scholarly journals Optimization of Train Energy Cooperation Using Scheduled Service Time Reserve

Energies ◽  
2021 ◽  
Vol 15 (1) ◽  
pp. 119
Author(s):  
Michał Urbaniak ◽  
Ewa Kardas-Cinal
Keyword(s):  
Traffic Management ◽  
Electrical Energy ◽  
Innovative Approach ◽  
Rail Transportation ◽  
Railway Stations ◽  
Energy Cooperation ◽  
Current State ◽  
Braking Process ◽  
Recuperative Braking ◽  
Electric Traction

The main aim of the paper was to develop an innovative approach to the preliminary estimation possibility of train energy cooperation based on data from timetables, without traction calculations. The article points out the need to strive for sustainable and environmentally friendly transport. It was pointed out that rail transport using electric traction is one of the more ecological branches of transport. It also offers a number of possibilities for improving energy efficiency and reducing energy consumption, one of which is the recovery and reuse of energy lost in the electrodynamic braking process. The main ways in which such energy can be used are listed, but the focus is mainly on the aspect of the so-called “energy cooperation” of trains. Then, the current state of the research and knowledge on the narrowed scope of rail traffic management and recuperative braking in rail transportation is presented; an innovative approach to the indirect optimization of the amount of recuperated electrical energy immediately usable by another vehicle by maximizing the duration of energy co-optimization is proposed; and the authors’ function is proposed to enable optimization, taking into account various parameters. The optimization was performed with the use of a proprietary, multi-criteria objective function and the Solver optimization module. Finally, the results obtained using the proposed approach are presented and illustrated with the example of train timetables used by some of the largest railway stations in Poland.

scholarly journals Evaluation of Safety Degree at Railway Crossings in Order to Achieve Sustainable Traffic Management: A Novel Integrated Fuzzy MCDM Model

2021 ◽  
Vol 13 (2) ◽  
pp. 832
Author(s):  
Aleksandar Blagojević ◽  
Sandra Kasalica ◽  
Željko Stević ◽  
Goran Tričković ◽  
Vesna Pavelkić
Keyword(s):  
Traffic Control ◽  
Traffic Management ◽  
Assessment Model ◽  
Level Crossings ◽  
Fuzzy Matrix ◽  
Sustainable Performance ◽  
Current State ◽  
Criterion Weight ◽  
Railway System ◽  
Criteria Importance

Sustainable traffic system management under conditions of uncertainty and inappropriate road infrastructure is a responsible and complex task. In Bosnia and Herzegovina (BiH), there is a large number of level crossings which represent potentially risky places in traffic. The current state of level crossings in BiH is a problem of the greatest interest for the railway and a generator of accidents. Accordingly, it is necessary to identify the places that are currently a priority for the adoption of measures and traffic control in order to achieve sustainability of the whole system. In this paper, the Šamac–Doboj railway section and passive level crossings have been considered. Fifteen different criteria were formed and divided into three main groups: safety criteria, road exploitation characteristics, and railway exploitation characteristics. A novel integrated fuzzy FUCOM (full consistency method)—fuzzy PIPRECIA (pivot pairwise relative criteria importance assessment) model was formed to determine the significance of the criteria. When calculating the weight values of the main criteria, the fuzzy Heronian mean operator was used for their averaging. The evaluation of level crossings was performed using fuzzy MARCOS (measurement of alternatives and ranking according to compromise solution). An original integrated fuzzy FUCOM–Fuzzy PIPRECIA–Fuzzy MARCOS model was created as the main contribution of the paper. The results showed that level crossings 42 + 690 (LC4) and LC8 (82 + 291) are the safest considering all 15 criteria. The verification of the results was performed through four phases of sensitivity analysis: resizing of an initial fuzzy matrix, comparative analysis with other fuzzy approaches, simulations of criterion weight values, and calculation of Spearman’s correlation coefficient (SCC). Finally, measures for the sustainable performance of the railway system were proposed.

scholarly journals OVERVIEW OF DISTANCE ENERGY TRANSMISSION MEANS FOR POWERING AGRICULTURAL MACHINERY TAKING INTO ACCOUNT FACTORS AFFECTING HUMAN SAFETY

