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All Journal Journal of Engineering and Management in Industrial System LONTAR Jurnal Teknik Mesin Undana (LJTMU ) Turbo : Jurnal Program Studi Teknik Mesin SELAPARANG: Jurnal Pengabdian Masyarakat Berkemajuan Jurnal Fisika : Fisika Sains dan Aplikasinya Jurnal Lembaga Pengabdian Kepada Masyarakat Undana
Tobe, Adi Yermia
Program Studi Teknik Mesin, Fakultas Sains Dan Teknik Universitas Nusa Cendana
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Temperatur, Warna Nyala Api, dan Tinggi Api pada Pembakaran Premixed Bioetanol dari Lontar (Borassus Flabellifer) Tobe, Adi Y.; Riwu, Defmit B.N.; Pah, Jack C.A.; Adoe, Dominggus G. H.; Baitanu, Rivanto
LONTAR Jurnal Teknik Mesin Undana (LJTMU ) Vol 9 No 01 (2022): April 2022
Publisher : Universitas Nusa Cendana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35508/ljtmu.v9i01.8062

Abstract

Bioethanol is a renewable energy that can be used as an alternative fuel. Bioethanol is alcohol produced from plants by using microorganisms through a fermentation process. This study aims to determine and analyze the combustion characteristics of premixed bioethanol from Lontar (Borassus Flabellifer), including: temperature, flame height and flame color. The research method uses a variety of air to be inserted, starting from 0 ml/min air flow to blow off in multiples of 50 ml/min. From the results of research that has been done, it shows that in premixed combustion the more air volume is given, the more blue the color of the flame will be, the temperature of the fire will increase and the height of the fire will be lower
Karakteristik Pembakaran Premixed dari Campuran FAME (Fatty Acid Methyl Ester) dan Solar Murni Adoe, Dominggus G. H.; Talo, Piter; Pah, Jack C.A.; Tobe, Adi Y.; Riwu, Defmit B.N.
LONTAR Jurnal Teknik Mesin Undana (LJTMU ) Vol 9 No 02 (2022): Oktober 2022
Publisher : Universitas Nusa Cendana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35508/ljtmu.v9i02.9375

Abstract

Penelitian ini bertujuan untuk mengetahui pengaruh penambahan solar murni ke dalam FAME (Fatty Acid Methyl Ester) pada proses pembakaran premixed, terhadap perubahan temperatur api dan warna nyala api. Percobaan dilakukan dengan membakar campuran minyak FAME dan minyak solar murni, dengan persentasi FAME dan solar murni sebesar 70%:30%, 80%:20%, 90%:10%, dan 95%:5%. Hasil pengujian pembakaram premixed dari campuran ini kemudian diamati warna nyala apinya dengan bantuan camera digital dan temperatur nyala apinya pada 2 titik, yang mana diukur secara langsung dengan menggunakan termokopel. Equivalence ratio pada pembakaran ini dihitung untuk semua komposisi campuran FAME dan minyak solar. Dari data hasil penelitian dan analisis, dapati bahwa semakin kecil equivalence ratio maka temperatur api akan meningkat. Hal ini terjadi karena udara yang ditambahkan dalam proses pembakaran tercampur sempurna dengan bahan bakar, sehingga kalor yang dihasilkan semakin besar dan juga temperatur semakin meningkat. Selain itu juga dapat terlihat bahwa temperatur pada titik 1 lebih tinggi dari pada titik 2. Hal ini menunjukkan bahwa titik 1 merupakan zona pembakaran akhir, dimana bahan bakar telah terbakar habis. Warna nyala api juga akan menjadi semakin biru ketika equivalence ratio semakin kecil.
PERANCANGAN MESIN PENEPUNG DAUN LAMTORO DENGAN MENGGUNAKAN METODE VDI 2222 Gama, Ronaldo Luis; Bale, Jefri; Tobe, Adi Y.
LONTAR Jurnal Teknik Mesin Undana (LJTMU ) Vol 10 No 01 (2023): April 2023
Publisher : Universitas Nusa Cendana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35508/ljtmu.v10i01.11510

