394 research outputs found

    Engineering and Economic Analysis of the Synthesis of Fluoride Tin Oxide Film Production

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    The purpose of this study was to analyze the Fluoride Tin Oxide (SnO2/F) production in home-scale industry in engineering point of view and economic evaluation perspective. This material is considered due to its wide range of energy-related applications. Evaluation of the SnO2/F production in engineering perspective is conducted from the selection of the most economical process, mass balance calculation, to the adaptation in the commercially available apparatuses. Evaluation of the production from the economic point of view is done by calculating economic parameters: Gross Profit Margin, Internal Rate Return, Payback Period, Cummulative Net Present Value, Profitability Index, and Breakeven Point. In short of the production process, we used the pure tin (as the metal precursor) and ammonium fluoride (as the source of Flouride for doping). The engineering point of view showed that the process is able to produce conductive glass that can be used as the active electrode substrate in the solar cell. Economic evaluation showed that the process is profitable, confirmed by the positive values from all economic parameters. However, for some cases that are compared to the market and the local bank interest, the process is not attractive for investor. Thus, to make them attractive, support from government or corporate social responsibility is required

    Economic Perspective in the Production of Copper Nanowire using Amino Acids as Capping Agent

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    The purpose of this study is to evaluate the economic feasibility of making copper nanowire using amino acids as a capping agent. The evaluation was conducted from two perspectives, namely engineering analysis and economic evaluation using parameters such as gross profit margin, payback period, breakeven points, and net present value. An economic evaluation was also carried out comparing the use of amino acids Glycine, Lysine, Proline, and Alanine to find out which amino acids were more profitable in the production of copper nanowire. Furthermore, the evaluation is done by estimating the ideal situation and several other state assumptions such as changes in raw material prices, labor costs, and also income tax. From the results of this study, Glycine is known as the most profitable amino acid to be used in this process. In addition, by using Glycine as an ideal condition, based on the results of the evaluation of all parameters, this project is classified as prospective to do. Although further studies must be carried out to develop this project, this study can be the basis for developing new methods of making copper nanowire on a large scale

    Engineering and Economic Evaluation of The Production of Copper Nanoparticles (Cu-Nps) using Rongalite as Reducing Agent

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    The purpose of this study was to analyze the Economic Evaluation in the Production of Copper Nanoparticles (Cu-Nps) using Rongalite as Reducing Agent, an experimental method carried out in the perspective of engineering and economic evaluation. Technical analysis was performed using simple mass balance analysis, while economic evaluation was carried out using several economic parameters, including PBP, BEP, and CNPV. To support the analysis, all data is taken based on the available online shopping web. All calculations are carried out in ideal conditions for 20 years of production. Economic evaluation is carried out by giving 5 conditions (0%, 20%, 40%, 60%, and 80%) to the variable price variations in cost, sales, fixed cost, and labor. Economic evaluation analysis results show that price variations can affect the CNPV / TIC (%) curve to Life Time (year). In the variable cost, fixed cost, and labor variable price curve it is found that the condition of 0% is the highest curve compared to other conditions. While in sales price variations, the 80% condition is the highest curve. In conclusion, all price variation curves show profit. The benefits of this research are the large-scale economic evaluation data on Cu nanoparticle production

    Engineering and Economic Perspective in The Production of Cu Nano

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    The purpose of this study is to analyze the production of copper nanoparticles (Cu NPs) on an industrial scale in an engineering perspective and economic evaluation perspective. Energy is needed because of various energy related applications. Evaluation of Cu nanoparticle production in an engineering perspective is carried out from the selection of processes that are adapted to industrial scale, calculation of mass balance, to the adjustment of commercially available equipment. Evaluation of production from an economic point of view is done by calculating economic parameters: Gross Profit Margin, Internal Return Rate, Payback Period, Cumulative Net Present Value, Profitability Index, and Break Even Point. Briefly from the production process, we use Copper acetate hydrate (CuAc2.2H2O) (as a source of Cu), Tween 80 (polyoxyethylene-(80)-sorbitan monooleate) and ethylene glycol (as a reducing agent). The engineering viewpoint shows this process is capable of producing Cu nanoparticles which can be used as conductive nanoionic. Economic evaluation determines the process is beneficial, discussing with positive values ​​all economic parameters. However, for some variations this process is not profitable, so economic evaluation is needed

    The Effect of Socialization through Video Education The Effect of Food Maturity Level on Food Nutritional Content

