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All Journal Journal of Community Development Jurnal Teknik Terapan (J-TETA) Journal of Engineering Science and Technology
Dafit Ari Prasetyo
Politeknik Negeri Jember
Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Electrical & Electronics Engineering Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Nursing Public Health Social Sciences

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Analisis Kualitas Briket Arang Kulit Kacang Tanah Dengan Perekat Biji Nangka Siti Diah Ayu Febriani; Fahmi Wahyu Kusuma; Dedy Eko Rahmanto; Dafit Ari Prasetyo
Jurnal Teknik Terapan Vol. 1 No. 2 (2022): Oktober
Publisher : P3M Politeknik Negeri Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (282.564 KB) | DOI: 10.25047/jteta.v1i2.19

Abstract

Bahan baku biomassa yang dapat dimanfaatkan salah satunya adalah Kulit Kacang Tanah dengan Perekat Biji Nangka, kulit kacang tanah dan biji nangka yang melimpah di sekitar masyarakat dan kurang dimanfaatkan. Tujuan dari penelitian ini adalah untuk mengetahui komposisi variasi perbandingan perekat terbaik briket dari kulit kacang tanah menggunakan perekat biji nangka dan membuat karakteristik briket terbaik. Metode penelitian yang digunakan adalah metode eksperimen dan karakteristik fisik briket. Hasil penelitian menemukan bahwa briket kulit kacang tanah menggunakan perekat biji nangka mendekati SNI dan tidak mendekati standar mutu komersial dan baku mutu briket inggris. Dimana pada komposisi ini memiliki nilai kalor sebesar 4.342,19 kal/g, kadar air 4,12%, dan kadar abu sebesar 3,8%. Hal ini menunjukkan bahwa bahan baku kulit kacang tanah melalui metode karbonisasi dapat digunakan sebagai bahan baku dalam pembuatan briket dan perekat biji nangka digunakan sebagai bahan perekat dengan pertimbangan pencampuran perekat atau variasi penggunaan perekat.
Konsep Rancang Bangun Smart Home Base Berbasis IOT untuk Skala Perumahan Duta Catur Pamungkas Putra; Imani Rizkia Dawami; Muhammad Rofiul Haq; Achmad Daffa Danang Luthfiansyah; Alfan Mubarok; Dafit Ari Prasetyo
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.v1i2.11

Abstract

World energy demand continues to increase by 45% until 2030 based on projections of the International Energy Agency (IEA) with an average increase of 1.6% per year. About 80% of these energy needs supplied by fossil fuels. This increase occurred due to population growth, industrialization, lifestyle changes, and the use of increasingly complex technology. The household sector is one of the sectors that require energy to meet daily needs. Researchers conducted a study of research results related to rooftop Solar Power Plants, the use of thermoelectric as a producer of electrical energy, and the use of septic tanks for household gas with digesters that have been published in Indonesian-language journals and proceedings. The concept of a smart home base is implemented assuming a simple housing design, in this design than a technical calculation of the feasibility of a Smart Home Base is carried out which considers efficient methods in the development and provision of energy independently based on renewable energy for cost savings and supports government programs abaout Indonesia Ketahanan Energi 2030. Renewable energy applied to the smart home base concept utilizes Solar Power Plants which are hybrid with Thermoelectric Generators and biogas to replace of the LPG stove. Utilization of IoT-based technology to optimize energy savings at home. The housing concept is assumed with a simple housing design with a daily energy consumption of 5,507 Wh and 1,336 watts of power. The solar system used is 450 Wp for as many as 8 units of solar panels, 12 v 200 Ah battery capacity of as many as 8 units of batteries, and inverters with a power of 2000 Watts.
Pelatihan Penggunaan Mesin Pengering Kopi Untuk Meningkatkan Keterampilan Petani Kopi Nur Faizin; Zeni Ulma; Dafit Ari Prasetyo; Yuli Hananto; Cahyaning Nur Karimah
Journal of Community Development Vol. 4 No. 2 (2023): December
Publisher : Indonesian Journal Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.47134/comdev.v4i2.159

