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All Journal International Journal of Power Electronics and Drive Systems (IJPEDS) Jurnal Ilmu dan Teknologi Kelautan Tropis Diponegoro Journal of Management Jurnal Pendidikan Teknik Mesin Konversi ELINVO (Electronics, Informatics, and Vocational Education) Prosiding Seminar Nasional Sains dan Teknologi Terapan J-SAKTI (Jurnal Sains Komputer dan Informatika) IDENTIFIKASI: Jurnal Ilmiah Keselamatan, Kesehatan Kerja dan Lindungan Lingkungan Seminar Nasional Lahan Suboptimal Otopro Indonesian Journal of Engineering and Technology (INAJET) J-SAKTI (Jurnal Sains Komputer dan Informatika) SWARNA IWTJ : International Water Transport Journal Indonesian Proceedings and Annual Conference of Islamic Law And Sharia Economic (IPACILSE) Jurnal Rekayasa Mesin
Aji Nugroho
Teknik Kimia, Fakultas Teknik Universitas Muhammadiyah Jakarta
Religion Aerospace Engineering Agriculture, Biological Sciences & Forestry Humanities Automotive Engineering Biochemistry, Genetics & Molecular Biology Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Materials Science & Nanotechnology Mechanical Engineering Public Health Transportation Other

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Pengembangan Sistem Informasi Penunjang Pelayanan Hotel (Studi Kasus: Hotel XYZ) Umar, Rusydi; Nugrahantoro, Achmad; Periyanto, Ari; Nugroho, Aji; Kharismajati, Gema; Susanto, Dwi
J-SAKTI (Jurnal Sains Komputer dan Informatika) Vol 4, No 2 (2020): EDISI SEPTEMBER
Publisher : STIKOM Tunas Bangsa Pematangsiantar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30645/j-sakti.v4i2.216

Abstract

The hotel is a building that provides lodging services, restaurants, and other services that provide commercial for visitors. The use of hotel services that are still manual will be handled on the effectiveness of excellent service in hotel management. Computer technology support can be a solution in optimizing administrative activities, improving information, and making decisions. Hotel XYZ as one that still uses a manual transaction system. Then it is necessary to integrate data for each transaction using an interconnected database. Steps in the development of information systems need to be considered in improving the services of each hotel. The technique by collecting data to produce literature studies is an appropriate step to analyze the old system while developing the expected system. The results will be made on the design of the system for the database so that they are interconnected and the interface is easily understood by the user so that it facilitates the process of system implementation. After doing research, the black box test with a value of 100% with the results as expected is done. Comparison of the old system can be made by Microsoft Excel with interconnected databases presenting reports in printed form. It can meet the level of user satisfaction with a value of 95.3% of the results of the questionnaire from the five respondents involved.
Internet of things (IoT) based monitoring system for hybrid powered E-bike charging station Hidayat, Mohammad Noor; Nugroho, Aji; Munir, Abdullah Faiq; Putri, Ratna Ika
International Journal of Power Electronics and Drive Systems (IJPEDS) Vol 16, No 1: March 2025
Publisher : Institute of Advanced Engineering and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11591/ijpeds.v16.i1.pp243-250

Abstract

The internet of things (IoT) has become an important foundation in the development of web-based and remote technologies. In the implementation of renewable energy in hybrid E-bike systems, IoT-based monitoring system integration has made a significant contribution to monitoring activities. One of the latest innovations in the development of IoT in E-bike systems is the application of power prediction and the Coulomb counting method to estimate the charging time for a battery with a capacity of 200 AH, so that users can know the time needed to charge the battery efficiently. The IoT E-bike system is designed with user data display and monitoring features via the website, such as data on voltage, current, light intensity, battery percentage, power prediction, and prediction of the resulting battery charging time. Experimental results were obtained during the battery charging period, increasing the battery percentage from 50.43% (10 volts) to 71.769% (11.3 volts) in 4.5 hours with a battery charging charge of 153,866.4 C.
FULFILLMENT OF THE NEEDS OF SHIP BERTHING FACILITIES TO ENSURE PASSENGER SAFETY AT THE PIER OF THE CENGKLIK RESERVOIR BOYOLALI DISTRICT CENTRAL JAVA PROVINCE Sulistiyono, Noor; Sutrisno, Slamet Prasetyo; Sutrisno, Sri Kelana; Aziz, Dadang Abdul; Nugroho, Aji
IWTJ : International Water Transport Journal Vol. 7 No. 1 (2025): International Water Transport Journal (IWTJ:April)
Publisher : Politeknik Transportasi Sungai Danau dan Penyeberangan Palembang

