Article Per Year (5 Year)
p-Index From 2021 - 2026
0.817
P-Index
This Author published in this journals
All Journal JURNAL SIMETRIK Jurnal Riset Teknologi Pencegahan Pencemaran Industri INJECTION: Indonesian Journal of Vocational Mechanical Engineering Bakti Hayati
Ruchiyat, Asep
Unknown Affiliation
Agriculture, Biological Sciences & Forestry Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Mechanical Engineering Social Sciences

Published : 5 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 5 Documents
Search

 1 
PENGARUH VARIASI TEMPERATUR HEAT TREATMENT TERHADAP KEMAMPUKERASAN BAJA KOMERSIL DENGAN METODE JOMINY TEST Susilo, Irwan; Yusuf, Yusuf; Ruchiyat, Asep
Injection: Indonesian Journal of Vocational Mechanical Engineering Vol 1 No 1 (2021)
Publisher : Pengelola Jurnal Politeknik Negeri Ketapang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58466/injection.v1i1.1346

Abstract

Hardenability is the ability of a material to be hardened to a certain depth by means of heat treatment to formmartensite in the cooling process to achieve a certain hardness. One of the hardenability testing methods is theJominy Test. The specimen is heated at the specified temperature, then cooled by spraying water at one end. Aftertesting with the Jominy test apparatus, its hardness was measured using the hardness test equipment.The testingof Jominy is based on ASTM standard A255. Testing using specimens with a length of 100 mm, diameter25.4 mm as much as 9 pieces. Hardness is measured by the Rockwell Hardness Test method. The test result onspecimen 1 with a final temperature of 700 °c resulted in an average hardness value of 45.51 HRB, on specimen9 with a final temperature of 1100 °c amounting to 47.32 HRB. The higher the end temperature of the heating,the hardness value produced will be relatively higher. The highest average hardness value is in specimen 7 witha heating temperature of 1000 °c by 47.48 HRB.
PENGARUH KARBURASI ARANG TERHADAP KEMAMPUKARESAN BAJA ST 42 DENGAN METODE JOMINY Yusuf, Yusuf; Ruchiyat, Asep; Helanianto, Helanianto
Injection: Indonesian Journal of Vocational Mechanical Engineering Vol 2 No 2 (2022)
Publisher : Pengelola Jurnal Politeknik Negeri Ketapang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58466/injection.v2i2.1479

Abstract

Hardenability is the ability of a material to harden to a certain depth utilizing heat treatment to form martensite upon cooling to achieve a certain hardness. The hardness of a metal, especially steel, can be modified without adding alloying elements and is done by heat treatment. Steel's hardenability value is strongly influenced by the carbon content (carburizing) in the steel structure. Increasing the hardness of a material can be done by adding carbon to the object's surface during heat treatment. The Rockwell Hardness Test method measures the surface of the hardness. The test results on the specimens showed that the carburizing process of each specimen increased the hardness of the surface of the specimen. The distribution of hardenability values ​​is close to a linear line, namely the heat treatment temperature 900oC.
Pembinaan dan Pengembangan Produk Hasil Pertanian melalui Metode Packaging Modern Epriyandi, Epriyandi; Helanianto, Helanianto; Polonia, Betti Ses Eka; Rahmadi, Hairian; Yusuf, Yusuf; Marjuki, Ismael; Anhar, Muh; Ruchiyat, Asep; Nurmayasari, Dewi
Bakti Hayati: Jurnal Pengabdian Indonesia Vol. 3 No. 1 (2024)
Publisher : Jurusan Biologi FMIPA Universitas Cenderawasih

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31957/bhjpi.v3i1.3771

Abstract

Local farmers in Sungai Awan Kanan Village are one of the supporting sources of food for consumers around Ketapang Regency, West Kalimantan. With traditional skills they are able to produce agricultural products that can compete with modern agriculture. They always produce fresh vegetables every day for family and community needs. Behind it all, there are several weaknesses that they currently feel, including; cheap prices at the collector level (prices become a game for certain parties), fresh vegetables cannot last long due to limited supporting facilities. Meanwhile, on the other hand, there are opportunities that actually open the chain of their problems, such as; the emergence of supermarkets and modern markets that require supplies. The aim of implementing this community service is to encourage the strength of local communities in developing agricultural products, especially vegetables, through packaging methods. The community is facilitated by providing modern packaging for the agricultural products they get. With this community service program in the form of training regarding the development of agricultural products through packaging, it is hoped that it can increase public knowledge about how to increase income through packaging methods applied to agricultural products. After the training, almost all training participants realized that the packaging methods applied to agricultural products could have a good effect on the sales of their agricultural products. 
Study of The Influence of Extract Cocoa Pods (Theobroma Cacao) as a Preservative Ingredient on Mahoni Woods (Swietenia Mahogany) Through Cold Soaking on Mechanical Properties Anhar, Muh; Yusuf, Yusuf; Ruchiyat, Asep; Suhelmidati, Etri; Putra, Syarif Abdian; Danial, Danial; Yetri, Yuli
Jurnal Riset Teknologi Pencegahan Pencemaran Industri Vol. 15 No. 2 (2024): November
Publisher : Balai Besar Standardisasi dan Pelayanan Jasa Pencegahan Pencemaran Industri

