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All Journal Jurnal Energi Dan Manufaktur FLYWHEEL : Jurnal Teknik Mesin Untirta ELKOMIKA: Jurnal Teknik Energi Elektrik, Teknik Telekomunikasi, & Teknik Elektronika Jurnal Rekayasa Mesin Info-Teknik Briliant: Jurnal Riset dan Konseptual JTERA (Jurnal Teknologi Rekayasa) Turbulen : Jurnal Teknik Mesin Jurnal Teknik Pertanian Lampung (Journal of Agricultural Engineering) Jurnal Penelitian dan Pengabdian Kepada Masyarakat UNSIQ Jurnal Rekayasa Hijau Logic : Jurnal Rancang Bangun dan Teknologi Journal of Engineering and Scientific Research (JESR) Jurnal Aplikasi Dan Inovasi Ipteks SOLIDITAS Jurnal Energi dan Teknologi Manufaktur Abdi Dosen : Jurnal Pengabdian Pada Masyarakat STEAM Engineering : Journal of Science, Technology, Education And Mechanical Engineering Scientific Journal of Mechanical Engineering Kinematika Reswara: Jurnal Pengabdian Kepada Masyarakat Jurnal Pengabdian dan Pemberdayaan Nusantara (JPPNu) Bulletin of Science Education Jurnal Teknologi Jurnal Ilmiah Fakultas Sains dan Teknik Universitas Nusa Cendana Logic : Jurnal Rancang Bangun Dan Teknologi Jurnal Teknik Mesin, Industri, Elektro dan Informatika Journal of Creative Student Research International Journal of Community Engagement Payungi Student Research Journal Journal of Mechanical Engineering Jurnal Polimesin Venus: Jurnal Publikasi Rumpun Ilmu Teknik Evrimata: Journal of Mechanical Engineering
Asrori Asrori
Politeknik Negeri Malang
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The effect of solar tracker movement on the thermal performance of solar cooker using the Fresnel lens solar concentrator Asrori Asrori; Sugeng Hadi Susilo; Kris Witono; Putu Wijaya Sunu
Jurnal POLIMESIN Vol 20, No 2 (2022): August
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jpl.v20i2.2652

Abstract

Solar energy as renewable energy has great potential to supply the world's energy needs. Solar thermal energy can be used for domestic energy purposes (cooking and water heating). The purpose of this research is to develop, design and analyze the performance of a solar cooker from the concentration of direct normal irradiance (DNI) by the Fresnel lens on the receiver/absorber as a cooking vessel. One form of improving the performance of the Fresnel solar concentrator (FSC) is the addition of an automatic solar tracker installation using hydraulic actuators. The solar tracker is varied, every 5 and 10 minutes, respectively. The solar cooker performance test was conducted outdoors at the Mechanical Engineering Department of State Polytechnic of Malang (7.9553 oS and 112.6125 oE) in April 2021. The method used actual experimental research. The measurement of solar radiation uses a solar power meter SPM-1116SD and the tracker's movement. At the same time, the temperature parameters (water temperature, receiver wall temperature, focal point temperature, ambient temperature) are measured by the temperature data logger. The concentrated solar cooker type design uses a fresnel lens with a capture area of 0.785 m2 and a focal ratio of 0.88. The main components of this solar cooker design consist of: a large fresnel lens that functions as a concentrator of sunrays, a cone-shaped cooking stove as a solar collector (receiver), and a hydraulic actuator-type solar tracker unit. Initial tests showed that the solar radiation, In = 789.00 W/m2, obtained the focal point temperature at the receiver, Tf = 930.10°C. Meanwhile, the thermal efficiency (Th) of a solar cooker with a solar tracker that moves every 10 minutes and 5 minutes is 12.7% and 33.66%, respectively. The increase in the thermal efficiency of the solar cooker is very significant, which is 2.65 times. This shows that the more accurate and continuous movement of the tracker will increase the thermal efficiency of the designed Fresnel solar cooker.
The Effect of embossing roll roughness and forming temperature on damage to menthol-coated aluminum foil on packaging Ludfi Setiawan; Asrori Asrori
Jurnal POLIMESIN Vol 21, No 4 (2023): August
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jpl.v21i4.4104

