Journal of Applied Mechanical Engineering and Renewable Energy最新文献

{"title":"Pengaruh Penambahan Admixture Terhadap Nilai Slump dan Kuat Tekan Beton Bleeding","authors":"Darsini, Eko Pramuda Triwardana, Rahmatul Ahya","doi":"10.52158/jamere.v3i2.610","DOIUrl":"https://doi.org/10.52158/jamere.v3i2.610","url":null,"abstract":"In construction projects that occur during the construction or post-construction process, we can often encounter various problems, one of which is damage to fresh concrete such as bleeding in fresh concrete. The condition of the volume of deformed concrete in 1 year at the study site was 307 m3 due to extreme weather conditions (rain) in October - March, the slump value could change due to the fact that the funnel on the mixer truck was not closed. This research was carried out by adding bleeding concrete with admixture. This study aims to determine whether bleeding concrete can return to normal concrete after admixture is added. The method used is an experimental method using 15x15x15 cm cube specimens tested at age, 3 days, 7 days, 14 days, and 28 days. The quality of the concrete used in this study was C40 and C50 with an admixture composition of 0.05%, 0.1% and 0.2%. Based on this study, the slump values ​​for the 0.05% admixture composition for C40 and C50 were 24 and 21 cm, for the 0.1% admixture composition were 18 cm and for the 0.2% admixture composition were 17 and 18 cm. Maximum concrete compressive strength at 28 days of age for 0.1% admixture composition with C40 quality is 45.79 MPa and for C50 quality is 59.14 MPa. The time required for one repair of bleeding concrete at the casting location using admixture is 10 minutes, so that it can be time efficient by 205 minutes or equivalent to a time efficiency of 95.34%. With this admixture can reduce costs by Rp. 54,750,073 or equivalent to 83.45% of the total volume of bleeding of 307 m3.","PeriodicalId":394289,"journal":{"name":"Journal of Applied Mechanical Engineering and Renewable Energy","volume":"68 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139350621","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Perancangan Mesin Pembuat Pellet Untuk Campuran Cangkang Telur Sebagai Konsentrat Kapasitas 10 Kg/Jam Dengan Metode Pahl dan Beitz","authors":"Yudhi Chandra Dwiaji","doi":"10.52158/jamere.v3i2.570","DOIUrl":"https://doi.org/10.52158/jamere.v3i2.570","url":null,"abstract":"Cangkang telur merupakan salah satu limbah yang sering dijumpai di masyarakat dan industri pengolahan telur. Dengan bertambahnya jumlah penduduk dan konsumsi masyarakat. Cangkang telur umumnya dibuang begitu saja. Kandungan cangkang telur berupa CaCO3 yang berbahaya bagi lingkungan akibat aktivitas mikroba di lingkungan dapat menyebabkan pencemaran lingkungan. Pemanfaatan cangkang telur sebagai bahan pakan ternak dan pupuk organik dapat diberikan karena cangkang telur mengandung beberapa zat mineral seperti mineral makro. Mesin yang ada di pasaran hanya menghasilkan satu bentuk dalam satu kali proses yaitu berupa pelet atau tepung. Pada mesin pembuat pelet yang ada di pasaran, limbah cangkang telur sebelum diolah, dihaluskan secara manual sehingga memakan waktu yang cukup lama. Dalam perancangan mesin pembuat pelet menggunakan metode perancangan Pahl dan Beitz. Metode Pahl dan Beitz memiliki 4 tahapan penting yaitu perencanaan, desain konsep produk, desain bentuk dan desain detail sehingga desain yang dilakukan dapat memberikan solusi yang tepat. Mesin pembuat pelet yang dirancang dengan kapasitas 10 kg/jam meliputi proses pengolahan limbah cangkang telur menjadi tepung dengan unit penggiling dan pembuat pelet secara bersamaan.","PeriodicalId":394289,"journal":{"name":"Journal of Applied Mechanical Engineering and Renewable Energy","volume":"70 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-08-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139350638","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Pengaruh Variasi Temperatur Perlakuan Panas dan Media Pendingin Terhadap Sifat Mekanis dan Mikrostruktur Aluminium 2024","authors":"Yudhi Chandra Dwiaji","doi":"10.52158/jamere.v3i2.571","DOIUrl":"https://doi.org/10.52158/jamere.v3i2.571","url":null,"abstract":"Kombinasi aluminium 2024 adalah jenis logam yang lebih unggul dari berbagai jenis logam. Aluminium paduan 2024 digunakan pada industri pesawat sipil maupun militer yaitu pada bagian kulit pesawat. Peningkatan kualitas paduan aluminium ini dapat dilakukan dengan cara perlakuan panas. Untuk meningkatkan kualitas paduan aluminium 2024 tersebut dilakukan metode perlakuan panas. Penelitian ini dilakukan untuk mengetahui nilai kekerasan