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

Abstract

Boyolali Regency is one of the regencies in Central Java Province that has a lake/ reservoir as a water tourism site. Cengklik Reservoir has 37 tour boats that operate around the Cengklik Reservoir. The purpose of this research was to determined the berthing facilities needed at the reservoir and determined the type of pier that used at Cengklik Reservoir. This study was conducted from February to May 2024 by obtaining data on the characteristics of the data, reservoir water elevation data, water level data, and ship passenger productivity data. This study used several methods to solve existing problems, namely analyzing the need for docking facilities, analyzing the type of dock needed, analyzing the type of fender and bolder and analyzing the number of fenders and bolder. Based on the analysis, it was concluded that the smoothness of passenger loading and unloading activities and the safety of passengers when boarding / disembarking the ship were influenced by berthing facilities that meet the requirements that are in accordance with the needs. The need for ship berthing facilities at Cengklik Reservoir is planned to ensure passenger safety by determining the type of mobile type pier with dimensions of 31, 46 meters long and 8, 58 meters wide with planned berthing facilities in the form of fenders with a total of 29 units and a distance of 1, 07 meters, bolder with a total of 14 units with a distance of 2, 33 meters.
Rancang Bangun Otomatisasi Pemberian Pakan dan Minum serta Pembersihan Kotoran Kandang Burung Puyuh Berbasis Internet of Things Rizky Ramadhani, Muhammad; Sakti, Arya Mahendra; Riandadari, Dyah; Nugroho, Aji
Jurnal Rekayasa Mesin Vol 10 No 02 (2025): JRM Agustus 2025
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/jrm.v10i02.69895

Abstract

Burung puyuh (Coturnix coturnix japonica) memiliki potensi besar dalam produksi daging dan telur,namun produktivitasnya sering terhambat oleh metode pemeliharaan konvensional yang memerlukan waktu dan tenaga lebih, terutama dalam pemberian pakan, minum, serta pembersihan kotoran. Kendala ini semakin dirasakan oleh peternak yang menjalankan usaha secara paruh waktu dengan keterbatasan waktu. Penelitian ini bertujuan merancang dan membangun alat otomatis berbasis Internet of Things (IoT) untuk meningkatkan efisiensi pemberian pakan, minum, dan pembersihan kotoran pada kandang burung puyuh.Metode yang digunakan adalah pendekatan Research and Development (R&D) dengan sistem yang mengintegrasikan motor stepper Nema 23 untuk pemberian pakan, water pump dan sensor water level untuk pemberian minum otomatis,serta motor wiper dan conveyor untuk pembersihan kotoran, yang semuanya dapat dikontrol melalui aplikasi IoT untuk pemantauan jarak jauh dan kapasitas kandang yang dibuat 40 ekor. Hasil pengujian menunjukkanbahwa sistem mampu melakukan tiga fungsi otomatisasi secara efektif: pemberian pakan dengan hopperberkapasitas 5kg dan pembersihan kotoran dapat diakses melalui aplikasi, sedangkan pemberian minum wadahair berkapasitas 11.48liter berjalan yang otomatis menggunakan sensor water level. Hasil pemberian pakandidapatkan dengan rata-rata 423.5gram dan pembersihan kotoran didapatkan kebersihan dengan presentase98%. Keterbatasan dari alat ini ketika terjadinya listrik padam. Kontribusi penelitian ini adalah menghadirkansolusi teknologi terintegrasi yang dapat diadopsi untuk meningkatkan manajemen peternakan burung puyuhsecara modern dan berkelanjutan.
Perancangan Unit Sistem Pemanas Mesin Mini Portabel Ekstruuder Bioplastik Wildan, Muhammad Wildan Satrio Bimo; Ganda, Andita; Sakti, Arya Mahendra; Nugroho, Aji; Ma’addin, Khusnul Khuluq
Jurnal Rekayasa Mesin Vol 10 No 02 (2025): JRM Agustus 2025
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/jrm.v10i02.71346

