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All Journal FLYWHEEL : Jurnal Teknik Mesin Untirta Martabe : Jurnal Pengabdian Kepada Masyarakat Jurnal Teknologi Dulang: Jurnal Pengabdian Kepada Masyarakat Jurnal Inovasi Teknologi Terapan
Dharta, Yuli
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MEMANFAATKAN ENERGI PADA SOLAR CELL UNTUK PARA NELAYAN PESISIR KEP. BANGKA BELITUNG Yudhi, Yudhi; Ocsirendi, Ocsirendi; Dharta, Yuli; Saputra, Gillang; Hera, Hera
Jurnal Pengabdian Masyarakat Polmanbabel Vol. 4 No. 01 (2024): DULANG : Jurnal Pengabdian Kepada Masyarakat
Publisher : Pusat Penelitian dan Pengabdian Kepada Masyarakat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33504/dulang.v4i01.324

Abstract

The Bangka Belitung Islands are an archipelagic area which is located at 104°50' to 109° East Longitude and 0°50' to 4°10' South Latitude, there are 6 districts and 1 municipality, and with a population of 1,473,165 people. Bangka Belitung is famous for its tin mines, almost 80% of its tin production comes from Bangka Belitung, apart from that, the marine sector also has a distribution role in regional PAD supplies. With the support of fishing boats, fishery products in 2022 will be 196,704 tons/year. To increase fishing capacity in the future, facilities are needed that can support more fishing capacity, apart from ships with larger capacity, they must also be accompanied by other facilities, namely in terms of energy, both for engines and for lighting. To develop renewable energy to support the maritime sector, a system is needed to supply energy, especially to fishing boats, to reduce fuel dependency. By using a clean and efficient energy-generating tool, namely by using a solar cell, with a capacity of 100 wp, a 12Volt/40 HA battery can produce 480 watts of power, so you can light 10 lights with a capacity of 15 watts for 5 hours, meaning you can save fuel by 20-30%.
Pengaruh Fraksi Volume Pada Komposit Serat Lapisan Batang Pisang Kepok Dengan Perlakuan Asap Cair Terhadap Kekuatan Tarik Kusuma, Sultan Chandra; Yuliyanto , Yuliyanto; Dharta, Yuli
Jurnal Inovasi Teknologi Terapan Vol. 1 No. 2 (2023): Jurnal Inovasi Teknologi Terapan
Publisher : Politeknik Manufaktur Negeri Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33504/jitt.v1i2.50

Abstract

Synthetic fiber composite materials such as glass fiber, aramid and carbon fiber have good mechanical properties, but cause environmental pollution because they cannot be recycled. Because of this, many researchers are making composites with natural fibers. The advantages of natural fibers include: lower price, easy processing, reduced CO2 emissions, and specific strength meets application requirements. Composites are materials composed of a mixture of more than two different main elements. Composites have the advantages of light weight, higher strength, and corrosion resistance. This study applies the full factorial design method, which will look at the effect of the composite ratio (volume fraction and between fiber layers) on tensile strength. The purpose of this research is to determine the effect of variations in volume fraction and fiber layers of kepok banana stems on tensile strength. So that it can be used as an alternative material for making SNI helmets. This study used variations in volume fractions of 10%, 15%, and 20% and variations in fiber layers of 3, 4, and 5 kepok banana stems. Liquid smoke soaking time was 60 minutes. The average value of the maximum tensile test in the 4th layer, 10% volume fraction of fiber with a value of 42.76 Mpa and the minimum average value in the 3rd layer using 10% volume fraction of fiber with a value of 30.06 Mpa.
Pemanfaatan Limbah Cangkang Kerang Lokan (Glonia Erosa) Sebagai Bahan Penjernih Air Amana, Wahyu; Dharta, Yuli; Tuparjono, Tuparjono; Wahyudie, Ilham Ary
Jurnal Inovasi Teknologi Terapan Vol. 2 No. 1 (2024): Jurnal Inovasi Teknologi Terapan
Publisher : Politeknik Manufaktur Negeri Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33504/jitt.v2i1.154

Abstract

Lokan mussels (Geloina erosa) live at the bottom of sandy and muddy waters. Lokan shell waste is found on many Indonesian beaches and is left unattended by the surrounding community, so a new breakthrough is made to add value to the use of the shell. this study aims to convert waste into materials that can increase pH in water, because there are calcium carbonate (CaCO3) compounds that are useful in the adsorption process. Adsorption is the process of absorbing substances or content such as iron metal (Fe). The pores on the surface of the shell can carry out the adsorption process using a physical method, namely heating at 250 oC and 350 oC to open the pores on the surface. The result of this test is that the shells of lokan shells made and then tested for Ph in water mixed with powder have an increase in value from 5.7 to 7.4 - 8.2. In elemental testing or (XRF) for the lokan shell itself there is the element CaO or Calcium oxide after heating.
Pengaruh Fraksi Volume Terhadap Sifat Tarik Komposit Diperkuat Serat Tebu Dengan Matrik Poliester Harita, Revival Praise; Dharta, Yuli; Napitupulu, Robert
Jurnal Inovasi Teknologi Terapan Vol. 3 No. 1 (2025): Jurnal Inovasi Teknologi Terapan
Publisher : Politeknik Manufaktur Negeri Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33504/jitt.v3i1.282

