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Design of Green Energy Stove: Characteristics of Combustion and Performance Kurniawan, Stephanus Danny; Sasongko, Beni Tri
SENATIK STT Adisutjipto Vol 4 (2018): Transformasi Teknologi untuk Mendukung Ketahanan Nasional [ ISBN 978-602-52742-0-6 ]
Publisher : Sekolah Tinggi Teknologi Adisutjipto

So far, the rural population of fuel users make firewood stoves from ground or cement. Often waiting is made less efficient and produces a lot of smoke pollution, especially if the level of dryness of the wood is low. From this background, then came the idea for the manufacture of stoves that save fuel wood and minimal smoke pollution. Furthermore, to be able to achieve this goal, in this study a biomass furnace will be developed that has a combustion air regulation system and a firewood drying system before use. Research implementation is divided into furnace design (design and fabrication) and testing (combustion characteristics and performance). Research begins with the design of the dimensions and shape of the furnace to be made. Furthermore, fabrication of stoves from Stainless Steel plate materials will be carried out at the Mechanical Technology Laboratory, IST AKPRIND. The stove produced by the construction will be tested with fuel wood in terms of combustion characteristics and performance. The results show that biomass stoves can be used and produced for household and small-scale industries.

Tube Bending Machine for Home Industry Scale Lestari, Nidia; Kurniawan, Stephanus Danny; Yudhanto, Bagas
SENATIK STT Adisutjipto Vol 4 (2018): Transformasi Teknologi untuk Mendukung Ketahanan Nasional [ ISBN 978-602-52742-0-6 ]
Publisher : Sekolah Tinggi Teknologi Adisutjipto

Tube bending is a general term for the process of forming metals used to form pipes or tubes permanently. By utilizing plastic deformation, straight objects are bent to form arches. Metal pipes in the form of arches can be used as a connection to machine construction, circular ladders, bicycle frames, motor frames, furniture, musical instruments. To improve time and energy efficiency in the bending process, a roll bending machine is designed. This machine is also expected to meet the needs of buckling pipes so that it can be used as a business field by the community. This machine can bend pipes 3/4 inch to 1 inch with a thickness of 1 mm.

PENGARUH MASSA KATALIS ZEOLIT ALAM PADA PROSES PIROLISIS LIMBAH PLASTIK LOW DENSITY POLYETHYLENE (LDPE) Stephanus Danny Kurniawan; Harwin Saptoadi
JURNAL TEKNOLOGI TECHNOSCIENTIA Technoscientia Vol 9 No 1 Agustus 2016
Publisher : Lembaga Penelitian & Pengabdian Kepada Masyarakat (LPPM), IST AKPRIND Yogyakarta

Plastic wastes have considerable potential to be converted into alternative fuels through pyrolysis process and reduce negative impacts on the environment pollution. Plastic pyrolysis process carried out to obtain hydrocarbon compounds that can be used as fuel and increase the economic value of the plastic wastes. The raw material used is Low Density Polyethylene (LDPE). This study was conducted to determine the effect of variations in the mass of catalyst on the characteristics and applications of waste plastics pyrolysis oil (WPO). The reactor used was a batch-type fixed with a temperature of 450ºC, nitrogen flow rate of 0.8 l/min, which feedstock used is 2000gr and natural zeolite as a catalyst. The use of mass variation of Catalyst Feedstock Ratio (CFR) are 0.05, 0.10 and 0.15. The results showed that the increasing use of the mass of catalyst have an effect in decreasing of liquid products. Most liquid products obtained in the use of 100g catalyst, with a percentage of 56.75%wt liquid products, 38.60%wt gas products and 4.65%wt solid products. The results of the characteristics and properties testing of plastics pyrolysis oils include specific gravity, kinematic viscosity, flash point, pour point, cloud point, water content, ash content, carbon number distribution and PONA analysis showed that the pyrolysis oil has similarities with kerosene and diesel oil as well can be developed as analternative fuels.

Pemberdayaan Potensi Pemuda Pemudi Kalijeruk Melalui Budidaya Ikan Air Tawar Andrean Emaputra; Stephanus Danny Kurniawan; Beni Tri Sasongko
E-Dimas: Jurnal Pengabdian kepada Masyarakat Vol 12, No 1 (2021): E-DIMAS
Publisher : Universitas PGRI Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26877/e-dimas.v12i1.4550