Abstract

Pemanfaatan limbah oli bekas sebagai bahan bakar alternatif menjadi solusi dalam mengatasi masalah pencemaran lingkungan serta ketergantungan pada bahan bakar fosil seperti LPG dan minyak tanah. Penelitian ini bertujuan untuk merancang bangun kompor portabel berbahan bakar oli bekas jenis mineral yang dilengkapi dengan generator termoelektrik dan kipas pendingin 12V, mengkonversi panas menjadi listrik skala kecil. Metode dalam penelitian ini yaitu research and development dengan tahapan studi literatur, perancangan desain, pemilihan material, perakitan alat, pengujian fungsi, serta analisis data. Pengujian dilakukan untuk mengevaluasi kinerja kompor dalam hal waktu perebusan air 1 liter, stabilitas suhu pembakaran, serta kemampuan konversi panas menjadi listrik menggunakan 10 modul Peltier dalam konfigurasi seri. Data yang diambil meliputi tegangan volt, arus Ampere, suhu dingin dan panas pada modul Peltier, serta kecepatan kipas blower RPM pada berbagai variasi kecepatan (3900, 5965, 6756, dan 7930 RPM). Hasil penelitian menunjukkan bahwa kompor mampu mendidihkan 1 liter air dalam waktu 4,09 menit pada kecepatan kipas tertinggi, menghasilkan tegangan maksimum sebesar 13,046volt dengan arus 0,360 mA. Desain kompor menggunakan rangka besi beton dan hollow 4x4, pipa 3D sebagai ruang bakar, serta pendinginan aktif menggunakan kipas 12V yang meningkatkan efisiensi termoelektrik. sistem termoelektrik dengan pendingin kipas pada kompor berbahan bakar oli bekas. Inovasi ini memberikan alternatif solusi teknologi terbarukan yang ramah lingkungan dan dapat digunakan di daerah terpencil tanpa akses listrik.
Rancang Bangun Mini Portable Ekstruder Produksi Bioplastik Dari Pati Singkong khuluq ma'addin, khusnul; Nugroho, Aji; Mahendra Sakti, Arya; Fitri Ganda, Andita Nataria
Jurnal Rekayasa Mesin Vol 10 No 02 (2025): JRM Agustus 2025
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/jrm.v10i02.71430

Abstract

Plastik merupakan bahan yang banyak digunakan dalam kehidupan sehari-hari, namunmemiliki dampak negatif terhadap lingkungan akibat limbah yang sulit terurai. Salah satu solusiuntuk mengatasi permasalahan ini adalah dengan mengembangkan bioplastik berbahan dasar patisingkong, yang lebih ramah lingkungan dan mudah terdegradasi. Namun, proses produksi bioplastikmasih menghadapi kendala, seperti biaya produksi tinggi dan kebutuhan alat yang kompleks. Olehkarena itu, penelitian ini bertujuan untuk merancang dan membangun mini portable ekstrudersebagai alat produksi bioplastik skala kecil yang lebih efisien, ekonomis, dan mudah dioperasikan.Metode penelitian menggunakan pendekatan Research and Development (R&D), dimulai dariperancangan, pembuatan, hingga pengujian alat. Mini ekstruder ini dirancang dengan motor DC ¼HP dan gearbox rasio 1:12,5, serta dilengkapi sistem pemanas menggunakan band heater. Prosesekstrusi dilakukan pada suhu 150°C dengan variasi kecepatan screw 50 rpm, 75 rpm, dan 100 rpm. Mini portable ekstruder ini berhasil memproduksi filamen bioplastik dari pati singkong, sertamemiliki potensi besar dalam mendukung produksi skala kecil dan pemanfaatan limbah organik,sebagai bahan baku ramah lingkungan.
Analisis Biaya Pada Mesin Ekstruder Bioplastik Aldio, Bintang Tri; Ganda, Andita Nataria Fitri; Riandadari, Dyah; Nugroho, Aji
Jurnal Rekayasa Mesin Vol 10 No 02 (2025): JRM Agustus 2025
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/jrm.v10i02.71513