Abstract

Indonesia, which has a tropical climate, is one of the largest producers of cane sugar in the world. Therefore, waste from the sugar cane production process has the potential to be an alternative material for composite material fillers, as it is easily available and environmentally friendly. Along with industrial development, innovation in composite materials is also advancing, especially thanks to the abundance of abundant and renewable resources. This research aims to develop composites from sugarcane fibers with polyester resin as the binder matrix. The prepared fibers were then soaked in 5% NaOH solution with volume fraction variations of 10%, 15%, and 20%, and arranged randomly. The composite manufacturing process was carried out using the hand lay-up method. Tests carried out on the specimens were tensile tests with ASTM D638 standards, which were carried out at the Bangka Belitung State Manufacturing Polytechnic. The results showed that the highest tensile strength was recorded at a volume fraction of 20% sugarcane fiber after soaking for 4 hours with NaOH, which was 27.94 MPa. In contrast, the lowest tensile strength was obtained at a volume fraction of 10% sugarcane fiber with 2 hours of NaOH immersion, which reached 24.25 MPa. This finding is consistent with previous research which shows that fiber volume fraction and immersion time with NaOH play an important role in increasing the strength of fiber structures in composites.
Analisis Ukuran Partikel Serbuk Arang terhadap Pengurangan Kadar Abu pada Briket Tempurung Kelapa Napitupulu, Robert; Pratama, Randa Julio; Dharta, Yuli
Jurnal Teknologi Vol 25, No 1 (2025): April 2025
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/teknologi.v25i1.6256

Abstract

As an environmentally friendly alternative fuel, coconut shell briquettes have the potential to replace fossil fuels. However, the main challenge in its use is the high ash content that reduces combustion efficiency and produces residues that are difficult to clean. This study focuses on analyzing the effect of charcoal particle size on reducing ash content in coconut shell briquettes. The method used was a full factorial experimental design with two process variables: the ratio of charcoal powder and tapioca starch (90%:10%, 85%:15%, 80%:20%), and charcoal particle size (40, 60, and 80 Mesh). To improve accuracy, each treatment combination was repeated three times. The stages of making briquettes include material preparation, mixing, molding, and drying. Ash content testing was conducted in accordance with SNI 01-6235-2000 standard. The results showed that charcoal particle size has a significant effect on ash content, where larger particles produce lower ash content. The lowest ash content, 1.49%, was found in briquettes with 40 Mesh particle size. This study makes an important contribution to the development of more efficient and environmentally friendly coconut shell briquettes.
Analisis Pengaruh Konsentrasi Perekat Tepung Tapioka terhadap Pengurangan Kadar Abu pada Briket Tempurung Kelapa Napitupulu, Robert; Pratama, Randa Julio; Dharta, Yuli
Jurnal Teknologi Vol 25, No 1 (2025): April 2025
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/teknologi.v25i1.6258

Abstract

Binder is a crucial component in briquette production, serving to consolidate charcoal particles into a solid form. This study aims to analyze the effect of tapioca starch concentration as a binder on the reduction of ash content in coconut shell briquettes. The binder concentrations used were 10%, 15%, and 20% of the total material mixture, with ash content testing conducted according to SNI 01-6235-2000 standards. The briquette production process included raw material preparation, mixing, molding, and drying. The results showed that binder concentration significantly affected the briquette's ash content. Lower binder concentrations resulted in reduced ash content, with the optimal ash content of 1.52% achieved at a 10% binder concentration. Excess binder tended to increase ash content due to residual binder that did not fully combust. These findings highlight the importance of controlling binder concentration to improve the quality of coconut shell briquettes as an alternative fuel source.
Performance Improvement of Coal Dust Briquettes: Application of Taguchi Design and Pareto Analysis for Optimizing Key Processing Variables Dharta, Yuli; Wahyudie, ilham Ary; Sukanto, Sukanto; Husman, Husman; Yuliyanto, Yuliyanto; Oktriadi, Yudi
FLYWHEEL : Jurnal Teknik Mesin Untirta Vol 11, No 1 (2025): April
Publisher : Universitas Sultan Ageng Tirtayasa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62870/fwl.v11i1.34541

