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All Journal JIPFRI (Jurnal Inovasi Pendidikan Fisika dan Riset Ilmiah) JST ( Jurnal Sains Terapan ) JTT (Jurnal Teknologi Terpadu) Jurnal Ilmiah Universitas Batanghari Jambi J-Dinamika: Jurnal Pengabdian Kepada Masyarakat Journal of Renewable Energy and Mechanics Journal of Community Development ARMATUR : Artikel Teknik Mesin dan Manufaktur Journal of Engineering Science and Technology
Risse Entikaria Rachmanita
Politeknik Negeri Jember
Aerospace Engineering Agriculture, Biological Sciences & Forestry Automotive Engineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Economics, Econometrics & Finance Education Engineering Industrial & Manufacturing Engineering Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mathematics Mechanical Engineering Nursing Physics Public Health Social Sciences Other

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Perancangan Perancangan Sistem Pengukuran Kapasitansi Crude Oil Menggunakan Interdigital Capasitors (IDCs) Berbasis Arduino Uno Risse Entikaria Rachmanita; Haerul Ahmadi
JIPFRI (Jurnal Inovasi Pendidikan Fisika dan Riset Ilmiah) Vol 3 No 2 (2019): JIPFRI (Jurnal Inovasi Pendidikan Fisika dan Riset Ilmiah) - November 2019
Publisher : Program Studi Pendidikan Fisika STKIP Nurul Huda

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (343.136 KB) | DOI: 10.30599/jipfri.v3i2.471

Abstract

Arduino UNO R3 is one of the cheapest and easiest microcontroller boards that has great potential to be used as a basis for the measurement system. This study aims to develop measurement system of crude oil capacitance by using IDCs(Interdigital Capacitors). By knowing the value of crude oil capacitance, the crude oil permittivity value can be calculated. The crude oil permittivity value data is extremely needed in making crude oil heating systems using microwaves. The study used IDC sprinted on a PCB board with a copper layer as the electrode. Then, the system measurement results were compared with the results of PM 6303 RCL meter Phillip type A frequency measurement of 1 kHz which was used as reference data to determine the extent of measurement errors. From the results obtained, it is known that the error value of the Arduino UNO R3 based capacitance repeatability measurement is 0.47%. While the results of the linearity test measurement of crude oil capacitance measurement of temperature increases using the Arduino Uno-based IDCs sensor, the R2 value is 0.87. Thus it can be seen that the Arduino UNO R3-based capacitance measuring device has quite good sensor characteristics.
Pengaruh Sudut Kemiringan Ruang Masak dan Penggunaan Lensa Fresnel terhadap Performa Kompor Surya Tipe Kotak Risse Entikaria Rachmanita
Jurnal Teknologi Terpadu Vol 8, No 1 (2020): JTT (Jurnal Teknologi Terpadu)
Publisher : Pusat Penelitian dan Pengabdian Kepada Masyarakat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32487/jtt.v8i1.806

Abstract

Performance test on box solar cooker with variations in the inclination angle of the cook room and variations of the cook room cover have been carried out. The variations angle of the cook room are 10°, 20° and 30° while the cook room cover uses 2 variations namely glass and a combination of fresnel glass. The size of the solar cooker is 60 x 60 x 40 cm with a thickness of 0.9 cm. The test was conducted in the car park behind the Engineering Building Politeknik Negeri Jember at 10:00 to 14:00 with recording every 10 minutes. The highest average solar cooker efficiency was found in solar cooker 4 with a cooking room tilt angle of 30° and using a fresnel glass combination cook room cover, the efficiency is 6.7% on the first day of testing. The highest average cooking power was also found in solar cooker 4 of 24.7 W on the second day of testing. The highest water suhue was found in solar cooker 4 at 90°C on the third day of testing. 
PERANCANGAN PEMBANGKIT LISTRIK TENAGA SURYA UNTUK PENERANGAN JALAN UMUM (PJU) DI DUSUN KARANG TENGAH DESA JATISARI KABUPATEN LUMAJANG Risse Entikaria Rachmanita
Jurnal Teknologi Terpadu Vol 10, No 1 (2022): JTT ( Jurnal Teknologi Terpadu)
Publisher : Pusat Penelitian dan Pengabdian Kepada Masyarakat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32487/jtt.v10i1.1289

