Browsing by Author "Nandiyanto, Asep Bayu Dani"

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Economic evaluation of zinc oxide nanoparticle production through green synthesis method using Cassia fistula plant extract
(جامعة الوادي - university of el oued, 2020-12-15) Fatmarin, Zahra; Utami, Fidya AhdiatiFidya Ahdiati; Girsang, Gabriela Chelvina Santiuly; Mulya, Sri Zahra Mina Setyani; Fentiana, Vina Dian; Putri, Yashinta Kirana; Nandiyanto, Asep Bayu Dani
The purpose of this study was to determine the feasibility of a zinc oxide (ZnO) manufacturing project through a green synthesis method using plant extracts Cassia fistula and then evaluate it from an engineering and economic perspective. Several economic evaluation parameters are analyzed to inform the potential production of ZnO nanoparticles, such as the length of time required for an investment to return the total initial expenditure (PBP), the condition of a production project in the form of a production function in years (CNPV), project benefits and so on. The results showed that the production of ZnO nanoparticles was very prospective. Technical analysis to produce 250 kg of ZnO nanoparticles per day shows the total cost of the equipment purchased to be 21,450.00 USD. PBP analysis shows that investment will be profitable after more than three years. This project can compete with PBP capital market standards because of the short investment returns. To ensure the feasibility of a project, the project is estimated from ideal conditions to the worst case in production, including labor, sales, raw materials, utilities, and external conditions.
Economic Perspective in the Production of Copper Nanowire using Amino Acids as Capping Agent
(جامعة الوادي - university of el oued, 2019-12-25) Dewi, Puspa Sari; Nandiyanto, Asep Bayu Dani
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.
Feasibility study based on economic perspective of cobalt nanoparticle synthesis with chemical reduction method
(جامعة الوادي - university of el oued, 2019-02-28) Nandatamadini, Fira; Karina, iSuci; Nandiyanto, Asep Bayu Dani; Ragadhita, Risti
Cobalt nanoparticle powder is synthesized by a chemical reduction method. In short, it is synthesized through reduction of cobalt ions that are dissolved in aqueous solution by Boronrelated solution with cationic surfactant. Cobalt nanoparticles have many applications, especially in the field of engineering. The successful project for the production of cobalt nanoparticles will produce opportunities that make it possible to advance technology in developing countries. For this reason, a feasibility study for the synthesis of cobalt powder nanoparticles is needed. This project has estimated ideal conditions for worst cases that will occur in production by adding several parameters: raw materials and sales. Evaluation of this feasibility study is using two parameters, which are economic analysis and evaluation techniques, including Gross Profit Margin (GPM), Cumulative Net Present Value (CNPV), Break-Even Point (BEP), Payback Period (PBP) this parameter to show potential profitability for the project. The IRR value of this project that it is not very promising, but all evaluations with various parameters have a positive impact. The project also uses the method of reducing metal salt an easy and the total cost of purchasing relatively inexpensive equipment will provide benefits in the project, and investors will attract this project.
Literature review: synthesis of CuO (Copper Oxide) nanoparticles for thermal energy storage
(جامعة الوادي - university of el oued, 2021-11-15) Satari, Clarysa; Sidqi, Rahmi Sabila; Putra, Febriyana; Putri, Silmi Ridwan; Nandiyanto, Asep Bayu Dani
This paper aims to provide a discussion of the methods used in the synthesis of CuO nanoparticles. A review of the CuO nanoparticle synthesis method was carried out from 65 articles from 2000 to 2021. The CuO nanoparticle synthesis methods described in this paper are electrochemical, sonochemical, sol-gel, biogenic, green synthesis, and hydrothermal methods. Each method used to synthesize CuO nanoparticles has advantages and disadvantages. Based on their advantages, electrochemical, sonochemical, green synthesis, and biogenic methods are environmentally friendly methods. Moreover, the hydrothermal and biogenic methods are simple methods with easy preparation. In its utilization, CuO nanoparticles can be used to divert heat energy. The addition of a volume of CuO nanoparticles into the nitrate salt can increase the thermal diffusivity and thermal conductivity used in solar power plants. Among the methods described, the hydrothermal method is the most effective and efficient technique. This is because the method is simple (without using any surfactant template), easy to vary the temperature, reactant concentration, and time variables on the growth of nanostructures. This paper is expected to provide some considerations regarding the synthesis method of CuO nanoparticles that can be used on an industrial scale based on the advantages of each method