Abstract

The method used in this research is the VDI 2222 method. The process of testing the tool is carried out by turning on the motor, and inputting the lamtoro leaves which will be floured into the tube, the results of the design of the lamtoro leaf powder machine with the VDI 2222 method and the results of the lamtoro leaf flour powder machine test, concluded as follows: Design of a lamtoro leaf crushing machine with engine dimensions, namely: Height 50 cm, Width 30 cm and Length 37 cm, and motor power ¼ hp and uses a belt and pulley transmission, by testing the weight of lamtoro leaves, namely 3000 gr (3 kg) with the required time of 420 minutes, then the flouring process is carried out so that it will produce lamtoro flour with a fineness level of 80 mesh. The design stages using the VDI 2222 method are carried out sequentially which can be adjusted to the needs.
Rancang Bangun Alat Pencetak Briket Dengan Sistem Hidrolik Nafie, Andri; Jasron, Jahirwan Ut; Tobe, Adi Y.
LONTAR Jurnal Teknik Mesin Undana (LJTMU ) Vol 10 No 02 (2023): Oktober 2023
Publisher : Universitas Nusa Cendana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35508/ljtmu.v10i02.14107

Abstract

Briquettes are an alternative energy source to replace dependence on fossil fuels such as kerosene. However, in the process of making briquettes, there are still obstacles. The printing process still uses traditional methods, and the existing briquette printing equipment is also not equipped with a hydraulic system and pressure gauge, so it requires more printing time. It cannot know how much pressure is applied during printing. A briquette printing machine equipped with a hydraulic system and pressure gauge is needed to simplify the briquette printing process and save energy. The purpose of designing this briquette printing machine is to produce a press machine design with a hydraulic system equipped with a pressure gauge. The design method used in this research is an experiment using the Shigley-Mitchell method. The results of the analysis of the maximum stress of the material for 150 kg pressure on the frame 2,565x107 N/m2, the press cylinder 1,932x106 N/m2, the upper press piston 8,830x102 N/m2, the lower plunger piston 2,392x107 N/m2, and the maximum stress for the loading pressure on the connecting lever 1,433x107 N/m2, the pressing lever 2,873x108 N/m2, the material yield strength value 6,204 x 108 N/m2.
Pembuatan dan Pengujian Alat Penetas Telur Bertenaga Surya Tegangan 12V DC Nuban, Jondri K. A.; Koehuan, Verdy A.; Selan, Rima N.; Tobe, Adi Y.
LONTAR Jurnal Teknik Mesin Undana (LJTMU ) Vol 11 No 01 (2024): April 2024
Publisher : Universitas Nusa Cendana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35508/ljtmu.v11i01.17756

Abstract

produce quality poultry chicks. However, the natural egg-hatching process is often less efficient and susceptible to fluctuations in environmental temperature. Therefore, to increase the efficiency and results of egg hatching, this research aims to design and test an automatic chicken egg incubator that uses solar energy. This tool is designed to consider factors such as temperature, humidity, and air circulation required for optimal egg hatching. Testing was carried out for 21 days, by monitoring environmental temperature, humidity, and temperature distribution in the egg hatching room. The test results showed that the tool was able to reach the desired temperature for hatching eggs and succeeded in hatching several eggs well, while some other eggs experienced defects or died during the hatching process. In addition, power and energy consumption analysis shows that the device has quite good efficiency in using energy, with low energy consumption to maintain the room temperature within the desired range. The solar-powered automatic egg incubator has the potential to increase the efficiency and yield of egg hatching in the livestock industry and can be an environmentally friendly alternative by utilizing solar energy which is available freely and sustainably
Optimasi Kompor Dengan Variasi Bahan Bakar Sonbaifeto, Dodi Alfredo; Riwu, Defmit B.N.; Tobe, Adi Y.
LONTAR Jurnal Teknik Mesin Undana (LJTMU ) Vol 11 No 02 (2024): Oktober 2024
Publisher : Universitas Nusa Cendana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35508/ljtmu.v11i02.17862