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    This education aims to invite the public to recognize food nutrition and its potential dangers if errors occur in food processing, namely a form of educational video-based learning media, for people who live in Cigugur Girang, Parongpong, Indonesia. The method used is by using educational video dissemination media to 10 adolescent adults in Cigugur Girang with an age range of 17-28 years. Respondents consisted of 4 women and 6 men. The research was conducted through three stages; (1) pre-test before providing education to respondents; (2) education through video media; (3) post-test after providing education to respondents. The results of this study indicate an increase in respondents' knowledge after the implementation of their actions. The results of the study are based on the N-Gain value which is known to be the average value (%). Based on the test value of T (-4.205) < T table (2.023) which means the value of the questionnaire increased not significantly. Based on the completion of this research, it is hoped that more people be able to find out by knowing the level of food maturity and nutritional conten

    Healthy Breakfast Education to Prevent Anemia in Elementary School Children using PowerPoint Media

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    This study aims to educate about the importance of a healthy breakfast to prevent anemia in elementary school children. The study was conducted on 28 fourth-grade students at Hanjuang Samijaya Elementary School, Cihanjuang Village, Parongpong District, West Bandung, Indonesia. The method used is a quantitative research method with a pre-experimental design type one group pretest-posttest. The results showed that the average value of the pretest was 77.86 and the posttest was 89.29. The results of the comparison between the pretest and posttest showed an increase in respondents' knowledge after taking action in the form of education on the importance of having a healthy breakfast by consuming nutritious food. It is known that the average calculation result of N-Gain (Normalized Gain) is 58% (N-Gain > 40-55%). These results indicate that education about healthy breakfast is quite effective for elementary school students. This is indicated by the pretest score which is quite good, so students can know the importance of a healthy breakfast to prevent anemia. As for the results of the t-test calculation, it is known that T count (-8.132) < T table (1.703). That is, the students' post-test scores did not increase significantly. With the completion of this research, it is hoped that more students will know the importance of a healthy breakfast in an effort to prevent anemia

    Analisis Tekno-Ekonomi Produksi Nanopartikel Ni(OH)2 menggunakan kombinasi metode elektrokimia tegangan tinggi dan penambahan Na-Sitrat

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    Penelitian ini bertujuan untuk menyelidiki evaluasi ekonomi dari tegangan yang berbeda dalam produksi NP Ni(OH)2 disiapkan dengan metode elektrokimia dan penambahan Na – Sitrat. Nanopartikel Nikel Hidroksida merupakan salah satu jenis nanopartikel yang memiliki banyak kegunaan dan memiliki beragam aplikasi di dalam bidang industri. Dalam penelitian ini, evaluasi ekonomi dilakukan dengan menggunakan beberapa parameter ekonomi seperti BEP, PBP, CNPV, dan PI. Penelitian ini diharapkan dapat memperlihatkan gambaran skala industri tentang evaluasi ekonomi dan produksi NP nikel hidroksida dengan menggunakan metode elektrokimia tegangan tinggi dan penambahan Na - Sitrat sebagai agen pereduksi. Berdasarkan hasil analisis, proyek produksi nanopartikel nikel hidroksida menggunakan metode elektrolisis menggunakan tegangan tinggi dengan bahan baku utama logam nikel menunjukkan proyek yang prospektif dari perspektif ekonomi. Analisis PBP menunjukkan bahwa investasi menguntungkan setelah proyek berjalan selama lebih dari 2 tahun. Proyek ini dapat bersaing dengan standar pasar modal PBP karena biaya pemulihan investasi awal yang singkat. Metode elektrolisis bertegangan tinggi memiliki keuntungan, yaitu mudah dikembangkan, ekonomis, dan efisien. Dari analisis evaluasi ekonomi ini, dapat disimpulkan bahwa proyek ini layak untuk dijalankan

    Design of Reactor-Continuous Stirred Tank Reactor Type for the Production of Tin Oxide Nanoparticle (SnO2)

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    The aim of this study is to design a reactor with the CSTR type for SnO2 nanoparticles production. The method used is to perform computational analysis by calculating various specifications using Microsoft Excel. The results obtained are reactor volume is 1879.58 liters with a volume of liquid in the cylinder of 1397.51 liters. The design for the impeller specification is impeller length of 5.54 in, impeller width of 4.43 in, impeller height of 14.69 in from tank bottom with 1 number of stirrers and stirring power 8 Hp. The Re value obtained is 159345.80 which means that the type of impeller used is turbulent. Because the value of Re obtained is more than 2100, it indicates that a turbulent type is used as the impeller. This design is expected to become a standard for reference in designing a reactor to be more economical, effective, and have high reliability
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