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All Journal Jurnal Sains & Teknologi Lingkungan JEECS (Journal of Electrical Engineering and Computer Sciences)
Diah Ayu Wulandari Sulistyaningrum
Malahayati University
Computer Science & IT Control & Systems Engineering Education Electrical & Electronics Engineering

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Optimization of Environmentally Friendly Material Selection for Automotive Mechatronics Components Using LCA Data and Multi‑Criteria Decision Making (MCDM) Ibrahim, Fauzi; Marjuni, Teuku; Febrina, Rina; Oktarina, Devi; Natalina, Natalina; Ergantara, Rani Ismiarti; Sulistyaningrum, Diah Ayu Wulandari
JEECS (Journal of Electrical Engineering and Computer Sciences) Vol. 10 No. 2 (2025): JEECS (Journal of Electrical Engineering and Computer Sciences)
Publisher : Fakultas Teknik Universitas Bhayangkara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54732/jeecs.v10i2.8

Abstract

The automotive industry faces an increasing demand for sustainable material selection as mechatronic components become more widespread in electrified vehicles. However, data-driven material selection approaches that simultaneously integrate environmental, economic, and technical criteria without laboratory experiments remain underdeveloped. This study addresses this gap by developing a computational framework that combines Life Cycle Assessment (LCA) with a Multi-Criteria Decision-Making (MCDM) approach, specifically the Technique for Order Preference by Similarity to Ideal Solution (TOPSIS) method, using Analytical Hierarchy Process (AHP)–based weights. The framework enables a transparent and reproducible evaluation of environmentally friendly materials for automotive mechatronic components. A case study on an actuator housing evaluates seven material alternatives: Al 6061 (die-cast), recycled Al (die-cast), Mg AZ91 (die-cast), PA6-GF30 (injection), PBT-GF30 (injection), PA12 (SLS 3D print), and bio-based PBT-GF30 (injection). The criteria include total global warming potential (GWP), cumulative energy demand (CED), water use, recyclability, cost, mass, stiffness index, thermal conductivity, and supply risk. Results show that recycled aluminum achieves the highest ranking (closeness coefficient = 0.939), followed by Al 6061 (0.727) and Mg AZ91 (0.547). A Monte Carlo analysis with 1,000 iterations confirms that recycled aluminum consistently remains the best option with 100% robustness under varying weighting conditions. The proposed workflow is replication-ready and can be directly integrated with established LCA databases such as GREET, Ecoinvent, or EPD, enabling engineers to perform sustainable and quantitative material decisions using only data and computational analysis.
Desain Inovasi Prototipe Teknologi Solar Distillation untuk Konversi Air Laut menjadi Air Bersih: Indonesia Wibowo, Dwiprayogo; Pagala, Muh. Imran; Ndibale, Wa; Ilham, Ilham; Sulistyaningrum, Diah Ayu Wulandari
Jurnal Sains & Teknologi Lingkungan Vol. 18 No. 2 (2026): SAINS & TEKNOLOGI LINGKUNGAN
Publisher : Teknik Lingkungan Universitas Islam Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20885/jstl.vol18.iss2.art2

Abstract

Clean water is a fundamental need for coastal and small island communities in Indonesia due to limited freshwater sources and high groundwater salinity caused by seawater intrusion. This study aims to design an innovative prototype of a solar-based seawater distillation technology as a low-cost and environmentally friendly solution. Technology adopts evaporation and condensation principles to convert seawater into clean water that meets quality standards. The distillation device is constructed using simple, corrosion-resistant materials, such as transparent glass, utilizing sunlight as the primary energy source, with condensed water droplets collected through an outlet pipe into a clean-water reservoir. The results demonstrate that the seawater distillation process is highly effective in separating seawater into clean water free from salt content, microorganisms, and impurities. The distillation process can reduce the salt content of seawater by up to 99% ppt and the pH level to 7.5. In addition, the hardness level (66.58 mg/L), nitrate (NO3⁻) (1.10 mg/L), nitrite (NO2⁻) (0.026 mg/L), iron (Fe) (<0.0034 mg/L), and microbiology (MPN Coliform and APM E. Coli = 0 MPN/CFU/100 mL) also decreased in accordance with the standard quality standards for clean water. The cost efficiency and ease of implementation of this technology offer a promising solution for clean water provision, supporting the achievement of sustainable development goals related to clean water and sanitation.
Co-Authors Ergantara, Rani Ismiarti Ibrahim, Fauzi Ilham Ilham Marjuni, Teuku Natalina Natalina Ndibale, Wa Oktarina, Devi Pagala, Muh. Imran Rina Febrina, Rina Wibowo, Dwiprayogo