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All Journal AUSTENIT SINTEK JURNAL: Jurnal Ilmiah Teknik Mesin Dinamisia: Jurnal Pengabdian Kepada Masyarakat MACHINERY: Jurnal Teknologi Terapan International Journal of Applied Business and International Management Jurnal Pengabdian Kolaborasi dan Inovasi IPTEKS International Journal of Mechanics, Energy Engineering and Applied Science (IJMEAS)
Zamheri, Ahmad
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Agriculture, Biological Sciences & Forestry Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Social Sciences Other

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The Implementation of IoT to monitor water quality in snakehead (Channa striata) bio floc in Desa Marta jaya, Kabupaten Ogan Komering Ulu: Penerapan IoT dalam menjaga kualitas air Kolam Bioflok Budidaya Ikan Gabus Di Desa Marta Jaya, Kabupaten Ogan Komering Ulu Tompunu*, Alan Novi; Rarassari, Madyasta Anggana; Inayatullah, Ahlam; Claudya Nurcahaya; Muharramah, Ulfah; Seprianto, Dicky; Zamheri, Ahmad; Zakaria, Zakaria
Dinamisia : Jurnal Pengabdian Kepada Masyarakat Vol. 8 No. 2 (2024): Dinamisia: Jurnal Pengabdian Kepada Masyarakat
Publisher : Universitas Lancang Kuning

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31849/dinamisia.v8i2.16930

Abstract

Pokdakan Karya Mandiri Jaya is a group of fish farmers located in Marta Jaya Village, Ogan Komering Ulu Regency, South Sumatra Province. The main problem faced by Pokdakan Karya Mandiri Jaya is the relatively low survival rate of snakehead fish. This group is only able to produce 5000 snakehead fish larvae at a time spawning with the survival rate of the snakehead fish becoming adult snakehead fish around 70-75%. This is due to a decrease in water quality caused by the accumulation of leftover feed which is not handled regularly. Therefore, a system is needed to monitor pH, temperature and turbidity of water so that cultivators can take initial preventive measures. Service activities are carried out in three stages, the first stage was analytical situation, the second is planning and the last is implementation. The IoT device that was previously installed has already carried out the calibration process. The calibration results showed that the IoT tool can be used in the Pokdakan Karya Mandiri Jaya snakehead fish cultivation. It is hoped that from the application of IoT technology, Pokdakan Karya Mandiri Jaya can reduce the risk of death of snakehead fish and increase snakehead fish production.
PENGARUH WAKTU STIRRING, FRAKSI VOLUME DAN UKURAN BESAR BUTIR PARTIKEL SiC TERHADAP KEKERASAN MMC Al 6061 – SiC DENGAN SISTEM STIRRCASTING Zamheri, Ahmad
AUSTENIT Vol. 3 No. 02 (2011): AUSTENIT: Oktober 2011
Publisher : Politeknik Negeri Sriwijaya, Indonesia

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Abstract

Material Metal Matrix Composite (MMC) merupakan material yang banyak dikembangkan akhir-akhir ini karena keunggulan yang dimilikinya dibandingkan dengan material lain baik murni maupun paduan. Material MMC yang merupakan kombinasi dari matrik logam dengan penguatnya (reinforcement) diharapkan memiliki sifat yang lebih baik dibanding dengan komponen penyusunnya. Paduan Al6061-Si-Mg/SiCp, merupakan salah satu contoh material MMC, dimana paduan alumunium sebagai matrik dan SiC sebagai penguat. Material yang dihasilkan dari kombinasi antara paduan alumunium dengan SiC ini diharapkan akan memiliki sifat ringan dan kekerasan tinggi yang tinggi. Salah satu metode pembuatan MMC paduan Al6061-Si-Mg/SiCp ini adalah pengecoran (casting). Namun teknologi pengecoran yang umum digunakan untuk memproduksi material ini masih tergolong teknologi tinggi dan mahal. Untuk itu pada penelitian ini dicoba untuk memproduksi material MMC ini dengan teknologi pengecoran yang sederhana. Metode yang dipilih adalah metode stir-casting karena dianggap paling mudah dan mungkin membuat material ini. Menurut “rule of mixture”, fraksi volume partikel penguat merupakan salah satu variabel yang sangat mempengaruhi kekuatan, sehingga pada penelitian ini dipilih fraksi volume partikel penguat sebagai parameter pengujian. Dari penelitian ini didapat bahwa semakin besar fraksi volume partikel penguat, maka kekerasan material komposit akan semakin meningkat.
KAJI EKSPERIMENTAL SIMULATOR POMPA HIDRAM DENGAN VARIASI FREKUENSI OSKILASI DAN TINGGI DISCHARGE Zamheri, Ahmad; Mulyadi, Mulyadi; Arnoldi, Dwi
AUSTENIT Vol. 4 No. 02 (2012): AUSTENIT: Oktober 2012
Publisher : Politeknik Negeri Sriwijaya, Indonesia

