scholarly journals A Review on Energy Efficiency in Three Transportation Sectors: Railways, Electrical Vehicles and Marine

Energies ◽  
2020 ◽  
Vol 13 (9) ◽  
pp. 2378 ◽  
Author(s):  
Morris Brenna ◽  
Vittorio Bucci ◽  
Maria Carmen Falvo ◽  
Federica Foiadelli ◽  
Alessandro Ruvio ◽  
...  
Keyword(s):  
Power Systems ◽  
Traffic Control ◽  
System Integration ◽  
Storage System ◽  
Research Area ◽  
Transportation Systems ◽  
Point Of View ◽  
Railway Transportation ◽  
Vehicle To Grid ◽  
Electrical Vehicles

The present paper is a review on efficiency issues related to three important sectors of the transportation systems: railways, electrical vehicles, and marine. For the three sectors, the authors, in reference of their knowledge and research area, show the results of a wide literature analysis, in order to highlight which are the measures, in terms of technological solutions and management techniques, which are recently investigated and implemented, for improving the three transportation systems, from the point of view of efficiency. In particular, for the railway transportation sector, a wide analysis is presented, detecting which are the main measures adopted for improving the efficiency, related to the power systems for supplying trains and to the train traffic control, with a focus on the storage system integration. For electric road vehicles the analysis is focused on the plug-in electrical vehicles and on the infrastructure for their recharge, with an emphasis on how these vehicles can support the grid, e.g., through Vehicle to Grid (V2G) applications. Finally, for the marine transport service the review is related to the propulsion systems and on how the different solutions can meet the objective of efficiency.

scholarly journals Urban Transformation in the Context of Rail Transport Development: The Case of a Newly Built Railway Line in Gdańsk (Poland)

2018 ◽  
Vol 2018 ◽  
pp. 1-15 ◽  
Author(s):  
Marcin Połom ◽  
Maciej Tarkowski ◽  
Krystian Puzdrakiewicz
Keyword(s):  
Urban Transportation ◽  
Research Area ◽  
Transportation Systems ◽  
Transport Systems ◽  
Opinion Poll ◽  
Railway Transportation ◽  
Housing Projects ◽  
Railway Line ◽  
Gis Tools ◽  
Mutual Relations

Development of railway transport systems is perceived as one of the most effective ways of shaping sustainable urban transportation. However, railway transportation systems can only compete with individual means of transportation when having properly developed infrastructure, especially in terms of the train stops accessibility. The main objective of this article is to discuss mutual relations between operation of a newly built railway line and spatial changes taking place in its closest vicinity which determine the accessibility to it. The research methods included the GIS tools, direct measurements of passenger exchange, and public opinion poll among the passengers taking the new line. The research area was the city of Gdańsk, one of the largest cities in Poland, where transportation problems are cumulating as a result of the urban sprawl. The new railway was opened in order to mitigate these problems. The research results have proved this strategy was only partially successful as the course of the line and location of the stops do not provide a large number of potential passengers. That is why it was necessary to connect the line to the already existing urban transportation system, yet this solution has not resolved the problem completely. However, the urban development plan assumes introduction of large housing projects in the areas surrounding the existing train stops what will allow using the new line more efficiently in the future.

Asynchronous Method for Frequency Regulation by Dispersed Plug-in Electric Vehicles

2018 ◽  
Vol 19 (3) ◽  
Author(s):  
Yonghong Kuang ◽  
Canbing Li ◽  
Bin Zhou ◽  
Yijia Cao ◽  
Hanyu Yang ◽  
...  
Keyword(s):  
Power Systems ◽  
Electric Vehicles ◽  
Electric Power Systems ◽  
Frequency Regulation ◽  
Vehicle To Grid ◽  
Electrical Vehicles ◽  
Asynchronous Method ◽  
Control Centre ◽  
Electrical Vehicle ◽  
Simulation Results

Abstract:Plug-in electrical vehicles (PEVs) can participate in frequency regulation (FR) in electric power systems under the framework of vehicle-to-grid (V2G) technology. With a growing number of electrical vehicles (EVs), a greater number of distributed electrical vehicle (EV) chargers may change charge or discharge power simultaneously to participate in FR, resulting in over response. In this paper, considering the over-response and equality issues, an asynchronous method for dispersed PEVs participation in FR is proposed. PEVs participate in FR with the same set of parameters. Over-response can be avoided during the process of FR. Equality enables the dispersed PEVs to participate in FR with the same probability. The presented method empowers PEVs to actively participate in FR without a control centre or a communication network. Simulation results demonstrate the validity of the presented method in different operational scenarios.

