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All Journal Jurnal Energi Dan Manufaktur Jurnal Ilmiah Teknik Mesin BENTANG : Jurnal Teoritis dan Terapan Bidang Rekayasa Sipil DEVOSI An-Nizam: Jurnal Bakti Bagi Bangsa
Yopi Handoyo
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Religion Agriculture, Biological Sciences & Forestry Arts Humanities Automotive Engineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Energy Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mechanical Engineering Physics Social Sciences Transportation Other

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EFEKTIVITAS PENGGUNAAN ECONOMIZER TERHADAP PERFORMA BOILER FIRE TUBE Handoyo, Yopi; Irawan, Gandi
Jurnal Ilmiah Teknik Mesin Vol 11 No 2 (2023): JURNAL ILMIAH TEKNIK MESIN
Publisher : Universitas Islam 45 Bekasi, Fakultas Teknik, Jurusan Teknik Mesin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33558/jitm.v11i2.7104

Abstract

Proses Oven Painting, dimana diketahui bahwa temperatur gas buang pada cerobong (chimney) yang dihasilkan dari ketel uap masih tinggi antara 200-300°C. Temperatur gas buang yang masih tinggi dapat dimanfaatkan kembali untuk memanaskan air umpan pada feedwater. Dengan memanfaatkan kembali gas buang tentunya dapat menurunkan konsumsi bahan bakar. Salah satu metode perbaikan yang dapat dilakukan untuk memanfaatkan energi panas dari gas buang sisa pembakaran boiler adalah dengan pemasangan alat penukar kalor atau economizer. Tujuan penelitian ini yaitu mengetahui performa boiler dengan penggunaan economizer dan mengetahui konsumsi bahan bakar pada boiler. Metode eksperimen yang digunakan dalam penelitian ini yaitu dengan energi panas dari gas buang sisa pembakaran boiler dengan pemasangan economizer. Performa Boiler Fire Tube menunjukan bahwa dengan penggunaan economizer mempunyai nilai efisiensi sebesar 89,29 %. Sedangkan tanpa penggunaan economizer mempunyai nilai efisiensi sebesar 81,67 %. Pengoperasian Boiler Fire Tube dengan penggunaan economizer pada beban penuh dapat menghemat konsumsi bahan bakar sebesar 18 m³/h dengan kebutuhan bahan bakar per jam nya sebesar 271 m³/h.
LITERASI DIGITAL SISTEM PEMBAYARAN QRIS BAGI USAHA MIKRO, KECIL, DAN MENENGAH DI DESA CIJENGKOL Radiatus Solihin, Fikri; Handoyo, Yopi; Rahmawati, Rafika
An-Nizam Vol 4 No 2 (2025): An Nizam: Jurnal Bakti Bagi Bangsa
Publisher : Universitas Islam 45 Bekasi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33558/an-nizam.v4i2.11521

Abstract

In the rapidly advancing digital era, the use of digital payment technologies has grown significantly, including in Indonesia, with notable innovations such as the Quick Response Code Standard (QRIS) launched by Bank Indonesia in 2019 to facilitate payment transactions. The adoption of QRIS as a digital payment method in Indonesia has increased substantially; however, it also raises security and privacy challenges, such as phishing and data theft. This Community Service Program aims to enhance knowledge regarding the QRIS payment method while promoting sustainable business digitalization. The program focuses on the implementation of QRIS in Cijengkol Village by identifying challenges faced and developing strategies for sustainable adoption, with the expectation of providing insights into effective strategies for supporting financial inclusion in rural areas through digital payment technologies. This PKM also explores the relationship between financial literacy levels and the income of micro, small, and medium enterprises (MSMEs), with particular attention to the ease of the QRIS system as a driver of improved transaction efficiency and market access, which ultimately has the potential to increase MSME income. The implementation methods include education and socialization concerning the benefits, ease of use, and security of QRIS transactions. Through this program, it is expected that QRIS adoption, transaction efficiency, and financial inclusion among MSME actors in Cijengkol Village will improve. The outcomes of this activity highlight the importance of digital payment systems for MSMEs, particularly in Cijengkol Village. MSME actors were also provided with practical guidance on generating QR codes for payments via QRIS through platforms such as GoPay, ShopeePay, DANA, and others.
Analisis Performa Cooling Tower LCT 400 Pada P.T. XYZ, Tambun Bekasi Yopi Handoyo
Jurnal Ilmiah Teknik Mesin Vol 3 No 1 (2015): JURNAL ILMIAH TEKNIK MESIN
Publisher : Universitas Islam 45 Bekasi, Fakultas Teknik, Jurusan Teknik Mesin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33558/jitm.v3i1.345