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Abstract

Di Indonesia banyak air terjun alam yang belum dapat dimanfaatkan. Di sisi lain, masih banyak areal pertanian kurang produkktif karena tidak ada sarana irigasi teknis. Kedua penomena memiliki korelasi dan dapat bersinergi melaluipemanfaatan teknologi. Penelitian memiliki tujuan jangka panjang untuk ikut mensosialisasikan pemakaian energi potensial air terjun yang dapat dimanfaatkan sebagai sarana irigasi pertanian. Metode penelitian yang diterapkan adalah kaji eksperimen terhadap sebuah Prototipe Pompa Hidram yang berfungsi untuk menaikkan air. Pompa bekerja berdasarkan prinsip Water Hammer. Pemakaian pompa Hidram untuk skala industri adalah untuk keperluan irigasi jika dilokasi terdapat sumber air terjun alam dengan ketinggian minimum sekitar 5 meter serta debit minimum 0,5 m3 /detik. Kegiatan penelitian dipusatkan di Laboratorium M&R Jurusan Teknik Mesin Politeknik Negeri Sriwijaya. Variabel utama penelitian adalah efisiensi (η), sedang variabel bebas adalah ketinggian pipa buang (H2) dan frekwensi oskilator (f).
COMPOSITE MATRIX POLYESTER REINFORCE FIBRESKIN GELAM; PREPARATION AND MECHANICAL PROPERTIES Mataram, Agung; Rizal, Samsul; Zamheri, Ahmad
AUSTENIT Vol. 7 No. 1 (2015): AUSTENIT: April 2015
Publisher : Politeknik Negeri Sriwijaya, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (478.86 KB)

Abstract

Gelam (melaleuca leucandendra) is one plant that is widely available in South Sumatra potential into cellulose extraction. His plant is widely used for building materials and wood products processed the rest of the powder timber furniture industry. While, the skin of this plant is not used for anything. In fact, from  the structure of the skin that have fiber, skin of gelam  has the potential to be a valuable product, one of them with a matter in the form of composite reinforcement. While today's technology demands urgent environmental friendly technology product makers, especially friendly to the environment. The analysis conducted in this study utilizes softwood bark fiber serves as reinforcement to resin volume fraction ratio : Resin 100% : Filler 0%(A), Resin 90% : Filler 10% (B) Resin 80% : Filler 20%(C), Resin 70% : Filler 30%(D), Resin 60% : Filler 40% (E). Observed characteristics are kekutan composite tensile and impact strength. On average the highest tensile stress is the value obtained from the variation of the volume fraction of the specimen D (70% resin: 30% fiber) that is equal to 17.96 N/mm2, while the average value obtained from the lowest voltage variation of the volume fraction of the specimen B (90 % resin: 10% fiber) that is equal to 12:35 N/mm2. The average value of tensile strain obtained specimens A, B, C, D and E are the same, namely 0.68%. High MOE happens to specimens B, C and E, it indicates that the greater the value of the modulus of elasticity of the material is more difficult to increase the length, in this case the smallest specimen D modulus of elasticity. The average value of the energy required to break the specimen is equal to the highest Joule 34.728, obtained from the variation of the volume fraction of specimen D (70% resin: 30% fiber).
PENGARUH FRAKSI VOLUME PENGUAT ABU TERBANG, SERBUK BESI DAN MATRIK RESIN TERHADAP KEAUSAN DAN KEKERASAN UNTUK BAHAN KAMPAS REM Hadi, Qomarul; Zamheri, Ahmad
AUSTENIT Vol. 9 No. 1 (2017): AUSTENIT: April 2017
Publisher : Politeknik Negeri Sriwijaya, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (947.799 KB)

