scholarly journals Simulation Modeling of Integrated Multi-Carrier Energy Systems

2021 ◽  
Author(s):  
Nikolai Voropai ◽  
Ekaterina Sеrdyukova ◽  
Dmitry Gerasimov ◽  
Konstantin Suslov
Keyword(s):  
Simulation Model ◽  
Energy Supply ◽  
Energy Systems ◽  
Energy Hub ◽  
Carrier Energy ◽  
Internal And External Factors ◽  
Hub Model ◽  
The Impact ◽  
Technological Integration

Integrated multi-carrier energy systems give good possibilities to have high effectiveness of energy supply to consumers. Transformation of energy systems under the impact of internal and external factors remarkably strengthens the technological integration of those systems and supports development of integrated multi-carrier energy systems. The concept of energy hub is developed for modeling and simulation of integrated multi-carrier energy systems. Based on previous research, a simulation model of the energy hub is being developed. The basic principles of building a simulation model of an energy hub concept are discussed. Realization of simulation model using Matlab/Simulink is proposed. Simulation results for the integrated electricity and heat systems are explained to demonstrate the capabilities of the simulation energy hub model. A case study for application of the simulation model is discussed.

scholarly journals Development of a simulation model of an integrated multi-energy system based on the energy hub concept

2020 ◽  
Vol 216 ◽  
pp. 01028
Author(s):  
Nikolai Voropai ◽  
Dmitry Gerasimov ◽  
Ekaterina Serdyukova ◽  
Konstantin Suslov
Keyword(s):  
Simulation Model ◽  
Energy Systems ◽  
Energy System ◽  
External Factors ◽  
Matlab Simulink ◽  
Energy Hub ◽  
Integrated Energy Systems ◽  
Internal And External Factors ◽  
The Impact ◽  
Technological Integration

Transformation of energy systems under the impact of internal and external factors remarkably strengthens the technological integration of those systems and supports development of integrated multienergy systems. The paper discusses the problems of modeling the integrated energy systems and proposes an approach to construction of a simulation model using the Matlab/Simulink software and the energy hub concept.

scholarly journals Impact of demand response on BIPV and district multi-energy systems design in Singapore and Switzerland

2021 ◽  
Vol 2042 (1) ◽  
pp. 012096
Author(s):  
Christoph Waibel ◽  
Shanshan Hsieh ◽  
Arno Schlüter
Keyword(s):  
Demand Response ◽  
Programming Model ◽  
Systems Design ◽  
Energy Systems ◽  
Mixed Integer ◽  
Peak Shaving ◽  
Climate Conditions ◽  
Building Integrated Photovoltaics ◽  
Energy Hub ◽  
The Impact

Abstract This paper demonstrates the impact of demand response (DR) on optimal multi-energy systems (MES) design with building integrated photovoltaics (BIPV) on roofs and façades. Building loads and solar potentials are assessed using bottom-up models; the MES design is determined using a Mixed-Integer Linear Programming model (energy hub). A mixed-use district of 170,000 m2 floor area including office, residential, retail, education, etc. is studied under current and future climate conditions in Switzerland and Singapore. Our findings are consistent with previous studies, which indicate that DR generally leads to smaller system capacities due to peak shaving. We further show that in both the Swiss and Singapore context, cost and emissions of the MES can be reduced significantly with DR. Applying DR, the optimal area for BIPV placement increases only marginally for Singapore (~1%), whereas for Switzerland, the area is even reduced by 2-8%, depending on the carbon target. In conclusion, depending on the context, DR can have a noticeable impact on optimal MES and BIPV capacities and should thus be considered in the design of future, energy efficient districts.

scholarly journals District Cooling Versus Individual Cooling in Urban Energy Systems: The Impact of District Energy Share in Cities on the Optimal Storage Sizing

Energies ◽  
2019 ◽  
Vol 12 (3) ◽  
pp. 407 ◽  
Author(s):  
Dominik Dominković ◽  
Goran Krajačić
Keyword(s):  
Energy Supply ◽  
Energy Systems ◽  
Energy System ◽  
Integrated Modelling ◽  
Economic Costs ◽  
Battery Storage ◽  
Spatial Constraints ◽  
District Energy ◽  
Urban Energy ◽  
The Impact