2021 ◽  
Vol 4 (164) ◽  
pp. 10-13
Author(s):  
V. Halil ◽  
S. Zakurdai ◽  
V. Scurikhin ◽  
O. Donets ◽  
D. Zubenko
Keyword(s):  
Combustion Engine ◽  
Renewable Energy Sources ◽  
Electrical Energy ◽  
Electric Transport ◽  
Electric Motors ◽  
Agricultural Machinery ◽  
Transport Equipment ◽  
Agricultural Equipment ◽  
Electric Traction ◽  
The Impact

This article discusses the issues of autonomous operation of electrical agricultural equipment based on the transmission of electricity over a distance. The main point of this article is that tractors that work in the field are driven by electric motors, with the need to use expensive batteries. The issues of the impact and safety of this technology on the environment and humans are considered. The main problem of the creation, maintenance and operation of transport equipment, including agricultural equipment, is the high cost of maintenance and fuel, which are constantly increasing. In addition, the environmental problem, which has become so acute in recent years, global warming, the fuel crisis and the need to transfer all transport equipment to electric traction, make us look for new ways to solve the problem of environmental pollution and save resources, especially non-renewable energy sources. The use of electrical energy for traction of agricultural machinery that work in the fields or in other industries has been used for a long time, and in the early stages of the development of transport, it was electric transport that occupied the main part, before the invention of the internal combustion engine. Including at the Kharkov Tractor Plant there were developments (and still are), a prototype of the use of electric motors as the main unit for movement. Based on the above, it is obvious that electric traction for transport is obviously environmentally friendly and safe, although there are a number of limitations in this matter as well, but the unresolved problems of the limited use of the storage battery force us to look for new sources of energy. This article proposes to consider the possibility of using electric traction for agricultural machinery with the supply of operating tractors in the fields with the help of a directed electromagnetic wave with its transformation into electrical energy, which will be supplied to the electric motor.

2019 Nominations for ASME Historic Mechanical Engineering Landmark Status: Rail Transportation Category

2020 ◽  
Author(s):  
Michael E. Iden
Keyword(s):  
Diesel Engine ◽  
Diesel Engines ◽  
High Speed ◽  
Mechanical Engineering ◽  
Torque Converter ◽  
Rail Transportation ◽  
Heavy Duty ◽  
Welded Steel ◽  
Electric Traction ◽  
Stroke Cycle

Abstract The ASME Rail Transportation Division submitted five nominations in 2019 for ASME Historic Mechanical Engineering Landmark status. The nominations are for examples of significant railway technologies involving mechanical engineering and built between 1920 and 1964: 1. SBB 14253 “Crocodile” locomotive (1920): pioneering electric heavy-duty Swiss mountain locomotive, with pioneering features found in many subsequent electric locomotives. 2. Winton 8-201 prototype diesel engine (1933): only surviving of two experimental engines which preceded all GM-Electro-Motive 2-stroke cycle diesel engines for locomotives and other applications; first locomotive diesel engine with lightweight welded steel crankcase and unitized fuel injectors. 3. B&O 50 locomotive (1935): sole surviving example of the first (5) standalone, modular, non-articulated high-speed diesel locomotives from Electro-Motive, functional prototypes for the later “E” passenger and “FT” freight locomotives. 4. Cooper-Bessemer prototype diesel engine (1953): sole surviving example of (4) predecessor 4-stroke cycle diesel engines built for GE Transportation for field test locomotives prior to GE becoming a domestic locomotive manufacturer. 5. SP 9010 locomotive (1964): sole surviving example of (21) experimental German-built diesel locomotives for heavy-duty US mountain railroad operation using a hydromechanical torque converter transmission instead of electric traction motors; proved concept of higher-power and improved wheel-to-rail adhesion. All five nominations were submitted to the ASME national History & Heritage Committee for review. This paper provides a description of each nomination and the status of each proposed railroad Historic Mechanical Engineering Landmark.

scholarly journals A volcanic hazard demonstration exercise to assess and mitigate the impacts of volcanic ash clouds on civil and military aviation

2019 ◽  
Author(s):  
Marcus Hirtl ◽  
Delia Arnold ◽  
Rocio Baro ◽  
Hugues Brenot ◽  
Mauro Coltelli ◽  
...  
Keyword(s):  
Traffic Management ◽  
Volcanic Eruptions ◽  
Route Optimization ◽  
Volcanic Plume ◽  
Case Scenario ◽  
Ensemble Techniques ◽  
Current State ◽  
Aviation Hazards ◽  
Volcanic Cloud ◽  
Flight Cancellations