Modified fuzzy-based greedy routing protocol for VANETs

2020 ◽  
Vol 39 (6) ◽  
pp. 8357-8364
Author(s):  
Thompson Stephan ◽  
Ananthnarayan Rajappa ◽  
K.S. Sendhil Kumar ◽  
Shivang Gupta ◽  
Achyut Shankar ◽  
...  
Keyword(s):  
Fuzzy Logic ◽  
Routing Protocol ◽  
Intelligent Transportation Systems ◽  
Vehicular Ad Hoc Networks ◽  
Ad Hoc ◽  
Research Area ◽  
Transportation Systems ◽  
Delivery Ratio ◽  
Greedy Routing ◽  
Hoc Networks

Vehicular Ad Hoc Networks (VANETs) is the most growing research area in wireless communication and has been gaining significant attention over recent years due to its role in designing intelligent transportation systems. Wireless multi-hop forwarding in VANETs is challenging since the data has to be relayed as soon as possible through the intermediate vehicles from the source to destination. This paper proposes a modified fuzzy-based greedy routing protocol (MFGR) which is an enhanced version of fuzzy logic-based greedy routing protocol (FLGR). Our proposed protocol applies fuzzy logic for the selection of the next greedy forwarder to forward the data reliably towards the destination. Five parameters, namely distance, direction, speed, position, and trust have been used to evaluate the node’s stability using fuzzy logic. The simulation results demonstrate that the proposed MFGR scheme can achieve the best performance in terms of the highest packet delivery ratio (PDR) and minimizes the average number of hops among all protocols.

INTERIOR DESIGN AND ARCHITECTURE THROUGH THE PRISM OF TIME: FROM CONFLICT TO COOPERATION

2020 ◽  
Vol 1 (1) ◽  
pp. 32-37
Author(s):  
I. Naydenova
Keyword(s):  
Interior Design ◽  
Mutual Influence ◽  
Time Frame ◽  
Research Area ◽  
Point Of View ◽  
Living Space ◽  
Self Sufficiency ◽  
Functional Zoning ◽  
Architecture And Design ◽  
Xix Century

As a research area, interior design took shape in the 20s of the last century, despite the fact that the practice of decorating living spaces dates back many hundreds of years. However, the "self-sufficiency" of design and its connection with architecture to this day is the subject of scientific discussions of urban specialists, historians, art historians, and anthropologists. The article discusses the leading artistic styles and trends that prevailed in architecture and design from the point of view of their mutual influence on each other. Time frame of the research: from the middle of XIX century to the first half of XX century. As a result of the research of foreign experience in the formation of interior design, the main stages of the movement development and its relationship with architecture in two formations were identified: activities directly dependent on architectural decisions, activities that determine the entire design process to a large extent: from the functional zoning of the premises to the features of the placement of utilities in the building. Entering the information era in art as a whole is characterized by the rejection of slogans that clearly delineate stylistic boundaries and determine the role of a designer in creating the living space. The determining factor influencing the integrity of the building’s appearance in a modern view is the harmony of the facade and the internal content, which was made possible thanks to the equal interaction of the architect and designer, starting from the first half of the 20th century.

Determinants of Co-creative Behaviour of Patients: A Case Study in Jammu

2016 ◽  
Vol 4 (1) ◽  
Author(s):  
Jyoti Sharma ◽  
Lata Raj ◽  
Anil Gupta
Keyword(s):  
Customer Value ◽  
Research Area ◽  
Point Of View ◽  
Customer Participation ◽  
Citizenship Behavior ◽  
Future Research ◽  
Creative Behavior ◽  
Customer Profiling ◽  
Customer Citizenship Behavior ◽  
Lifestyle Diseases

The purpose of this study is to measure the existence of co-creation behavior between doctors and patients. The research also studies customer participation and customer citizenship behavior as the dimensions of co-creative behavior and tries to establish the relationship between co-creative behavior and satisfaction. This study uses Yi and Gong (2013) scale for collecting data regarding co-creation behavior and its dimensions which are customer participation (CP) and customer citizenship behavior (CCB). The data was collected from 204 patients who were suffering from various chronic/lifestyle diseases and getting their treatment from private clinics in Jammu city. The study uses 7-point Likert scale in the questionnaire ranging from 1 completely disagree through 7 completely agree, with a midpoint labeled 4 neither agree nor disagree. The analysis of paper reflects that co-creation behavior is prevalent among the patients and not only participation but the citizenship behavior also affects the co-creation behavior of patients. The study is conducted from patients point of view whereas doctors perspective should also be used in future research. The research area is restricted to Jammu city only. The research provides several implications-doctors can also use this scale for market segmentation and customer profiling for maximizing customer value co-creation behavior by gaining the useful information.

