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All Journal Jurnal Keteknikan Pertanian Rekayasa Mesin Jurnal AME (Aplikasi Mekanika dan Energi): Jurnal Ilmiah Teknik Mesin Abdi Dosen : Jurnal Pengabdian Pada Masyarakat ASEAN Journal of Chemical Engineering JURMA : Jurnal Program Mahasiswa Kreatif AME (Aplikasi Mekanika dan Energi) : Jurnal Ilmiah Teknik Mesin Jurnal Polimesin Journal of Applied Science and Advanced Engineering Almikanika

Hablinur Alkindi

Universitas Ibn Khaldun Bogor

Author-ID : 3928781

Religion Agriculture, Biological Sciences & Forestry Humanities Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Control & Systems Engineering Education Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mechanical Engineering Physics Public Health Social Sciences Other

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Analisis CFD Aliran Udara Panas pada Pengering Tipe Rak dengan Sumber Energi Gas Buang Hablinur Alkindi; Y. Aris Purwanto; Dyah Wulandani
Jurnal Keteknikan Pertanian Vol. 3 No. 1 (2015): Jurnal Keteknikan Pertanian
Publisher : PERTETA

AbstractHot air from residual biomass combustion in biomass power plant can be used for drying process. The objective of this syudy was to analyze the distribution of hot air inside tray dryer using Computational Fluid Dynamic (CFD) and to modify the dryer room for copra drying based on the result of CFD analysis. Result of CFD analysis shows that the distribution of hot air inside dryer room was not homogen among trays. The average temperature at top tray (I) was 90.0±10.8oC and bottom tray (IV) was below 49oC. Modification of dryer room was carried out by adding partition wall in the end of tray to allow the hot air flow through all trays. After modification, the temperature of drying air inside dryer room increased and the temperature distribution was better than that before modification. Form CFD simulation it was resulted the temperature of drying air at tray I, II, III and IV were 114oC, 124oC, 135oC and 119oC respectively. Fruthermodification was carried out to obtain the drying temperature of 75-90oC. This drying temperature was achieved by decreasing the frequency electricity for suction fan from 50 to 25 Hz, 20 Hz and 15 Hz. From CFD simulation was indicated that in order to obtain the temperature inside dryer room of 75-90oC, the frequency of electricity should be decreased to 206.9oC (20 Hz) to 230.7oC (25 Hz).Keywords : gas from residual biomass combustion, CFD, temperature distribution, tray dryer.AbstrakUdara panas sisa pembakaran biomassa pada alat pembangkit listrik tenaga biomassa dapat dimanfaatkan untuk proses pengeringan. Tujuan penelitian ini adalah menganalisis sebaran suhu pada ruang pengering dari alat pengering tipe rak yang memanfaatkan udara panas sisa pembakaran biomass menggunakan Computational Fluid Dynamics (CFD) dan melakukan modifikasi ruang pengering berdasarkan hasil simulasi CFD yang sesuai untuk pengeringan kopra. Hasil analisis CFD untuk sebaran panas di ruang pengering menunjukkan ketidakrataan sebaran udara panas antar rak pengering. Suhu rata-rata pengukuran rak paling atas (I) 90.0±10.8oC, sedangkan rak IV (bawah) 49oC. Modifikasi ruang pengering dilakukan dengan menambahkan dinding pembagi untuk mengarahkan udara pengering yang diletakkan di ujung rak I, II, dan III. Setelah penambahan dinding, udara panas lebih merata dan terjadi kenaikan suhu yang disebabkan karena panas gas buang yang besar yaitu sekitar 294.5oC. Suhu rata- rata simulasi CFD setiap rak I, II, III dan IV masing masing 114oC, 124oC, 135oC dan 119oC. Modifikasi selanjutnya dilakukan untuk mendapatkan suhu pengeringan antara 75-90oC yang sesuai untuk pengeringan kopra dengan menurunkan frekuensi kipas hisap dari 50 Hz menjadi 25 Hz, 20Hz, dan 15 Hz. Penurunan frekuensi kipas hisap menyebabkan penurunan suhu dalam ruang pengering. Dari hasil simulasi CFD menunjukkan bahwa untuk mendapatkan suhu dalam ruang pengering 75-90oC, maka suhu gas buang diturunkan menjadi 206.9oC (20 Hz) hingga 230.7oC (25 Hz).Kata kunci: gas sisa pembakaran biomassa, CFD, distribusi suhu, pengering tipe rakDiterima: 22 Oktober 2014; Disetujui: 15 Januari 2015