Abstract

The Aims of this study are to determine  the effect of embossing roll roughness and forming temperature on the damage of menthol-coated aluminum foil on the packaging, and to determine the best temperature and embossing roll roughness on the quality of the menthol coating on the packaging. In this study, the independent variables were embossed roll wave (roughness level 1000,500.0 µm) and menthol foil temperature (22, 24, 26, 28, 30, 32, 34, 36, 38, 40, 42, 44, 46 °C) to be manipulated, observed, and measured to know the effect with the dependent variable. And because the established variable is the quantity of broken menthol foil packaging that is measured via way of means of calculating the share of period of menthol foil packaging this is torn as compared to the whole period of the foil. Based on the effects of the discussion, it can be concluded that the forming temperature and the embossing roll roughness affect the damage to the menthol packaging layer. In the ANOVA follow-up test, the lowest and best mean value for the forming temperature is at T12 or 44°C, not at T13 or 46°C because at these temperatures the menthol layer on the package is too hot and starts to damage the coating and the lowest and best average for the roughness level of embossed rolls is at E3 with a roughness value of 0 µm (fine).
Hasil Variasi Media Quenching Terhadap Kekuatan Tarik Baja S45C Sulistyono Sulistyono; M Hasyim Nurwansyah; Asrori Asrori
Jurnal Rekayasa Mesin Vol 18, No 2 (2023): Volume 18, Nomor 2, Agustus 2023
Publisher : Mechanical Engineering Department - Semarang State Polytechnic

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32497/jrm.v18i2.3873

Abstract

Dalam penelitian ini, baja S45C akan diuji dan dibandingkan nilai kekuatan tarik yang dimiliki sebelum dan setelah diberikan perlakuan panas Quench Hardening. Suhu pemanasan yang digunakan dalam proses perlakuan panas ialah 850 ℃, dengan holding time yaitu 30 menit. Media quenching yang digunakan yaitu “Es Batu Ditambah Air”, “Larutan NaCl 3,45%”, dan “Oli SAE 10W-30”. Hasil dari pengujian tarik menunjukkan bahwa media quenching “Es Batu ditambah Air” dan media quenching “Larutan NaCl 3,45%” menghasilkan rata-rata nilai kekuatan tarik 156,27 MPa dan 228,55 MPa, sementara pada raw material dan media quenching “Oli SAE 10W-30” menghasilkan rata-rata nilai kekuatan tarik 707,03 MPa dan 1.116,30 MPa.
Pengaruh Jenis Sensor terhadap Persentase Eror Sensor Parkir Berbasis STM32 Qais Rakhmanda Yoga Pratama; Asrori Asrori
Jurnal Teknik Mesin, Industri, Elektro dan Informatika Vol. 3 No. 3 (2024): September : JURNAL TEKNIK MESIN, INDUSTRI, ELEKTRO DAN INFORMATIKA
Publisher : Pusat Riset dan Inovasi Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/jtmei.v3i3.4120

Abstract

This study evaluates the impact of sensor type on the percentage error in an STM32-based parking sensor system by comparing the HY-SRF05 and JSN-SR04T ultrasonic sensors. The aim of this research is to determine the accuracy of each sensor in distance measurement and identify the more reliable sensor for parking sensor applications. The methodology includes installing both sensors on the STM32 system, measuring distances at various intervals, and analyzing the percentage error. The results indicate that the HY-SRF05 sensor exhibits a lower percentage error compared to the JSN-SR04T across all tested distances, from 50 cm to 300 cm. The average percentage error for the HY-SRF05 is 1.78%, while for the JSN-SR04T it is 2.6%. The conclusion of this research is that the HY-SRF05 sensor is more accurate and reliable than the JSN-SR04T for STM32-based parking sensor applications.
The Assembly and Installation of Solar Powered Public Street Lights (PJU) at Panti Asuhan Putri Aisyiah Dau Malang Gumono; Sugeng Hadi Susilo; Agus Setiawan; Asrori
International Journal of Community Engagement Payungi Vol. 1 No. 2 (2021): International Journal of Community Engagement Payungi
Publisher : Yayasan Payungi Smart Madani

