Atlantis Highlights in Engineering最新文献

{"title":"Improvement of Original Soil with Addition of Variation of Embankment Based on CBR (California Bearing Ratio) Value","authors":"I. Ibrahim, Andi Herius, Nadra Mutiara Sari, M. A. Iskandarsyah, M. Rahman","doi":"10.2991/ahe.k.220205.013","DOIUrl":"https://doi.org/10.2991/ahe.k.220205.013","url":null,"abstract":"Soil is the most widely used material in the construction of a construction. In order for the soil to carry the construction load on it, an improvement in the structure and density of the soil itself is needed. This is in accordance with the technical requirement that the soil must be hard. If the soil does not meet the requirements, it is necessary to stabilize it by adding embankment soil as in this study which stabilized clay soil with variations of 50% and 75% addition of selected embankment soil. Clay samples were taken in the Keramasan area. The test was carried out in the laboratory of the Department of Civil Engineering, State Polytechnic of Sriwjaya to determine the Comparison of CBR (California Bearing Ratio). The results showed that the original soil sample had a moisture content of 36.15%, a specific gravity of 2.55, a liquid limit of 65, 65%, plasticity index 31.36% and CBR 9.00%. Based on the USCS Classification, the soil sample belongs to the CH type, which is clay with a moderate to poor rating. From the results of soil testing that has been stabilized, the optimal water content is 31%, specific gravity is 2.60, liquid limit is 54.04%, plasticity index (IP) is 24.70% and CBR 11.85 (addition of 50% of selected embankment soil). ). While the addition of 75% of the selected embankment soil, obtained the optimum moisture content of 25.1%, specific gravity 2.60, liquid limit 36.61%, IP 13.19% and CBR 12.02%. It can be concluded that the addition of 75% embankment soil gets a higher CBR value than the addition of 50% of embankment soil and original soil (without addition).","PeriodicalId":177278,"journal":{"name":"Atlantis Highlights in Engineering","volume":" 23","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132095880","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":"Speed Of Reaching The Full Potential Heat Capacity Of A Basalt Product: Experimental Results","authors":"Karin Rindt, L. Pilař, F. Hrdlička","doi":"10.2991/ahe.k.220301.014","DOIUrl":"https://doi.org/10.2991/ahe.k.220301.014","url":null,"abstract":"Renewable Energy Sources naturally deliver energy intermittently, causing fluctuations in energy supply. The energy is therefore also not provided corresponding to the actual need, but according to the availability. Hence, the demand for energy storage is rising with the increasing utilization of renewable energy sources, tackling the difficulties coming along with it. Carnot-Batteries are one out of a few geographically independent storage possibilities for longer durations. The thermal energy storages employed in Carnot-Batteries vary from liquid molten salt storage with two-tanks or single-tank thermocline storage to packed bed configurations with encapsulated PCM or natural solid materials, like rocks. Storage materials, which are found plenty in nature, having nearly no direct impact on the environment, are water and rocks. Natural Rocks offer a greater temperature span for operation than water and are therefore suitable for a wider range of applications. A possible natural rock for use in thermal energy storage is volcanic material basalt. In this experimental work, basalt, after its usage in cast form as flue pipes in a power plant, is analyzed, focusing on its properties for energy storage applications. Using this product would offer the reuse of an otherwise not anymore useful, leftover product and provide a storage material without the need of taking it from nature. The experimental research to retrieve the speed of reaching the full potential heat capacity of this product is described. The samples of basalt and the basalt product are analyzed at different temperatures from 300°C to 750°C. Additionally, air cooling, from these temperatures down to 100°C, and surface structure changes are evaluated. Insights into important boundary conditions for employment as storage material are given. In future work, it is anticipated to use these results as the base for a charging model of the basalt product and its validation.","PeriodicalId":177278,"journal":{"name":"Atlantis Highlights in Engineering","volume":"81 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116879355","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":"Implementation of Smart Grid System for Alternative Energy Power Plants Sources","authors":"Masayu Anisah, Yudi Wijanarko, Renny Maulidda, Johansyah Al Rasyid, D. Wp, M. Ramadhan, Mohammad Noviansah","doi":"10.2991/ahe.k.220205.040","DOIUrl":"https://doi.org/10.2991/ahe.k.220205.040","url":null,"abstract":"Electrical energy is included in the most essential needs and cannot be separated from human activities. The electrical energy produced is still dominated by power plants by conventional energy sources so that the use of alternative energy is needed to prevent the limitation of energy sources. Alternative energy that is often used is a source of solar electricity that produces electricity by utilizing sunlight. In an effort to increase and utilize renewable energy sources, researchers seek to design and implement a smart grid system on alternative energy sources. The smart grid system allows users to monitor and control the energy used by analyzing the direct parameters to be assessed. Using this smart grid system