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All Journal JURNAL CITRA WIDYA EDUKASI Jurnal Asiimetrik: Jurnal Ilmiah Rekayasa Dan Inovasi Journal of Applied Sciences and Advanced Technology
Yudi Dermawan
Politeknik Kelapa Sawit Citra Widya Edukasi
Agriculture, Biological Sciences & Forestry Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Economics, Econometrics & Finance Electrical & Electronics Engineering Engineering Industrial & Manufacturing Engineering

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Mechanical Properties of Particle board from Empty Palm Fruit with Polyester Resin Adhesive Istianto Budhi Rahardja; Hayya Afifah; Yudi Dermawan; Ery Diniardi; Anwar Ilmar Ramadhan; Januar Parlaungan Siregar
Journal of Applied Sciences and Advanced Technology Vol 4, No 1 (2021): Journal of Applied Sciences and Advanced Technology
Publisher : Faculty of Engineering Universitas Muhammadiyah Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24853/jasat.4.1.35-42

Abstract

The need for particleboard in Indonesia is increasing every year. Particleboard is usually made of wood that comes from the forest so it has a bad effect and forest products will decrease over time. To overcome this problem, new knowledge is created that can be done. The new knowledge is like utilizing empty palm oil bunches for particle board material to replace wood raw materials. Particleboard is usually made of wood or other lignocellulosic materials such as oil palm empty bunches. The empty fruit bunches that have been made will be mixed with polyester resin as an adhesive. This study examines the effect of the percentage of polyester resin adhesive used, namely 90%, 75% and 60%. The process of making particle board starts with the preparation of raw materials such as palm empty fruit bunches and polyester resin. For empty bunches fiber used is 1 cm long. After the particle board is made, a hardness test is carried out using a durometer with the ASTM D2240 standard.
Paving Block Investigation Using Waste Plastic, Used Oil, And Styrofoam with Different Variables St. Nugroho Kristono; Muhammad Malik Arifandi; Yudi Dermawan; Istianto Budhi Rahardja; Ahmad Mahfud
Journal of Applied Sciences and Advanced Technology Vol 4, No 1 (2021): Journal of Applied Sciences and Advanced Technology
Publisher : Faculty of Engineering Universitas Muhammadiyah Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24853/jasat.4.1.1-6

Abstract

Paving block is a composition of building materials made from a mixture of portlandcement or similar hydraulic adhesives, which are components of building materials that are very commonly used. But besides that, the dependence on the use of cement as an adhesive for Paving Blocks is still high. Therefore, the solution taken is to use waste plastic, Styrofoam, and used oil as materials for making Paving Blocks. Based on the results of data processing, it can be concluded that the manufacture of paving blocks using a mixture of plastic, used oil, and styrofoam has several stages, namely the stages of preparing tools and materials, taking and collecting plastic waste, used oil , and styrofoam, heating stages, mixing stages, the printing stage, the release stage and the drying stage, and the laboratory testing stage. This study uses 6 comparisons of mixed materials. The results of the trial of making paving blocks using a good mixture of plastic waste and used oil, namely with a composition of 67%: 33% with an average compressive strength of 63.2 MPa and water absorption capacity of 2.4% entered into quality A used for roads while paving blocks with plastic waste materials, used oil, and styrofoam have the best compressive strength value, which is 26.0 MPa with a composition of 40%:50%:10% and the absorption power obtained is 5.2%. B quality is used for parking lots. 
PEMANFAATAN PANAS BUANG BOILER MINI MENJADI LISTRIK DENGAN MENGGUNAKAN PELTIER ELEMENT (PE) Klisman Lumban Batu; Yudi Dermawan; Istianto Rahardja
Jurnal Asiimetrik: Jurnal Ilmiah Rekayasa & Inovasi Volume 2 Nomor 1 Tahun 2020
Publisher : Fakultas Teknik Universitas Pancasila

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (926.213 KB) | DOI: 10.35814/asiimetrik.v2i1.1238

Abstract

Thermoelektrik adalah Teknologi yang bekerja dengan mengkonversi energi panas menjadi energi listrik secara langsung. Pembangkit Thermoelektrik bekerja berdasarkan efek seebeck dimana jika terdapat dua buah material atau lempeng logam yang tersambung pada lingkungan dengan suhu yang berbeda maka akan menimbulkan aliran arus listrik didalam material tersebut. Penelitian ini bertujuan untuk memanfaatkan panas buangan menjadi aliran listrik dengan menggunakan silencer knalpot, 2 buah elemen Peltier TEG SP1848 21745 SA, dan boiler mini sebagai sumber panas pengujian alat. Hasil pengujian menunjukkan bahwa dengan 2 buah elemen Peltier TEG SP1848 21745 SA yang disusun secara pararel menghasilkan arus maksimum 35,7 mA dan temperatur berbanding lurus dengan aliran arus listrik dan dapat dinyatakan dalam analogi aliran listrik Hukum Ohm II dimana . Metode Penelitian yang dilakukan dengan metode eksperimental. Pengujian dilakukan di Workshop Politeknik Kelapa Sawit Citra Widya Edukasi dengan waktu pengujian selama 10 menit dan pengambilan data setiap 1 menit.
Pengaruh Program Waktu Perebusan pada Horizontal Sterilizer Pabrik Kapasitas 30 Ton TBS/Jam terhadap Unstripped Bunch (USB), Fruit Loss in Empty Bunch (FEB) dan Empty Bunch Stalk (EBS) Istianto Budhi Rahardja; Yudi Dermawan; Muhammad Soleman
JURNAL CITRA WIDYA EDUKASI Vol 10 No 1 (2018): JCWE Edisi April 2018
Publisher : Politeknik Kelapa Sawit Citra Widya Edukasi