Uji Performansi Prototipe Alat Pengering Kopra Memanfaatkan Panas Buang PLTU Berbahan Bakar Arang Tempurung Kelapa Dedi Suntoro; Subhan Nafis; Hablinur Al-Kindi
Jurnal Keteknikan Pertanian Vol. 6 No. 3 (2018): JURNAL KETEKNIKAN PERTANIAN
Publisher : PERTETA

AbstractThe exhaust heat of steam power plant has considerable energy potential that can be recovered for various processes, one of which is for the drying of materials. The purpose of this research is to know the performance of a copra dryer by utilizing exhaust heat from coconut shell charcoal fired power plant which has been developed by P3TKEBTKE. Copra dyers consisting of a fan, heat exchangers, and a drying chamber are installed on the boiler combustion flue gas duct as the heat source. This research was conducted by varying fan speed at 2.2 m/s and 3.7 m/s. The results show the drying room temperature between 36-130°C, are not equally distributed. The test results with the air flow rate of 4.14 m3/m shows the average temperature of 72.18°C drying copra final moisture content 17.72%, the drying rate of 4.72%, energy consumed 55.97 MJ/kg, thermal efficiency 20,90% and drying efficiency of 4.83%. While the test results with an air floe rate of 6.97 m3/m shows better results with an average temperature of 68.13°C drying copra final moisture content 16.05%, the drying rate of 5.1%, energy consumed 32.47 MJ/kg, thermal efficiency 55.57% and drying efficiency of 8,25%..AbstrakPanas buang PLTU memiliki potensi energi yang cukup tinggi yang dapat dimanfaatkan kembali untuk berbagai proses, salah satunya untuk pengeringan bahan. Tujuan dari penelitian ini adalah untuk mengetahui unjuk kerja alat pengering dengan memanfaatkan panas buang dari PLTU berbahan bakararang tempurung kelapa yang telah dikembangkan oleh P3TKEBTKE. Alat pengering tipe rak yang terdiri dari komponen kipas, heat exchanger, dan ruang pengering dipasang pada saluran gas buang pembakaran boiler sebagai sumber panasnya. Pada penelitian ini dilakukan pengujian dengan variasi laju alir udara4.14 m3/m dan 6.97 m3/m. Hasil pengujian dengan laju alir udara 4,14 m3/m menunjukkan rata-rata suhu pengeringan 72.18°C kadar air kopra akhir 17.72%, laju pengeringan 4.72%, kebutuhan energi untuk menguapkan air dari produk kopra adalah 55.97 MJ/kg, efisiensi termal pengering 20.90%, dan efisiensi sistem pengeringan 4.83%. Sedangkan hasil pengujian dengan kecepatan 3.7 m/s menunjukkan hasil lebih baik dengan rata-rata suhu pengeringan 68.13°C kadar air kopra akhir 16.05%, laju pengeringan 5.1%, kebutuhan energi untuk menguapkan air dari produk kopra adalah 32.47 MJ/kg, efisiensi termal pengering 55.57%, dan efisiensi sistem pengeringan 8.25%.

PEMBUATAN MEDIA POSTER DAN PENYEMPROTAN DISINFEKTAN DI DESA GUNUNG PUTRI UTARA UNTUK PENCEGAHAN PENYEBARAN COVID-19 Muhamad Adam Maulana; Hablinur Al Kindi
PKM-P Vol 5 No 1 (2021): Juni 2021
Publisher : LPPM UIKA Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32832/pkm-p.v5i1.896