can help overcome limitations in monitoring because it can be done remotely. This system uses the ACS712 sensor to detect the current at the DC load, and the PZEM004T sensor for the AC load. It communicates via an IoT-based internet network using ESP 32 with the percentage of errors obtained in the power dc load test resulting in an error rate of 0.012% and in the power AC load testing of 0.064%.","PeriodicalId":177278,"journal":{"name":"Atlantis Highlights in Engineering","volume":"111 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115953135","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":"Development of a Test Method to Evaluate Lithium-Ion Batteries for Second Life in Renewable Energy Applications","authors":"Mussab Najeeb, U. Schwalbe","doi":"10.2991/ahe.k.220301.018","DOIUrl":"https://doi.org/10.2991/ahe.k.220301.018","url":null,"abstract":"Lithium-ion batteries can still be used in many applications after removal from their first use in electric vehicles, e.g. as a storage media in photovoltaic systems and for grid support. Therefore, there is a great need to develop reliable methodologies and tools to characterize the expected performance of lithium-ion batteries after their first life in electric vehicles to enable the economical and sustainable re-use of the large amount of lithium-ion batteries, which will be available in the near future. In this paper, we will develop a robust, fast, and non-destructive measurement procedure using artificial intelligence to estimate their state of health. Keywords— Lithium-ion batteries, Second life of batteries, Battery modelling, Artificial neural networks, State of charge, State of health, Electrical vehicle, Energy storage systems","PeriodicalId":177278,"journal":{"name":"Atlantis Highlights in Engineering","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114604386","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":"The Effect of Quenching Media on the Hardness of AISI 1045 Steel","authors":"M. Mulyadi, Dodi Tafrant, Hendradinata Hendradinata, Z. Zainuddin","doi":"10.2991/ahe.k.220205.012","DOIUrl":"https://doi.org/10.2991/ahe.k.220205.012","url":null,"abstract":"Steels, as one of the main components of construction requires great strength. Steel can be modified its strength by adjusting the percentage of the amount of its constituent substance composition. Some substances that can be used as a composition in steel include: Iron (Fe), Carbon (C), Phosphorus (P), Manganese (Mn), Sulfur (S), Chrome (Cr), and so on. In addition, according to its use, steel can also be mixed with other substances to form alloy steel. However, most steels are only dominated by a mixture of iron (Fe) and carbon (C) called carbon steel. In its initial condition, in carbon steel, a mixture of Fe and C will form ferrite as the main component of steel. The ferrite contained in the steel will make the steel more ductile, but its hardness value is minimal. In some cases, sometimes steel with a higher hardness value will be needed, with the same percentage of content. For this reason, an effort is needed to increase the hardness value of steel. Efforts to increase the value of this steel hardness can be done by treating the steel with heat treatment. One method of this heat treatment is by quenching. This is done by heating the steel to a temperature of 850C, and then rapidly reducing the temperature. With an increase in temperature, the crystal structure of the steel will deform to a ferlite structure. The ferlite structure will deform again slowly into ferrite as the temperature decreases. However, if the temperature is lowered rapidly, the steel structure will deform to martensite instead of unformed ferrite. The martensite phase is harder than ferrite. This research examines the quenching process using several cooling media on AISI 1045 steel. The cooling media used are: Circulated air, water, lubricating oil, and liquid smoke.","PeriodicalId":177278,"journal":{"name":"Atlantis Highlights in Engineering","volume":"78 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126312177","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":"Eucalyptus pellita Actived Carbon for Fe Absorption Effect of Carbonization Temperature and Concentration of KOH Activator","authors":"L. Kalsum, Idha Silviyati, Jenie Fahlevi Putri","doi":"10.2991/ahe.k.220205.042","DOIUrl":"https://doi.org/10.2991/ahe.k.220205.042","url":null,"abstract":"Eucalyptus pellita bark is a waste from the pulp industry that can be used as a raw material in activated carbon manufacturing because it contains high enough cellulose, hemicellulose, and lignin. This study aims to determine the effect of various carbonization temperatures and KOH activator concentrations on Fe absorption in water. Making activated carbon procedure consisted of dehydration, carbonization, and activation. Furthermore, the analysis of activated carbon characteristics was based on Fe absorption. The variations of this study consisted of carbonization temperature, 250oC, 300oC, and 400oC, and variations of KOH activator concentrations, 0.2 N, 0.7 N, and 1.2 N. The best-Eucalyptus pellita bark activated carbon obtained for carbonization temperature at 350oC and an activator concentration at 1.2 N with the value of Fe absorption was 95.343%.","PeriodicalId":177278,"journal":{"name":"Atlantis Highlights in Engineering","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125089543","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":"Geographic Information System Mapping and Management of Child with the Highest Nutritional Potential in Prabumulih City