The energy transition of future urban energy systems is still the subject of an ongoing debate. District energy supply can play an important role in reducing the total socio-economic costs of energy systems and primary energy supply. Although lots of research was done on integrated modelling including district heating, there is a lack of research on integrated energy modelling including district cooling. This paper addressed the latter gap using linear continuous optimization model of the whole energy system, using Singapore for a case study. Results showed that optimal district cooling share was 30% of the total cooling energy demand for both developed scenarios, one that took into account spatial constraints for photovoltaics installation and the other one that did not. In the scenario that took into account existing spatial constraints for installations, optimal capacities of methane and thermal energy storage types were much larger than capacities of grid battery storage, battery storage in vehicles and hydrogen storage. Grid battery storage correlated with photovoltaics capacity installed in the energy system. Furthermore, it was shown that successful representation of long-term storage solutions in urban energy models reduced the total socio-economic costs of the energy system for 4.1%.

scholarly journals Strategy for the Appropriation of a DSS in Small Bovine Producers Using Simulation and a Serious Video Game

Information ◽  
2020 ◽  
Vol 11 (12) ◽  
pp. 566
Author(s):  
Urbano Gómez-Prada ◽  
Martha Orellana-Hernández ◽  
Jesús Salinas-Ibáñez
Keyword(s):  
Simulation Model ◽  
Video Game ◽  
Information Technologies ◽  
Production Systems ◽  
Design And Development ◽  
Design And Development Research ◽  
Simulated Environments ◽  
Unified Process ◽  
The Impact

There is low adoption of Information Technologies (IT) in the administration of small bovine production systems which causes that most decisions are made based on the experience of the administrators and not based on data. This study proposes a methodological strategy to improve the adoption and appropriation of a Decision Support System (DSS) in the aforementioned kind of systems. The strategy includes gamification elements in the training supported in three IT tools, which help with the understanding of the connection between the tools. The tools are a simulation model, a serious video game, and the DSS. The design and development of the strategy used Design and Development Research and Case Study, System Dynamics to develop the simulation model and a Rational Unified Process to develop the serious video game and the DSS. The methodology was implemented in Santander, Colombia with informative sessions and working with producers in aided simulated environments with the goal of getting participants to use the proposed tools in their environments in a voluntary, autonomous, lasting way. Results showed the impact of the ludic and pedagogical components for the appropriation of the technology. 22 months after finishing the aided sessions 34% of the farmers show appropriation of the DSS and use it on their farms.

scholarly journals DAMPAK E-MEDIA TERHADAP KENAKALAN PERILAKU SEKSUAL PADA REMAJA DI BATULICIN

Jurnal Ecopsy ◽  
2016 ◽  
Vol 2 (3) ◽  
Author(s):  
Robby Adrianie ◽  
Hemy Heryati Anward ◽  
Neka Erlyani
Keyword(s):  
Sexual Behavior ◽  
Qualitative Approach ◽  
Genital Organ ◽  
Descriptive Case Study ◽  
Wide Range ◽  
The Subject ◽  
Internal And External Factors ◽  
The Impact ◽  
Media Data

