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All Journal Jurnal Teknik Industri Jurnal Gamma Rekayasa Mesin Journal of Energy, Mechanical, Material and Manufacturing Engineering International Journal of Community Service Learning Journal of Community Service and Empowerment Prosiding Simposium Nasional Rekayasa Aplikasi Perancangan dan Industri Prosiding Konferensi Nasional Penelitian Matematika dan Pembelajarannya
Mulyono, M
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Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Environmental Science Industrial & Manufacturing Engineering Law, Crime, Criminology & Criminal Justice Mathematics Mechanical Engineering Social Sciences Other

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Pemanfaatan Teknologi Tepat Guna Berbasis Solar Cell untuk Mengatasi Permasalahan IRT Nelayan Sapeken Kabupaten Sumenep Hindun, Iin; Mulyono, M.; Husamah, H.
International Journal of Community Service Learning Vol 3, No 4 (2019): November 2019
Publisher : Universitas Pendidikan Ganesha

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (863.587 KB) | DOI: 10.23887/ijcsl.v3i4.21791

Abstract

Artikel ini bertujuan menganalisis implementasi pemanfaatan TTG berbasis solar cell untuk mengatasi permasalahan IRT Nelayan Sapeken. Mitra kegiatan yaitu Dapoer Emmak dan Sapeken Sejahtera. TTG yang diimplementasikan berupa alat pembuat abon dan perahu. Instrumen kegiatan meliputi materi presentasi, produk, alat dokumentasi, buku catatan, dan instrumen evaluasi. Metode pengabdian adalah survey, demonstrasi, dan praktek langsung, dan evaluasi. Data dikumpulkan dengan terlibat langsung dalam aktivitas masyarakat, pengambilan sampel produk dan perekaman dokumen serta kegiatan. Data dianalisis secara deskriptif. Kegiatan dianggap berhasil bila TTG mahir digunakan oleh mitra, persentase keterlibatan dan keaktifan mencapai ?75%, ada peningkatan kuantitas dan kualitas produk/hasil usaha, income meningkat, dan semua tahapan kegiatan terlaksana. Berbagai kegiatan dilakukan pengabdi, yaitu koordinasi dan konsolidasi tim, serta penyamaan persepsi dengan mitra, pendesainan, penyiapan, dan pembuatan, penyerahan TTG, pelatihan, dan pemanfaatan TTG oleh mitra, serta monitoring dan evaluasi. Dpat disimpulkan bahwa kegiatan pengabdian telah dilaksanakan dengan sangat baik, sesuai dengan target yang telah ditetapkan.  Kata Kunci: Abon, perahu, Sapeken, solar cell, teknologi tepat guna. 
Optimasi Rongga Terhadap Variasi Derajat Kevakuman Sebagai Isolator Mulyono, M
Jurnal Teknik Industri Vol 11, No 1 (2010): Februari
Publisher : Department Industrial Engineering, University of Muhammadiyah Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (566.87 KB) | DOI: 10.22219/JTIUMM.Vol11.No1.63-67

Abstract

In the world of industry, insulation materials are often utilized to maintain the temperature, either low or high. However, since the insulation materials often need to be thick, thus, costly, they are frequently deemed impractical. Therefore, in the attempt to replace the insulation materials, a cavity with low vacuum pressure is opted for. Yet, to attain a total (100%) airfree cavity is not an easy task. Such, the cavity usually still bears some amount of air pressure which results in natural heat convection through the two surfaces making up the cavity. The transfer coefficient of natural heat convection (h) is influenced by some factors, such as, the temperature difference, geometry of the cavity, cavity orientation, and characteristics of the fluid, for instance, its pressure, temperature, conductivity, specific gravity (density), and viscosity. The purpose of the study is to find answers to the following question: “How do vacuum pressure variation and cavity ratio affect the rate of natural heat convection through the a cavity?” Pertinent to the question, the study was aimed to find the appropriate value of the vacuum pressurewhich can function well as an insulator. This study is significant in the attempt to lower down the rate of heat transfer taking place in a system vis-à-vis the surrounding media. The study found out that the degree of emptiness of -60 cm Hg and =5.96, results in a lower rate of heat transfer compared with -20 cm Hg and -40 cm Hg. This means that the vacuum pressure of -60cm Hg bears a bigger thermal resistance than the -20 cm Hg and -40 cm Hg do.
STUDI EKSPERIMEN DAN ANALISA PERPINDAHAN PANAS KONVEKSI PADA SUATU RONGGA DENGAN VARIASI DERAJAT KEVAKUMAN Mulyono, Mulyono
Jurnal Gamma Vol 1, No 2 (2006): Maret
Publisher : Jurnal Gamma