Abstract

Tujuan penelitian adalah untuk mengetahui performa cooling tower LCT 400 pada PT., XYZ apakah masihlayak untuk digunakan untuk proses pendinginan mesin kompresor dan air dryer.Metode penelitian yangdigunakan adalah metode statistik deskriptif, dengan metode ini menguraikan suatu studi dokumen yangdilengkapi dengan gambar dan tabel yang berhubungan dengan proses performa cooling tower LCT 400 di PT.,XYZ. Kemudian dievaluasi apakah sudah sesuai dengan kondisi masa sekarang. Cara kerja cooling towerkhususnya tipe LCT 400 adalah dengan menggunakan prinsip counterflow air yang masuk ke cooling tower(water flow outlet) dipercikan dengan nozzle dari sprinkle head yang berputar diatas filler pvc. Lalu udara yangmasuk dari kisi-kisi samping mesin (air flow inlet) bertemu sepintas dengan air dari outlet disana terjadilahproses konveksi paksa. Hawa panas yang ada didalam air dibuang keluar bersamaan dengan udara (air flowoutlet) kemudian air jatuh seperti rintik-rintik air hujan dan tertampung di dalam water basin.Secara ringkasmetode ini dapat digunakan dalam melakukan tugas akhir, antara lain adalah: studi literatur, prosespengumpulan data, pengolahan data, dan analisis pembahasan cooling tower LCT 400 pada PT., XYZ semogadapat dilaksanakan dengan baik secara keseluruhan.
PENGARUH QUENCHING DAN TEMPERING PADA BAJA JIS GRADE S45C TERHADAP SIFAT MEKANIS DAN STRUKTUR MIKRO CRANKSHAFT Yopi Handoyo
Jurnal Ilmiah Teknik Mesin Vol 3 No 2 (2015): JURNAL ILMIAH TEKNIK MESIN
Publisher : Universitas Islam 45 Bekasi, Fakultas Teknik, Jurusan Teknik Mesin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33558/jitm.v3i2.350

Abstract

Investigations have been conducted on JIS S45C steel the results of Quenching and Tempering. Process ofQuenching is conducted in 880ºC with holding time 50 minutes, with cooling medias quench of oil and water,continue proses of Tempering is conducted in 560ºC with holding time 40 minutes. Testing conducted : Thechemical composition testing, macro strucktur testing, hardness testing, and metallografth testing.The chemicalcomposition testing shows that steel S45C in the medium carbon steel with the content carbon 0,45%. Thespeciment non heat treatment, average result of hardness section upper is 19,2 and section lower is 18,8HRcand micro struckur is pearlite and ferrite. The speciment heat treatment in 880ºC with quenching media of oil,average result of hardness section upper is 35,3 dan section lower is 31,6HRc and micro struktur is bainite andmartensite. The speciment with heat treatment in 880ºC with quenching media of water, average result ofhardness section upper is 43,5 dan section lower is 37,5HRc and micro struktur is bainite and martensitedominant. The speciment with heat treatment in 880ºC quenching media of oil and continue Tempering in 560ºCcooling media of water average result of hardness section upper is 26,8 dan section lower is 23,3HRc and microstruktur is bainite and martensite. The speciment with heat treatment in 880ºC quenching media of water andcontinue Tempering in 560ºC cooling media of water, average result of hardness section upper is 27,8 dansection lower is 26,6HRc, and micro struktur is bainite and martensite smooth.
ANALISIS PERFORMANCE BAN DENGAN ALAT DRUM TEST Yopi Handoyo
Jurnal Ilmiah Teknik Mesin Vol 2 No 1 (2014): JURNAL ILMIAH TEKNIK MESIN
Publisher : Universitas Islam 45 Bekasi, Fakultas Teknik, Jurusan Teknik Mesin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33558/jitm.v2i1.731