scholarly journals Optimal Pricing of Vehicle-to-Grid Services Using Disaggregate Demand Models

Energies ◽  
2021 ◽  
Vol 14 (4) ◽  
pp. 1090
Author(s):  
Charilaos Latinopoulos ◽  
Aruna Sivakumar ◽  
John W. Polak
Keyword(s):  
Power Systems ◽  
Electric Vehicles ◽  
Power Grids ◽  
Local Distribution ◽  
Technical Problems ◽  
Vehicle To Grid ◽  
Distribution Transformers ◽  
Demand Models ◽  
Multiple Vehicles ◽  
Infrastructure Investments

The recent revolution in electric mobility is both crucial and promising in the coordinated effort to reduce global emissions and tackle climate change. However, mass electrification brings up new technical problems that need to be solved. The increasing penetration rates of electric vehicles will add an unprecedented energy load to existing power grids. The stability and the quality of power systems, especially on a local distribution level, will be compromised by multiple vehicles that are simultaneously connected to the grid. In this paper, the authors propose a choice-based pricing algorithm to indirectly control the charging and V2G activities of electric vehicles in non-residential facilities. Two metaheuristic approaches were applied to solve the optimization problem, and a comparative analysis was performed to evaluate their performance. The proposed algorithm would result in a significant revenue increase for the parking operator, and at the same time, it could alleviate the overloading of local distribution transformers and postpone heavy infrastructure investments.

Design and Research of Integrated PV and Storage Grid-Connected Generation System

2014 ◽  
Vol 1070-1072 ◽  
pp. 24-29
Author(s):  
Xiao Di Qin ◽  
Rong Rong Zhou ◽  
Lie Xia ◽  
Liang Hui Xu
Keyword(s):  
Energy Storage ◽  
System Integration ◽  
Tracking System ◽  
Storage System ◽  
Energy Storage System ◽  
Vanadium Redox Flow Battery ◽  
Generation System ◽  
Pv System ◽  
Design Scheme ◽  
And Storage

Based on practical project and application, the design scheme of small capacity of integrated PV and storage grid-connected generation system is presented in this paper. For demonstrative and experimental purpose in this project, it includes several typical PV modules, tracking system and grid-connected inverters. Entire design scheme covers system integration, grid-connected solution, PV array and bracket, monitoring system, energy storage system, and etc. Configuration and application prospect of energy storage system in grid-connected PV system are mainly introduced. The characteristics of lithium battery and vanadium redox flow battery, as well as their application in the field of distributed power generation are researched.

The Method Research of Production Enterprise Logistics System Integration

2013 ◽  
Vol 734-737 ◽  
pp. 3320-3323
Author(s):  
Kai Wang
Keyword(s):  
System Integration ◽  
Point Of View ◽  
System Capacity ◽  
Enterprise Management ◽  
Logistics System ◽  
Production Scale ◽  
Operation Process ◽  
Enterprise Logistics ◽  
The Individual ◽  
Integrated Logistics

With the expansion of consumer market and production scale, the effect of logistics in the enterprise management is also becoming increasingly prominent. But the individual enterprise's logistics system capacity is limited, can not meet the needs of production and consumption timely and the waste of resources in the operation process are the prominent problems in logistics management. This paper explored the logistics system integration ideas and workable solutions of production enterprise from integrated logistics system point of view.

BASIN CONFIGURATION OF A SIX-DIMENSIONAL MODEL OF AN ELECTRIC POWER SYSTEM

2002 ◽  
Vol 12 (06) ◽  
pp. 1333-1356 ◽  
Author(s):  
YOSHISUKE UEDA ◽  
HIROYUKI AMANO ◽  
RALPH H. ABRAHAM ◽  
H. BRUCE STEWART
Keyword(s):  
Power Systems ◽  
Power System ◽  
Initial Conditions ◽  
Electrical Power ◽  
Practical Importance ◽  
Intervention Strategy ◽  
Basins Of Attraction ◽  
Electric Power System ◽  
Point Of View ◽  
Electrical Power System

As part of an ongoing project on the stability of massively complex electrical power systems, we discuss the global geometric structure of contacts among the basins of attraction of a six-dimensional dynamical system. This system represents a simple model of an electrical power system involving three machines and an infinite bus. Apart from the possible occurrence of attractors representing pathological states, the contacts between the basins have a practical importance, from the point of view of the operation of a real electrical power system. With the aid of a global map of basins, one could hope to design an intervention strategy to boot the power system back into its normal state. Our method involves taking two-dimensional sections of the six-dimensional state space, and then determining the basins directly by numerical simulation from a dense grid of initial conditions. The relations among all the basins are given for a specific numerical example, that is, choosing particular values for the parameters in our model.

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