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (106.045 KB)

Abstract

In the world of industry, isolation material is often used to maintain the substance temperature in thesituation cold or hot. Besides expensive and thick, the size usage of isolation material is sometimes lookedless practical. To replace the isolation material function is often air cavity by low pressure or vacuum.Making degree of vacuum exist 100 % at air cavity is not easy. Usually there is still air in cavity will cause thehappening of hot transfer of natural convection between both the surface of former cavity. Coefficient ofconvection hot transfer (h) at one cavity of besides influenced by different temperature it also influenced bycavity geometry, orient from cavity and characteristic that had by fluid, for example : pressure, temperature,specific mass, conductivities and viscosities.Problems that arising out in this research is how is the relation coefficient of convection hot transfer(h), number Nusselt (Nu), number of Rayleigh and resistance thermal (R) with the variation of degreevacuum exist at a cavity.Target of this research is to get the relation empirically of convection hot transfer coefficient (h),number Nusselt (Nu), number of Rayleigh and Resistance Thermal (R) with the existence of degree variationof vacuum exists at a cavity. While the benefit in this study is hamper the speed of hot transfer betweensystems with the media in around.
Improving the hygiene of jamu sellers in Malang through the provision of appropriate technology Nurwidodo , N.; Mulyono , M.; Fauzi, Ahmad
Journal of Community Service and Empowerment Vol. 2 No. 3 (2021): December
Publisher : Universitas Muhammadiyah Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22219/jcse.v2i3.16541

Abstract

Jamu (herbal medicine) is included in traditional health drinks that its processing is often less hygienic. The purpose of this community service program is to improve the cleanliness of the herbal medicine-making process in the herbal medicine group in Malang through the provision of hygienic herbal medicine processing machines. Community service activities were carried out in 2018 by involving herbal medicine groups in Tegalgondo and Jetis Villages, Malang. The community service activities included analyzing the conditions and needs of partners, designing herbal medicine machines as needed, as well as assisting the use of machines. The implementation methods in this service program were discussion and training. The result of this service activity was an increase in partner knowledge regarding the importance of hygiene and the use of appropriate technology in herbal medicine processing. After the training was carried out, service partners began to be moved to process jamu more hygienically. Furthermore, assistance and technology-based marketing training activities also need to be carried out.
Design of bionic prosthetic leg Aldiansyah Wahyu Pratama; Daryono Daryono; Mulyono Mulyono
Journal of Energy, Mechanical, Material, and Manufacturing Engineering Vol. 7 No. 2 (2022)
Publisher : University of Muhammadiyah Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22219/jemmme.v7i2.21312