Sebuah kelompok pemuda-pemudi yang ada di Kalijeruk, Widodomartani, Ngemplak, Sleman, Daerah Istimewa Yogyakarta memiliki potensi kewirausahaan melalui budidaya ikan air tawar. Ikan tersebut adalah lele. Namun, potensi ini perlu diasah lebih lanjut agar dapat berkembang secara optimal. Program Kemitraan Masyarakat Stimulus (PKMS) ini bertujuan untuk meningkatkan keterampilan para pemuda di bidang budidaya ikan air tawar, dan dapat meningkatkan kas pemuda. Langkah-langkah yang dilakukan untuk mencapi tujuan tersebut adalah survai lokasi dan kondisi kolam, pembelian material untuk perbaikan kolam, pelaksanaan kerja bakti perbaikan kolam, pembelian bibit ikan lele, penyebaran benih ikan, pembuatan jadwal pemberian pakan ikan, pelatihan penyembuhan penyakit ikan, pemanenan ikan, serta penjualan ikan hasil panen. Program ini menghasilkan peningkatan solidaritas antara kaum muda dan keterampilan budidaya ikan yang baik. Selain itu, para pemuda dapat membuat kolam dan media air yang tepat untuk membudidayakan ikan dan dapat memilih bibit ikan dan pelet ikan yang lebih baik. Kegiatan ini meningkatkan semangat kewirausahaan kaum muda dan akhirnya meningkatkan kas kelompok pemuda untuk program sosial lain.

PENGARUH MASSA KATALIS ZEOLIT ALAM PADA PROSES PIROLISIS LIMBAH PLASTIK LOW DENSITY POLYETHYLENE (LDPE) Stephanus Danny Kurniawan; Harwin Saptoadi
JURNAL TEKNOLOGI TECHNOSCIENTIA Technoscientia Vol 9 No 1 Agustus 2016
Publisher : Lembaga Penelitian & Pengabdian Kepada Masyarakat (LPPM), IST AKPRIND Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34151/technoscientia.v9i1.153

Plastic wastes have considerable potential to be converted into alternative fuels through pyrolysis process and reduce negative impacts on the environment pollution. Plastic pyrolysis process carried out to obtain hydrocarbon compounds that can be used as fuel and increase the economic value of the plastic wastes. The raw material used is Low Density Polyethylene (LDPE). This study was conducted to determine the effect of variations in the mass of catalyst on the characteristics and applications of waste plastics pyrolysis oil (WPO). The reactor used was a batch-type fixed with a temperature of 450ºC, nitrogen flow rate of 0.8 l/min, which feedstock used is 2000gr and natural zeolite as a catalyst. The use of mass variation of Catalyst Feedstock Ratio (CFR) are 0.05, 0.10 and 0.15. The results showed that the increasing use of the mass of catalyst have an effect in decreasing of liquid products. Most liquid products obtained in the use of 100g catalyst, with a percentage of 56.75%wt liquid products, 38.60%wt gas products and 4.65%wt solid products. The results of the characteristics and properties testing of plastics pyrolysis oils include specific gravity, kinematic viscosity, flash point, pour point, cloud point, water content, ash content, carbon number distribution and PONA analysis showed that the pyrolysis oil has similarities with kerosene and diesel oil as well can be developed as analternative fuels.

Analisis keausan slewing gear 242-UB1 area unit ship unloader PT Solusi Bangun Indonesia Tbk Fikry Alvianto Kurniawan, Fikry; Kurniawan, Stephanus Danny; Handoko; Prihadianto, Braam Delfian
Jurnal Teknik Mesin Indonesia Vol. 19 No. 1 (2024): Jurnal Teknik Mesin Indonesia
Publisher : Badan Kerja Sama Teknik Mesin Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36289/jtmi.v19i1.440

Ship Unloader is a unit of equipment to move materials from marine units to other units related to the production process by performing travel movements by slewing gear components. The problem of damage in the slewing gear began after inspecting and replacing components. The gear tooth on the slewing gear experiences abnormal wear. This study aims to analyze the wear of the slewing gear component 242-UB1 in the Ship Unloader unit area at PT Solusi Bangun Indonesia Tbk. The research methods are field surveys, data collection, and fishbone diagrams. Research materials and tools include dial indicator, filler gauge, lead wire, slewing gear components, and vernier calliper. Data was obtained from monitoring the unit and equipment with RCA analysis. The analysis showed that backlash was a significant contributing factor to wear with the worst value of 2.0 mm. In addition, the percentage of wear on the top gear reached 25%, which means it has reached the red zone limit. How to reduce potential wear due to backlash by regular monitoring of the backlash gap online through sensors. In conclusion, the study revealed that component wear is closely related to the backlash phenomenon. In addressing this issue, regular monitoring, timely repairs, and selection of appropriate materials and lubricants are considered as measures that can reduce wear potential and increase component life.