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (702.264 KB) | DOI: 10.58879/ijcep.v1i2.13

Abstract

The paper discusses the problem of increasing security for residents in panti asuhan putri aisiyah dau malang area, Jl. Engineer Soekarno II no. 4 RT 01 RW 01 Dadaprejo Village, Junrejo District, Malang Regency. One of the most important is lighting. The installation of public street lighting is still minimal, so it is far from meeting security and safety standards. In order to ensure the availability of safe and reliable street lighting, training on the assembly of solar-powered street lighting (PJU) was conducted at panti asuhan putri aisiyah dau malang, Jl. Engineer Soekarno II no. 4 RT 01 RW 01 Dadaprejo Village, Junrejo District, Malang Regency. Prior to the assembly process for street lighting, a brief training was conducted on the assembly of solar-powered PJU lampposts and their installation, for residents at panti asuhan putri aisiyah dau malang Jl. Engineer Soekarno II no. 4 RT 01 RW 01 Dadaprejo Village, Junrejo District, Malang Regency., so that he has skills that can be developed. The result of the PKM is an increase in the knowledge and skills of the residents of the panti asuhan putri aisiyah dau malang in the field of fabrication and installation of solar-powered PJU lights. In addition, the installation of 3 Solar Powered PJU lights that are safe and reliable, and have an impact on increasing environmental security and residents' activities at night in the panti asuhan putri aisiyah dau malang. Keywords:  Public Street Lighting, Solar Cell Lamps, Lamp Posts
The Comparison of Performance Polycrystalline and Amorphous Solar Panels under Malang City Weather Conditions Witono, Kris; Asrori, Asrori; Harijono, Agus
Bulletin of Science Education Vol. 1 No. 2 (2021): Bulletin of Science Education
Publisher : CV. Creative Tugu Pena

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51278/bse.v1i2.107

Abstract

Amorphous Silicon type solar panels, which had a bad reputation in the past, are now considered very reliable, with several significant advantages over Mono Crystalline and Polycrystalline solar panels. Research on the effectiveness of the capture power of Amorphous Silicon compared to Silicon Crystalline solar panels types is still not much done.The purpose of this study was to explain the effect of solar radiation on the capture power of polycrystalline and amorphous solar panels.This research method includes solar panel installation, measurement of solar radiation, measurement of the resulting current and voltage, data analysis, discussion, and conclusions. The independent variables of the study were the resulting current and voltage, and the type of solar panels (Polycrystalline and Amorphous). The dependent variable of this research are actual power and efficiency.The results showed that the greater the solar radiation, the higher the actual power and efficiency produced by the solar panels. Polycrystalline type solar panels are capable of producing higher average actual power and average efficiency, namely 86.83 W and 11.92%, compared to amorphous solar panels, namely 43.88 W and 6.01%. Keywords: Monocrystalline, Polycrystalline, Normalized Power Output Efficiency, Performance Ratio
ANALISIS PENGARUH TEMPERATUR PENDINGINAN PADA LITHIUM-BATTERY BOX TERHADAP PROSES CHARGING PADA SKUTER TENAGA SURYA Kurnia, Arindrian; Asrori, Asrori
Scientific Journal of Mechanical Engineering Kinematika Vol 8 No 2 (2023): SJME Kinematika Desember 2023
Publisher : Mechanical Engineering Department, Faculty of Engineering, Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/sjmekinematika.v8i2.264