Saat ini dunia, sedang adanya terjadi pandemic Covid-19. Pandemic Covid-19 mengubah cara kehidupan sosial masyarakat diberbagai aspek kehidupan, salah satunya dunia Pendidikan. Sehingga semua kegiatan mengajar, penelitian, dan pengabdian masyarakat harus dilakukan sesuai dengan protokol Kesehatan yang diterapkan pemerintah. Tujuan dari kegiatan KKNGTM tersebut adalah untuk meningkatkan kesadaran akan bahayanya Covid-19 khususnya Bogor. Penelitian ini bertujuan untuk mengajak masyarakat selalu menggunakan protocol di kala pandemic Covid-19, mencari solusi atau memecahkan sebuah masalah dimasyarakat selama pandemic Covid-19 dan seberapa tingkat kepedulian masyarakat dengan adanya Virus Corona (Covid-19). Penelitian ini menggunakan metode kuantitatif secara garis besar mengambil suatu fenomena berdasarkan pada kejadian yang secara real dilapangan. Jumlah total ± 150 pemukian warga, masjid, dan berbagai lainnya dalam melakukan penyemrpotan disinfektan di desa Gunung Putri Utara, Bogor. Mekanisme untuk mengajak masyarakat melakukan pencegahan penyebaran Covid-19 dengan membuat sebuah media cetak informasi (Poster) yang berupa ajakan kepada masyarakat selalu menggunakan protocol Kesehatan dan mengingat daerah Bogor masuk kedalam Zona merah. Data menganalisis dilapangan yang selalu memperhatikan protocol Kesehatan dan selalu menjaga kebersihan pribadinya orang tua 50%, dewasa/remaja 35%, anak-anak 15%. Hasil menunjukkan bahwa masyarakat masih banyak yang tidak peduli atau sepele adanya pandemic Virus Corona (Covid-19) ini. Dari pihak lingkungan setempat kurang adanya edukasi.

ANALISIS PENGARUH CLEANING TUBING KONDENSOR TERHADAP PERFORMA SISTEM REFRIGERASI MESIN WATER COOLED CHILLER KAPASITAS 650TR Agung Pranoto; Hablinur Al Kindi; Gatot Eka Pramono
Jurnal Rekayasa Mesin Vol. 14 No. 1 (2023)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/jrm.v14i1.1337

The condenser needs to be cleaned so that the performance of the heat exchanger can optimally. This research was conducted on a water cooled chiller machine with a capacity of 650TR and the type of refrigerant used is R134a to determine the performance of the machine after cleaning process. The electric power used by the compressor’s motor before there was a fouling, fouling and after cleaning the condenser tubing were 174,80 kW, 191,22 kW and 174,42 kW respectively. The mass flow rate of cooling water before there is a fouling, fouling and after cleaning the condenser tubing is 98,01 kg/s, 106,74 kg/s and 126,15 kg/s respectively. The actual cooling load before there is a fouling, fouling and after cleaning the condenser tubing is 1352,46 kW, 1343,27 kW and 1363,92 kW respectively. Heat rejected before there is a fouling, fouling and after cleaning the condenser tubing is 1527,26 kW, 1534,49 kW and 1538,34 kW respectively. Coefficient of performance heating before there is a fouling, fouling and after cleaning the condenser tubing is 8,75, 8,04 and 8,82 respectively. Based on the results of the research, the performance of the water cooled chiller machine has increased after cleaning the condenser tubing.

Analisis Head Losses Pada Circulating Fluida Air Dalam Dua Jenis Pipa Hablinur Alkindi; Hasan Santosa; Edi Sutoyo
AME (Aplikasi Mekanika dan Energi): Jurnal Ilmiah Teknik Mesin Vol. 9 No. 1 (2023)
Publisher : Universitas Ibn Khaldun Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar

Dalam dunia industri dituntut untuk selalu meningkatkan performance dalam meningkatkan produk yang dihasilkan, maka dari itu hasil yang diperoleh tersebut tidak terlepas dari mesin atau alat yang menggunakan sistem perpipaan dalam memproses produk yang dihasilkan. Pada instalasi perpipaan banyak dipakai elbow. Salah satunya berfungsi untuk membelokan arah ditribusi aliran fluida, membagi aliran menjadi bercabang sesuai yang diinginkan. Penelitian ini bertujuan untuk mengetahui pengaruh sambungan elbow terhadap koefisien kerugian tekanan akibat adanya elbow aliran fluida yang menyebabkan penurunan unjuk kerja dari suatu system. Dari hasil analisa perhitungan diperoleh nilai head loss mayor bahan galvanis pada bukaan katup 100% sebesar 0,12 m, bukaan katup 75% sebesar 0,07 m dan bukaan katup 50% sebesar 0,03 m. Dari hasil perhitungan diperoleh nilai head loss mayor bahan PVC pada bukaan katup 100% sebesar 0,21 m, bukaan katup 75% sebesar 0,12 m, dan bukaan katup 50% sebesar 0,05 m. Dari hasil perhitungan diperoleh nilai head loss minor pada alat uji ini dengan bukaan katup 100% sebesar 0,08 m, bukaan katup 75% sebesar 0,02 m dan bukaan katup 50% sebesar 0,01 m. Semakin besar bukaan katup maka semakin besar nilai head losses mayor maupun head losess minor. Sedangkan untuk pressure drop, semakin besar bukaan katup maka semakin kecil nilai pressure drop pada sistem fluida ini. Daya pompa yang dipakai pada sistem fluida hanya sebesar 7,8 watt. Kata kunci : air; elbow; debit; koefisien kerugian; perpipaan; pressure drop.