Abstract

Permasalahan yang terjadi di Dusun Karang Tengah Desa Jatisari Kecamatan Tempeh Kabupaten Luamajang adalah kurangnya fasilitas penerangan jalan umum menuju perkebunan petani. Minimnya fasilitas umum berberdampak pada ketentraman dan kenyamanan hidup masyarakat, Kegiatan penelitian di dusun karang tengah dilaksanakan untuk menyelesaikan permasalahan yang terjadi dilingkungan tersebut. Salah satu solusi penyelesaian masalah adalah dengan peningkatan fasilitas umum berupa lampu penerangan jalan umum (PJU) berbasis solar system. Pengaplikasian teknologi solar system karena potensi tenaga surya di Dusun Karang Tengah Desa Jatisari Kecamatan Tempeh Kabupaten Lumajang cukup tinggi yaitu sekitar 1000-1300 W/m2 dan juga sebagai upaya memaksimalkan energi baru terbarukan (EBT). Langkah-langkah kerja meliputi observasi, perencanaan, penerapan dan pengujian. Komponen utama lampu PJU berbasis solar system adalah lampu AC, Modul surya, Solar Change Control dan Batrai. Berdasarkan perencanaan diperlukan lampu AC 20 Watt Baterai 65 Ah-12 V, Modul surya 100 Wp dan Change control 10 A untuk pemakaian selama 8 jam. Hasil akhir kegiatan penelitian ini adalah lampu PJU berbasis solar system telah mampu diterapkan di lingkungan Dusun Karang Tengah Desa Jatisari Kecamatan Tempeh Kabupaten Lumajang.
Studi Sistem Konversi Panas Buang Konduksi Berbasis Termoelektrik Generator Risse Entikaria Rachmanita
Jurnal Teknologi Terpadu Vol 8, No 2 (2020): JTT (Jurnal Teknologi Terpadu)
Publisher : Pusat Penelitian dan Pengabdian Kepada Masyarakat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32487/jtt.v8i2.923

Abstract

Thermoelectric generator (TEG) is an electrical generator device that converts temperature differences into electrical energy directly. Based on the Seebeck effect, if two different metals are connected at one end, then a temperature difference is given at the joint, there will be a difference in voltage between one end and the other. The purpose of this research is to create a conversion system based on thermoelectric generator (TEG) that utilizes the conduction heat of the biomass furnace when used for cooking, so that it can also be used as a power plant. This study used two TEG SP1846 peltiers with test variation used one TEG, two TEGs in series connection and twoTEGs in parallel connection. The results showed that the conduction heat conversion system of biomass furnace using 300 gr of sengon wood and two TEGs connected in series could produce a temperature on the hot side of the TEG maximum of 153.1oC and the temperature on the cold side of the maximum TEG of 106.4 oC. So that, the maximum voltage value of 7.19 volts and a maximum current of 0.023A and a power of 0.16537 watts.
Pemanfaatan Ethnoscience Berorientasi Pembelajaran Teknologi Tepat Guna pada Kelompok Guru Gugus Karangrejo Guna Menyiapkan Siswa Kompeten di Era Revolusi Industri 4.0 Ahmad Rofi'i; Azamataufiq Budiprasojo; Risse Entikaria Rachmanita; Dafid Ari Prasetyo
J-Dinamika : Jurnal Pengabdian Masyarakat Vol 5 No 2 (2020): Desember
Publisher : Politeknik Negeri Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25047/j-dinamika.v5i2.2395

Abstract

Salah satu upaya yang tengah dilakukan oleh pemerintah adalah dengan meningkatkan kompetensi guru dalam bidang pengajaran dan mengembangkan iklim keunggulan kompetitif serta terciptanya sumber daya manusia yang menguasai IPTEK adalah dengan memacu pendidikan yang berbasis teknologi dengan lingkungan sebagai sumber belajar. Kelompok Kerja Guru (KKG) Gugus Karangrejo Kecamatan Sumbersari yang merupakan kelompok diskusi guru pendidikan dasar se wilayah kerja unit Karangrejo Kecamatan Sumbersari. Berbasarkan analisis situasi dari wawancara dan observasi diperoleh permasalahan yang dialami mitra antara lain guru kurang memiliki pengetahuan dalam merencanakan dan mengekplorasi ide/ gagasan inovasinya dalam pembelajaran melalui kegiatan aktif serta dituangkan melalui alat pembelajaran berorientasi teknologi tepat guna, tenaga guru kurang menguasai keluasan materi dan perkembangan teknologi masa kini, terutama materi yang dapat dieksplorasi dalam alat pembelajaran , tidak adanya pelatihan khusus untuk melatih keterampilan dan kompetensi berbasis teknologi tepat guna melalui alat pembelajaran. Solusi yang dapat dilakukan adalah dengan memberikan pelatihan, pendampingan dan fasilitas pada mitra melalui tahapan survei, implementasi kegiatan hingga pelaksanaan evaluasi yang langsung berdampak pada mitra. Hasil diperoleh dari kegiatan pengabdian yaitu diperoleh banyak perubahan, mulai dari perubahan pemahaman dan pengetahuan tentang penerapan ethnoscience yang dapat diterapkan melalui penggunaan alat teknologi tepat guna. Alat ini dihasilkan oleh guru melalui pelatihan dan pendampingan oleh tim sebagai pemateri, pendamping dan penilai serta memberikan konfermasi mengenai metode dan proses kerja yang tepat sehingga dapat digunakan dalam pembelajaran secara efektif dan bermanfaat. Dari hasil wawancara dan observasi diperoleh bahwa penerapan ethnoscience dalam proses pembelajaran sangat bermanfaat dalam mengantarkan pemahaman siswa pada teknologi yang dilakukan secara langsung melalui alat teknologi tepat guna bahkan meningkatkan pemahaman dan pengetahuan mitra sehingga memberikan keyakinan untuk menerapkan lebih lanjut
Online Fun Physics Experiments Untuk Meningkatkan Motivasi Belajar Siswa Sekolah Dasar Yayasan Mutiara Bunda Jember Risse Entikaria Rachmanita; Zeni Ulma
Journal of Community Development Vol. 3 No. 1 (2022): August
Publisher : Indonesian Journal Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47134/comdev.v3i1.67