Abstract

Improving human resource skills is one of the pillars in determining the increase in quality and quantity of production in a business. In the coffee plantation business sector, the skills of coffee farmers play an important role in the production process. The operation of the machines used is an absolute requirement for achieving effectiveness and efficiency in the process. One of them is a coffee drying machine obtained by the Sumber Kembang farmer group from previous community service activities. This must be accompanied by operating skills so that in this service activity training will be carried out on the use of coffee drying machines. The methods used were surveys, training and discussions. The result of this service activity is the achievement of increasing the skills of coffee farmers in terms of operating coffee drying machines. Achievement of service activities is carried out by providing feedback to partners in the form of questionnaires. The results of the questionnaire showed that respondents from partner members mostly gave positive responses to service activities in the form of coffee drying machine training.
Pemanfaatan Limbah Kotoran sapi Menjadi Biogas Sebagai Sumber Energi Listrik di Dusun Tegalmulyo, Kecamatan Bungatan, Situbondo MOH MUFID; Ellya Dwi Lestari; Nugroho Jerry Kurniawan; Nurul Nikmah; Ignas Oni Faentaono; Dafit Ari Prasetyo; Dety Oktavia Sulistiono; Azamataufiq Budiprasojo
Jurnal Teknik Terapan Vol. 5 No. 1 (2026): April
Publisher : P3M Politeknik Negeri Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25047/jteta.v5i1.99

Abstract

Electricity is a basic need, but access to electricity in remote areas remains limited due to geographic and infrastructure constraints. Tegalmulyo Hamlet, dominated by cattle farming, has traditionally disposed of manure waste without optimal utilization, thereby polluting the environment. This community service activity aims to process cow dung waste into electrical energy through a community-based Biogas Power Plant (PLTBg). The approach used is Participatory Rural Appraisal (PRA), which actively involves the community in the planning, construction, and management of the system. A 1 m³ digester installation produces a potential biogas of 8.65 m³/day, with a theoretical electrical energy of approximately 96.6 kWh per day. In implementation, energy utilization is adjusted to the capacity of a 1 kW generator, thus meeting the electricity needs of 1,866 Wh per day for street lighting, livestock pens, and one resident's home. This program not only provides renewable energy but also reduces environmental pollution and produces organic fertilizer from biogas residue.
The Free Fatty Acid Reduction Using Cacao (Theobroma cacao L) Bean Husk Charcoal In Used Cooking Oil Dafit Ari Prasetyo; Dicky Adi Tyagita; Cahyaning Nur Karimah; Alex Taufiqurrohman Zain; Umi Sholikah
Jurnal Teknik Terapan Vol. 5 No. 1 (2026): April
Publisher : P3M Politeknik Negeri Jember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25047/jteta.v5i1.126

Abstract

Used cooking oil if not well-maintained will give some problems to drainage system or surface water. Used cooking oil has the potential to be processed into energy. However, the high free fatty acid (FFA) as a result of the use of cooking oil makes the process into energy more difficult. Because the high free fatty acid content will cause the saponification reakction in making used cooking oil into energy. Cocoa bean husk charcoal (Theobroma cacao L) has a K2CO3 content that similar to its commercial product, and also contains some traces of silicates and sulfates so that it can increase the efficiency of free fatty acids removal in used cooking oil. In this study, tests were carried out to reduce FFA levels in used cooking oil using charcoal from cocoa bean husks activated with 10M of hydrochloric acid, varying the concentrations of 5, 7.5, and 10%-m/v, as well as the temperature treatment during the process of mixing used cooking oil with activated charcoal adsorbent, which was 75, 100, and 150°C. The best FFA reduction results were found in the C2T2 reactor which reached 75% of FFA removal, where the best concentration of cocoa bean husk charcoal as an adsorbent were 7.5%m/v and the temperature of the mixing process was 100°C which can remove FFA content from 2.72 to 0.64
Co-Authors Achmad Daffa Danang Luthfiansyah Alex Taufiqurrohman Zain Alfan Mubarok Azamataufiq Budiprasojo Cahyaning Nur Karimah Cahyaning Nur Karimah Dedy Eko Rahmanto Dety Oktavia Sulistiono Dicky Adi Tyagita Duta Catur Pamungkas Putra Ellya Dwi Lestari Fahmi Wahyu Kusuma Ignas Oni Faentaono Imani Rizkia Dawami MOH MUFID Muhammad Rofiul Haq Nugroho Jerry Kurniawan Nur Faizin Nurul Nikmah Siti Diah Ayu Febriani Umi Sholikah Yuli Hananto Zeni Ulma