Abstract

Dalam peningkatan kebutuhan energi dan kesadaran akan pelestarian lingkungan, penggunaan bahan bakar yang ramah lingkungan dan efisien menjadi penting. Penelitian ini bertujuan untuk mengembangkan kompor yang dapat menggunakan berbagai jenis bahan bakar sebagai solusi alternatif. Fokusnya adalah pada pengujian konsumsi bahan bakar dan temperatur api dari tiga jenis bahan bakar: minyak tanah, Biodiesel B30, dan minyak jelantah. Hasil pengujian menunjukkan bahwa konsumsi bahan bakar pada ketinggian penempatan tabung bahan bakar 200 cm, konsumsi bahan bakar pada bahan bakar minyak tanah sebesar 0,035 ml/s, Biodiesel B30 sebesar 0,04ml/s, dan minyak jelantah sebesar 0,03ml/s, sedangkan pada ketinggian penempatan tabung bahan bakar 160 cm, konsumsi bahan bakar pada bahan bakar minyak tanah sebesar 0,031ml/s, Biodiesel B30 sebesar 0,039ml/s, minyak jelantah sebesar 0,027ml/s, dan Temperatur api di ketinggian menaruh tabung bahan bakar di 200 cm, pada bahan bakar minyak tanah sebesar 1049°C, Biodiesel B30 sebesar 971°C, dan minyak jelantah sebesar 805°C, sedangkan, , sedangkan pada ketinggian penempatan tabung bahan bakar di 160 cm, temperatur api pada bahan bakar minyak tanah sebesar 996°C, pada Biodiesel B30 sebesar 788°C, dan pada minyak jelantah sebesar 518°C.
Akibat peningkatan tekanan gesek terhadap kekuatan tarik sambungan pada proses pengelasan gesek continuous drive AA6061- baja karbon sedang Pah, Jack Carol Adolf; Riwu, Defmit B. N.; Maliwemu, Erich U.K.; Tobe, Adi Yermia; Bunganaen, Wenseslaus; Mangesa, Daud P.
TURBO [Tulisan Riset Berbasis Online] Vol 12, No 1 (2023): Jurnal TURBO
Publisher : Universitas Muhammadiyah Metro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24127/trb.v12i1.2296

Abstract

The objective of this research was to get the effect of friction pressure on the tensile strength of the joining of aluminum alloy AA6061 and carbon steel, with continuous drive friction welding process. Variations of friction pressure of this research were 24 MPa, 32 MPa, and 40 MPa. In this study, a friction time 9 seconds was used. Other friction welding variables were, forging pressure 79 MPa, forging time 60 seconds, and friction rotation speed 1600 rpm. The independent variable was the ultimate tensile strength of the welded joint. The results showed that the increase in the tensile strength of the joint was not linear with the increase of frictional pressure. The rate of the increase in the tensile strength of the connection, will decrease after the frictional pressure passes through 32 MPa. When the rate of increase in the tensile strength of the joint begins to decrease, the joint will become more brittle. The maximum tensile strength of the joint in this study was 167.421 MPa at a frictional pressure of 40 MPa.Rasakan keseruan bermain di om88 dengan peluang menang yang lebih besar. Nikmati pengalaman bermain yang seru, aman, dan penuh tantangan. Segera coba dan raih kemenangan besarmu!
Penerapan Solar Home System Bagi Keluarga Petani di Dusun Niskolen M. Dwinanto, Matheus M.; Limbong, Ishak S.; Adoe, Dominggus G. H.; Tobe, Adi Y.; Pah, Jack C. A
Jurnal Pengabdian Kepada Masyarakat Undana Vol 15 No 1 (2021): JUNI 2021
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Nusa Cendana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35508/jpkmlppm.v15i1.4878