Abstract

Along with the increase in the number of Indonesian people who are physically disabled and the number of cases of leg amputations above the knee, the need for prosthetic limbs in Indonesia is also increasing. Prosthetic limbs are tools to replace lost limbs caused by birth defects, amputations, or disease. The bionic prosthetic leg has a long-term useful purpose, as well as supporting the rights of people with disabilities. The device helps the above-the-knee amputee. To design a bionic prosthetic leg, a biomechanical analysis of work is needed to obtain a walking pattern in humans and an analysis of the structure and working material to obtain a safe and comfortable material for use in a bionic prosthetic foot. This bionic leg prosthetic uses an automatic system using an Electromyography (EMG) sensor as a signal picker for the muscles, Arduino Mega 2560 as an input signal processor which is then converted into an output signal and Planetary gear as a knee joint transmission so that the body does not fall forward or backward. The results of the analysis using Autodesk Inventor software on the prosthetic of the bionic leg can withstand a pressure of 404.526 MPa, withstand a reaction force of 354.576 N and a reaction moment of 15.4073 N. So based on the results of the bionic prosthetic leg is very safe and comfortable when used on people with disabilities.
The influence of drying temperature variation on the quality of bagasse bio-pellet Mohammad Jufri; Billy Muhammad; Mulyono; Daryono; Heni Hendaryati; Ali Saifullah
Journal of Energy, Mechanical, Material, and Manufacturing Engineering Vol. 8 No. 1 (2023)
Publisher : University of Muhammadiyah Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22219/jemmme.v8i1.29192

Abstract

Demand for bio-pellet as alternative energy has widely increased. It occurs as people are aware of energy-saving for today and future living. Therefore, the increment in bio-pellet quality has also been a concern. The bio-pellet quality can be influenced by the materials (biomass) and its treatments. One of the treatments for the bagasse bio-pellet is drying. It is conducted to lessen its moisture before it is produced by the ring die pellet mill. The influence of drying temperature on bagasse bio-pellet quality is the focus of this experiment. The result shows that the different drying temperature for bagasse bio-pellet gives a different quality. However, those qualities comply with the requirement of the Indonesian National Standard for biomass energy.
Performance test of oceanic wave power generator with pendulum system Ilmi, Achmad Zidan Bahrul; Mulyono, Mulyono; Sofi’i, Yepy Komaril
Journal of Energy, Mechanical, Material, and Manufacturing Engineering Vol. 9 No. 1 (2024)
Publisher : University of Muhammadiyah Malang

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

Abstract

A plentiful oceanic wave leads to the utilization of this energy into electricity. An oceanic wave power generator with a pendulum system is one of the innovations that can generate electricity from the ocean. This research aimed to identify the energy from the oceanic wave power generator with a pendulum system. It was conducted by experimenting with the pendulum rod that spins the gearbox in the generator. It was intended to measure the obtained electric power by variating the pendulum mass with the average oceanic wave speed. The research finding shows that the generator results in a maximum of 33 watts of electric power, while the lowest power is 9 watts with a pendulum mass of 0,6 kg.
Kajian Sejumlah Metode untuk Mencari Solusi Numerik Persamaan Diferensial Mulyono, M
Prosiding Konferensi Nasional Penelitian Matematika dan Pembelajarannya 2016: Prosiding Konferensi Nasional Penelitian Matematika dan Pembelajarannya
Publisher : Universitas Muhammadiyah Surakarta

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

Abstract

Penelitian ini bertujuan untuk membandingkan sejumlah metode untuk mencari penyelesaian numerik dari persamaan diferensial, khususnya persamaan diferensial biasa. Pada penelitian ini dibandingkan 3 metode untuk mencari penyelesaian numerik persamaan diferensial biasa, yaitu : metode Euler, metode Heun dan metode Runge-Kutta Orde ke-4. Dua faktor utama yang paling penting untuk dipertimbangkan dalam membandingkan metode-metode tersebut adalah akurasi penyelesaian numerik dan waktu komputasinya. Dalam penelitian ini digunakan software MATLAB sebagai bahasa pemrogramannya. Hasil dari penelitian ini adalah bahwa hasil dari metode Runge Kutta orde 4 paling mendekati solusi analitiknya, sehingga metode Runge Kutta orde 4 adalah paling bagus, dibanding metode Euler dan metode Heun.
Pemanfaatan Teknologi Tepat Guna Berbasis Solar Cell untuk Mengatasi Permasalahan IRT Nelayan Sapeken Kabupaten Sumenep Hindun, Iin; Mulyono, M.; Husamah, H.
International Journal of Community Service Learning Vol. 3 No. 4 (2019): November 2019
Publisher : Universitas Pendidikan Ganesha