Abstract. Volcanic eruptions comprise one of the most important airborne hazards for aviation. Although significant events are rare, they have a very high impact. The current state of tools and abilities to mitigate aviation hazards associated with an assumed volcanic cloud was tested within an international demonstration exercise. Experts in the field assembled at the Schwarzenberg barracks in Salzburg, Austria, in order to simulate the sequence of procedures for the volcanic case scenario of an artificial eruption of Etna volcano in Italy. The scope of the exercise ranged from the detection of the assumed event to the issuance of early warnings. Volcanic emission concentration charts were generated applying modern ensemble techniques. The exercise products provided an important basis for decision making for aviation traffic management during a volcanic eruption crisis. By integrating the available wealth of data, observations and modelling results directly into a widely used flight planning software, it was demonstrated that route optimization measures could be implemented effectively. With timely and rather precise warnings available, the new tools and processes tested during the exercise demonstrated vividly that a vast majority of flights could be conducted despite a volcanic plume widely dispersed within a high-traffic airspace over Europe. The resulting number of flight cancellations was minimal.

scholarly journals Establishing a metrological infrastructure and traceability of electrical power and energy in the R. Macedonia

ACTA IMEKO ◽  
2014 ◽  
Vol 2 (2) ◽  
pp. 86 ◽  
Author(s):  
Ljupco Arsov ◽  
Marija Cundeva-Blajer
Keyword(s):  
Fair Trade ◽  
Electrical Power ◽  
Electrical Energy ◽  
International Standards ◽  
Current State ◽  
Metrological Infrastructure ◽  
Calibration And Verification ◽  
Power And Energy ◽  
Metrology Infrastructure ◽  
International Comparability

In the paper the current state and the establishment of metrology infrastructure and traceability of the measurements of electrical power and energy, i.e. the creation of conditions for unity of power and energy measurements, international comparability of the results and measurements which insure fair trade and consumers' protection are elaborated. Beside the legal, also other aspects are discussed, like the needs for calibration and verification in the field of electrical power and energy, participants in the chain of measurements and trade with electrical energy, the organization, the infrastructure, the methods and the systems of calibration and verification. An organization and certain documents which will contribute to the establishment of a system in accordance with the international standards and practice, as well as traceability and fair trade, are proposed.

scholarly journals ANALISA PEMBANGUNAN SALURAN TRANSMISI 275 kV ANTARA GI KILIRANJAO DAN GI PAYAKUMBUH

2018 ◽  
Vol 9 (1) ◽  
pp. 93-99
Author(s):  
Redaksi Tim Jurnal
Keyword(s):  
Transmission Line ◽  
Feasibility Study ◽  
Human Life ◽  
Electrical Energy ◽  
Accurate Information ◽  
Current State ◽  
One Step ◽  
State Of Power ◽  
Supply Capacity ◽  
Environmental Feasibility

Electrical energy is very important role in human life. rapid population growth resulting in increased electricity needs in Indonesia. Based on the current state of power supply capacity of the next few years will not be able to meet the electricity demand in a number of regions in Indonesia. Therefore PLN as a provider of electrical energy as possible to meet those needs. One step is made by planning to build Transmission Line T / L 275 kV substation Kiliranjao - GI Payakumbuh. With the construction of the substation, it is also necessary distribution of electrical energy that is supplying power to a great everincreasing burden on the city through the transmission line (SUTET) 275 kV. In this study will discuss the environmental feasibility study of development of the transmission line T / L 275 kV Kiliranjao - Payakumbuh and substation. Environmental feasibility study is to obtain accurate information in anticipation of environmental problems that arise and will occur as a result of the construction of the transmission T / L 275 kV, which is useful for various parties, such as PT. PLN as the initiator, the Local Government and Communities.

scholarly journals Emergency Vehicle Priority Based System

2021 ◽  
pp. 377-382
Author(s):  
Sarfraz Ahmad ◽  
K. C. Maurya
Keyword(s):  
Traffic Congestion ◽  
Traffic Management ◽  
Green Light ◽  
Emergency Vehicle ◽  
Current Case ◽  
Traffic Lights ◽  
Current State ◽  
Emergency Vehicles ◽  
Vehicle Information ◽  
Police Cars