Simulation on the Breakthrough Curve During CO2 Adsorption from Biogas in a Fixed Bed Column Kindi, Hablinur al; Tambunan, Armansyah Halomoan; Hartulistiyoso, Edy; Salundik, Salundik; Sutoyo, Edi; Sutisna, Setya Permana
ASEAN Journal of Chemical Engineering Vol 23, No 3 (2023)
Publisher : Department of Chemical Engineering, Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ajche.82470

Separation of CO2 gas from the biogas can be accomplished by adsorption process. An adsorbent has a maximum capacity, so the adsorbent will eventually be saturated at a certain time. Therefore, it is necessary to simulate the adsorption mass transfer to produce a breakthrough curve. The breakthrough curve from the simulation of adsorption mass transfer was validated with the experimental data. The research was conducted using variations in temperature and pressure. The mass transfer simulation was solved using the finite difference method. The adsorbent used in this research was 13X zeolite and the biogas was obtained from cow dung waste. Convergent curves can be obtained in numerical simulations as breakthrough curves. This research shows that adsorption should occur at low temperatures and high pressure. Column height and flow velocity also influence the breakthrough time. The comparison of the simulated breakthrough time with experimental data is not much different with R2 0.9969. The striking difference is in the adsorption zone with average relative error (ARE) values ranging from 9.57% to 20.49%. From the results of entropy, enthalpy, and Gibbs free energy calculations, the biogas adsorption research on the 13x zeolite column is an exothermic and spontaneous process

Design and Frame Strength Evaluation of Salt Washing Unit Capacity 50 Kg/hour Tika Hafzara Siregar; Setya Permana Sutisna; Edi Sutoyo; Mamat Rahmat; Hablinur Al Kindi; Dodih
Journal of Applied Science and Advanced Engineering Vol. 1 No. 2 (2023): JASAE: September 2023
Publisher : Master Program in Mechanical Engineering, Gunadarma University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.59097/jasae.v1i2.18

The salt washing unit is part of the salt processing machine. This unit's function is to wash raw salt with brine. This unit has a motor, agitator blade, washing chamber, and frame. The frame structure strength of the salt washing unit needs to be evaluated to ensure safety. This research aims to design the salt washing unit and obtain simulation results of frame structure strength to ensure the safety of the salt washing unit. This research was carried out by simulation to look for stress, strain, and changes in the shape of objects (displacement). The frame strength simulation was carried out using Solidwork software. The salt washing unit with a 50 kg/hour capacity has been designed. It has a cylindrical shape with 990 mm in height and 680 mm in diameter. From the simulation results of strain, it can be concluded that the minimum point is 1.80 × 108 Mpa, and the maximum point is 1.63 × 105 Mpa. From the simulation results of displacement, it can be concluded that the minimum point is 0 mm and the maximum point is 2,296 mm. The maximum stress is 5.254×106 N/m2, and the minimum stress point is 1.803×106 N/m2.

PERHITUNGAN KOEFESIEN PINDAH PANAS PADA HEAT EXCHANGER UNTUK PENGERINGAN Suntoro, Dedi; Kindi, Hablinur Al-
AME (Aplikasi Mekanika dan Energi): Jurnal Ilmiah Teknik Mesin Vol. 2 No. 1 (2016)
Publisher : Universitas Ibn Khaldun Bogor