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21771/jrtppi.2024.v15.no2.p50-62

Abstract

An attempt has been made to extend the service life of mahogany wood (Swietenia mahogany) by preserving it. The purpose of this study was to determine the mechanical properties of mahogany wood after cold soaking with preservatives of cocoa pods extract (Theobroma cacao). This research uses an experimental method of cold soaking which is carried out in the Material Testing Laboratory of the Mechanical Engineering Department of Padang State Polytechnic. The preservation process used cacao pod extract preservative solution at concentrations of 0%, 3%, 6%, 9%, 12%, and 15%. The observed responses were the preservative retention values and mechanical properties (compressive strength parallel to the fiber direction, flexural strength, and surface hardness) of the wood. The preservation method applied was cold soaking for 120 hours. The increase in retention value was directly proportional to the increased concentration of extract added. The improved properties of wood (compressive strength in the grain direction and flexural strength) also increased with increasing extract concentration. The results obtained showed that the highest value was obtained at a 15% concentration of the added extract with a retention of 7.6078 kg/cm2, a compressive strength parallel to the fiber of 227.92 kg/m2, and a flexural strength of 387.82 kg/m2. This data shows that cocoa pods extract has the potential to be used as an environmentally friendly wood preservative.
PENGARUH FREKUENSI SISTEM TERHADAP KONSUMSI BAHAN BAKAR PADA BEBAN PUNCAK MESIN RUSTON 16 RKC Ruchiyat, Asep
JURNAL SIMETRIK Vol 10 No 1 (2020): Jurnal Simetrik (Sipil, Mesin, Listrik)
Publisher : Pusat Penelitian dan Pengabdian Kepada Masyarakat (P3M) Politeknik Negeri Ambon

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31959/js.v10i1.376

Abstract

Permintaan daya listrik meningkat dengan seiring bertambahnya penduduk dan penggunaan alat-alat elektronik sebagai kebutuhan primer. Pemakaian daya bertambah karena penggunaan alat elektronik seperti penanak nasi, AC, kipas angin, dan pompa air yang membuat berlebihnya daya pada beban puncak. Hal ini juga mempengaruhi pemakaian bahan bakar yang kurang efisien. Tujuan dari penelitian ini adalah untuk mengetahui pengaruh frekuensi sistem terhadap penggunaan bahan bakar pada mesin Ruston 16 RKC pada saat beban puncak di PT. PLN (Persero) area di PL. Sukaharja Kabupaten Ketapang Kalimantan Barat. Persentase kenaikan sfc pada tanggal 25 Agustus 2018 mencapai 0,011 %/kWh. Rata-rata penggunaan pada bulan Agustus dengan jam operasi 24 jam pada mesin ruston adalah 0,271 â„“/kWh. Rata-rata persentase penggunaan bahan bakar pada rata-rata penggunaan sfc bulan Agustus 2018 sebesar 0,0106 %/kWh. Jumlah Sfc pada tanggal 17 Juli 2018 adalah 0,322222 â„“/kWh. Operasi pada beban puncak mengalami kenaikan pemakaian bahan bakar sebesar 0,0126 %/kWh. Selisih pada 17 Juli 2018 dan 25 Agustus 2018 sebesar 0,038928 â„“/kWh. Rata-rata persentase kenaikan penggunaan bahan bakar pada bulan Juni yaitu 0,0113 %/kWh. Rata-rata persentase kenaikan penggunaan bahan bakar pada bulan Juli yaitu 0,0112 %/kWh. Frekuensi normal yang telah ditetapkan oleh Unit Pengatur Beban (UPB) yaitu 50.00 Hz. Namun terkadang UPB menaikkan frekuensi sistem hingga 50.20 Hz yang mempengaruhi pengoperasian mesin semakin banyak dan pemakaian bahan bakar yang banyak akibat adanya beban kejut. Apabila frekuensi sistem terlalu rendah maka akan merusak peralatan rumah tangga yang digunakan konsumen. Kondisi yang terjadi di Kabupaten Ketapang ini lebih tinggi daya nyata yang dibangkitkan daripada daya nyata yang dikonsumsi, sehingga seharusnya mesin dapat dimatikan satu atau dua unit tapi tetap beroperasi. Sehingga hal ini menjadi faktor pemborosan penggunaan bahan bakar, mesin harus tetap beroperasi walaupun tanpa beban maksimal hanya untuk mempertahankan frekuensi sistem.
Co-Authors Danial - Epriyandi, Epriyandi Hairian Rahmadi Helanianto, Helanianto Ismael Marjuki Muh Anhar NURMAYASARI, DEWI Polonia, Betti Ses Eka Putra, Syarif Abdian Suhelmidati, Etri Susilo, Irwan Yuli Yetri Yusuf Yusuf