scholarly journals Implementation of the logistics train in the intralogistics system: A case study

2021 ◽  
Vol 11 (1) ◽  
pp. 896-906
Author(s):  
David Strnad ◽  
Gabriel Fedorko ◽  
Juraj Dribnak
Keyword(s):  
Simulation Model ◽  
Shelf Life ◽  
Programming Language ◽  
Business Processes ◽  
Solution Procedure ◽  
Operating Conditions ◽  
System A ◽  
Type Object ◽  
The Given

Abstract Intralogistics contributes significantly to the proper functioning of business processes. When designing and solving intralogistics systems, it is necessary to take into account the specific conditions in the given enterprise. The technical design, as well as the composition of the trolleys in the design of the transport system, must respect the specificities of the goods transported as well as shelf life and quantity. The study presents, for example, the implementation of a tugger train into an intercompany system with a solution procedure that is adapted to specific operating conditions and ensures the smooth functioning of the supply process. It is a principle based on the use of a simulation model. During its creation, three original sequences were developed in the programming language SimTalk. Their application decreases the use of blocks from the simulation program by up to 65% and it was possible to model more detailed processes that would not be possible in terms of functionality by using classical blocks. Fifteen directions of the language SimTalk were applied in their creation. Two variables of the type Integer, two variables of the type Object, and one variable of the type Real were defined.

A Practical Approach to Expedite a Pore to Process Simulation Model for a Rich Gas Condensate Reservoir – Case Study

2021 ◽  
Author(s):  
Mohamed Ibrahim Mohamed ◽  
Ahmed Mahmoud El-Menoufi ◽  
Eman Abed Ezz El-Regal ◽  
Ahmed Mohamed Ali ◽  
Khaled Mohamed Mansour ◽  
...  
Keyword(s):  
Simulation Model ◽  
Production Optimization ◽  
Operating Conditions ◽  
Gas Condensate ◽  
Western Desert ◽  
Design Parameters ◽  
Compositional Approach ◽  
Process Plant ◽  
Black Oil

Abstract Field development planning of gas condensate fields using numerical simulation has many aspects to consider that may lead to a significant impact on production optimization. An important aspect is to account for the effects of network constraints and process plant operating conditions through an integrated asset model. This model should honor proper representation of the fluid within the reservoir, through the wells and up to the network and facility. Obaiyed is one of the biggest onshore gas field in Egypt, it is a highly heterogeneous gas condensate field located in the western desert of Egypt with more than 100 wells. Three initial condensate gas ratios are existing based on early PVT samples and production testing. The initial CGRs as follows;160, 115 and 42 STB/MMSCF. With continuous pressure depletion, the produced hydrocarbon composition stream changes, causing a deviation between the design parameters and the operating parameters of the equipment within the process plant, resulting in a decrease in the recovery of liquid condensate. Therefore, the facility engineers demand a dynamic update of a detailed composition stream to optimize the system and achieve greater economic value. The best way to obtain this compositional stream is by using a fully compositional integrated asset model. Utilizing a fully compositional model in Obaiyed is challenging, computationally expensive, and impractical, especially during the history match of the reservoir numerical model. In this paper, a case study for Obaiyed field is presented in which we used an alternative integrated asset modeling approach comprising a modified black-oil (MBO) that results in significant timesaving in the full-field reservoir simulation model. We then used a proper de-lumping scheme to convert the modified black oil tables into as many components as required by the surface network and process plant facility. The results of proposed approach are compared with a fully compositional approach for validity check. The results clearly identified the system bottlenecks. The model can be used to propose the best tie-in location of future wells in addition to providing first-pass flow assurance indications throughout the field's life and under different network configurations. The model enabled the facility engineers to keep the conditions of the surface facility within the optimized operating envelope throughout the field's lifetime.

scholarly journals PROFESSIONAL RISKS TO HEALTH OF THE PERSONNEL OF EXIT BRIGADES OF SERVICE OF THE FIRST HELP

2021 ◽  
Vol 21 (4) ◽  
pp. 17-23
Author(s):  
V. O. Krasovskij ◽  
L. M. Karamova ◽  
G. R. Basharova
Keyword(s):  
Operating Conditions ◽  
Muscular System ◽  
System A ◽  
The Given

Clause analyzes the reasons of professional risks for health of the personnel of exit brigades of the first help. Clinical and hygienic researches in regional substation of a megacity have shown that in labour activity of these workers it is necessary to consider as leading professional harm action of transport vibration. The given circumstance and other reasons provide professional risks of development of illnesses of cardiovascular, bone-muscular system, a gastroenteric path. The interdepartmental complex of actions on improvement of operating conditions of the exit personnel is offered.

scholarly journals Educational Experimental Platform for Emulation of Photovoltaic Modules