Abstract

Penelitian ini bertujuan untuk menganalisis efisiensi biaya dalam pembuatan mesin ekstruder bioplastik berbasis kulit singkong. Mesin ini dirancang untuk mendukung produksi bioplastik yang ramahlingkungan dan dapat terurai secara hayati, terutama untuk diterapkan oleh industri kecil dan menengah.Metode yang digunakan adalah pendekatan kuantitatif dengan menghitung seluruh komponen biaya,yang meliputi biaya material, pemesinan, perakitan, desain, serta biaya tidak langsung (overhead).Total biaya produksi mesin yang dihasilkan adalah sebesar Rp 5.786.700. Komponen biaya terbesarterdapat pada material sebesar Rp 3.462.000, sedangkan sisanya terdiri dari biaya pemesinan sebesar Rp435.000, biaya perakitan sebesar Rp 300.000, dan biaya desain sebesar Rp 389.700. Berdasarkan total biayatersebut, harga jual mesin ditentukan sebesar Rp 7.395.000 dengan mempertimbangkan margin keuntungan25% dan PPN 10%. Hasil penelitian ini diharapkan dapat menjadi referensi dalam merancang mesinekstruder berbiaya efisien yang sesuai dengan kebutuhan industri skala kecil.
Analysis of Feeding, Drinking and Automatic Fecal Cleaning in Quail Cages Based on The Internet of Things Nur Rohman, Muhammad; Mahendra Sakti, Arya; Riandadari, Dyah; Nugroho, Aji
Indonesian Journal of Engineering and Technology (INAJET) Vol. 8 No. 1 (2025): September 2025
Publisher : Fakultas Teknik Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/inajet.v8n1.p10-18

Abstract

Analyze the effect of the slope of the feeding valve on the consumption of quail feed to determine the optimal angle of inclination, evaluate the effect of the variation in the diameter of the timing pulley on the conveyor belt on the rotation speed and cleaning time of the cage manure to find the most effective pulley size, and study the effect of liquid viscosity on the filling time of the tank using a water pump in order to optimize the liquid filling system in the farm. An applied experimental method with a quantitative approach was used to test the influence of free variables. The data collected including feed consumption, fecal cleaning time, and drinking water filling time were analyzed numerically to obtain valid and objective results. The results showed that increasing the tilt of the feeding valve from 20°, 25°, to 30° increased feed consumption from an average of 348 grams to 725 grams. The timing diameter of the pulley has an effect on the rotational speed and cleaning time, with the small pulley (25 mm) resulting in the fastest cleaning (0.42 minutes) and the largest pulley (50 mm) the slowest (1.38). In addition, the viscosity of the liquid affects the filling time of the 10-liter tank, where ordinary water is the fastest (3.52 minutes), water with 5 vitamins is slightly longer, and the mixture of water with molasses and salt is the slowest (4.31 minutes). 
RANCANG BANGUN MESIN PENCETAK PENTOL UNTUK UMKM DENGAN KAPASITAS ADONAN 3KG PER JAM Ramadhani A, Gilang; Wulandari, Diah; Puspitasari, Dewi; Nugroho, Aji
Jurnal Rekayasa Mesin Vol 10 No 03 (2025): JRM Desember 2025 (In Press)
Publisher : Universitas Negeri Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26740/jrm.v10i03.72768