pada material aluminium 2024 sebelum dan setelah mengalami perlakuan panas. Pengujian ini dilakukan di Workshop Machining PT.GMF AeroAsia. menggunakan alat uji kekerasan setelah mengalami perlakuan panas. Spesimen yang akan diuji, yaitu aluminium sheet 2024 ketebalan 1.6mm dengan ukuran 30cm x 20cm. Pada proses pemanasan untuk aluminium 2024 dilakukan dengan cara memasukkan spesimen kedalam dapur pemanas hingga sampai pada temperatur 400˚ C dan 500˚ C, dan diikuti dengan proses penahanan dengan waktu masing - masing 35 menit. Setelah proses perlakuan panas, proses selanjutnya adalah proses pendinginan dengan cara mencelupkan aluminium 2024 kedalam wadah media pendingin oli dan air sampai suhu pada spesimen kembali normal. Setelah dilakukan pendinginan dilanjutkan dengan pengujian kekerasan hardness rockwell. Pada pengujian ini dilakukan 5 titik pengambilan data pada setiap spesimen dengan titik yang berbeda-beda. Hasil pengujian kekerasan hardness rockwell sebelum dilakukan perlakuan panas yaitu 29.62 HRB. Setelah dilakukan perlakuan panas menghasilkan angka kekerasan tertinggi terdapat pada spesimen uji dengan media pendinginan oli pada suhu 500˚ C yaitu 59.68 HRB. dan terendah terdapat pada perlakuan serupa dengan media pendingin air pada suhu 500˚ C yaitu 56.38 HRB.","PeriodicalId":394289,"journal":{"name":"Journal of Applied Mechanical Engineering and Renewable Energy","volume":"23 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-08-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139350641","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Pembuatan Model Turbin Air Dengan Sistem Sirkulasi Tertutup","authors":"Muh Anhar","doi":"10.52158/jamere.v3i2.609","DOIUrl":"https://doi.org/10.52158/jamere.v3i2.609","url":null,"abstract":"Modern society is very attached to technological advances, With community technology can easily meet energy needs, one example is the electrical energy processing of energy conversion machines using turbine energy.The purpose of this manufacture is to find a solution to meet the need for electrical energy, as well as solving problems encountered in areas where there is no stream or waterfall.. as for the methodology in making this includes time and place, tools making, Tools and Materials and Methods of execution of Flow diagrams.The calculation result for effective head = 0.3 m, with the water discharge used to move the runner Q = 0.00033836 m3/s, obtained power generated for 0,87 Watt. With the data planned, the main dimension of Pelton type turbine is the outer diameter of the runner Do = 435.28 mm, diameter of D = 400 mm, the number of bowl z = 59 pieces with 1 nozzle","PeriodicalId":394289,"journal":{"name":"Journal of Applied Mechanical Engineering and Renewable Energy","volume":"160 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-08-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139350661","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Rancang Bangun Alat Pemadat Tanah yang Ergonomis dengan Penggerak Motor Bensin","authors":"Abdul Hamid","doi":"10.52158/jamere.v3i2.542","DOIUrl":"https://doi.org/10.52158/jamere.v3i2.542","url":null,"abstract":"Pemadatan tanah dengan peralatan sederhana dapat mengakibatkan kualitas tanah padat yang kurang baik karena masih banyak bongkahan batu/kerikil yang belum diratakan pada tanah yang telah dipadatkan. Selain itu penggunaan peralatan yang sederhana juga dapat menyebabkan tingkat kelelahan pekerja meningkat akibat kerja otot yang begitu besar dan postur kerja yang tidak ergonomis. Sehingga perlu dibuat alat pemadat tanah. Dalam pembuatan alat pemadat tanah ini diperlukan teori atau metode sebagai pedoman persiapan dalam proses pembuatan alat tersebut. Mulai dari perhitungan tenaga mesin dan rangka yang digunakan, metode penggunaan data ergonomi, seperti analisis dimensi tubuh pada data antropometri. Hasil yang diperoleh dari perancangan adalah gaya sentrifugal sebesar 14,8 KN, berat pemadat saat beroperasi 79,4 kg, tinggi timbunan yang dapat dipadatkan 4-5 cm, luas pemadatan yang dicapai 250 m²/jam, dan frekuensi getarannya adalah 3 Hz atau 18,85 rad/s. Dari pembuatan alat ini dapat membantu proses pemadatan tanah dan meningkatkan efisiensi dan produktivitas penggarapan tanah atau lantai bangunan yang akan dilakukan khususnya bagi para pekerja bangunan di Pamekasan.","PeriodicalId":394289,"journal":{"name":"Journal of Applied Mechanical Engineering and Renewable Energy","volume":"39 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-08-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139350748","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Perawatan