2019 ◽  
Vol 2 (2) ◽  
Author(s):  
Srđan Lale ◽  
Milomir Šoja ◽  
Slobodan Lubura ◽  
Marko Ikić
Keyword(s):  
Simulation Model ◽  
Main Part ◽  
Current Mode ◽  
Operating Conditions ◽  
Experimental Platform ◽  
Photovoltaic Modules ◽  
Current Mode Control ◽  
Mode Control ◽  
Pv Module ◽  
The Given

This paper presents a one solution for photovoltaic (PV) emulator. A main part of the developed PV emulator is buckconverter with recently proposed new I2 dual current mode control (I2 DCMC). The given simulation and experimental resultsdemonstrate excellent performances of the proposed PV emulator: matching between the characteristics obtained from the developedmathematical (simulation) model of the PV module and from the PV emulator, adaptability to the emulated changes in solar insolationand temperature, simple and efficient manipulation with PV module parameters and operating conditions, which is useful especially foreducation purposes, and fast dynamics.

Simulation research on the influence of special ships on waterway through capacity for a complex waterway system: a case study for the Port of Meizhou Bay

SIMULATION ◽  
2019 ◽  
Vol 96 (4) ◽  
pp. 387-402 ◽  
Author(s):  
Jianping Shang ◽  
Wenyuan Wang ◽  
Yun Peng ◽  
Qi Tian ◽  
Ying Tang ◽  
...  
Keyword(s):  
Simulation Model ◽  
Challenging Problem ◽  
Simulation Technology ◽  
Natural Conditions ◽  
Simulation Research ◽  
The Real ◽  
System A ◽  
New Construction ◽  
Simulation Results

The study of waterway through capacity for ports is a challenging problem due to the randomness and complexity of the waterway system, which needs to be analyzed by simulation technology. This paper quantitatively studies the influence of special ships on waterway through capacity and provides corresponding measures to improve waterway through capacity. The complex waterway system in the Port of Meizhou Bay is employed as a case study. Considering the actual conditions in the Port of Meizhou Bay, including the ships, berths, waterways, and natural conditions, a Simio-based simulation model is established. The real operation data from the Port of Meizhou Bay in 2015 are used to verify the correctness and effectiveness of the model. The simulation results show that special ships reduce the waterway through capacity by 4.9% and suggest that circumnavigation strategies that can be adopted after the extension and new construction of waterway systems can improve the waterway through capacity by 5.9%.

Modeling and Simulation of Propeller and Hull System for Marine Propulsion Plant

2011 ◽  
Vol 383-390 ◽  
pp. 2121-2125
Author(s):  
Ren Li ◽  
Wen Xiao Zhang ◽  
Hua Yan Li
Keyword(s):  
Modeling And Simulation ◽  
Simulation Model ◽  
Dynamic Properties ◽  
Operating Conditions ◽  
New Method ◽  
Matlab Simulink ◽  
System A ◽  
Marine Propulsion ◽  
Simulation Results ◽  
Mechanical Devices

Aiming at the complexity of mechanical devices and the polytrope of operating conditions for marine propulsion plant, the modeling and simulation of propeller and dull system are investigated based on MATLAB/Simulink. The simulation model of propeller and dull system is constructed in which the Chebyshev fit expression across four quadrants is given for the propeller. So it becomes practical to express static and dynamic properties of propeller and dull system. A luxury cruises fitted on two engines and two fixed pitch propellers is considered to perform simulation tests. The actual navigation conditions of marine propulsion plant, including starting, parking and reversing etc, are taken into account. The simulation results analysis illustrates the correctness and validity of modeling and simulation for propeller and dull system. Thus provides a new method for the optimization and design of marine propulsion plant.

scholarly journals Research on the Optimization Design of Solar Energy-Gas-Fired Boiler Systems for Decentralized Heating

Energies ◽  
2021 ◽  
Vol 14 (11) ◽  
pp. 3195
Author(s):  
Ming Tao ◽  
Yanzhe Yu ◽  
Huan Zhang ◽  
Tianzhen Ye ◽  
Shijun You ◽  
...  
Keyword(s):  
Solar Energy ◽  
Optimization Design ◽  
Control Strategies ◽  
Energy System ◽  
Operating Conditions ◽  
Heating Systems ◽  
Hybrid Energy ◽  
System A ◽  
And Control

Solar energy-gas-fired boiler heating systems attract widespread attention due to their eco-friendly technologies and reasonable prices. In order to promote the application of a solar energy-gas-fired boiler system for decentralized heating, this study proposed a holistic method to optimize the combination of equipment specifications and control strategies of the system. A detailed mathematical model of the hybrid energy system was developed and validated by experiments to simulate various operating conditions and evaluate the optimal design results. A case study was conducted in Tianjin, China, and optimal schemes were obtained. The influence of different factors on the system’s annual comprehensive energy efficiency ratio (AEER) and annual cost (AC) were studied by sensitivity analysis; the results showed that the solar collector area was extremely valuable for the optimization of AEER and AC. The results of this study provide a reference for the optimization design of the solar energy-gas-fired boiler system, which is beneficial to the promotion of the utilization of solar energy.