Abstract

When the battery is used, it will generate heat due to chemical processes and external factors like sunlight that make the battery hot on the solar panel-based transport e-scooter. Indirectly, the battery also receives heat from the surrounding environment. Battery temperature also affects the performance, efficiency, and performance of the battery, so to maintain battery temperature, cooling is needed. This study aims to determine the variation of battery cooling temperature on the charging power of LiFePO4 batteries on e-scooters with solar panels. This research method is carried out by making a battery-cooling device as a box with active cooling using a cooling fan to cool the battery inside. After that, it makes a management and monitoring tool for the battery cooling system to regulate and measure the temperature of the ESP32-based battery. After conducting research and data processing, it can be concluded that the advantages of installing a LifePO4 battery cooling system on an e-scooter using solar panels can increase charging power. From all the data obtained, the temperature when charging at 25oC has a power that is 19% greater than the 35oC temperature on the battery
STUDI KELAYAKAN PEMBANGKIT LISTRIK TENAGA SURYA UNTUK PENERANGAN DI LOKASI WISATA PANTAI GEMAH TULUNGAGUNG JAWA TIMUR Udianto, Pondi; Asrori, Asrori; Yudianto, Eko
INFO-TEKNIK Vol 21, No 2 (2020): INFOTEKNIK VOL. 21 NO. 2 DESEMBER 2020
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/infotek.v21i2.10050

Abstract

The condition of electric energy at Gemah beach on the south coast of Tulungagung has not been fully supplied by PLN, so it is necessary to take advantage of renewable energy. This study aims to calculate the need for electrical energy at Gemah beach and calculate the number of solar panels and the required generating capacity. From the calculation results obtained: Total load energy per day 17392 Wh, Total load Ah requirement per day = 362 Ah, and need battery with capacity = 1358 Ah, capacity of selected battery in Amp-hour is 800 Ah, batteries in parallel is 2, Number of batteries in series = 24, Total number of batteries = 48, capacity of total battery is 1600 Ah, Total kilowatt-hour capacity of battery = 76.8 kWh. Meanwhile, for the purposes of generation required: The number of solar modules to meet the load requirements = 28 modules. Generating capacity = 5.6 kWp, rounded off to 6 kWp
The Performance Comparison of Battery Charging Using MPPT and PWM Controllers on Amorphous Solar Panel-Based E-Scooters Asrori, Asrori; Adiwidodo, Satworo; Faizal, Elka; Martawati, Mira Esculenta; Mardyansyah, AA
Journal of Engineering and Scientific Research Vol. 6 No. 1 (2024)
Publisher : Faculty of Engineering, Universitas Lampung Jl. Soemantri Brojonegoro No.1 Bandar Lampung, Indonesia 35141

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jesr.v6i1.151

Abstract

Solar Panel-Based Electric Scooter (E-Scooter) is an electric vehicle in the form of a scooter that uses solar panels as a source of electrical energy for charging batteries and a BLDC motor as a wheel drive. With the development of the E-Scooter, it is necessary to know how to charge the battery. The purpose of this research is to determine the type of Solar Charge Controller (SCC) that can maximize battery charging on the E-Scooter. The research method is to compare SCC MPPT and SCC PWM. The research was conducted by monitoring the output current and voltage of the solar charger controller generated by the solar panels every 10 minutes. After that the recorded data will be stored in the monitoring device's storage memory for further processing. The results of the data that have been obtained on the e-scooter using the SCC MPPT type are capable of producing a power of 9.05 W with a current value of 0.33 A and a voltage of 27.47 V. Meanwhile, the PWM type SCC is capable of producing 8.22 W of power with a current value of 0.30 A and a voltage of 27.42 V. So that the MPPT type SCC is more economical than PWM for charging when the e-scooter is not moving. For the running conditions of the MPPT type SCC e-scooter is capable of producing 7.36 W of power with a current value of 0.27 A and a voltage of 27.26 V. Meanwhile, the PWM type SCC is capable of producing a current of 6.81 W with a value of 0.25 A and a voltage 27.24 V. So that the MPPT type SCC is more efficient than PWM for charging when the e-scooter is running.
Analisis Pengaruh Kepekatan Asap Terhadap Waktu Respon Alat Pendeteksi Asap Berbasis Arduino Ridho Ilham; Asrori Asrori
Venus: Jurnal Publikasi Rumpun Ilmu Teknik  Vol. 3 No. 5 (2025): Venus: Jurnal Publikasi Rumpun Ilmu Teknik
Publisher : Asosiasi Riset Ilmu Teknik Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61132/venus.v2i4.454

