{"title":"Industrial Pressure Measurement for a Thermo-Electric Hybrid Solar System","authors":"Andrei Burta, R. Szabó, A. Gontean","doi":"10.23919/SpliTech52315.2021.9566375","DOIUrl":"https://doi.org/10.23919/SpliTech52315.2021.9566375","url":null,"abstract":"This work presents a method for creating pressure measurements on the pipes of a thermo-electric hybrid solar system. The pressure is measured by multiple pressure sensors placed on key parts of the solar system. The solar system heats the water from the tank using solar energy. The water is pumped via pipes which can have various pressures. Pressure is essential to be measured, to protect the pipeline from destruction. The pressure sensors data is acquired via a serial RS-485 bus. Using smart grid systems, the data is stored in a local database and on an SQL server, as a backup.","PeriodicalId":119005,"journal":{"name":"2021 6th International Conference on Smart and Sustainable Technologies (SpliTech)","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126048163","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
A. Shumba, Teodoro Montanaro, Ilaria Sergi, Massimo De Vittorio, L. Patrono
{"title":"A Smart IoT-aware Backyard Poultry Farming exploiting low-cost and low-power Technologies","authors":"A. Shumba, Teodoro Montanaro, Ilaria Sergi, Massimo De Vittorio, L. Patrono","doi":"10.23919/splitech52315.2021.9566396","DOIUrl":"https://doi.org/10.23919/splitech52315.2021.9566396","url":null,"abstract":"Backyard chicken rearing is very lucrative for low-income families and unemployed individuals because of the high-quality protein in chicken meat and its popularity in many households. It is widespread especially in developing countries in Southern Africa, however, often, farmers can incur losses due to unpredictable weather conditions that can adversely affect the health and growth of the birds and consequently the quality of the produced meat. Chicken rearing is also time-consuming and labor intensive, factors that can cause inefficiency and low productivity. IoT enabling technologies could significantly improve profitability and reduce production cost by minimizing time consumption and manual labor requirements. However, many available on-market technologies enabling smart poultry farming like IoT capable automated environmental monitoring and actuating systems are expensive and therefore not attractive to small scale backyard farmers. This paper describes an innovative modular architecture based on fast prototyping and low-cost components to monitor and control the environmental conditions inside chicken coops as well as keep track of food and water delivery. The proposed architecture consists of a network of sensors, a local gateway, local actuators, a cloud service, and a web application and a mobile app that act as dashboards for data visualization and commands input. With the aim of demonstrating the feasibility of the architecture, an initial prototype was implemented and tested in a real situation within a farm in Southern Africa demonstrating the effectiveness of the system and highlighting the important and useful contribution that fast-prototyping devices, tools and technologies can bring to the sector.","PeriodicalId":119005,"journal":{"name":"2021 6th International Conference on Smart and Sustainable Technologies (SpliTech)","volume":"65 1-2","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114122728","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
D. López-de-Ipiña, Jorge el Busto, Daniel Lauzurica, D. Casado
{"title":"Social Coin: Blockchain-mediated incentivization of citizens for sustainable collaborative processes","authors":"D. López-de-Ipiña, Jorge el Busto, Daniel Lauzurica, D. Casado","doi":"10.23919/SpliTech52315.2021.9566325","DOIUrl":"https://doi.org/10.23919/SpliTech52315.2021.9566325","url":null,"abstract":"Citizen and end-user engagement to seek their collaboration in common good collaborative processes is hard to sustain in time. Self-motivation is not enough to guarantee sustainability of co-creation or crowdsourcing campaigns. Long-time sustainability is essential to achieve effective and positive behaviour change. This work describes our efforts to give place to an auditing and rewarding mechanism for collaborative processes enacted by the application of Blockchain. This is achieved by introducing a Social Coin. This paper describes the architecture to enable such solution and the implications of choosing different Blockchain networks for its implementation. The aim is to get ready to assess such currency in real deployments where a suite of social good campaigns encouraging fulfilment of sustainable development goals are fostered.","PeriodicalId":119005,"journal":{"name":"2021 6th International Conference on Smart and Sustainable Technologies (SpliTech)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131120730","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"GPU-enabled Framework for Modelling, Determination and Simulation the LCR of Mobile Networks in Smart Cities Limited by η-µ Distributed Fading and Interference","authors":"D. Krstić, S. Suljovic, N. Petrovic, Sinisa Minic","doi":"10.23919/splitech52315.2021.9566399","DOIUrl":"https://doi.org/10.23919/splitech52315.2021.9566399","url":null,"abstract":"An analysis of the receiver with selection combining (SC) used in mobile networks in smart cities, based on the signal-to-interference-ratio (SIR), in the presence of η -µ multipath fading and η-µ distributed co-channel interference (CCI), will be given in this paper. The expression for the level