Naval Energy Management System

2020 ◽  
Vol 26 (3) ◽  
pp. 20-25
Author(s):  
Laurențiu Bogdan Asalomia ◽  
Gheorghe Samoilescu

AbstractThe paper analyses the role of control and monitoring of electro-energetic equipment in order to reduce operational costs, increase profits and reduce carbon emissions. The role of SCADA and EcoStruxure Power systems is presented and analysed taking into account the energy consumption and its savings. The paper presents practical and modern solutions to reduce energy consumption by up to 53%, mass by up to 47% and increase the life of the equipment by adjusting the electrical parameters. The Integrated Navigation System has allowed an automatic control and an efficient management. For ships, the implementation of an energy efficiency design index and new technologies was required for the GREEN SHIP project.

2019 ◽  
Vol 91 ◽  
pp. 08031 ◽  
Author(s):  
Inga Skvortsova ◽  
Roman Latyshev ◽  
Kirill Grabovyy

The purpose of this article is to analyze the current level of innovation activity in the Russian Federation, to determine the role of international clusters in the innovative development of the energy efficient country’s economy, while focusing on the formation of the innovative potential of international cooperation of cluster members. The urgency of the creation of cluster associations - international consortia. Examples of the joint implementation of innovative projects in the field of energy-efficient management and the application of new technologies in the field of sustainable energy for megacities are given.


Author(s):  
Pamela E. Alexander

Rail transportation is playing a very important role in the effort to keep the world’s expanding major cities safe and mobile. Travel by rail can move people and cargo with higher levels of energy efficiency, greater safety, lower cost and greater reliability than any other mode of transportation. On average, trips by train can generate between one third and one fifth of the carbon dioxide (CO2) produced by the equivalent automobile or airplane travel. Environmental awareness plus reduced operating costs are primary considerations in decision making for new transit programs around the globe. Energy consumption is a major part of rail operation costs and has been at the focus of rail systems sustainability initiatives. The majority of energy consumed by metropolitan and urban rail systems is used to move the trains. In recent years, energy saving technologies for rail vehicle power systems have been implemented on many rail systems worldwide. Improving railway energy efficiency results in not only a reduction in energy consumption and cost, but also a reduction in pollution due to power generation. In an effort to promote environmental quality and energy efficiency, energy usage in rail systems is analyzed to identify new technologies, developments, and procedures for increased efficiency. This paper provides an overview of the various strategies and solutions used to increase energy efficiency in rail systems and highlights the key technologies needed for their implementation.


Author(s):  
Tatyana Averina ◽  
Nataliya Levkina

The main economic factors influencing the efficiency of energy saving projects are energy prices and the cost of new technologies. The article makes an attempt to use the model of built-in stabilizers to explain the influence of these factors on the volume of energy consumption and the role of the state mechanism for stimulating innovation in this area.


Author(s):  
Janis Vitins

Typically, the costs for traction energy add up to 20% or more of the total train operating costs with electric locomotives in Europe. Therefore, there is a high incentive for the railroads to reduce energy consumption and thus to improve operating margins. Additionally, rising costs for energy as well as environmental aspects will increase the need to reduce energy consumption in the future. Firstly, on electric locomotives the largest energy savings are obtained from power regeneration at braking. In this mode the locomotive acts as a moving power generator feeding energy back into the catenary network. Savings are typically in the range of 10 to 30%. Secondly, the driving style has a high impact on energy costs. Energy consumption can be lowered by more than 20% through an energy conscious driving style compared to aggressive driving. Thirdly, the energy efficiency of the whole traction chain is important. Electric locomotives designed for AC catenaries have an overall energy efficiency of up to 86%. Locomotives designed for 1.5 or 3 kV DC catenaries can have an overall energy efficiency of up to 90%. New technologies can potentially help to increase the power efficiencies even further. Apart from using efficient diesel engines, the fuel costs of diesel-electric locomotives can be reduced much in the same way as with electric locomotives. Regeneration of braking power on diesel-electric locomotives is, however, limited to feeding the auxiliaries and head end power (HEP) to passenger coaches. In Europe the energy costs per hauled ton-km are typically much lower with electric than with diesel traction. This gives dual-powered locomotives the advantage of overall lower energy costs for operation on both electrified and non-electrified networks. First estimates show that the total energy costs (diesel and electric operation) can be reduced by more than 35% in a mixed network with 80% electrification with a dual-powered locomotive compared to a diesel locomotive running the same train on the same route. In addition, the dual-powered locomotive provides major cost savings and increased quality of service with a one seat ride.


2020 ◽  
Vol 64 (2) ◽  
pp. 251-261
Author(s):  
Jessica E. Fellmeth ◽  
Kim S. McKim

Abstract While many of the proteins involved in the mitotic centromere and kinetochore are conserved in meiosis, they often gain a novel function due to the unique needs of homolog segregation during meiosis I (MI). CENP-C is a critical component of the centromere for kinetochore assembly in mitosis. Recent work, however, has highlighted the unique features of meiotic CENP-C. Centromere establishment and stability require CENP-C loading at the centromere for CENP-A function. Pre-meiotic loading of proteins necessary for homolog recombination as well as cohesion also rely on CENP-C, as do the main scaffolding components of the kinetochore. Much of this work relies on new technologies that enable in vivo analysis of meiosis like never before. Here, we strive to highlight the unique role of this highly conserved centromere protein that loads on to centromeres prior to M-phase onset, but continues to perform critical functions through chromosome segregation. CENP-C is not merely a structural link between the centromere and the kinetochore, but also a functional one joining the processes of early prophase homolog synapsis to late metaphase kinetochore assembly and signaling.


Author(s):  
Lena Wånggren

This book examines late nineteenth-century feminism in relation to technologies of the time, marking the crucial role of technology in social and literary struggles for equality. The New Woman, the fin de siècle cultural archetype of early feminism, became the focal figure for key nineteenth-century debates concerning issues such as gender and sexuality, evolution and degeneration, science, empire and modernity. While the New Woman is located in the debates concerning the ‘crisis in gender’ or ‘sexual anarchy’ of the time, the period also saw an upsurge of new technologies of communication, transport and medicine. This book explores the interlinking of gender and technology in writings by overlooked authors such as Grant Allen, Tom Gallon, H. G. Wells, Margaret Todd and Mathias McDonnell Bodkin. As the book demonstrates, literature of the time is inevitably caught up in a technological modernity: technologies such as the typewriter, the bicycle, and medical technologies, through literary texts come to work as freedom machines, as harbingers of female emancipation.


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