Abstract

Work safety is always a priority, especially in the mining world which has a high potential for danger. Therefore, there are many regulations that must be obeyed, including the prohibition of smoking in the cabin of the Dump Truck unit. This study aims to design a cigarette smoke detector in the cab of a dump truck as a form of warning to drivers who violate the ban on smoking in the cab. The method used in this research is a quantitative method by conducting experiments. The research conducted is to analyze the effect of smoke thickness levels (20%, 40%, and 60%) on different sensor types (MQ-4 and MQ-7). The expected result is the effect of smoke thickness variation on the response time of different sensors.
Co-Authors Adikusuma, Thomas Agus Harijono AGUS SETIAWAN Agus Sujatmiko Agus Sujatmiko Akhmad Faizin Alfarisyi, Mirza Fathus Syifa Ariani Ariani Ariani Ariani Cucuk Evi Lusiani Dani, Agus Dony Perdana Eko Naryono Eko Naryono Eko Yudiyanto Eryk, Eryk Eryk, Irwan Heryanto Faizal, Elka Faizul Ahmad Jatmiko FATHUR ROHMAN gumono Gunawan, Chandra Hadi Susilo, Sugeng Harahap, M. Zusriansyah Fahrudin Hari Rarindo Harie S. Jaya Harijanto, Priya Surya Harijono, Agus Haris Puspito Buwono Hasan Abdillah Helmy, Abdullah Heryanto Eryk, Irwan Heryanto, Irwan Hilmi Iman Firmansyah Imam Mashudi Jaya Harie Satiyadi Khalimatus Sa'diyah Kris Witono Kris Witono Kurnia, Arindrian Lisa Agustriyana Ludfi Setiawan Lulut W Lusiani, Cucuk Evi M Hasyim Nurwansyah M. Hilmi Syiva Afiat M. N. Wahyudi Abdullah Mardyansyah, AA Martawati, Mira Esculenta Maskur Maskur Mira Esculenta Martawati Mohammad Noor Hidayat Mohammad Noor Hidayat Mokhammad Khatami Muhamad Hanifudin Muhamad Zulvi Anam Muhammad Fakhruddin Nanang Qosim Novembrian Isam Dinata Nugroho, Pipit Wahyu Nurhadi - Pondi Udianto Pranoto, Bayu Putu Wijaya Sunu Qais Rakhmanda Yoga Pratama R.N. Akhsanu Takwim, R.N. Akhsanu Rahmad, Cahya Rahmat Muhamad Hudan Rahmat, Muhamad Hudan Raihan Insan Nararya RAMDHANI, ACHMAD FAJAR Ridho Ilham Rifa’i, Muhamad Ronilaya, Ferdian Sa'diyah, Khalimatus Santoso, Asfari Hariz Sapto Wibowo Saputra, Masramdhani Satworo Adiwidodo Subagiyo Subagiyo Sugeng Hadi Sugeng Hadi Susilo Sugeng Hadi Susilo Sugeng Hadi Susilo Suharto, Nugroho Sulistyono Sulistyono Sulistyono Sulistyono Suyanta Suyanta Syamsul Ph.D M.A. Hadi Walid, Achmad Yudianto, Eko Yuliyanto, Catur Fajar Zainuri, Ach. Muhib