Abstract

Abu terbang merupakan limbah padat yang dihasilkan dari pembakaran batubara pada pembangkit tenaga listrik. Abu terbang ini terdapat dalam jumlah yang cukup besar sehingga menimbulkan masalah lingkungan seperti pencemaran udara atau perairan dan penurunan ekosistem. Kandungan abu terbang ini memungkinkan untuk digunakan sebagai penguat komposit bahan kampas rem. Komposisi bahan kampas rem yang diteliti ini bermatrik resin polyester dengan penguat abu terbang dan serbuk besi. Penelitian ini bertujuan untuk mengetahui sifat mekanik dari material bahan kampas rem dengan pengujian keausan, kekerasan dan pengamatan struktur permukanan. Perbandingan fraksi volum pada penelitian ini 40% abu terbang 50% resin polyester 10% serbuk besi , 30% abu terbang 50% resin polyester 20% serbuk besi ; 20% abu terbang 50% resin polyester 30% serbuk besi .Hasil pengujian laju keausan terendah pada komposisi 20% abu terbang, 50% resi polyester dan 30% serbuk besi dengan nilai 1,1321E-06 mm²/kg. Sedangkan tingkat kekerasan tertinggi pada komposisi 20% abu terbang, 50% resi polyester dan 30% serbuk besi  yaitu 24,5 HRB. Jadi kondisi optimum yang didapat pada penelitian ini terjadi pada perbandingan variasi fraksi volume 20% abu terbang 50% resin polyester 30% serbuk besi.
RANCANG BANGUN MESIN BOR TANAH UNTUK MEMBUAT LUBANG RESAPAN AIR (BIOPORI) Sailon, Sailon; Zamheri, Ahmad; Wilza, Romi; Zainuddin, Zainuddin
AUSTENIT Vol. 9 No. 2 (2017): AUSTENIT: Oktober 2017
Publisher : Politeknik Negeri Sriwijaya, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (952.064 KB)

Abstract

The designed biopore drill machine uses manual manual hoist / manual crank system that serves to raise and lower the drill bit. Engines that are connected to the drill bit vertically in addition to functioning to rotate the drill bit also serve as a weight so that the drill bit can enter the ground. In addition, the biopori drill machine is made of a rectangle with the aim that the machine at the time of operation becomes steady (not shifted) and the legs are wheeled in order tobe easy to move around. Biopori drill machine is a modification of existing tools, both variations of the form and additional accessories, with the aim to facilitate the operation, transfer and optimize the work with a relatively low cost and physical fitness of the operator is maintained and safety can be more.secure. This research focuses on designing the shape and size of the machine so that it is easy to operate and transfer, calculating the strength of each  component in accordance with the scientific method and testing the engine performance. The purpose of this study is expected to contribute to technology in the form of: to produce a prototype in order to enrich khasana appropriate equipment that can be utilized to help the manufacture of biopore holes, improve the quality and quantity of infrastructure equipm entresear chinstitute sustainable. In designing the build of this biopori drill first collect planning data.  A part from field data the data is taken from the literature.
ANALISIS PEMANFAATAN LIMBAH KERTAS DAN KARDUS UNTUK PENYERAPAN SISA FLUIDA CAIR PADA INDUSTRI (STUDI KASUS di PT. XYZ) Seprianto, Dicky; Yunus, Moch; Zamheri, Ahmad; Endra, Dodi; Yusuf, Moch; Burhanuddin, Alief
AUSTENIT Vol. 10 No. 2 (2018): AUSTENIT: Oktober 2018
Publisher : Politeknik Negeri Sriwijaya, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (549.451 KB)