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (939.745 KB)

Abstract

Process of sterilizing fresh fruit bunches (FFB) in SOGM Palm Oil Mill (POM) uses automation method, where the opening and closing of the inlet steam valve, exhaust valve and condensate valve based on predetermined time. There are three types of sterilizing program used, ie 84 minutes, 87 minutes and 91 minutes. In order for the sterilizing process to obtain time efficiency and also get the best result, then you should choose one of the best of the three. The purpose of this research is to know the effect of sterilizing time program on Unstripped Bunch (USB), Fruit Loss in Empty Bunch (FEB) and Empty Bunch Stalk (EBS). The method used in this research is to experiment directly to know its influence. The result showed that the length of sterlizing time has a negative effect on USB and FEB, which means the longer the sterilizing time will be the smaller percentage of USB and FEB; and positive effect on EBS, which means the longer the sterilizing time will be the higher the percentage of EBS.
Penggunaan Scale Buster pada Air Umpan Oil Cooler Turbin di PT Unggul Widya Teknologi Lestari Yudi Dermawan
JURNAL CITRA WIDYA EDUKASI Vol 10 No 1 (2018): JCWE Edisi April 2018
Publisher : Politeknik Kelapa Sawit Citra Widya Edukasi

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (681.492 KB)

Abstract

This research discusses the process of scale formation in the oil cooler, which is the lubricating oil system in the steam turbine generating power plant in the palm oil mill. This research was conducted on 15 – 25 May 2015 at PMKS Agribaras. Data collection is done through observation and literature study. The discussion is done by descriptive analysis. The results showed that the cause of scale on turbine oil cooler is because the oil cooler feed water has an average pH of 6.40 which means water in acidic conditions. Scale buster consists of several components, namely PTFE Teflon, dry contact anode, and cavitation chamber that helps in water treatment process. The scale prevention process that occurs in the scale buster, namely the breakup of water molecules caused by cavitation chamber components. The split molecule is ultimately bonded by the atomic nucleus of the particles produced from the zincum element (Zn) capable of removing adhesive properties on the constituent elements of water.
Efisiensi dan Efektivitas Penggunaan Mesin Curito sebagai Alat Penghancur Bahan-bahan yang Digunakan untuk Operasional di Perkebunan Kelapa Sawit Rio Dwi Fernando; Toto Suryanto; Aang Kuvaini; Yudi Dermawan
JURNAL CITRA WIDYA EDUKASI Vol 8 No 3 (2016): JCWE Edisi Desember 2016
Publisher : Politeknik Kelapa Sawit Citra Widya Edukasi

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (975.416 KB)

Abstract

The purpose of this study was to get crushing tool tufts fertilizer and provision of material the road for operation fertilizing and the road that can add work performance, get efficiency and effectiveness instrument curito of the operational fertilizing and provision of material the road in the palm oil plantation. Method to research this is the method approach design in general namely approach the functional architecture. Shredder fertilizer work in a radial manner with mounted a screw to enumerate smoking fertilizer which has been hardened. Crushing is done in tube machines and the final step in process is being away who next in apply them to garden palm oil. Effective capacity rate are 191.3 kg/hour for tufts fertilizer urea, 58 kg/hour for brick and 120 kg/hour for adobe.
Identifikasi Konsumsi Energi Listrik di Pabrik Pengolahan Kelapa Sawit Manis Mata (Studi Kasus di PT Harapan Sawit Lestari Kalimantan Barat) Yudi Dermawan
JURNAL CITRA WIDYA EDUKASI Vol 4 No 2 (2012): JCWE Edisi Nopember 2012
Publisher : Politeknik Kelapa Sawit Citra Widya Edukasi

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (649.396 KB)