Design of Green Energy Stove: Characteristics of Combustion and Performance Kurniawan, Stephanus Danny; Sasongko, Beni Tri
SENATIK STT Adisutjipto Vol 4 (2018): Transformasi Teknologi untuk Mendukung Ketahanan Nasional [ ISBN 978-602-52742-0-6 ]
Publisher : Institut Teknologi Dirgantara Adisutjipto

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.28989/senatik.v4i0.218

So far, the rural population of fuel users make firewood stoves from ground or cement. Often waiting is made less efficient and produces a lot of smoke pollution, especially if the level of dryness of the wood is low. From this background, then came the idea for the manufacture of stoves that save fuel wood and minimal smoke pollution. Furthermore, to be able to achieve this goal, in this study a biomass furnace will be developed that has a combustion air regulation system and a firewood drying system before use. Research implementation is divided into furnace design (design and fabrication) and testing (combustion characteristics and performance). Research begins with the design of the dimensions and shape of the furnace to be made. Furthermore, fabrication of stoves from Stainless Steel plate materials will be carried out at the Mechanical Technology Laboratory, IST AKPRIND. The stove produced by the construction will be tested with fuel wood in terms of combustion characteristics and performance. The results show that biomass stoves can be used and produced for household and small-scale industries.

Tube Bending Machine for Home Industry Scale Lestari, Nidia; Kurniawan, Stephanus Danny; Yudhanto, Bagas
SENATIK STT Adisutjipto Vol 4 (2018): Transformasi Teknologi untuk Mendukung Ketahanan Nasional [ ISBN 978-602-52742-0-6 ]
Publisher : Institut Teknologi Dirgantara Adisutjipto

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.28989/senatik.v4i0.271

Tube bending is a general term for the process of forming metals used to form pipes or tubes permanently. By utilizing plastic deformation, straight objects are bent to form arches. Metal pipes in the form of arches can be used as a connection to machine construction, circular ladders, bicycle frames, motor frames, furniture, musical instruments. To improve time and energy efficiency in the bending process, a roll bending machine is designed. This machine is also expected to meet the needs of buckling pipes so that it can be used as a business field by the community. This machine can bend pipes 3/4 inch to 1 inch with a thickness of 1 mm.

Energy balance of thermal and catalytic degradation processes of plastic waste for producing alternative fuel Sasongko, Beni Tri; Wisnu Wardhana, Prabuditya Bhisma; Kurniawan, Stephanus Danny; Susilo, Gunawan Budi
Journal of Engineering and Applied Technology Vol. 4 No. 2 (2023): (August)
Publisher : Faculty of Engineering, Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/jeatech.v4i2.61334

A simple thermal and catalytic degradation of polyethylene plastic waste has been carried out to produce alternative liquid fuel. Plastic of 1500 grams was pyrolyzed at a specific temperature of 450 °C. The gases were condensed in a water-cooled condenser and collected in a liquid container. Energy balance calculation was done where catalytic cracking with Y zeolite as catalyst seemed to be the best because the generated thermal energy from waste plastic oil was already higher than the required electric energy supplied for the cracking. However, several improvements must always be made in order to save more energy and create the best result for commercialization.

Integrasi Sistem Hidrolik Vessel Double Cylinder dan Lengan Penyapu pada Electric Road Sweeper Kuncoro, Robertus Tirta Kuncoroadi; Sugiyanto, Sugiyanto; Kurniawan, Stephanus Danny; Ikhsan, Ridha
Jurnal Teknologi dan Rekayasa Alat Berat Vol 1 No 1 (2024): JTRAB Volume 1, No 1, 2024
Publisher : Department of Mechanical Engineering, Vocational College, Gadjah Mada University.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jtrab.v1i1.8604

The use of electric road sweeper waste sweeping vehicles can increase effectiveness in waste management. This electric road sweeper research aims to integrate the hydraulic system of the sweeper arm and the double cylinder vessel. The process of designing a hydraulic system diagram uses FluidSIM 4.2 software and carries out mathematical calculations based on collecting data directly in the field. The test results show that when the vessel is unloaded, the movement of the sweep arm hydraulic cylinder when extending is 4.20 m/s and the retract movement is 3.1 m/s, and the movement of the vessel hydraulic cylinder when extending is 11.77 m/s and the movement retract worth 9.4 m/s. When the vessel was given a load of 100 kg, the test results obtained were that the movement of the hydraulic cylinder of the sweep arm during extend was 4.20 m/s and the retract movement was 3.1 m/s, as well as the movement of the vessel's hydraulic cylinder in both extend movements was 12.30 m/s. s and a retract movement of 8.60 m/s. It can be seen based on the results of the tests carried out that the load on the vessel influences the movement speed of the vessel's hydraulic cylinder, this is caused by the influence of gravity.

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