crossing rate (LCR) will be derived and graphically shown. The aim is to point the influence of parameters of η -µ fading and CCI on the LCR. Follows, it will be introduced a network modelling, simulation and planning software environment leveraging a General-Purpose Graphics Processing Unit (GPGPU) paradigm and linear optimization. The proposed approach significantly accelerates LCR calculation, while improving Quality of Service (QoS) and reducing costs at the same time.","PeriodicalId":119005,"journal":{"name":"2021 6th International Conference on Smart and Sustainable Technologies (SpliTech)","volume":"60 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131163971","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Membrane Separation for Light Hydrocarbons Recovery in the Petrochemical Industry","authors":"Limei Gai, Yee Van Fan, P. Varbanov, J. Klemeš","doi":"10.23919/splitech52315.2021.9566419","DOIUrl":"https://doi.org/10.23919/splitech52315.2021.9566419","url":null,"abstract":"For petrochemical processes, the key questions to solve are: how to reduce the discharged organic tail gas; how to reuse and recycle the discarded organic streams; what is the optimal recovery ratio to ensure the most efficient use of resources and the minimum impact on the environment? The current study examines a polyethylene plant to solve these problems. Optimising the emission reduction of olefin tail gas in polyethylene synthesis can improve the utilisation rate of waste resources and bring practical economic benefits to the factory. It can significantly reduce environmental pollution. The annual economic revenue and payback period are considered. The objective function with the recovery ratio as the principal degree of freedom is optimised. The light hydrocarbons are recovered by membrane separation from olefin tail gas of polyethylene synthesis. A range of membrane area and recovery ratio are identified and analysed, suggesting an optimal recovery rate. The results of the case study show that the recovery ratio of light hydrocarbons (C2+) is 53.6 %, which has a significant economic benefit.","PeriodicalId":119005,"journal":{"name":"2021 6th International Conference on Smart and Sustainable Technologies (SpliTech)","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131523903","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Coupling of Euler Eulerian and Euler Lagrangian Spray Methods with Chemistry Kinetics for Modeling of Reactive Flow and Pollutant Formation","authors":"Filip Jurić, M. Vujanovic, Z. Petranović","doi":"10.23919/SpliTech52315.2021.9566356","DOIUrl":"https://doi.org/10.23919/SpliTech52315.2021.9566356","url":null,"abstract":"During energy transition, internal combustion engines continuously develop in terms of pollutant reduction and energy efficiency increase. In modern engine engineering, the development is performed through experimental research and utilizing different computational approaches. Therefore, to contribute to the development and analyze the transient processes occurring within the engine combustion chamber, a new computational method combining the Euler Eulerian multi-continuum approach and detailed chemistry kinetic was used. Such an approach was previously verified and validated against spray and combustion processes modeling in the constant volume chamber, and the approach was successfully employed for modeling a single direct injection diesel engine case. The approach was compared to the widely used Euler-Lagrangian spray approach. The generated computational model considers liquid fuel injection, jet disintegration, droplet atomization, evaporation processes, vapor fuel combustion, emission formation and swirl motion. The purpose of the present research is to evaluate the capabilities of two different methods for modeling spray, combustion and emission processes for different engine operating points. For both modeling approaches, the calculated results, including the mean pressure traces, released heat and emission concentrations, are in good agreement with the available experimental data.","PeriodicalId":119005,"journal":{"name":"2021 6th International Conference on Smart and Sustainable Technologies (SpliTech)","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116506609","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Adaptive Protection Scheme for AC Microgrids: Simulations for Grid-Connected/Islanded Mode","authors":"M. Longo, M. Brenna, Muhammad Azhar Hayat Khan","doi":"10.23919/SpliTech52315.2021.9566458","DOIUrl":"https://doi.org/10.23919/SpliTech52315.2021.9566458","url":null,"abstract":"The traditional grid incurs heavy investment, limited reliability, increased emissions of greenhouse gases and increased transmission line losses. It has made the utility to opt for connecting numerous renewable based micro sources near the customer premises, as per their requirement and providing intelligent control for the grid. As a comprehensive solution, microgrids are suggested by the researchers which would provide reliable, high quality and efficient supply to its customers. The connection of microgrid in the existing distribution network makes the radial network more complicated. The scope of this work is creating a literature review in order to facilitate the proposition of new approaches. In the first phase, Literature Review is conducted in order to collect enough relevant data regarding the topic. Possible and to date protection schemes for AC Microgrids are enlisted and reviewed. In the second part of the work, a grid is designed to test a suitable protection