Abstract

Penelitian ini dilaksanakan pada tanggal 1 April - 6 Mei 2011 di pabrik kelapa sawit PT Harapan Sawit Lestari dengan aktivitas keseharian di PKS Manis Mata yang berada di Kecamatan Manis Mata, Kabupaten Ketapang, Propinsi Kalimantan Barat. Tujuan penelitian ini adalah untuk mengidentifikasi faktor-faktor penyebab tingginya konsumsi energi listrik di Pabrik Pengolahan Kelapa Sawit Manis Mata (PT. Harapan Sawit Lestari). Penelitian ini dilakukan dengan menggunakan metode Observasi Lapangan secara langsung, yaitu dengan melakukan pengamatan terhadap operasional di kamar mesin dan beban listrik yang terbaca pada ampere-meter, kW-meter, kWh-meter di panel, tekanan inlet turbin di Pressure Gauge. Hasilnya diperkuat dengan metode wawancara dan studi literatur. Berdasarkan hasil penelitian yang telah dilakukan terlihat bahwa faktor penyebab konsumsi listrik tinggi yaitu ketersediaan daya pembangkit aktual yang dihasilkan Turbin sebesar 1548 kW lebih rendah dari kebutuhan beban aktual ditanggung rata-rata sebesar 1632 kW. Sehingga Generator digunakan selama operasional proses pengolahan di pabrik untuk menanggung kekurangan daya.
Sabun Cair Berbahan Dasar Olein Kelapa Sawit dengan Penambahan Ektrak Bandotan (Ageratum conyzoides L.) Hendra Saputra; Yudi Dermawan; Sari Laras Wati
JURNAL CITRA WIDYA EDUKASI Vol 11 No 3 (2019): JCWE Edisi Desember 2019
Publisher : Politeknik Kelapa Sawit Citra Widya Edukasi

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Abstract

Palm oil contains oleic acid which acts as an antimicrobial in soap. The oil used is olein from palm oil which has been refined from the degumming, bleaching, deodorizing and filtering process to separate olein and stearin. Liquid soap is made from the reaction process between vegetable fats and potassium bases by the saponification process. The study purpose to determine the manufacture of olein-based liquid soap with the addition of Ageratum conyzoides extract and determine the optimal formulation for additional extracts in according with the Indonesian National Standard. Liquid soap is made as much as 4 variations of the addition of Ageratum conyzoides extract (0,5 ml, 7 ml and 9 ml). Testing the quality of liquid soap that has been made is adjusted to SNI 06-4085-1996 which includes observations of organoleptic, pH, free fatty acids, specific gravity of soap, moisture content, free alkali and high foam. The result of olein-based soap with the addition of Ageratum conyzoides extract can be made into liquid soap with an optimal formulation of 5 ml of Ageratum conyzoides extract. Based on the result of research and comparison with SNI, liquid soap with the addition of 5 ml of Ageratum conyzoides extract has the aroma of soy milk, pH according to skin pH 10.22, specific gravity of soap 1.0109 g/ml, free alkali 0.1485%, water content 78.4997%, high foam 88.1282 mm, and value of free fatty acids 0.1191%.
Pembuatan Briket dari Fiber Kelapa Sawit Berperekat Tepung Tapioka dengan Metode Pembakaran Biasa (Karbonisasi) Istianto Budhi Rahardja; Cenda E. Hasibuan; Yudi Dermawan; St Nugroho Kristono
JURNAL CITRA WIDYA EDUKASI Vol 13 No 1 (2021): JCWE Edisi April 2021
Publisher : Politeknik Kelapa Sawit Citra Widya Edukasi

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Abstract

This research discusses briquettes making from palm fiber with tapioca starch adhesive by using the conventional burning method (carbonization). Briquettes can be used for household need as well as in other forms of alternative energy, and the alternative energy produced is expected to have quality and be made from renewable raw materials and have cheap economic value. Briquettes are solid fuel derived from organic waste. The purpose of this research was to determine the effect of multiple solvents on the physical properties and quality of the resulting briquettes. This research was conducted at the Chemical Laboratory of Palm Oil Polytechnic, Citra Widya Edukasi on 20202, 11th December – 2021, 9th August. The stages of the research ie: 1) cleaning and drying (12 hour oven at 105° C); 2) carbonization for ± 1.5 hours; 3) powder (sieve 60 mesh); 4) kneading 100 gr with 150 ml 200 ml and 300 ml solvent; 5) printing (paralon) D: 6.5 cm and h: 2.5 cm; and 6) testing of moisture content, ash content, burn time and burn rate. The result showed that in the 300 ml solvent, the resulting briquettes had a lower density than the other samples, and the weight of the briquettes produced in this sample was lighter, and also had large pores.
Co-Authors Aang Kuvaini Ahmad Mahfud Anwar Ilmar Ramadhan Cenda E. Hasibuan Ery Diniardi Hayya Afifah Hendra Saputra Istianto Budhi Rahardja Istianto Rahardja Januar Parlaungan Siregar Klisman Lumban Batu Muhammad Malik Arifandi Muhammad Soleman Rio Dwi Fernando Sari Laras Wati St Nugroho Kristono St. Nugroho Kristono Toto Suryanto