Every country's vehicular traffic is increasing, growing, and there is terrible traffic congestion at intersections. In the current case, most traffic lights have a fixed light sequence, so green light sequence is to determine with-out taking priority vehicles into account. As a result, priority crews such as police cars, ambulances, fire engines are still unable to perform, get stuck in traffic and come in late, which can result in the loss of valuable property and life, which does happen on occasion. The green light sequence is evaluated given the current state of traffic, without taking into account the existence of emergency vehicles. Our aim to this paper is to present a mechanism for scheduling emergency vehicles. It is provided to important such as access control protocol to convey emergency vehicle information to the Traffic Management Center (TMC) with time delay and to all alerts while using GPS techniques for acquiring emergency vehicle information. Only then is the emergency vehicle quickly dispatched, and the destination is reached on time. It would be helpful in the future for the prominence of casual vehicles.

scholarly journals High-speed rail system in China: best practice, state of affairs and prospects for development

2020 ◽  
Vol 164 ◽  
pp. 07013
Author(s):  
Dmitry Kuzmin ◽  
Vera Baginova ◽  
Andrey Baginov
Keyword(s):  
High Speed ◽  
Best Practice ◽  
Rail Transportation ◽  
Social Significance ◽  
High Speed Rail ◽  
Republic Of China ◽  
Current State ◽  
State Of Affairs ◽  
Infrastructural Support ◽  
Further Development

The article analyzes the experience of organizing high-speed rail services in China, the current state and development prospects. An analysis of open sources and publications on this topic is carried out. The characteristics of the infrastructural support of the most significant transport facilities of high-speed rail transportation are given and the question of further development of high-speed rail service in People’s Republic of China is considered. An assessment is made of the economic and social significance of China’s high-speed railway lines.

Energy cooperation between Mongolia and Russia: past, present, and future

2021 ◽  
pp. 40-49
Author(s):  
Sereeter Batmunkh ◽  
Saneev Boris ◽  
Sodov Batkhuyag ◽  
Punsalmaa Ochirbat ◽  
Makhbal Tumenjargal ◽  
...  
Keyword(s):  
Energy Sector ◽  
Asian Countries ◽  
Energy Cooperation ◽  
Current State ◽  
Northeast Asian ◽  
Current Energy

The paper showcases the experience of energy cooperation between Mongolia and Russia and it gives a brief description of the current state and outlines strategic directions of energy cooperation between the two countries from the perspective of current energy cooperation priorities in the Northeast Asian countries, and active mutually beneficial participation of Mongolia and Russia in this process. Prerequisites for cooperation and conditions for successful intercountry projects in individual industries of the energy sector are considered in the study.

scholarly journals Traffic Management in Residential Areas: Case Study the South District of Luxor City, Egypt

2019 ◽  
Vol 3 (2) ◽  
pp. 220
Author(s):  
Riam Mohamed Elsagher Mahmod Elmorshedy
Keyword(s):  
Land Use ◽  
Traffic Management ◽  
Residential Areas ◽  
The South ◽  
Linear Network ◽  
Current State ◽  
Wide Range ◽  
Local Residents ◽  
Negative Impacts

Traffic management includes the implementation of a wide range of measures, devices and techniques based on a combination of parallel strategies, to improve safety and livability on streets by reducing the effect of vehicular traffic.The local residential streets have the intended traffic function of providing access to limited numbers of local residents. Traffic management for residential streets helps to preserve and enhance streets by minimizing the negative impacts of traffic and seeks to improve safety for pedestrians, cyclists, motorists and all other road users.The problem is that the planning of Egypt’s existing cities depended on grid and linear network streets withoutseparation land-use. Where the residential areas are always mixed land-use, (residential and commercial uses). This situation reflects on congestion residential areas; noisy, Traffic confusion, . . . . . . etc. So, the author aimed to create the traffic methodological for existing residential areas.This paper is applied in the south district of Luxor city, where the city’s authorities took some procedures formanaging traffic to no avail.This practical study includes: designing the traffic methodological framework, applying the framework at casestudy, and comparing the designed model with the current state of case study. The software programs used are SPSS and excel.The results show that the current state ignores some principles in comparison to the designed model. The important recommendations of research are: the designed model should be applied at case study, and the framework of traffic methodological for existing residential areas is applicable in different areas.

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