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All Journal Prosiding Seminar Nasional Sains Dan Teknologi Fakultas Teknik Prosiding SNATIF JURNAL CRANKSHAFT Suluah Bendang: Jurnal Ilmiah Pengabdian Kepada Masyarakat Abdi Masya Teknika
Y. Yulianto Kristiawan
Sekolah Tinggi Teknologi Warga Surakarta
Agriculture, Biological Sciences & Forestry Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Education Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Other

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Journal : JURNAL CRANKSHAFT

 1 
PEMANFATAN LIMBAH BIOMASSA MENJADI SUMBER ENERGI ALTERNATIF suhartoyo suhartoyo suhartoyo; Yulianto Kristiawan
JURNAL CRANKSHAFT Vol 3, No 2 (2020): Jurnal Crankshaft Vol.3 No.2 September 2020
Publisher : Universitas Muria Kudus

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24176/crankshaft.v3i2.5208

Abstract

This research aims to produce renewable fuel from biomass waste which has been neglected and not yet used optimally. Cashew nuts are an example of biomass that is commonly found in Indonesia. Cashew kernel shells contain a lot of new oil only for coloring. Cashew nut shells are processed into renewable energy by making briquettes. The making of briquettes begins with the carbonization process at a temperature of 350oC for 5 hours. Then to improve the quality, it is mixed with waste in the form of small pieces and sawdust of teak wood. From the tests that have been carried out, it has resulted in more cashew nut shell charcoal content, the initial flame is easier but it is wasteful of fuel because it quickly turns into ash because the cashew seed shell contains a lot of phenolic compound oil. The calorific value greatly affects the fast and slow rate of boiling and the amount of briquette raw material needed. the more cashew nut shell charcoal, the more fuel it needs to boil 1 liter of water, because cashew nut shells burn quickly, so they quickly turn to ash. From the test, it was found that the variation in the consumption of the smallest and fastest use of fuel in boiling water was a variation of the briquette mixture of 15% cashew shell charcoal: 75% wood charcoal, boiling 1 liter of water only takes 18 minutes, and only requires 268 grams of briquettes. 
PENGARUH DURASI HARD CHROME TERHADAP KEKERASAN DAN STRUKTUR MIKRO BAJA KARBON S45C Bambang Hari Priyambodo; Yulianto Kristiawan
JURNAL CRANKSHAFT Vol 3, No 2 (2020): Jurnal Crankshaft Vol.3 No.2 September 2020
Publisher : Universitas Muria Kudus

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24176/crankshaft.v3i2.5212

Abstract

Baja karbon banyak digunakan untuk menjadi bahan dasar dari suatu komponen serta mempunyai banyak keunggulan. Namun demikian diperlukan peningkatan sifat fisis dan mekanis untuk memenuhi kebutuhan dalam penggunaannya. Salah satu cara meningkatkan sifat fisis dan mekanis tersebut dapat dilakukan dengan proses pelapisan dengan menggunakan metode electroplating. Penelitan ini bertujuan untuk mengetahui pengaruh variasi durasi pelapisan hard chrome terhadap kekerasan permukaan baja karbon S45C dan perubahan struktur mikro yang terbentuk. Pelapisan dilakukan dalam larutan elektrolit dengan kandungan asam kromat (CrO3) 350 gr/l dan asam sulfat (H2SO4) 1,2 ml/l. Anoda yang digunakan timah hitam (Pb) dan katoda baja S45C. Jarak antara anoda dan katoda yaitu 10 cm dengan tegangan 12 V. Hasil penelitian ini menunjukan bahwa semakin lama durasi pelapisan maka nilai kekerasannya semakin meningkat. Nilai kekerasan yang diperoleh dari baja S45C setelah dilakukan pelapisan hard chrome pada durasi pelapisan 30, 45 dan 60 menit yaitu 773,54 VHN, 865,8 VHN dan 980,2 VHN. Nilai kekerasan tertinggi sebesar 980,2 VHN pada durasi 60 menit. Kekerasan spesimen S45C setelah dilapisi hard chrome mengalami peningkatan sekitar 389% atau sebesar 980,2 VHN. Lapisan hard chrome yang diamati pada struktur mikro terbentuk secara merata.
Co-Authors Abda Abda Agus Jamaldi Arif Setyo Nugroho Bambang Hari Priyambodo Bambang Margono Budi Yunus Prameswara Chamim, Moch. Galuh Renggani Wilis Hermawan Susanto Lujeng Widodo, Lujeng Maju Binoto, Maju Suhartoyo Suhartoyo suhartoyo suhartoyo suhartoyo Suhartoyo Suhartoyo, Suhartoyo Suryono, Edy Tri Wahyu Setiawan