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Journal : Serambi Engineering

Analisis Potensi dan Tantangan Pemanfaatan Bio Solar B30 pada Sistem Pertahanan Nasional Utomo, Wisnu; Aries Sudiarso; Sri Yanto
Jurnal Serambi Engineering Vol. 10 No. 3 (2025): Juli 2025
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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Abstract

Bio diesel B30 has been implemented as a strategic effort by the government to reduce dependence on fossil fuels and support the development of sustainable renewable energy. This research comprehensively discusses the technical characteristics of B30 bio diesel, the impact of corrosion on non-metallic components in the fuel system, engine combustion efficiency, and the logistical consequences of using bio diesel in the national defense system. The literature study method was used by processing and analyzing various references from accredited scientific journals and current national policies. The results of the analysis show that B30 bio diesel has great potential in supporting national energy security and reducing greenhouse gas emissions, but its implementation requires modernization of storage and distribution systems, comprehensive technical training for personnel, and adaptation of compatible engine technology. Proposed recommendations include phased implementation of pilot projects, development of supporting infrastructure, and integration of bio diesel policy in the defense green strategy to achieve optimal and effective sustainable energy targets.
Exploration of Cellulose-Based Matrix Materials: A Comparative Study in the Development of Radar Absorbing Materials for Military Applications Indriani, Sulfi; Sri Yanto; I Nengah Putra
Jurnal Serambi Engineering Vol. 11 No. 1 (2026): Januari 2026
Publisher : Faculty of Engineering, Universitas Serambi Mekkah

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Abstract

Exploring cellulose-based matrix materials for Radar Absorbing Materials (RAM) is a strategic way to advance defence technology, emphasising both technical effectiveness and environmental sustainability. This study uses a systematic literature review (SLR) approach to identify, evaluate and analyse previous research on the use of cellulose-based matrices compared with conventional materials such as epoxy, polyurethane (PU) and graphene. Comprehensive data was collected from indexed scientific databases (ScienceDirect, SpringerLink, Wiley and Google Scholar), covering publications from 2013 to 2025. The findings reveal that, when combined with graphene or carbon nanotube (CNT) fillers, cellulose aerogels can achieve reflection loss (RL) values as low as −70 dB, outperforming most conventional materials. Furthermore, carboxymethyl cellulose (CMC) with an ultrathin thickness of only 0.028 mm demonstrates high absorption efficiency of 98.2%. While limitations remain in terms of bandwidth and thermal stability, cellulose offers significant advantages, including low density, low cost, biodegradability and the availability of renewable resources. These results highlight cellulose as a highly promising alternative matrix material for RAM in military applications, while simultaneously supporting the green defence agenda and strengthening the resilience of the defence industry.