Claim Missing Document
Check
Articles

Found 14 Documents
Search

PEMBUATAN TEMPAT ALAT TULIS KANTOR BERBAHAN DASAR FIBER MESOCARP PALM OIL (FMPO) Istianto Budhi Rahardja; Anwar Ilmar Ramadhan; Iphov Kumala Sriwana
Jurnal Pengabdian Masyarakat Teknik Vol 2, No 2 (2020): Jurnal Pengabdian Masyarakat Teknik (JPMT)
Publisher : Fakultas Teknik Universitas Muhammadiyah Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24853/jpmt.2.2.65-70

Abstract

Alat Tulis Kantor merupakan peralatan tulis yang diperlukan oleh setiap orang untuk melakukan pencatatan secara manual untuk proses administrasi dan dokumentasi pekerjaan. Alat Tulis Kantor yang berdimensi kecil dan realtif banyak, maka diperlukan alat penyimpanan yang mudah, murah, dan tahan benturan.  Serat buah kelapa sawit (Fiber Mesocarf Palm Oil) merupakan bahan baku yang mudah dibentuk sesuai yang diingkan dengan menambahkan perekat. Fiber Mesocarp dapat dibentuk menjadi tempat Alat Tulis Kantor dan memiliki value dari Fiber Mesocarp yang merupakan limbah padat hasil produksi Pabrik Minyak Kelapa Sawit (PMKS). 
Analisis briket fiber mesocarp kelapa sawit metode karbonisasi dengan perekat tepung tapioka Istianto Budhi Rahardja; Cenda E Hasibuan; Yudi Dermawan
SINTEK JURNAL: Jurnal Ilmiah Teknik Mesin Vol 16, No 2 (2022): SINTEK JURNAL
Publisher : University of Muhammadiyah Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24853/sintek.16.2.82-91

Abstract

This research aims to develop solid waste produced by oil palm plantation processing in the form of palm oil mesocarp fiber. Utilization which is usually only as boiler fuel in a Palm Oil Mill. Utilization of mesocarp fiber waste is to reduce waste, has a large heating value, and has a selling value. In the process of making mesocarp fiber briquettes, raw materials are provided, drying, charcoal (carbonization), filtering, forming 100 gr of charcoal with 150 ml, 200 ml, 300 ml of water solvent with tapioca starch adhesive (50 gr), and drying. The results of this research were briquettes with 150 ml solvent with a water content of 7.6%, an ash content of 22.52%, a burning time of 143 minutes, a burn rate of 0.21 %. The 200 ml solvent, namely: water content of 5.7%, ash content of 11.28%, burning time of 77 minutes, burning rate of 0.38 %. And in the 300 ml solvent, namely: water content of 5.2%, ash content of 16.84%, burning time of 67 minutes, burning rate of 0.36 %.
ANALISA BEBAN PENDINGIN PRODUK PADA CONTACT PLATE FREEZER TERHADAP KINERJA KOMPRESOR DI PT. TRIMITRA MAKMUR, TARAKAN, KALIMANTAN UTARA Samsi Samsi; Ade Hermawan; Teguh Binardi; M. Ilham; Istianto Budhi Rahardja
Jurnal Teknologi Vol 15, No 2 (2023): Jurnal Teknologi
Publisher : Fakultas Teknik Universitas Muhammadiyah Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24853/jurtek.15.2.207-216

Abstract

Contact plate freezer (CPF) is a refrigeration machine unit to freeze products that will certainly maintain product freshness. The cooling system is running smoothly, one thing that should be noted is the cooling load on the contact plate freezer. Cooling load is the amount of heat absorbed per unit of time. Refrigeration cycle at PT. Trimitra Makmur, using a combined refrigeration cycle (multi-stage cycle), using two vapor compression cycles using two single-stage compressors. The two compressors used have the same power of 55.92 kW. As for the main components of the refrigeration system at PT. Trimitra is prosperous, among others: Compressors, condensers, expansion valves, and evaporators. The cooling load on the contact plate freezer consists of product heat load, water heat load, internal heat load, and transmission heat load. In the contact plate freezer, the load of infiltration or heat from the outside air is not calculated because at the time of production the door of the contact plate freezer is closed tightly so the value of air exchange is very small and can be ignored. In this research, it was found that the average total load on contact plate freezer 1 was 23.07079 kW, so that the average total load on all three contact plate freezers at PT. Trimitra Makmur is 69.21237 kW. From the results of data collection and calculation, the COP value in the high-stage cycle is 4.33, so the power of the high-stage compressor used is 1/4.33 of the cooling capacity of the contact plate freezer. While in the booster cycle, a COP value of 6.49 is obtained, so the booster compressor power used is equal to 1/6.49 of the cooling capacity of the contact plate freezer.
ANALISIS LAJU KOROSIF FLUIDA CAMPURAN REFINERY BLEACHING DEODORIZE PALM (RBDP) OLEIN DAN ETHYLENE GLYCOL (EG) PADA BAHAN METAL Istianto Budhi Rahardja; Azhar Basyir Rantawi; Hendra Saputra; Dian Oktavia Pambudi
Jurnal Teknologi Vol 15, No 2 (2023): Jurnal Teknologi
Publisher : Fakultas Teknik Universitas Muhammadiyah Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24853/jurtek.15.2.267-274

Abstract

Corrosion to metal materials contaminated by liquid fluids is strictly avoided and maintained, which will result in damage and erosion of the material. Metal materials are very easy to corrosion when contaminated with fluids. The fluid mixture given is RBDP Olein from refined palm oil (CPO) and EG. The research method used was experimental, in which metal objects were immersed in the RBDP Olein & EG fluid mixture for a certain time (± 3 months), by weighing the mass before and after immersion in the fluid mixture. The results of the mass weighing test obtained that the reduction was not significant at all, namely: 0.01 gr (0.25%) for ± 3 months from the initial mass of the object with a corrosion rate value of 1.25605E-07 mm/y , as well as on the microstructure test of the object the workpiece has no defects, scale, or erosion that occurs on the workpiece, so that the workpiece does not a corrosive rate in the RBDP Olein & EG fluid.