Abstract

Ban merupakan salah satu bagian penting dari sebuah kendaraan bermotor yang berfungsi meneruskan daya dorong dan pengereman, kontrol arah serta sebagai penyangga beban dari kendaraan tersebut berikut muatannya. Berdasarkan fungsi ban diatas maka sangat diperlukan adanya pengujian terhadap performanceban, agar ban yang dipakai dapat memenuhi fungsinya.Untuk mengetahui performance sebuah ban salah satu pengujiannya adalah dengan menggunakan alat uji drum test. Drum test adalah suatu alat atau mesin berbentuk drum dengan diameter 1.707m dan memeiliki permukaan rata yang sebagai prototype jalan raya (jalan tol ). Dengan temperatur ruang test 38º C ± 3º C. Berfungsi untuk menguji performance ban terhadap kecepatan ( speed ) dan beban ( load ). Analisis performance ban ini melakukan 4 jenis pengujian, diantaranya; pengujian high speed yaitu pengujian terhadap kecepatan, pengujian endurance yaitu pengujian terhadapbeban, pengujian bead fatique yaitu pengujian terhadap kekuatan bead terhadap velg dan yang terakhir adalah pengujian cord breaking up yaitu pengujian terhadap kerangka ban. Sebelum ban di uji dengan drum test ban harus melewati item check dimensi atau kaibo sebagai persyaratan untuk melakukan uji drum test.Dari data hasil pengujian drum test ban dapat diketahui performance apakah ban tersebut layak untuk di pakai dengan spesifikasi yang tertera pada ban tersebut atau tidak, dan dari hasil check kaibo dan drum test dapat diketahui korelasi antara dimensi ban dengan hasil uji performance ban tersebut.
PERANCANGAN ALAT UJI IMPAK METODE CHARPY KAPASITAS 100 JOULE Yopi Handoyo
Jurnal Ilmiah Teknik Mesin Vol 1 No 2 (2013): JURNAL ILMIAH TEKNIK MESIN
Publisher : Universitas Islam 45 Bekasi, Fakultas Teknik, Jurusan Teknik Mesin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33558/jitm.v1i2.735

Abstract

Perancangan dan pengujian impak merupakan analisa bahan untuk mengetahui ketangguhan atau kegetasan bahan terhadap beban tiba-tiba. Tujuan dari penulisan ini adalah mampu mendesain dan membuat alat uji impak tipe charpy, mengetahui mekanisme kerja, dan menganalisa performa alat sekaligus mengkalibrasinya berdasarkan energi impak spesimen. Metodologi yang diterapkan mempunyai tiga poin utama, yaitu perancangan konstruksi, proses pabrikasi, dan perhitungan konstruksi.
OPTIMASI PENGARUH JUMLAH SIKAT PADA MESIN PENCUCI KACANG TANAH TERHADAP KEBERSIHAN VISUAL KULIT KACANG TANAH Tri Gesti Maharadhika; Yopi Handoyo
Jurnal Ilmiah Teknik Mesin Vol 6 No 1 (2018): JURNAL ILMIAH TEKNIK MESIN
Publisher : Universitas Islam 45 Bekasi, Fakultas Teknik, Jurusan Teknik Mesin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33558/jitm.v6i1.1902

Abstract

Peanut washers are useful for cleaning soil that sticks and can speed up the washing process inpeanut production. Peanut washers on the market have a fairly expensive price for small andmedium businesses so that it becomes a hindrance to have a peanut washing machine for smallentrepreneurs because it requires peanut washers at a cheap price by modifying used clotheswashing machines. In the modification of peanut skin washers to determine the optimalcleanliness of the use of the optimal number of brush variations from the results of washingpeanuts, use a GUI with image processing techniques looking for normalization of RGB valuesin Matlab Software. From image processing using RGB normalization value on matlab with freevariables using variations in the number of brushes 1, 2, and 3 pcs and 1 kg peanut-fixedvariables and 40 liters of water for 10 minutes to get the optimal use of 1 brush in experiment 2using 1 brush of 60% or 6 clean beans of 10 samples rather than 2 brushes and 3 brushesbecause on 2 and 3 brushes many nuts are stuck by the handle of the brush resulting from thevolume of water parallel to the brush angle so that it is not brushed.
ANALISIS MATERIAL BAJA ASTM A36 PADA DAUN PINTU AIR BENDUNG BEKASI DENGAN METODE SIMULASI BUILDING INFORMATION MODELING Mochamad Ubaedillah Fajri; Ahsan -; Yopi Handoyo
Jurnal Ilmiah Teknik Mesin Vol 6 No 2 (2018): JURNAL ILMIAH TEKNIK MESIN
Publisher : Universitas Islam 45 Bekasi, Fakultas Teknik, Jurusan Teknik Mesin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33558/jitm.v6i2.1927