Mesin Diesel Generator Pada Kapal KN.SAR SADEWA 231","authors":"Lukas Kristianto, Waris Wibowo, Ningrum Astriawati, Nana Kristiawan","doi":"10.52158/jamere.v3i2.543","DOIUrl":"https://doi.org/10.52158/jamere.v3i2.543","url":null,"abstract":"Generator atau alternator merupakan kumparan atau gulungan tembaga yang terdiri dari stator (kumparan statis) dan rotor (berputar kumparan). Fungsi utama generator diatas kapal adalah untuk menyuplai kebutuhan daya listrik di kapal. Salah satu gangguan yang yang terjadi pada generator adalah sering panasnya generator (overheating) dan juga tidak keluarnya tegangan listrik pada generator. Tujuan dari penelitian ini adalah untuk melakukan optimasi perawatan tentang sistem perawatan generator pada kapal KN. SAR SADEWA 231. Penelitian  ini merupakan penelitian deskriptif kualitatif. Penelitian ini berada di engine Kapal KN SAR Sadewa 231 milik Kantor Pencarian dan Pertolongan Search and Rescue (SAR) Semarang. Hasil penelitian menunjukkan bahwa generator pada mesin utama Kapal KN. SAR SADEWA 231 menggunakan sistem pembangkit listrik generator berjenis alternating current (AC). Pelaksanaan perawatan sistem generator di kapal sudah baik. Bagian sistem generator yang dirawat meliputi dinamo stater, alternator, fuel filter, filter udara, cooler, nozzle, bosh pump, turbocharge, muffler, switch main board.","PeriodicalId":394289,"journal":{"name":"Journal of Applied Mechanical Engineering and Renewable Energy","volume":"45 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-08-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139350671","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Composite Material Impact Test With Resin Matrix And Kenaf Fiber Reinforcement Using The Hand Lay Up Method","authors":"Ferry Setiawan, M. Anhar, A. Akmal, Dhimas Wicaksono","doi":"10.52158/jamere.v3i1.400","DOIUrl":"https://doi.org/10.52158/jamere.v3i1.400","url":null,"abstract":"The purpose of this study was to obtain the results of impact testing on composite material with the arrangement of kenaf fibers in woven with volume variations of 0%, 10%, 20%, 30%, 40%, and 50%. The value obtained from impact testing with 0% fiber variation has an average energy absorption yield of 1.730623009 J and an average impact price of 0.01273547 J/mm², 10% fiber has an average absorption energy yield of 1.468150063 J and an average yield of 1.468150063 J The average impact price is 0.01080396 J/mm², 20% fiber has an average energy absorption yield of 1.730623009 J and an average impact price is 0.01273547 J/mm², 30% fiber has an average energy absorption yield of 1.214516698 J and the average yield is 1.214516698 J The average impact price is 0.008937499 J/mm², 40% fiber has an average energy absorption yield of 1.993095955 J and an average impact price is 0.01466698 J/mm², 50% fiber has an average energy absorption yield of 2.264328531 J and an average yield of 2.264328531 J Average Impact Price 0.016662952 J/mm². This composite material is made with epoxy resin as a binder and kenaf fiber as a reinforcing material. The method used is hand lay-up and specimen testing using charpy impact. After testing, a micro photo will be taken to see the best specimen fracture results.","PeriodicalId":394289,"journal":{"name":"Journal of Applied Mechanical Engineering and Renewable Energy","volume":"107 9","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"113961758","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Perancangan Bejana Tekan Dalam Aspek Kekuatan Mekanik Berdasarkan Code Standard ASME VII DIV 1 Studi Kasus Crude OilStripper Pada Central Processing Facilities Banyu Urip Project Cepu","authors":"Yudhi Chandra Dwiaji","doi":"10.52158/jamere.v3i1.446","DOIUrl":"https://doi.org/10.52158/jamere.v3i1.446","url":null,"abstract":"Shell, head, nozzle, dan penyangga bejana tekan berdasarkan hasil perhitungan manual dan banyak digunakan di pabrik petrokimia, energi (pembangkit listrik), minyak dan gas (pabrik minyak dan gas), dan sektor industri sebagai utuh. Analisis ini bertujuan untuk memahami kode-kode yang digunakan dalam perhitungan desain bejana tekan vertikal sehingga dapat dimanfaatkan di lapangan. Tujuan, nilai estetika, dan lingkungan kerja bejana tekan semuanya harus dipertimbangkan saat mendesain bentuknya. Tekanan desain, bobot mati kapal, beban angin, beban terkait gempa, dan beban gabungan termasuk beban kapal. Standar kode ASME Bagian VIII Divisi I digunakan saat merancang bejana tekan. Perangkat lunak Microsoft Excel digunakan untuk menghitung ketebalan shell, head, nozzle, dan support, atau perhitungan manual digunakan. Ketebalan shell, head, nozzle, dan