Abstract

Distance Learning which is currently being implemented as a result of the Covid-19 pandemic which has lasted for almost 1.5 years has caused psychological problems for students. The problems that arise include boredom due to monotonous learning, less interactive, and piling tasks. The level of education that is quite affected due to the implementation of Distance Learning is elementary school education. To overcome these problems, it is necessary to do a learning that is able to restore student motivation in learning. Mutiara Bunda Jember Foundation in collaboration with Renewable Energy Engineering lecturers at the Politeknik Negeri Jember held an interesting and interactive lesson entitled "Fun Physics Experiment". This activity was attended by 30 participants from various grade levels at the elementary school level. The results of the pretest and posttest questionnaires showed that there was an increase in participants' knowledge of light refraction, air pressure, combustion and pressure processes, heat transfer and density. In addition, after the "Fun Physics Experiment" activity, it was found that the level of interest of participants in Physics lessons increased, there were 7 participants who were very interested in Physics lessons and 23 participants were interested in Physics lessons.
Analisa Aerodinamika Airfoil NACA 4412 Bentuk SemiInverse-Tapper Tipe HAWT (Horizontal Axis Wind Turbine) Risse Entikaria Rachmanita; Bayu Rudiyanto
JST (Jurnal Sains Terapan) Vol 8, No 1 (2022): JST (Jurnal Sains Terapan)
Publisher : Pusat Penelitian dan Pengabdian kepada Masyarakat, Politeknik Negeri Balikpapan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32487/jst.v8i1.1428

Abstract

Wind turbine blades are using to drive generator, in the blades there are airfoils that can produce lift force. One that affects the airfoil performance is angle of attack (AOA). This study was conducted to analyze the aerodynamics of the NACA 4412 semi inverse-tapper airfoil. The material is using PVC with an airfoil size (length 20 cm, a base chord 13.26 cm and a tip chord 12 cm) at wind speed 3 m/s, 5 m/s, 7 m/s, 9 m/s and 12 m/s. The test was performed by experimental method by using wind tunnel and simulation with solidwork application, the results of two methods are compared for analysis. The results of research show that more fast the wind speed that strikes the airfoil, more greater the value of lift force and drag force, this is directly proportional to the value of lift coefficient and drag coefficient, the best angle of attack for airfoil type NACA 4412 semi inverse-tapper form angular position angle of attack 5 ° at wind speed 3 m/s. Keywords : angel of attack, HAWT, NACA 4412, semi inverse-tapper
Experimental Study of the Effect of Addition Glass Wool as Insulation Material on the Performance of Flat Plate Type Solar Collectors Risse Entikaria Rachmanita; Moh. Yusuf Syafi'i; Haerul Ahmadi
Journal of Renewable Energy and Mechanics Vol. 5 No. 02 (2022): REM VOL 5 NO 02 2022
Publisher : UIR PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (390.016 KB) | DOI: 10.25299/rem.2022.vol5.no02.9982

