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The main goal of this thesis is improving the crane''s energy management strategy. This is the system that optimizes the fuel cost by controlling in real time how and when the two available power sources of the hybrid crane are used. Currently, the crane uses a rule-based heuristic strategy.
In this work we examine various power sources along with energy recovery and storage technologies for use in RTG cranes being able to handle the peak power
The results have shown that by using the proposed method, the energy can be effectively harvested from the crane into the flywheel energy storage system
Seaports are specifically designed for trading purposes. They are equipped with facilities for handling industrial and commercial goods as well as raw materials stored in containers. These facilities are often based on diesel cranes, which are noisy and produce air pollution. A possible solution to address this problem is replacing the diesel-power
A battery energy storage system: Produces critical power needed for projects without running diesel 24/7, which is ideal for maximizing the load efficiency of generators. Reduces diesel fuel consumption (and cost) typically by 40% to 60% – and as much as 95% – depending on the application. Boosts generator power up to 60 kW for start-up demand.
According to the operation process of ports, in the container unloading stage, electric energy consumption of fixed logistics equipment is mainly considered, such as cold ironing and quay cranes. In the stage of transportation to yards, hydrogen energy consumption is considered for mobile logistics equipment such as container trucks and
This paper describes and evaluates a hybrid propulsion system based on diesel generator and supercapacitors (SCs) as energy storage system (ESS) for a rubber tyre gantry (RTG) container crane, which currently operates within the yard of the Algeciras port terminal (Spain) powered by diesel electric generator for supplying the electric drives
An optimal energy management model for the grid-powered electric RTG crane is developed.. The RTG crane is retrofitted with a battery storage system and has energy recovery abilities.. The model aims to minimize the operation cost subjected to the maximum demand charges and to the Time of Use pricing structure.
For port container terminals, the RTG crane is used to transfer containers in the yard area or onto trucks, as shown in Fig. 1. Typically, most of electricity energy consumption in the crane system comes from lifting containers with various weights and different trajectories [5,7].
Kim et al. [12] used a supercapacitor energy storage to reduce the peak demand and gas emissions in an RTG crane system with savings in fuel consumption by 30% and 40% in CO2 emissions. A proposed supercapacitor energy store, in [12], used an indirect control method to find an optimal load sharing regime between the hoist motor and the energy
Energy storage is the capture of energy produced at one time for use at a later time [1] to reduce imbalances between energy demand and energy production. A device that stores energy is generally called an accumulator or battery. Energy comes in multiple forms including radiation, chemical, gravitational potential, electrical potential
proposed a BESS solution that would be quick and cost-efficient to deploy. The BESS, commissioned in March, is key for BGE, as it enables the utility to use electricity stored within the battery for the periods of this increased peak demand. The peak shaving made possible with the BESS gives the utility the power reliability needed
I really like how low tech this is. It could be a great storage solution in third world areas. No strange metals, no delicate tech, no special alloys. Easy to fix if it breaks. I have an alternative idea: Why not use the kind of crane for loading and unloading ships, and
Port container handling is mainly done using Rubber-Tired Gantry Cranes (RTGs). Energy costs, CO2 emissions and noise from port equipment are all
The increase in world trade urged the need for energy efficient ports. Handling containers inside ports is mostly carried out by Rubber Tire Gantry (RTG) cranes. The energy cost, CO 2 emissions and noise of the port equipment are problems which need advanced solutions to decrease the energy demand. The purpose of this work is to
DOI: 10.1016/j.cie.2016.03.022 Corpus ID: 25076233 Scheduling optimization of yard cranes with minimal energy consumption at container terminals @article{Sha2017SchedulingOO, title={Scheduling optimization of yard cranes with minimal energy consumption at container terminals}, author={Mei Sha and Zhang Tao and Ying
Energy supply / Transformer / Audio / Video Main control systems: Gantry drive, Hoist, Crane traverse Main Trolley: Energy supply / Cabin control / Crane control / Audio / Video Spreader: Energy supply / Control spreader / Scanning systems Typical electrical interfaces on Container Cranes: = need for Mobile Energy & Data Transmission Motorized
This study addresses the critical gap in the literature regarding the energy efficiency of intermodal terminals in smart cities, mainly focusing on crane operations during train loading processes. Novelty''s contribution lies in developing a comprehensive simulation model in FlexSim, where quantitative analysis of crane energy consumption, factoring in
energy cost saving. Keywords: energy storage system; RTG crane; active front end; energy savings 1. Introduction According to trade statistic data from the World Shipping Council (WSC) 127.6 million twenty-foot container equivalent unit (TEUs) were exported
The energy management strategy that we want to design will control the power supply for a larger system, the rubber-tired gantry (RTG) crane. Therefore it is necessary to research the RTG crane''s typical power demand. The complete power
Section snippets Literature review. A number of researchers studied scheduling of yard cranes in a container yard. Problems associated with allocating and scheduling the resources, such as berths, storage space and handling equipment in a container terminal have been extensively studied in the past few years.
This paper aims to highlight the peak demand problem in the two electrical cranes network and attempts to increase the energy saving at ports by using two different technologies: Energy Storage System (ESS) and Active Front End (AFE).
In summary, the following concerns have not yet been considered: (i) class-based storage policy and energy consumption in upper-level; (ii) workload balance and time windows in lower-level; (iii) multi period-bi-level bi-objective optimization model for integrated storage classes and dual shuttle cranes scheduling under class-based storage
In order to improve the energy efficiency and economic effect of conventional diesel-powered rubber-tired gantry (RTG) cranes in container terminals, various hybrid RTG cranes were studied. However, these current hybrid RTG cranes have several disadvantages, such as high initial investment cost and poor versatility of energy
The LPS 420 E is an ideal solution for terminals where every container counts. With up to 30 cycles per hour, the LPS 420 E is the perfect solution when it comes to container handling performance. The crane can be fitted with various types of fixed or telescopic spreaders. Ship sizes up to post-Panamax class are ideally servable for the LPS 420 E.
The increase in world trade urged the need for energy efficient ports. Handling containers inside ports is mostly carried out by Rubber Tire Gantry (RTG) cranes. The energy cost, CO 2 emissions and noise of the port equipment are problems which need advanced solutions to decrease the energy demand. The purpose of this work is to
This paper investigates the potential of hybrid energy source systems (HESS) that employ energy storage devices and peak power devices in a combination
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An Energy Storage System (ESS) is a potential solution to increase the energy efficiency of low voltage distribution networks whilst reinforcing the power system.
Battery Energy Storage Systems (BESS) containers are revolutionizing how we store and manage energy from renewable sources such as solar and wind power. Known for their modularity and cost-effectiveness, BESS containers are not just about storing energy; they bring a plethora of functionalities essential for modern energy management.
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