system for AC Microgrids for both grid-connected and islanded mode of operation.","PeriodicalId":119005,"journal":{"name":"2021 6th International Conference on Smart and Sustainable Technologies (SpliTech)","volume":"113 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127699145","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Absorbed Power Density at the Surface of Planar Tissue due to Radiation of Dipole Antenna","authors":"D. Poljak, V. Doric, A. Šušnjara","doi":"10.23919/splitech52315.2021.9566442","DOIUrl":"https://doi.org/10.23919/splitech52315.2021.9566442","url":null,"abstract":"The paper deals with an analytical/numerical assessment of the absorbed power density (Sab) in the planar model of the human tissue due to radiation of dipole antenna. The effect of two media interface (air-body) is taken into account via the Fresnel plane wave reflection coefficient. The antenna is analyzed by solving the Pocklington integrodifferential equation and related integral expressions for the radiated electric and magnetic field, respectively. Some illustrative numerical results are given for the radiated field on the model surface and Sab pertaining to the frequency range of the fifth generation (5G) mobile communication systems.","PeriodicalId":119005,"journal":{"name":"2021 6th International Conference on Smart and Sustainable Technologies (SpliTech)","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132607620","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Ilaria Sergi, L. Catarinucci, Teodoro Montanaro, R. Colella, A. Shumba, S. Del Ferraro, P. Lenzuni, L. Patrono
{"title":"An IoT-aware smart system to detect thermal comfort in industrial environments","authors":"Ilaria Sergi, L. Catarinucci, Teodoro Montanaro, R. Colella, A. Shumba, S. Del Ferraro, P. Lenzuni, L. Patrono","doi":"10.23919/SpliTech52315.2021.9566378","DOIUrl":"https://doi.org/10.23919/SpliTech52315.2021.9566378","url":null,"abstract":"There are many industrial environments that expose workers to perform arduous work in high heat-stress conditions, which can lead to rapid increases in body temperature that elevate the risk of heat-related illness and even death. A recent very important challenge is focused on systems able to mitigate work-related heat injury trying to evaluate physiological strain responses of the workers by measuring in continuous some parameters such as heart rate and skin temperatures in several points of the body. Recent advancements in wearable devices and more in general in Internet of Things enabling technologies have been made to monitor one or more physiological indices of heat strain by using low cost and low power devices with the opportunity, often, to correlate them with environment conditions regulated through other smart things such as HVAC systems. This paper proposes a smart system able to monitor in continuous and in unobtrusive way skin temperature and heart rate and to detect real-time heat-stress conditions for workers. The proposed solution is based on scalable and high performance RESTful and Cloud-based software architecture. Main components of the system are described clearly showing the interaction among them and the used communication protocols. Some first feasibility experiments have been carried out in a controlled test environment such as a laboratory whose initial and partial results are included here. Finally, a proof-of-concept is reported in order to describe main functionalities and interactions of the proposed system.","PeriodicalId":119005,"journal":{"name":"2021 6th International Conference on Smart and Sustainable Technologies (SpliTech)","volume":"43 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134146003","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Overview of technical and operational measures for emission reduction in the marine sector","authors":"Stjepan Herceg, N. Vladimir, Luka Boban, V. Soldo","doi":"10.23919/SpliTech52315.2021.9566355","DOIUrl":"https://doi.org/10.23919/SpliTech52315.2021.9566355","url":null,"abstract":"With economic and population growth it is expected that the shipping sector will continue to grow even further. The negative environmental and health effects of the seaborne trade, which are caused by emissions of greenhouse gases and harmful pollutants, have to be reduced. The International Maritime Organization introduced several measures to reduce air pollution in the shipping sector, which leads to extensive investigation and development of alternative fuels and other measures which will help to reduce air pollution from ships. In this short overview, based on available literature the most promising alternative fuels and other technical and operational measures with their strengths and shortcomings have been described. Employing hydrogen- and electrical-powered ships can lead shipping industries to achieve the carbon-neutral goal but until the production and transportation of hydrogen and electricity come from 100% renewable resources, fuels with less carbon and pollutants, like methanol, LNG, and biofuels will dominate the market in the transition period. In the transition period, waste heat technologies and other technical and operational measures can significantly reduce fuel consumption and the emission of harmful pollution.","PeriodicalId":119005,"journal":{"name":"2021 6th International Conference on Smart and Sustainable Technologies (SpliTech)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2021-09-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125208963","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}