support bervariasi menurut hasil perhitungan manual. Tebal shell 1 : 13mm , tebal shell 2 : 16mm , tebal shell 3 : 16mm , tebal top head : 13mm , tebal bot head : 16mm , tebal nozzle : 6mm , tebal skirt : 22mm","PeriodicalId":394289,"journal":{"name":"Journal of Applied Mechanical Engineering and Renewable Energy","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123207548","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Developing Technology Center Of Excellence (COE), Center Of Heavy Equipment To Prepare Competent Heavy Equipment Mechanics And Operators","authors":"A. Hamid, M. Fikri, I. Febriana, Laily Ulfiyah, Misbakhul Fatah, Lukman Hadiwijaya, Amin Jakfar, A. Wilujeng, Annafiyah Annafiyah, F. Rohmah, Ratna Ayu Pawestri K. D, Septian Dwi Wijaya, Nadiyah Ulfah, Dimas Aryo Wicaksono, Ghopal Ahmad Fachrudin, E. Harsono","doi":"10.52158/jamere.v3i1.438","DOIUrl":"https://doi.org/10.52158/jamere.v3i1.438","url":null,"abstract":"The low demand for vocational education graduates has led to high unemployment. The low demand for vocational education graduates has led to high unemployment. Vocational college graduates still need to be commensurate with industrial needs. Many Senior High School, Vocational High School, and Vocational College graduates have not been able to find a job for more than six months. Conditions on Madura island worsened this, and the lack of accelerated industrialization even after the Suramadu Bridge was built. Madura has the lowest Human Development Index (HDI) score in East Java. Data from the Central Bureau of Statistics (BPS) Sampang in Figures 2021) shows that the HDI value in 2020 only increased by 0.76 from 2019 of 62.70. Politeknik Negeri Madura (Poltera) together with PT. United Tractors and LSP ABI want to take an active role in improving Madura's HDI by preparing human resources on heavy equipment mechanics through the development of a centre of excellence for technology (PUT) of Heavy Equipment (CHE). Using the causal-comparative method, the researcher observed the impact of each stage on PUT-CHE development activities and reviewed the data to find causal factors and correlations. Poltera took a strategic step by equipping lecturers with virtual training on heavy equipment mechanics (SOBAT Program), organized by PT United Tractors. The SOBAT program has positively impacted heavy equipment engineering graduates in 2022, which has increased significantly. Academic data showed that 13 out of 34 heavy equipment mechanical engineering graduates were employed in leading heavy equipment industries before three months. Other data stated that three lecturers participating in Virtual Training on heavy equipment mechanics were selected as 50 interns at PT United Tractors.","PeriodicalId":394289,"journal":{"name":"Journal of Applied Mechanical Engineering and Renewable Energy","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122003843","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Pengaruh besaran arus dan kecepatan las terhadap angular distorsi pada SS304 dengan GMAW","authors":"Mohammad Azwar Amat, Ario Sunar Baskoro, Dhedhe Rodat Budi","doi":"10.52158/jamere.v3i1.440","DOIUrl":"https://doi.org/10.52158/jamere.v3i1.440","url":null,"abstract":"SS304 is a steel with good corrosion resistance, so it is widely used in various industrial worlds. The stainless-steel fabrication process generally uses a joining process by welding. To get a good welding result, it is necessary to choose the correct parameters to reduce the potential for welding imperfections. In the ISO 6520-1-520 standard, excessive distortion is a welding imperfection that must be avoided because it can cause angular misalignment, namely ISO 6520-1-508 standard. In this research, an experiment was conducted to determine the effect of current strength and welding speed on the angular distortion generated using GMAW. The current strength is 115, 120, and 125 A, while the welding speed is 3.6, 3.9, and 4.2mm/s. The angular distortion of the weld results is measured using a CMM (Coordinate Measuring Machine) after the material has experienced natural cooling. From the research results obtained, it is known that the greater the current strength, the greater the resulting angular distortion. On the other hand, if the welding speed is greater, the width of the weld bead and the resulting angular distortion will be smaller.","PeriodicalId":394289,"journal":{"name":"Journal of Applied Mechanical Engineering and Renewable Energy","volume":"94 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115440812","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}