Abstract

Clean energy sources are becoming more and more common, and the use of solar thermal energy is also increasing. Indonesia gets sunlight all year round with a radiation radiation of 4.80 kWh/m2. The potential of solar energy can be utilized by converting solar radiation into new energy. The flat plate solar water collector is a simple solar energy conversion system for hot water production. This study aims to determine the amount of heat energy received by the solar collector, determine the temperature of the water that comes out (Tout) on the solar collector and determine the thermal efficiency (η) on the flat plate solar collector with the addition of glass wool as an insulation material. The results showed that the highest thermal energy that enters the solar collector is 832.58 W and produces an output water temperature of 320.7 K or 47.7 °C. The efficiency that can be achieved by the solar collector is quite efficient, which is 47.92%.
Development of welding discontinuity identification system using statistical texture feature extraction and ANN classification on digital radiographic image Haerul Ahmadi; Dandi Arifian; Tasih Mulyono; Bangun Pribadi; Risse Entikaria Rachmanita
ARMATUR : Artikel Teknik Mesin & Manufaktur Vol 4 No 1 (2023): Jurnal Armatur
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/armatur.v4i1.3330

Abstract

Discontinuity in welds is one of the causes of the quality of a connection in the material decreases function. Undamaged test with radiographic method is one of the tests to see the quality of a weld. The test results are radiograph images and evaluated by a radiographer. So this research is designed by optimizing a system to help the work of a radiography expert in identifying discontinuities by utilizing the Matlab Application. On this system uses the method of characteristic extraction and classification of neural networks (AAN). The system uses a characteristic extraction method with geometric invariant moment (GIM) algorithms and a gray level co-occurenece matrix (GLCM) as identification values used in the classification process. The calcification process uses a backpropagation-type multilayer Artificial Neural Network. The types of discontinuities used as data in this system are incompleted of penetration, crack, wormhole, and distributed porosity using a total of 800 datasets of radiograph imagery data. This data sharing is organized using k fold cross validation. The study conducted 15 experiments in system testing to prove the truth in identifying. The results of the experiment resulted in the highest average performance score reaching 93.33%
Rancang Alat Pencacah Rumput Pakan Ternak Tenaga Surya Berbasis Mikrokontroller Dengan Sinar UV Sebagai Penghigienis Rumput Euaggelion Eko Firman Setiawan Yohanes; Enno Agdelliano Diniardi; Muhammad Syah Radian; Agung Budi Prasetyo; Dinda Azzahra Permata Hati; Risse Entikaria Rachmanita
Journal of Engineering Science and Technology Vol. 1 No. 2 (2023): May
Publisher : Indonesian Journal Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47134/jesty.v1i2.6

Abstract

The innovation of a lawn mower using a microcontroller based solar energy system combined with UV LED light as a microbe minimizer aims to increase the innovation of the lawn mower by using the PLTS system from the use of sunlight that is cleaner and more efficient which replaces fossil fuels from diesel and turns grass into grass. The chopper results are more hygienic for ruminant livestock. The innovation of the lawn mower in this activity is presented in the form of a ready to use machine. The method used in the realization of the concept and design as well as the design of the tool is carried out by going through the literature study stages, designing tool design concepts, designing tool making, and testing tool performance. main frame: height 200cm, width 50cm, length 60cm with a thickness of 4 mm angled iron frame, chopper cover componen 50 cm long and 15cm wide, axle iron components 1,5 inch, the diameter of the chopping knife blade is a 30cm using an AC motor drive. Total electrical energy and tool performance generated by the solar power system on the Smart Machine Grass chopper for 2 hours when the engine is running without charging, the average voltages is 14,62 Volts, current is 2,08 Ampere, and produces an average energy of 6,18 watts and obtained the performance of the tool in chopping grass of 63,4 kg for 2 hours with an average of 2,64 kg every 5 minutes.
Co-Authors Achmad Archam Sya’bana Achmad Daffa Danang Luthfiansyah Achmad Noval Kurniawan Raroeng Agung Budi Prasetyo Ahmad Rofi'i Ahmadi, Haerul Alex Taufiqurrohman Zain Alfan Mubarok Anfasa Syahrul Habibie Azamataufiq Budiprasojo Bangun Pribadi Bayu Rudiyanto Cahya Irani Dafid Ari Prasetyo Dandi Arifian Dimas Dwi Febrian Dinda Azzahra Permata Hati Duta Catur Pamungkas Enno Agdelliano Diniardi Euaggelion Eko Firman Setiawan Yohanes Fila Ramadhan Harga Sri Rahayu Ningsih Herlina Oktavia Jihan Rahfida Haryati Lila Ratna Indah Lestari Michael Joko Wibowo Moch. Yusron Moh. Yusuf Syafi'i Muhammad Rifki Afdillah Muhammad Rofiul Haq Muhammad Syah Radian Rijal Daivu Duri Riofaldi Putra Aditama Setio Enwin Putra Ramadhani Silfiatul Mukaromah Siti Ainun Fiqiyah Tasih Mulyono Tio Alfian Nirvanto Yuli Hananto Zeni Ulma