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Nozel : Jurnal Pendididikan Teknik Mesin
Published by Universitas Sebelas Maret
ISSN : -     EISSN : 2656713X     DOI : https://doi.org/10.20961/nozel
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NOZEL : Jurnal Pendidikan Teknik Mesin is a national forum for the publication and dissemination of original work which contributes to greater scientific understanding of the main disciplines underpinning the mechanical engineering and vocational education. This international journal is dedicated to the latest advancements in mechanical engineering and vocational education. The goal of this journal is to provide a platform for scientists and academicians all over the world to promote, share, and discuss various new issues and developments in different areas of mechanical engineering and vocational education. This journal is published in the online journal, which publishes research articles, reviews, and letters in all areas of mechanical engineering and vocational education. It is a blind peer-reviewed journal, aims to provide the most complete and reliable source of information on current developments in the field. The emphasis will be on publishing quality papers rapidly and available to researchers worldwide.
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Search results for , issue "vol 9, no 2 (2027)" : 1 Documents clear
Analisis Kelayakan Tekno-Ekonomi Menggunakan Metode Net Present Value (NPV) dan Internal Rate Of Return (IRR) pada Konversi Mesin Diesel 1-Silinder ke Biodiesel B20 Berbasis Limbah Minyak Jelantah pada Industri Tahu Skala UMKM Rama Abimanyu
Nozel : Jurnal Pendididikan Teknik Mesin Vol 9, No 2 (2027)
Publisher : Fakultas Keguruan dan Ilmu Pendidikan Universitas Sebelas Maret Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20961/nozel.v9i2.123384

Abstract

The reliance of the MSME-scale tofu industry on diesel fuel for single-cylinder diesel engines results in high operating costs and increased exhaust emissions. B20 biodiesel made from used cooking oil is a fuel alternative with the potential to reduce production costs, minimize waste, and support the adoption of renewable energy. This study aims to analyze the techno-economic feasibility of using B20 biodiesel derived from used cooking oil in single-cylinder diesel engines through a Systematic Literature Review (SLR) approach, adhering to the PRISMA principles. The reviewed literature consists of scientific publications from 2019 to 2025 that discuss the performance of diesel engines fueled by B20 biodiesel, the utilization of used cooking oil as a biodiesel feedstock, and technical-economic analyses using Net Present Value (NPV) and Internal Rate of Return (IRR). The results of the study indicate that the use of B20 biodiesel leads to a 1–3% decrease in effective power, a 2–5% decrease in thermal efficiency, and a 5–10% increase in specific fuel consumption. Nevertheless, these changes remain within the operational tolerance limits of SMEs and do not require significant engine modifications. From an environmental perspective, B20 biodiesel reduces CO, HC, and particulate emissions, although there is a tendency for NOx emissions to increase. From an economic perspective, a positive NPV and an IRR of 12–25%, which exceeds the MARR of 9.5%, indicate that converting diesel engines to B20 biodiesel is financially viable. Thus, the use of B20 biodiesel made from used cooking oil can serve as an economical, practical, and sustainable alternative energy solution for the MSME-scale tofu industry.

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