
Authors:
Tsiriry Ranarison || Minoson Rakotomalala || JulesW. Rajoharison
Source:
International Journal of Precious Engineering Research and Applications, pp 01-08, Vol 02 - No. 02, 2017
Abstract:
Between January and December of 2016, 774,384 electric cars have been sold in the world, representing a growth of 41.26% compared to 2015. Thus, by the end of the last year, more than 2 million plug-in electric cars have been deployed in the world. With 61,027 units sold since its introduction in the market in late 2010, the Nissan Leaf is the world best-selling electric vehicles. Likewise, with the diminution of the price of Lithium-ion batteries and the improvement of its performance, the global number of plug-in electric cars will reach 41 million by 2040. Besides, since the first sale of the first Lithium-ion battery in 1991........
Keywords:
Driving range, electric vehicles (EVs) sales, energy density, growth, Lithium-ion battery, plug-in electric cars.
Download Full Article

Title:
A Study For Quality of Fine Aggregates for Civil Engineering Construction In Sokoto State (North – Western Nigeria)
Authors:
Adamu Yunusa, Tunde Abioye
Source:
International Journal of Precious Engineering Research and Applications, pp 05-10, Vol 02 - No. 02, 2017
Abstract:
Quality of aggregate needs to be checked, from time to time, due to high percentage of the material (about 70 %) that is involved in civil engineering constructions. Hence there was need to check and compare their properties with the standard with a view to preventing problems that might emanate due to incompliance with the standard. Aggregate most of which pass through 5.00 mm BS sieve is known as fine aggregate. Fine aggregate shall consists of natural sand, crushed stone sand, crushed gravel sand stone dust or arable dust, fly ash and broken brick (burnt clay). Samples were collected from four different locations within the study area; i.e. Gwadabawa, Rima, Wamakko and Wurno...............
Keywords:
Aggregates, particle density, moisture content, bulk density, particle size distribution
Download Full Article

Title:
Hierarchical Steady State Control of System wide Distributed Multi-FACTS Devices for Operational Enhancement Objectives
Authors:
I.A Araga, I.I Alabi, A.O Anibasa
Source:
International Journal of Precious Engineering Research and Applications, pp 11-18, Vol 02 - No. 02, 2017
Abstract:
Developed power systems in the world are well meshed with local, inter-regional and international connection making the increasing complex to operate. With advancement in power electronics, the control of these systems are faster with the aid of Flexible AC Transmission system devices (FACTs) introduced as control element in the system. As more of these devices are installed optimally in the transmission line at various locations, it is unarguable that it has the capabilities to control powerflows in major transmission line power corridors as well as improve voltage profiles of some critical buses within their respective operational domains of dominant influence. In addition, there tends to be a mutual conflict within the system. These unhealthy interactions within the system where these devices tend to operate beyond their operational domain. This paper is meant to x-ray and resolve these advance conflict as they occur in the system.
Keywords:
................
Download Full Article