Abstract

Abstract - This activity tries to reveal the impact of installing a solar home system with energy-saving lamps on the social and economic benefits for farming families in Niskolen hamlet. The social and economic benefits are intended for continuity in efforts to expand access to electricity services in areas not yet covered by electricity, and to encourage economic development and growth as well as improve the welfare of farmers. These social and economic benefits have long-term effects, such as increasing reading and learning opportunities, improving people's health standards, and with electricity at night farmers can carry out social and economic activities, as well as facilitate and speed up information from electronic media. The existence of electric lighting will pave the way for the development of the various talents that exist for innovation and entrepreneurship. Abstrak – Kegiatan ini mencoba untuk mengungkapkan dampak pemasangan solar home system dengan lampu hemat energi terhadap manfaat social dan ekonomi bagi keluarga petani di dusun Niskolen. Manfaat sosial dan ekonomi dimaksudkan untuk kelangsungan dalam upaya perluasan akses pelayanan listrik pada wilayah yang belum terjangkau listrik, dan mendorong pembangunan dan pertumbuhan ekonomi serta meningkatkan kesejateraan petani. Manfaat sosial dan ekonomi ini berpengaruh secara jangka panjang, antara lain seperti, peningkatan kesempatan membaca dan belajar, peningkatan taraf kesehatan rakyat, dan dengan adanya listrik pada waktu malam hari petani dapat melakukan kegiatan sosial dan ekonomi, serta memudahkan dan mempercepat informasi dari media elektronik. Dengan adanya penerangan listrik akan membuka jalan kepada pengembangan berbagai bakat yang ada untuk inovasi dan kewirausahaan.
Edukasi dan pelatihan pembuatan komposter tumbler bagi UPP Perempuan GMIT Paulus De Rozari, Philiphi; Kleden, Maria A.; Selan, Rima Nindia; Tobe, Adi Y.; Adoe, Dominggus G. H.
SELAPARANG: Jurnal Pengabdian Masyarakat Berkemajuan Vol 10, No 1 (2026): February
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/jpmb.v10i1.37658

Abstract

AbstrakTujuan kegiatan Pengabdian masyarakat ini adalah untuk memberikan edukasi dan pelatihan pengolahan sampah plastik menjadi furnitur bernilai ekonomis bagi civitas akademika dan khususnya bagi mahasiswa dilingkungan Universitas Nusa Cendana (Undana). Program ini bertujuan untuk memberikan pengetahuan dan keterampilan kepada mahasiswa Prodi Teknik Mesin maupun mahasiswa KKN yang berkegiatan di Prodi Teknik Mesin, mengenai cara memanfaatkan sampah plastik menjadi produk yang memiliki nilai jual, seperti furnitur. Setelah mengikuti kegiatan ini diharapkan dapat meningkatkan pemahaman, kesadaran, dan keterampilan mahasiswa dalam mengolah sampah plastik menjadi produk bernilai ekonomis, khususnya furnitur. Dengan demikian, mahasiswa dapat menjadi motor penggerak dalam upaya penanganan sampah plastik yang saat ini sudah menjadi masalah Nasional bahkan Global. Dengan adanya kegiatan ini, diharapkan dapat meningkatkan kesadaran seluruh masyarakat kampus untuk "zero waste recycle" yang pada akhirnya dapat mengurangi volume sampah plastik yang dibuang ke Tempat Pembuangan Akhir (TPA), meningkatkan kesadaran masyarakat kampus maupun seputar kampus tentang pentingnya pengelolaan sampah, serta memberikan keterampilan baru yang bernilai ekonomis. Materi Pelatihan dalam kegiatan pengabdian ini mencakup pemilahan sampah plastik, teknik pengolahan sampah plastik menjadi bahan baku furnitur, desain serta pembuatan furnitur/produk dari limbah plastik. Metode yang digunakan dalam kegiatan ini menggunakan metode partisipatif, di mana peserta terlibat aktif dalam proses pembelajaran dan praktik langsung. Target luaran kegiatan ini adalah peningkatan kesadaran civitas akademika dalam mengatasi masalah sampah plastik serta produk furnitur berupa meja, kursi dan bangku dari sampah plastik. Selain itu, model penanganan sampah plastik ini diharapkan dapat diadopsi oleh Bank Sampah Undana dalam mengelola sampah plastik dilingkunagn Undana sehingga bisa menjadi inspirasi bagi pihak lain, seperti Dinas Lingkungan Hidup Kota Kupang, dalam pengelolaan sampah plastik menjadi produk yang bernilai ekonomis Kata kunci: pengolahan; sampah plastik; zero waste recycle. AbstractThe purpose of this community service activity is to provide education and training on processing plastic waste into economically valuable furniture for the academic community, and specifically for students at Nusa Cendana University (Undana). This program aims to provide knowledge and skills to Mechanical Engineering students and KKN students participating in the Mechanical Engineering Study Program on how to utilize plastic waste into products with market value, such as furniture. After participating in this activity, it is hoped that students will have increased their understanding, awareness, and skills in processing plastic waste into economically valuable products, particularly furniture. Thus, students can become a driving force in efforts to address plastic waste, which has now become a national and even global problem. This activity is expected to raise awareness throughout the campus community about "zero waste recycling," which will ultimately reduce the volume of plastic waste disposed of in landfills (TPA), raise awareness among the campus community and surrounding areas about the importance of waste management, and provide new skills with economic value. Training materials in this community service activity include plastic waste sorting, techniques for processing plastic waste into raw materials for furniture, and the design and manufacture of furniture/products from plastic waste. The method used in this activity is a participatory method, where participants are actively involved in the learning process and direct practice. The target output of this activity is to increase awareness of the academic community in addressing the problem of plastic waste and furniture products in the form of tables, chairs and benches made from plastic waste. In addition, this plastic waste management model is expected to be adopted by the Undana Waste Bank in managing plastic waste in the Undana environment so that it can inspire other parties, such as the Kupang City Environmental Agency, in managing plastic waste into products with economic value.template Keywords:  processing; plastic waste; zero waste recycling.
THE INTEGRATION OF OVERALL EQUIPMENT EFFECTIVENESS (OEE) METHOD AND LEAN MANUFACTURING CONCEPT TO IMPROVE PRODUCTION PERFORMANCE (CASE STUDY: FERTILIZER PRODUCER) Tobe, Adi Yermia; Widhiyanuriyawan, Denny; Yuliati, Lilis
JEMIS (Journal of Engineering & Management in Industrial System) Vol. 5 No. 2 (2017)
Publisher : Industrial Engineering Department, Faculty of Engineering, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jemis.2017.005.02.7