Abstract

The main challenge in the briquette-making process is selecting the appropriate and proportionate reinforcement or adhesive. The chosen adhesive must not only provide strong adhesion but also be compatible with other components. Briquettes are alternative fuels in solid form, made from carbon-containing materials with a high calorific value, allowing them to burn for an extended period. Coal is one of the alternative materials that can be used for briquettes. The choice of adhesive type and composition directly influences the compressive strength, thermal stability, and durability of briquettes in various environmental conditions. This study aims to investigate how process parameters affect the compressive strength of briquettes produced from coal powder reinforced with molasses, to improve the efficiency of the briquette production process. The methodology used in this study is the Taguchi method. The process parameters include four factors, each with three levels, tested with three replications: the percentage of reinforcement or adhesive at levels of 10%, 12.5%, and 15%; pressure at levels of 8 MPa, 10 MPa, and 12 MPa; temperature at levels of 70 °C, 90 °C, and 110 °C; and heating time at levels of 60 minutes, 90 minutes, and 120 minutes. To enhance the comprehensiveness of the study, several factors, including the moisture content of the briquettes, have also been examined. The results indicate that the temperature during the drying process is the most significant factor influencing the production of these briquettes.
PENERAPAN TEKNOLOGI TEPAT GUNA PENGOLAHAN LIMBAH KELAPA MUDA SEBAGAI MEDIA PUPUK ORGANIK KELAPA SAWIT DI KABUPATEN BANGKA Napitupulu, Robert; Dharta, Yuli; Subkhan, Subkhan; Arsieka Putri, Diviya; Parlindungan, Devaned; Pratama, Aldi; Hasdiansah, Hasdiansah; Lavita Angelina, Clara
Martabe : Jurnal Pengabdian Kepada Masyarakat Vol 6, No 2 (2023): martabe : jurnal pengabdian kepada masyarakat
Publisher : Universitas Muhammadiyah Tapanuli Selatan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31604/jpm.v6i2.434-441

Abstract

Penerapan teknologi tepat guna pengolahan limbah kelapa muda sebagai media pupuk organik kelapa sawit di Kabupaten Bangka, merupakan kegiatan pengabdian dosen dan mahasiswa dengan melibatkan mitra, yaitu masyarakat yang peduli akan lingkungan dan aktif dalam pengembangan dan budidaya kelapa sawit di Kabupaten Bangka. Permasalahan yang dihadapi mitra adalah sulitnya mendapatkan pupuk yang disebabkan karena mahalnya harga pupuk anorganik dipasaran dan berdampak pada pengurangan hasil panen buah sawit. Selain itu, limbah kelapa muda jumlahnya sangat besar, apalagi dikala bulan puasa. Ini menjadi masalah tersendiri karena berpotensi menyebabkan terjadinya pencemaran lingkungan dan menjadi sarang penyakit. Limbah kelamud ternyata bisa digunakan menjadi bahan baku pembuatan pupuk organik bagi tanaman kelapa sawit. Saat ini proses pengolahan limbah kelamut masih dilakukan dengan cara manual menggunakan parang. Untuk dapat memecahkan masalah Mitra tersebut, maka kegiatan pengabdian kepada masyarakat ini dilaksanakan berupa pemberian bantuan penerapan TTG dalam pengolahan limbah kelamud serta pemberian pelatihan berupa cara pengoperasian dan perawatan mesin pengolah limbah kelamud dalam bentuk ceramah, diskusi, praktek dan introduksi mesin pencacah limbah kelamud untuk dijadikan bahan baku pupuk organik. Pelaksanaan kegiatan pengabdian kepada masyarakat ini nantinya diharapkan mitra mampu membuat pupuk organik dengan memanfaatkan limbah kelamud dan juga dapat mengurangi limbah kelamud yang tidak bermanfaat yang dapat menimbulkan berbagai penyakit. Hasil dari kegiatan ini mampu membantu IKM mengatasi persoalan pengolahan limbah kelamud menjadi lebih cepat dan efektif dengan kapasitasnya 201,04 Kg/jam sehingga mempercepat Proses pembuatan pupuk organik bagi tanaman kelapa sawit.
Co-Authors ., Yudhi Amana, Wahyu Arsieka Putri, Diviya Harita, Revival Praise Hasdiansah, Hasdiansah Hera, Hera Husman, Husman Ilham Ary Wahyudie Kusuma, Sultan Chandra Lavita Angelina, Clara Ocsirendi Oktriadi, Yudi Parlindungan, Devaned Pratama, Aldi Pratama, Randa Julio Robert Napitupulu Saputra, Gillang Subkhan Subkhan Sukanto Sukanto Tuparjono . Yuliyanto Yuliyanto Yuliyanto