ABSTRAK Remaja dengan berbagai masalahnya dapat memunculkan berbagai perilaku berupa kenakalan remaja. Kenakalan remaja mengacu kepada suatu rentang perilaku yang sangat luas, salah satu bentuk kenakalan remaja adalah kenakalan perilaku seksual. Perkembangan e-media seperti terbukanya informasi memungkinkan mengakses berbagai macam informasi pornografi, yang tidak layak dikonsumsi oleh remaja. Bentuk informasi ini sulit dikontrol dan mudah didapat bahkan dikota kecil seperti Batulicin. Tujuan penelitian ini untuk mengetahui dampak e-media terhadap kenakalan perilaku seksual pada remaja di Batulicin dan mengetahui bentuk-bentuk kenakalan perilaku seksual akibat e-media pada remaja di Batulicin. Metode yang digunakan adalah pendekatan kualitatif, dengan teknik studi kasus deskriptif yang bertujuan mengetahui dampak dan bentuk-bentuk e-media terhadap kenakalan perilaku seksual pada remaja di Batulicin. Subjek penelitian adalah 2 orang remaja SMA di Batulicin dan 1 orang remaja MA di Batulicin, berusia 15 sampai 21 tahun dan memiliki akses untuk menggunakan e-media. Teknik pengumpulan data penelitian ini menggunakan teknik observasi, wawancara, dokumentasi dan tes grafis. Hasil penelitian menunjukkan bahwa ketiga subjek telah melakukan hubungan seksual diluar nikah. Penyebabnya karena beberapa faktor internal dan eksternal. Tidak adanya norma yang dimiliki untuk menyaring informasi menjadikan subjek terjerumus dan melakukan kenakalan perilaku seksual. Informasi yang didapat melalui teman dan e-media seperti HP, laptop dan TV untuk memutar video porno. Bentuk kenakalan perilaku seksual ketiga subjek adalah berpegangan tangan, necking (berciuman sampai daerah dada), meraba payudara dan alat kelamin, petting (saling menempelkan alat kelamin), membaca atau menonton berbau pornografi, melakukan hubungan seksual. Kata kunci: E-Media, Kenakalan Perilaku Seksual, Remaja ABSTRACT  Adolescents with a variety of problems can bring a variety of behaviors such as delinquency. Juvenile delinquency refers to a very wide range of behaviors, one of which is sexual behavior delinquency. The development of e-media information such as the open information enable the access to various kinds of pornography, which is not suitable for adolescents. This kind of information is difficult to control and easy to obtain even in a small town like Batulicin. The purpose of this study was to find out the impact of e-media on sexual behavior delinquency, and the forms of sexual behavior delinquency as a result of e-media in adolescents in Batulicin. The method used in this study was a qualitative approach, with a descriptive case study technique aimed at knowing the impact and forms of e-media on sexual behavior delinquency in adolescents in Batulicin. The subjects were 2 adolescents in SMA at Batulicin and 1 adolescent in MA at Batulicin, aged 15 to 21 years and having an access to e-media. Data were collected using techniques of observation, interview, documentation and graphical test. The results showed that all three subjects had sexual relations outside marriage. It was caused by several internal and external factors. The absence of norms to filter information made the subject fall in sexual behavior delinquency. The information were obtained through friends and e-media such as HP, laptop and TV playing porn videos. The forms of sexual behavior delinquency in three subjects were holding hands, necking (kissing up to the chest), touching breast and genital organ, petting, reading or watching pornography, and sexual intercourse. Keywords: E-Media, Sexual Behavior Delinquency, Adolescent

scholarly journals What-if Simulation Modeling in Business Intelligence

2010 ◽  
pp. 2229-2247 ◽  
Author(s):  
Matteo Golfarelli ◽  
Stefano Rizzi
Keyword(s):  
Complex System ◽  
Simulation Model ◽  
Future Trends ◽  
Crucial Issue ◽  
Activity Diagrams ◽  
Commercial Area ◽  
Past Data ◽  
The Impact ◽  
Vital Factor

Optimizing decisions has become a vital factor for companies. In order to be able to evaluate beforehand the impact of a decision, managers need reliable provisional systems. Though data warehouses enable analysis of past data, they are not capable of giving anticipations of future trends. What-if analysis fills this gap by enabling users to simulate and inspect the behavior of a complex system under some given hypotheses. A crucial issue in the design of what-if applications is to find an adequate formalism to conceptually express the underlying simulation model. In this paper the authors report on how, within the framework of a comprehensive design methodology, this can be accomplished by extending UML 2 with a set of stereotypes. Their proposal is centered on the use of activity diagrams enriched with object flows, aimed at expressing functional, dynamic, and static aspects in an integrated fashion. The paper is completed by examples taken from a real case study in the commercial area.

scholarly journals Optimization of Packaging Line Performance: A Case Study of AB Breweries in Nigeria

2018 ◽  
pp. 1-22
Author(s):  
Chinedu James Ujam ◽  
Harold Chukwuemeka Godwin
Keyword(s):  
Simulation Model ◽  
Design Of Experiment ◽  
Production System ◽  
Simulation Software ◽  
Production Performance ◽  
Machine Breakdown ◽  
Fishbone Diagram ◽  
And Performance ◽  
The Impact