Using K-Means Clustering Method","authors":"Leni Novianti, Robinson Robinson, Ienda Meiriska, Resti Atika Sari","doi":"10.2991/ahe.k.220205.065","DOIUrl":"https://doi.org/10.2991/ahe.k.220205.065","url":null,"abstract":"","PeriodicalId":177278,"journal":{"name":"Atlantis Highlights in Engineering","volume":"53 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131386416","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":"Preference Study of Marginal Society in Palembang City who Live in Subsidized Houses and Flats on the Need for Space as A Place for Activity","authors":"R. Marpen, I. Ibrahim, Hws. Putra, A. Ismail, Affendi Bin Bahaudin","doi":"10.2991/ahe.k.220205.070","DOIUrl":"https://doi.org/10.2991/ahe.k.220205.070","url":null,"abstract":"Palembang city is one of the metropolitan cities in Indonesia. The strongest character is seen when the growth of the residential environment is quite dense and the economic level of the community is quite low. This is the impact of high land and property prices in big cities such as Palembang. The phenomenon is that a new family with a limited economy chooses to build a house on a plot owned by their parents or chooses to develop an existing old house. This has an impact on the increasingly dense residential environment that is not directed with irregular buildings. In South Sumatra alone, about 9,987 housing units are needed to accommodate a total of 63,845 residents or often referred to as the housing backlog. This issue is very important to provide solutions to problems related to meet the needs of housing in urban areas. Some of the solutions provided by the government are by making flats (rusun) or subsidized houses. However, the increasing number of members in the family who demand greater space requirements must be considered for the possibility of residential development carried out by people living in subsidized houses and flats. Through this research, it is hoped that the ideal standard for the development of a residential module can be formulated that can accommodate the growing needs of family activities in the concept of a modular house. In this research, identification, analysis, and formulation were carried out in several stages: (1) identification of standard forms of housing provided by the government; subsidized housing and flats, (2) collecting data on community preferences for the need for residential space development as a forum for their activities; with a sample of subsidized houses, flats, and densely populated settlements. Based on the results of the study of preference aspects, it can be concluded that subsidized housing and flats have been channeled to marginalized communities in need in terms of people who have low economic conditions. This can be seen from the observation that most of the houses are inhabited by their owners based on data taken from several flats and subsidized houses. Most of the occupations of residents of flats and subsidized houses are selfemployed and traders who earn mostly less than 5 million. Most of the milk houses and subsidized houses are still in standard condition and have an area of approximately 36 m2.","PeriodicalId":177278,"journal":{"name":"Atlantis Highlights in Engineering","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131247957","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":"Utilization of Green Betel Leaves (Piper Betle L) Extract as an Additive Material on Paper Soap Production","authors":"Endang Supraptiah, Aina Fathiah, Idha Silviyati, Jaksen Jaksen, Aisyah Suci Ningsih, T. Lestari, Hasna Salsabila, Issye Lissri","doi":"10.2991/ahe.k.220205.076","DOIUrl":"https://doi.org/10.2991/ahe.k.220205.076","url":null,"abstract":"The pandemic caused by COVID-19 virus is a big thing faced by people all over the world, including Indonesia. Washing hands with soap and water is one way to prevent the spread of COVID-19 virus. Soap formation is the saponification process which is the reaction between triglycerides and alkali that produces glycerol. One of the inovations on soap production is paper soap. Paper soap is a soap that easy to carry because its small and thin shape. Soap antiseptic properties can be produced by the addition of other materials, such as green betel leaves (Piper betle L) extract. This research aims are to produce paper soap product that compatible with SNI 3532:2016 characteristics and to get the best paper soap formulation. Paper soap production using coconut oil and Virgin Coconut Oil (VCO) and green betel leaves extract composition 2 ml. 4 ml and 6 ml. The analysis that has been done to determine soap characteristic is water content, insoluble in etanol, free fatty acid, free alkali pH, and foam stability. Characteristics of paper soap from coconut oil and VCO with 4 different treatments all according to the requirements of SNI 3532:2016 with a water content value of 0.25%-2.09%, insoluble ingredients in ethanol 0.112% 1.876%, free fatty acids 1.128% 2.425%, pH 9.25 – 10.73, and foam stability 77.96% 90%.","PeriodicalId":177278,"journal":{"name":"Atlantis Highlights in Engineering","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123756657","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":"Proceedings of the 6th FIRST 2022 International Conference (FIRST 2022)","authors":"","doi":"10.2991/978-94-6463-118-0","DOIUrl":"https://doi.org/10.2991/978-94-6463-118-0","url":null,"abstract":"","PeriodicalId":177278,"journal":{"name":"Atlantis Highlights in Engineering","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125318866","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}