Abstract

This research aims to design and develop a household-scale meatball (pentol) printing machine intended for Micro, Small, and Medium Enterprises (MSMEs). The main problem faced by small-scale pentol entrepreneurs is the limitation of production tools, which are still manual, resulting in low efficiency and productivity. Therefore, the development of a pentol printing machine with a dough capacity of 3 kg per hour is expected to provide a solution in the form of a semi-automatic device that is more economical and practical for MSME use. The research method employed is Research and Development (R&D), which includes the design, manufacturing, testing, and evaluation of the pentol printing machine. The testing process used pentol dough as the material. The machine is designed with a ¼ HP electric motor at a speed of 1250 rpm and uses a screw conveyor system to push the dough. The machine frame dimensions are 400 × 300 × 450 mm, with a pulley ratio of 1:1 (2 inches / 50.8 mm) and an M-21 V-belt. A horizontal design and the addition of a cooling box are the main advantages to prevent the dough from sticking during the cutting process. The results of the design and construction tests of the pentol printing machine show that the machine operates well and is able to improve printing efficiency compared to the manual method. The machine was tested three times, each with 1 kg of dough, producing an average processing time of 3.12 minutes per kilogram. This machine is easy to operate and maintain, making it highly suitable for small business operators. With the presence of this machine, it is expected that MSMEs can increase production capacity and competitiveness in the local market. Keywords: Design and construction, Meatball printing machine, Screw conveyor.
Upaya Pemanfaatan Limbah Jamu Untuk Meningkatkan Pendapatan Rumah Tangga di Kelurahan Wonolopo Kecamatan Mijen Kota Semarang Haryanti, Caecilia Sri; Soegiastuti, Janti; Nugroho, Aji; Faizah, Isti
SWARNA: Jurnal Pengabdian Kepada Masyarakat Vol. 3 No. 1 (2024): SWARNA: Jurnal Pengabdian Kepada Masyarakat, Januari 2024
Publisher : LPPM Sekolah Tinggi Ilmu Ekonomi 45 Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55681/swarna.v3i1.1130

Abstract

Masyarakat kelurahan Wonolopo, Kecamatan Mijen Kota Semarang rata rata penduduk memiliki lahan pekarangan yang masih cukup luas, serta di dukung mata pencaharian yang masyarakat di kelurahan Wonolopo yang beragam, Kelurahan Wonolopo Kecamatan Mijen Kota Semarang merupakan kategori desa wisata berkembang, untuk itu diperlukan lingkungan yang bersih dan penataan yang baik dari limbah, kotoran yang akan merusak pemandangan para wisatawan. Suasana pedesaan masih sangat di rasakan di sini. Kelurahan Wonolopo dipimpin oleh ibu Rina Sugiwurwani, disini banyak kampung tematik yang layak dikunjungi dan progres capaian kampung tematik ada 15. Peluang untuk pemanfaatan limbah jamu dapat direalisasikan dengan memberdayakan ibu rumah tangga yang tidak bekerja dan juga para karang taruna yang belum bekerja. Dengan demikian akan menjadi peluang penambahan pendapatan dan potensi pengembangan ekonomi di daerah tersebut. Proses pengolahan limbah tidak terbatas hanya pada limbah jamu saja, namun juga limbah rumah tangga yang selalu menjadi masalah bagi lingkungan, agar tidak merambah pada pencemaran, dengan berjalannya pengolahan limbah lingkungan akan bersih dan masyarakat akan memperoleh manfaat dengan penambahan pendapatan.
Co-Authors Achmad Nugrahantoro Aldio, Bintang Tri Ardiansyah, Ardi Arifianti, Lailatus Sa’diyah Yuniar Arifin, Imanuel Timotius Armelia Putri, Trida Arya Mahendra Sakti Asyroh, Muhammad Fakhril Kaffah Athiek Sri Redjeki Aziz, Dadang Abdul Bekti Wulandari Caecilia Sri Haryanti Dahnia, Lilis Dewi Puspitasari Diah Wulandari Diandra, Chaska Akhila Ade Dwi Susanto Dyah Riandadari Faizah, Isti Ferly Isnomo Abdi Fitri Ganda, Andita Nataria Ganda, Andita Ganda, Andita Nataria Fitri Husaini, Fahrian Imammuddin, Azam Muzakhim Janti Soegiastuti Kharismajati, Gema khuluq ma'addin, khusnul Ma’addin, Khusnul Khuluq Meirinawati, Hanny Mohammad Noor Hidayat Munir, Abdullah Faiq Noeryanto, Noeryanto Nur Rohman, Muhammad P. M. Winarno Pangestu, Aji Periyanto, Ari Peryanto, Ari Pustika, Rita Rachman Arief, Rachman Rahmadania, Ella Ramadhani A, Gilang Ratna Ika Putri Retno Cahya Mukti Rizal Hari Magnadi Rizky Ramadhani, Muhammad Rusydi Umar Sry Lidya, Jessica Sulistiyono, Noor Sutrisno, Slamet Prasetyo Sutrisno, Sri Kelana Suwahyo - Tijanul Uluum, Ahmad Wildan, Muhammad Wildan Satrio Bimo