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (863.587 KB) | DOI: 10.23887/ijcsl.v3i4.21791

Abstract

Artikel ini bertujuan menganalisis implementasi pemanfaatan TTG berbasis solar cell untuk mengatasi permasalahan IRT Nelayan Sapeken. Mitra kegiatan yaitu Dapoer Emmak dan Sapeken Sejahtera. TTG yang diimplementasikan berupa alat pembuat abon dan perahu. Instrumen kegiatan meliputi materi presentasi, produk, alat dokumentasi, buku catatan, dan instrumen evaluasi. Metode pengabdian adalah survey, demonstrasi, dan praktek langsung, dan evaluasi. Data dikumpulkan dengan terlibat langsung dalam aktivitas masyarakat, pengambilan sampel produk dan perekaman dokumen serta kegiatan. Data dianalisis secara deskriptif. Kegiatan dianggap berhasil bila TTG mahir digunakan oleh mitra, persentase keterlibatan dan keaktifan mencapai ≥75%, ada peningkatan kuantitas dan kualitas produk/hasil usaha, income meningkat, dan semua tahapan kegiatan terlaksana. Berbagai kegiatan dilakukan pengabdi, yaitu koordinasi dan konsolidasi tim, serta penyamaan persepsi dengan mitra, pendesainan, penyiapan, dan pembuatan, penyerahan TTG, pelatihan, dan pemanfaatan TTG oleh mitra, serta monitoring dan evaluasi. Dpat disimpulkan bahwa kegiatan pengabdian telah dilaksanakan dengan sangat baik, sesuai dengan target yang telah ditetapkan.  Kata Kunci: Abon, perahu, Sapeken, solar cell, teknologi tepat guna. 
AIR CONDITIONING LOAD AND ANALYSIS CALCULATION OF AIR DISTRIBUTION IN VEHICLE CABINS BRIDGE MAINTENANCE INSPECTION Mulyono, Mulyono; Sadewa, Maulana; Soegiharto, Achmad Fauzan Hery; Restu, Firdausa Retnaning
Jurnal Rekayasa Mesin Vol. 16 No. 2 (2025)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/jrm.v16i2.2217

Abstract

Cabin comfort is essential for an inspector to work focusly and produce valid data in a bridge maintenance vehicle. The use of an air conditioner (AC) in the cabin of this vehicle is a concern for the inspector's comfort while supervising the bridge. Choosing an inappropriate AC can result in excessive energy consumption or inadequate thermal comfort. Furthermore, the transparent windows and windshields of glass elevate the temperature and allow sunlight to invade the room. Consequently, it intensifies the cooling demand. Considering this situation, this study focuses on calculating the cooling load in the cabin and simulating the thermal performance using computational fluid dynamics (CFD). The simulations were conducted using Ansys 2023 software, with a runtime of 4 minutes and 2,400 iterations. It is to achieve a cabin temperature within the comfort range of 22–26°C. The cabin is designed for two inspectors. At an airflow velocity of 3 m/s, the simulation yielded a maximum temperature of 40°C and a minimum of 21.13°C. Reducing the airflow to 2 m/s resulted in a range of comfortable temperatures for the cabin. In conclusion, the simulation results fulfill the criteria and confirm that an airflow velocity of 2 m/s is sufficient to maintain the comfortable temperature in the cabin.
Co-Authors Achmad Fauzan Hery Aldiansyah Wahyu Pratama Ali Saifullah Billy Muhammad Daryono Daryono Daryono Desrina, R Fauzi Ahmad Muda Firdaus, Shodik Nur Hendaryati, Roro Heni Heni Hendaryati Husamah Husamah Iin Hindun Ilmi, Achmad Zidan Bahrul Mohammad Jufri Nurwidodo, Nurwidodo Restu, Firdausa Retnaning Sadewa, Maulana Wibisono, MS Yepy Komaril Sofi’i