Abstract

High machine downtime and large number of rejected products is still become a big problem for company as a research object in this study. Overall Equipment Effectiveness (OEE) is one of the methods used to measure the effectiveness of a machine with three measurement factors, namely; availability rate, performance rate, and quality rate. The integration of OEE measurement and lean manufacturing analysis method is employed to improve production system in company. The measurement result shows that the value of availability rate is 88.82%, performance rate 93.70%, and quality rate 98.20%; then the OEE values obtained 81.73%. The root cause is investigated by using FMEA (Failure Mode and Effect Analysis) method particularly from the RPN (Risk Priority Number).
Co-Authors Baitanu, Rivanto Baria, Metrisno Defmit B.N. Riwu Denny Widhiyanuriyawan Dominggus Godlief Heryson Adoe Erich Maliwemu, Erich FERDINAN PUAY Gama, Ronaldo Luis Ishak Limbong Jack C. A. Pah Jack C. Pah Jack C.A. Pah Jack C.A. Pah Jack Pah Jahirwan Ut Jasron Jefri Semuel Bale Kristomus Boimau Kyven G. Hoke Liba Lilis Yuliati M. Dwinanto, Matheus M. Mangesa, Daud P. Maria Agustina Kleden Matheus M. Dwinanto Melvani E. D. Tana Muhamad Jafri Nafie, Andri Nuban, Jondri K. A. Pah, Jack C. A Pah, Jack C.A. Pah, Jack Carol Adolf Philiphi de Rozari Rima Nindia Selan Robin Diyener Takain Sengge, James Roland Sonbaifeto, Dodi Alfredo Suprianto Siagian Talo, Piter Verdy A Koehuan Verdy A. Koehuan Wagimin Wagimin Wenseslaus Bunganaen Yohanes Babtista Rojerio Tenis