New Technology on Next Generation Electric Energy System

2018 ◽  
Vol 138 (2) ◽  
pp. 82-85
Author(s):  
Akinori KATO ◽  
Hisao TAOKA ◽  
Takashi TAKEDA
2014 ◽  
Vol 1 (1) ◽  
pp. 379-384
Author(s):  
Daniela Cristina Momete ◽  
Tudor Prisecaru

AbstractA new industrial revolution is on the verge in the energy domain considering the knowledge and skills acquired through the development of new energy technologies. Shale gas processing, unconventional oil exploitation, new exploring/drilling methods, mature renewable energy or in progress, all generated a wealth of knowledge in new technology. Therefore, this paper aims to analyse the positive and negative aspects of energy solutions, and to reveal the way to a world where a valid sustainable development, based on safe and rational premises, is actually considered. The paper also introduces suggestions for the energy system, which has a crucial importance in coping with the resource management of the future, where the economic, social, and environmental/climate needs of the post-crisis world should be suitably considered.


2014 ◽  
Vol 119 ◽  
pp. 417-430 ◽  
Author(s):  
R. Domínguez ◽  
A.J. Conejo ◽  
M. Carrión

Author(s):  
E. B. Agapitov ◽  
M. A. Lemeshko ◽  
M. S. Sokolova

Prices hike for consumable materials and energy carriers, increase of requirements to steel quality stipulate the items of intensification of ladle treatment processes and decrease of their energy- and material capacity. Analysis of energy losses in ladlefurnace accomplished, as well as basic factors effecting the energy costs during treatment analyzed. A methodology elaborated for making thermal balance of ladle-furnace: it was proposed to present the melt treatment process in ladle-furnace as a series of separate operations, each having specific features of the process (heating, desulphurization, alloying) and their combination. Based on analysis of 20 thousand heats passports at ladle-furnace of MMK BOF shop, a mathematical model of energy supply system of ladle-furnace was elaborated. Based on the analysis made, a strategy of heating automation was proposed. In particular, electric losses were emphasized, t. e. total losses of electric arc energy, in which provisionally losses at arc open part radiation were included. Control of those flows creates conditions for heating efficiency increase. Conclusions were made that decrease of electric losses is observed at prolonged (about 8−12 min) heating periods and sufficient amount of slag, as well as at injection of additives after heating. Such a mode provides decrease of thermal losses by 4−5%. A new technology of steel melt treatment in ladle-furnace was proposed, characterized by decreased consumption of electric energy.


How the decade-long unfolding of 3G is being morphed into the convergence of communications and computing is described. With this new technology direction, actors in both the mobile and computing industries have started fighting to define the next generation mobile standard.


1998 ◽  
Vol 179 ◽  
pp. 431-432 ◽  
Author(s):  
B. McLean ◽  
G. Hawkins ◽  
A. Spagna ◽  
M. Lattanzi ◽  
B. Lasker ◽  
...  

Although the HST GSC–I (Paper-I: Lasker et al. 1990, Paper-II: Russell et al. 1990, Paper-III: Jenkner et al. 1990) has been used with great success operationally, it was always known that it was possible to improve the scientific and operational usefulness by an increase in scope to include multi-color and multi-epoch data. Once the GSC-II concept was established, it was evident that, even beyond the original motivations in HST operations, it would address a number of other astronomical needs such as increasing demands for fainter catalogues to support remote or queue scheduling capabilities and adaptive optics on the next generation of large-aperture, new-technology telescopes. In addition, the all sky nature of the GSC–II makes it a natural data source for research in galactic structure.


2012 ◽  
Vol 134 (01) ◽  
pp. 36-39
Author(s):  
John Laurence Busch

This article describes the design of steamboats during the first generation. The first generation of steamboat mechanics and engineers stuck to what they believed they could manage: low-steam engines with pressure gauges properly installed and monitored; single cylinders and moving parts that were kept continuously lubricated with tallow; boilers that were kept as air-tight as possible; and on the insides of those boilers, a periodic scraping and cleaning of any salt build-up, which became a bigger and bigger problem as steamboats ventured into saltier waters along the East Coast. As this wonderful new technology continued to expand into new territories, its true believers concluded that more powerful engines were needed. In the early 1820s, there was increased experimentation with two-cylinder engines and high-pressure boilers, both of which served to give steam-powered vessels the strength and stamina they needed to push a larger hull over greater distances. With their increasing adoption through the 1820s, multi-cylinder high-pressure steam engines marked the end of the first family of steam vessels, and the beginning of the next generation.


2018 ◽  
Vol 58 ◽  
pp. 01004
Author(s):  
Magomed Gadzhiev ◽  
Misrikhan Misrikhanov ◽  
Vladimir Ryabchenko ◽  
Nikita Vasilenko

A randomized algorithm for computing the invariant zeros of the electric energy system as a dynamical system with many inputs and many outputs (MIMO system), specified in the descriptor form, is proposed. Definitions of invariant zeros are carried out by randomizing the original MIMO system and it reduces to a generalized eigenvalue problem for a numerical matrix. The application of the algorithm is illustrated by the example of calculating the invariant zeros of the linear model of the United Power System.


Sign in / Sign up

Export Citation Format

Share Document