scholarly journals PEOPLES PERCEPTION ON WORKING OF PANCHAYATI RAJ SYSTEM -A CASE STUDY OF KARIMNAGAR DISTRICTIN THE TELANGANA STATE OF INDIA

2021 ◽  
Vol 9 (12) ◽  
pp. 255-260
Author(s):  
L. Thirupathi ◽  
Keyword(s):  
Research Work ◽  
Constitutional Amendment ◽  
Effective Implementation ◽  
System A ◽  
Scheduled Castes ◽  
Reservation Policy ◽  
Grassroots Level ◽  
The Given ◽  
Panchayati Raj

My study is intended to analyse how Peoples perception is very important because of the 73rd constitutional amendment act that was introduced to ensure political participation of underprivileged groups like Scheduled Castes, Scheduled Tribes, Other Backward Classes and Women through the reservation of provisions in Panchayati Raj System at grassroots level democracy. In this context, the peoples perception of working of Panchayati Raj institutions in Karimnagar district plays a very crucial role to reveal the actual ground realities thereof and to what extent they accomplished the above-mentioned objectives. several policy initiatives have been taken for effective implementation of reservation policy in Panchayati Raj in the district. The present research work also focussed on the political backwardness of scheduled castes, scheduled Tribe leadership in Panchayati Raj Institutions at the Panchayati level. It also reveals peoples perception to the conscious understanding that people have of public functionaries and official issues in the society and realistically based on their understanding level in the given context on a particular aspect.

Energy and Economic Analysis of a Novel Hybrid Photovoltaic-Thermoelectric System for Building Cooling Applications

2019 ◽  
Author(s):  
Mohadeseh Seyednezhad ◽  
Hamidreza Najafi
Keyword(s):  
Economic Analysis ◽  
Operating Conditions ◽  
Building Model ◽  
System A ◽  
Ceiling Temperature ◽  
Building Cooling ◽  
Air Conditioning Systems ◽  
The Cost ◽  
Cooling Loads ◽  
The Given

Abstract An energy and economic analysis of a novel hybrid photovoltaic-thermoelectric (PV-TEC) system for building cooling applications is presented. It is considered that the roof is constructed from building integrated photovoltaic panels (BIPV) and thermoelectric (TEC) cooling modules are installed on top of the ceiling. The TEC modules are supplied by the PV panels, reducing the ceiling temperature and therefore maintaining a comfortable temperature for the occupants. A mathematical model is developed in MATLAB to simulate the performance of the hybrid PV-TEC system. A building energy model is also developed in eQuest to simulate the performance of a case study office building in Melbourne, FL. The hourly cooling demands are evaluated from the building model, and the PV-TEC system is sized to satisfy the cooling loads accordingly. The total annual energy consumption of the PV-TEC system is then calculated for various operating conditions according to the given characteristics for the selected TEC module and the required number of PV panels to supply the thermoelectric system with adequate electricity is evaluated. The cost of the system and associated savings are determined and discussed in detail. The results show that the proposed system is capable of maintaining the set point temperature for occupants’ comfort. The initial estimated cost of the hybrid PV-TEC system is found significantly higher than conventional air conditioning systems. However, the attractive features of the proposed system including high controllability and maintenance free operation as well as no need to refrigerant or major moving part are some of the aspects that are promising for building cooling applications.

scholarly journals Electrification of LPT in Algeciras Bay: A New Methodology to Assess the Consumption of an Equivalent E-Bus

Energies ◽  
2021 ◽  
Vol 14 (16) ◽  
pp. 5117
Author(s):  
Carola Leone ◽  
Giorgio Piazza ◽  
Michela Longo ◽  
Stefano Bracco
Keyword(s):  
Simulation Model ◽  
Public Transport ◽  
Operating Conditions ◽  
Charging Infrastructure ◽  
Charging System ◽  
Future Developments ◽  
Fast Charging ◽  
Average Consumption ◽  
Specific Line

The present paper proposes a new methodology to aid the electrification process of local public transport (LPT). In more detail, real drive cycles of traditional buses currently in use are evaluated together with other data to simulate the consumption of equivalent e-buses (electric buses) with similar characteristics. The results are then used in order to design the best charging infrastructure. The proposed methodology is applied to the case study of Algeciras Bay, where a specific line of LPT is considered. Real measurements are used as data for the simulation model, and the average consumption of an equivalent e-bus is obtained for different operating conditions. Based on these results, different sizes and locations for fast-charging infrastructure are proposed, and the size of the depot charging system is defined trying to maintain the current buses timetable. Finally, some future developments of the present work are presented by considering other bus lines that may benefit from the introduction of the defined charging systems.

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