Abstract

The operation of the intake gates of the Bulkhead Gates type weir is strongly influenced by the flowof irrigation water flow, the activity of regulating the flow rate is very important to be carried outin order to divide the amount of flow to the various regions it passes. This is generally done tomaintain the strength of the steel structure of the air intake door of the Bulkhead Gates type weir.Water flow rate with a certain capacity if there is a decrease in water flow discharge and theamount of discharge of water flow which increases dramatically in the rainy season. When theamount of water flow increases, the operation of the sluice structure experiences a very high load,the structure of the sluice has the elasticity of the material on the sluice leaves and also thesupporting steel structure. This is very risky if there is a sudden break or crack in the sluicestructure. In this research study using the Building Information Modeling (BIM) method using steelstructure modeling The intake gates of the Bulkhead Gates type weir as the basis of the research tofind the minimum and maximum loading influenced by the water flow discharge. Physically stellstructure The bulkhead gates type intake gates fulfill the loading requirements. This research usesASTM A36 Sheet Plate carbon steel material on sluice leaves which can provide accurate loadingpredictions on the simulation. a combination of variations in water level above the averagethreshold of TMA 18.98 masl with Q to SITB (m3/sec) with very heavy rainfall. BIM meodelingsimulation on the sluice gate can also effectively regulate discharge and also the threshold ofloading on the steel sluice structure. From the results of the simulation of the BIM method in thisstudy can be useful as a reference to the concept of steel structure in the building of the air intakedoor of the Bulkhead Gates type weir.
ANALISIS PENGARUH VARIASI MATERIAL CORE TERHADAP KUALITAS NIPPLE Moh Rofi Julian; Yopi Handoyo
Jurnal Ilmiah Teknik Mesin Vol 8 No 2 (2020): JURNAL ILMIAH TEKNIK MESIN
Publisher : Universitas Islam 45 Bekasi, Fakultas Teknik, Jurusan Teknik Mesin

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33558/jitm.v8i2.2186

Abstract

This study aims to determine the effect of variations in core material made of iron and resin sand on the Nepel Brass smelter on hardness, surface results of castings, shrinkage, density apparent, time, and cost. To find out which core material is more efficient for use in large quantities. The product material used is Brass in the form of Hose Nipple with a size of 1/5 x 5/8 inch. The average specimen weight in this study was 8.33 gr. From the research conducted, the differences were found, namely the hardness of the smelting process with the core material of iron castings and resin sand is 37.14 BH 5 / 250-25 and 30.94 BH 5/250-25. Material defects found are in iron castings specimens, namely rough surface defects, pinhole, scrabs, gas holes and air voids with 19 points of defect points and an area of ​​78 mm or 10.57% of the inside area of ​​the specimen. Likewise with resin sand-coated specimens experiencing defects of Coarse Surface, Needle Hole, Scrabs, Gas Hole, Air Cavity and sand inclusion / erosion hardness, with large numbers almost covering all parts of the specimen or 95.1%. For shrinkage, cast specimens with iron castings are smaller at 0.35% and resin-coated specimens of 0.40%. For porosity defects, iron castings in the specimens were 8.33 and 8.40 in the core of the resin sand castings. The higher the true density, the more dense the material is. The production time is 555 seconds (9 minutes 15 seconds) from the smelting process of specimens with the core of resin sand castings which is for 829 seconds (13 minutes 49 seconds). Whereas for the process of releasing specimens from molds, products with resin sand castings are faster at 14 seconds, while for specimens with iron castings core is 28 seconds. The cost required to make specimens with iron cast core is Rp. 4,718,500, the cost is cheaper than the manufacture of specimens with core resin sand castings that require capital of Rp. 4,999,000.
Co-Authors -, Ahsan Aep Surahto Ahsan - Ahsan . Apriliansyah, Mario Asrika, Sukwati Dewi Fadhlurrahman, Fauzan Fajarani, Ratu Mutia Fajri, Mochamad Ubaedillah Farisi, Adnan Al Irawan, Gandi Jenny Primanita Diningrum, Jenny Primanita Julian, Moh Rofi Maharadhika, Tri Gesti Mochamad Ubaedillah Fajri Moh Rofi Julian Muhammad Amin Bakri Netta Liliani, Netta Paridawati Paridawati, Paridawati Pribadi, Yoga Primanita, Jenny R Hengki Rahmanto, R Hengki Radiatus Solihin, Fikri Rafika Rahmawati Rahmadya Trias Handayanto Rahmanto, Raden Hengki Rika Sylviana Sikki, Ilyas Soedarmin Soenyoto Suryasa Majanasastra, Raden Bagus Syahputra, Novin Taufiqur Rokhman, Taufiqur Tri Gesti Maharadhika Yunanto, Wachid