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Heri Wijanarko
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ANALISIS PENGARUH KEGUNAAN RING DIESEL PADA SALURAN BAHAN BAKAR SOLAR TERHADAP DAYA MESIN DIESEL Budi Harjanto; Heri Wijanarko; Sukahar
JURNAL MEKANIKASISTA Vol. 13 No. 1 (2025): NOVEMBER 2025
Publisher : PPM Sdirjianbang Akademi Militer

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.63824/jtmp.v13i1.388

Abstract

This study discusses the influence of an additional device installed on vehicles called the Diesel Ring. Based on existing facts, the performance of diesel engines today is still often questioned, especially in terms of power output. As we know, people currently demand greater power from diesel engines to achieve optimal results. This growing demand has led to the rise of many aftermarket devices on the market that claim to increase the power of diesel engines. Therefore, the Diesel Ring was selected as an alternative solution to address this issue, as it offers several advantages, such as the ability to enhance engine power. In addition, the diesel engine was chosen over the gasoline engine because diesel engines have several superior characteristics, including higher efficiency and longer engine lifespan. Based on the research results, it can be concluded that the installation of the Diesel Ring can improve the power output of a diesel engine, both at low and high engine speeds.
PERANCANGAN ULANG SISTEM SUSPENSI SHOCKBREAKER PADA KENDARAAN BIMANTARA NENGGALA Heri Wijanarko; Sugihandoko; Aryananta Lufti
JURNAL MEKANIKASISTA Vol. 13 No. 1 (2025): NOVEMBER 2025
Publisher : PPM Sdirjianbang Akademi Militer

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.63824/jtmp.v13i1.390

Abstract

To support the vehicle’s high operational activity, a redesign of the shock absorber suspension system on the Bimantara Nenggala vehicle is required. The goal is to make the shock absorber stronger and more durable when traversing rough road surfaces. This is because the Bimantara Nenggala vehicle, which is one of the official vehicles used at the Military Academy, has experienced frequent damage to its shock absorbers during use. The redesign was carried out by changing the steel wire diameter from 14 mm to 16 mm. The research results show that by increasing the wire diameter from 14 mm to 16 mm, the solid length of the spring changed from 56 mm to 96 mm. This modification also altered the number of coils from 2.5 to 4.5, and the spring deflection increased from 39.38 mm to 41.48 mm. This design demonstrates that using a 16 mm wire diameter provides better performance compared to a 14 mm wire diameter. Additionally, the resulting deflection and number of coils are improved compared to the original design.
ANALISA KEBUTUHAN DAYA LISTRIK PADA REAKTOR TRANSESTERIFIKASI MENGGUNAKAN GELOMBANG MIKRO Budi Harijanto; Heri Wijanarko; Sugi Handoko
JURNAL MEKANIKASISTA Vol. 13 No. 2 (2026): MEI 2026
Publisher : PPM Sdirjianbang Akademi Militer

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.63824/jtmp.v13i2.517

Abstract

Penelitian ini bertujuan untuk menganalisa kebutuhan daya listrik pada reaktor transesterifikasi menggunakan gelombang mikro dalam proses produksi biodiesel. Analisa dilakukan untuk mengetahui besar konsumsi daya listrik yang digunakan oleh setiap komponen reaktor, meliputi pompa, microwave, dan mikrokontroler selama proses transesterifikasi berlangsung. Metode penelitian dilakukan melalui pengukuran tegangan dan arus listrik pada setiap komponen, kemudian dihitung menggunakan persamaan daya listrik untuk memperoleh nilai konsumsi energi dan biaya listrik yang dibutuhkan. Hasil penelitian menunjukkan bahwa total kebutuhan daya listrik pada reaktor transesterifikasi sebesar 1478,63 Watt dengan total konsumsi energi sebesar 0,180 kWh untuk satu kali proses produksi. Biaya konsumsi listrik yang dibutuhkan sebesar Rp159,27, sedangkan total biaya produksi mencapai Rp3.709,27. Dari proses tersebut dihasilkan biodiesel sebanyak 680 ml dan gliserin sebanyak 100 ml dengan nilai hasil produksi sebesar Rp23.060. Berdasarkan hasil analisa, penggunaan reaktor transesterifikasi menggunakan gelombang mikro dinilai mampu menghasilkan proses produksi biodiesel yang efisien dengan kebutuhan daya listrik yang relatif rendah serta memberikan keuntungan secara ekonomis
Co-Authors Aryananta Lufti Aryananta Lufti Budi Harijanto, Budi Budi Harjanto Budi Harjanto D.Y.P. Sugiharto, D.Y.P. Lufti, Aryananta Sudijono Sudijono, Sudijono Sugi Handoko Sugihandoko Sugihandoko Sugihandoko Sukahar Sukahar Suparyana Titiek Herawati