Hot air from residual biomass combustion in biomass power plant can be used for drying process. In this study, hot air from residual biomass combustion was utilised as energy source for tray dryer. Model of tray dryer developed by Boiler Laboratory, Lemigas was used as drying apparatus. The objective of this study was to analyze the distribution of hot air inside tray dryer using Computational Fluid Dynamic (CFD). Heat transfer occurs in heat exchanger. Hot air coming from heat exchanger to dryer by be blown with blower. One of the most important variable is heat transfer coefficient in heat exchanger (U).This research aims to find heat transfer coefficient in heat exchanger . The result , heat transfer coefficient depend on five thermal resistance ; thermal resistance by air convection 0,011 m2.K/W, thermal resistance by factor of air pollutant 0,00035 m2.K/W, thermal resistance by flue gas pollutant 0,00176 m2.K/W, thermal resistance by conductivity material, thermal resistance by flue gas 0,03 m2.K/W. Heat transfer coefficient is 23.55 W/m2 .K .

Analysis Putaran Spesifik Motor Penggerak Perahu Nelayan Menggunakan Teknologi Pneumatic Berdasarkan Variasi Tekanan Sumadi, Sumadi; Alkindi, Hablinur
AME (Aplikasi Mekanika dan Energi): Jurnal Ilmiah Teknik Mesin Vol. 2 No. 2 (2016)
Publisher : Universitas Ibn Khaldun Bogor

Putaran spesifik adalah suatu nomor indek tanpa satuan yang mana secara numerik sama dengan kecepatan putaran dimana pada suatu system penggerak perahu yang benar-benar teoritis. Putaran spesifik merupakan variable penting dalam motor penggerak perahu nelayan, untuk mendapatkan putaran spesifik maka dilakukan langkah-langkah, antara lain 1.Menghitung putaran spesifik, 2.Penelitian pada baling-baling perahu nelayan, selanjutnya menghitungputaran pada baling-baling. Dari hasil analisa di dapat putaran minimum 250 rpm dan putaran maksimum 2500 rpm.

ANALISA PRESSURE DROP DENGAN PENAMBAHAN ZAT ADITIF CAIRAN COOLANT PADA PIPA SILINDER MENGGUNAKAN METODE EMPIRIS DAN METODE EKSPERIMEN Setiawan, Irwan; Nurrohman, Nurrohman; Al Kindi, Hablinur
AME (Aplikasi Mekanika dan Energi): Jurnal Ilmiah Teknik Mesin Vol. 4 No. 1 (2018)
Publisher : Universitas Ibn Khaldun Bogor

The flow of fluid through the pipe creates fluid friction with pipe walls causing pressure drop and fluid flow velocity affecting the use of energy to drain it. Pressure drop can be affected by several factors such as friction or friction factor, pipe length, pipe diameter and fluid velocity. In this research, it will analyze pressure drop on piping system based on friction, fluid flow characteristics, and fluid velocity. The analysis was done by using two methods, namely experimental method and empirical calculation method. The stages of this study consist of problem analysis, literature study, calibration, data retrieval, empirical data processing and experiments, validation, analysis of results and conclusions. Based on the results of empirical and experimental research, the lowest pressure drop in the experiment and empirical was the 12 LPM discharge copper pipe and the water coolant ratio is 0: 100. This means that the best material pipes used were copper pipes rather than steel and galvanized pipes. The results of the tests and experiments have been tested for validation. The validation value of empirical and experimental data measurement is 91%.

Co-Authors Agung Pranoto Akbar, Barkah Armansyah Halomoan Tambunan Budi Hartono Darmawan, Ryan Dedi Suntoro Dodih Dwi Yuliaji Edy Hartulistiyoso Fardiansyah, Ahmad Adit Firdaus, Andika Fitriani Fitriani Hasan Santosa IRWAN SETIAWAN Khasanah, Nunung Dwi Nur MAMAT RAHMAT Mamat Rahmat Muhamad Adam Maulana Nashrullah, Nuruddin Novianto, Irsan Nurhayati, Immas Nurrohman Nurrohman Nurtanto, Bagus Dwi Pramono, Gatot Eka Putri, Anggi Sagitha Rahmat Rosyadi, Abdu Salundik Sena, Aditya Angga Setya Permana Sutisna Sobar, Ade Subhan Nafis Suhada, Rohman SUMADI SUMADI Suntoro, Dedi Supanto Supanto Sutisna, Satya Permana Sutoyo, Edi Sutoyo, Edy Tika Hafzara Siregar Titing Suharti Yanto, Dwi Yogi Sirodz Gaos, Yogi Sirodz

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