This paper presents an approach for improving productivity in breweries. A case study of AB brewery was adopted. Traditionally, packaging line improve  performance and productivity based on extrapolation of past experience, but in recent times, the traditional method could not meet up with high increase in demand of products, hence the need to adopt a new approach of using information technology and software to analyze problems and improving performance. Eleven weeks of the following data were collected and calculated; production outputs and running time; OPI and Target; and Packaging line downtimes. Downtimes were grouped into machine breakdown, planned downtime, and external downtimes and analyzed with histogram to know the impact of each group to the overall downtimes. To apply fishbone diagram, it was further grouped into Material, Method, Man and Machine after which a Pareto graph was plotted to understand the area of focus in tackling production system problems. Tecnomatrix plant simulation software was adopted to develop a simulation model that mimic the real system which further found hidden problems existing within the production system. Design of experiment was carried out to select the best alternatives from the results generated, and finally excel spreadsheet interface was developed for better analysis and performance tracking of optimized system. Result of data analysis indicated that machine breakdown and external downtimes were the major problems affecting performance, while simulation model revealed that unregulated system and un-optimized regulated lines recorded high machine breakdown and speed losses which affected the production performance output respectively. Design of experiment found the best speed combination of sensors to optimize two labellers.

scholarly journals Optimal sizing of a distributed energy system with thermal load electrification

2020 ◽  
Vol 197 ◽  
pp. 01006
Author(s):  
Pietro Lubello ◽  
Guglielmo Vaccaro ◽  
Carlo Carcasci
Keyword(s):  
Thermal Load ◽  
Large Scale ◽  
Energy Systems ◽  
Power Production ◽  
Electricity Production ◽  
Distributed Energy ◽  
Optimal Sizing ◽  
First Case ◽  
The Impact

Renewable energy systems (RES) are currently being deployed on a large scale to meet the ambitious sustainable development goals for the next decades. A higher penetration of sustainable means of power production passes through the diffusion of RES-based distributed energy systems. The hybridization of such systems and their integration with Energy Storage Systems (ESS) can help improve reliability and level the mismatch between power production and consumption. In this paper, a novel modular tool for the simulation of distributed energy systems is presented by means of its application to a case study. The considered system is composed by PV modules, ESS and heat pumps. The optimal sizing of the components for self-consumption has been obtained through an electricity production cost minimization. A comparison between two different configurations has been conducted: in the first case, the thermal load is completely satisfied by a natural gas-fired boiler, while in the latter case, part of the thermal load is satisfied by a heat pump. The results have highlighted the impact of ESS on the economics of distributed energy systems and how the investment in such systems, in conditions similar to the case study, can be more easily sustained if a share of the total energy consumption of the unit is shifted from the thermal to the electrical part.

scholarly journals Optimal Operation of Integrated Electrical and Natural Gas Networks with a Focus on Distributed Energy Hub Systems

2020 ◽  
Vol 12 (20) ◽  
pp. 8320
Author(s):  
Mohammad Hemmati ◽  
Mehdi Abapour ◽  
Behnam Mohammadi-Ivatloo ◽  
Amjad Anvari-Moghaddam
Keyword(s):  
Natural Gas ◽  
Gas Flow ◽  
Energy Systems ◽  
Energy System ◽  
Optimal Operation ◽  
Electrical Load ◽  
Energy Hub ◽  
Proposed Model ◽  
Carrier Energy ◽  
Integrated Energy System

Coordinated multi-carrier energy systems with natural gas and electricity energies provide specific opportunities to improve energy efficiency and flexibility of the energy supply. The interdependency of electricity and natural gas networks faces multiple challenges from power and gas flow in corresponding feeders and pipes and connection points between two infrastructures’ points of view. However, the energy hub concepts as the fundamental concept of multi-carrier energy systems with multiple conversion, storage, and generation facilities can be considered as a connection point between electricity and gas grids. Hence, this paper proposes an optimal operation of coordinated gas and electricity distribution networks by considering interconnected energy hubs. The proposed energy hub is equipped with combined heat and power units, a boiler, battery energy storage, a heat pump, and a gas-fired unit to meet the heating and electrical load demands. The proposed model is formulated as a two-stage scenario-based stochastic model aiming to minimize total operational cost considering wind energy, electrical load, and real-time power price uncertainties. The proposed integrated energy system can participate in real-time and day-ahead power markets, as well as the gas market, to purchase its required energy. The AC-power flow and Weymouth equation are extended to describe power and gas flow in feeders and gas pipelines, respectively. Therefore, a realistic model for the integrated electricity and gas grids considering coupling constraints is satisfied. The proposed model is tested on the integrated energy system and consists of a 33-bus electrical network and a 6-node gas grid with multiple interconnected energy hubs, where the numerical results reveal the effectiveness of the proposed model.

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