Abstract

Kertas merupakan telah menjadi salah satu kebutuhan pokok disemua aktifitas perkantoran pada setiap Industri, sehingga tidak bisa dihindari lagi kertas dapat menjadi limbah yang langsung dibuang ke TPA. Begitupun juga dengan Kardus bekas kemasan barang-barang khususnya barang mueble perkantoran seperti bekas kemasan pembelian kursi, meja, AC dan barang perkantoran lainnya serta bekas kemasan makanan dan minuman merupakan limbah yang sama seperti halnya dengan kertas dapat langsung dibuang ke TPA. Oleh karena itu peneliti akan mencoba memanfaatkan limbah kertas dan kardus untuk menyerap dan mengisolir tumpahan, ceceran, maupun genangan sisa fluida cair agar tidak terjadi pencemaran lingkungan. Dengan menggunakan alat yang disebut Absorbent Pillow dari campuran cacahan kertas dan kardus. Alat ini dapat digunakan untuk menyerap sisa fluida cair seperti: genangan air, tumpahan minyak, maupun bocoran oli. Dalam penelitian ini akan dianalisis seberapa besar daya serap zat cair (air, oli, minyak mentah) terhadap campuran kertas dan kardus dengan waktu dan kompisisi yang ditentukan.  
STUDI PENYUSUTAN PEMBUATAN GIGI PALSU DENGAN 3D PRINTING FDM PENDEKATAN METODE TAGUCHI Zamheri, Ahmad; Arifin, Fatahul; Syahputra, Angga Panjy
AUSTENIT Vol. 12 No. 2 (2020): AUSTENIT: Oktober 2020
Publisher : Politeknik Negeri Sriwijaya, Indonesia

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Abstract

Fused Deposition Modeling (FDM) is a 3D Printing technique used to print products using filaments as material. The printed product has ideal geometric characteristics if it has meticulous size and perfect shape. The main objective of this research is to find out the shrinkage of the material is the filament human denture product using prameter is different. In the process of testing this test using the tool testers Digimatic Vernier Caliper Mitutoyo Absolute, which uses accuracy 0,02 mm. The Taguchi method are used to analyzed the data result. Manufacture process which is used Layer Height 0,15 mm, Print Speed 20 mm/s, dan Print Temperature 220 ⁰C.Keywords: FDM 3D Printing, Shrinkage, Taguchi 
PENGARUH FRAKSI VOLUME DAN ORIENTASI PADA KOMPOSIT SERAT GAMBAS SERTA TEBU TERHADAP KEKUATAN BENDING Zamheri, Ahmad; Seprianto, Dicky; Sailon, Sailon; Tamilio, Hopay; Andika, Ekki; Ramadoni, Rizki
AUSTENIT Vol. 15 No. 1 (2023): AUSTENIT: April 2023
Publisher : Politeknik Negeri Sriwijaya, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53893/austenit.v15i1.5188

Abstract

The purpose of this study is to determine the influence of volume fractions and orientation directions on the composite of gambas fiber and sugarcane fiber on bending strength. In this study, the variation in the volume fraction of resin, gambas fiber, and sugarcane fiber was (Resin 60%: Sugarcane Fiber 20%: Gambas Fiber 20%), (Resin 70%: Sugarcane Fiber 15%: Gambas Fiber 15%), and (Resin 80%: Sugarcane Fiber 10%: Gambas Fiber 10%) with the orientation direction of gambas fiber and sugarcane fiber 90°/90°, 90°/45°and 90°/0°. In this test, the bending test specimen was made according to the ASTM D 790-02  standard and the test result data were analyzed using the Two-Way ANOVA method assisted by Microsoft Exel software. This study showed that the volume fraction (Resin 60%: Sugarcane Fiber 20%: Gambas Fiber 20%) and the orientation direction of gambas fiber and sugarcane fiber 90°/90° have  the best bending strength  which is 48.33 (N/,) this value is higher than that of Multiplex with a bending strength value of  26,60 MPa.
PERFORMANCE ANALYSIS OF BIO-BRIQUETTING MACHINE WITH SCREW EXTRUDER TYPE BASED ON QUALITY OF BIO-BRIQUETTES Puspa, Dilia; Yerizam, Muhammad; Zamheri, Ahmad; Wardhana, Agum Try
AUSTENIT Vol. 15 No. 2 (2023): AUSTENIT: October 2023
Publisher : Politeknik Negeri Sriwijaya, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53893/austenit.v15i2.7218

Abstract

he purpose of this study is to design a bio-briquetting machine with screw extruder type to convert biomass into higher density based on quality standard of charcoal briquette SNI 01-6235-2000 and SNI 19-4791-1998. The machine had production capacity of 30 kg/hour, equipped with the motor of 1 HP which transmitted to the machine through pulley and belt, and also has cutter which rotates continuously. The raw materials of the bio-briquette were using bagasse and coconut shells. There are 6 parameters that are used to test the quality of bio-briquette such as calorific value, inherent moisture, ash content, dependability pressure, volatile matter content, and fixed carbon content. The bio-briquette was made from the raw materials using amylum adhesives with ratio 30:70:30. With feed as 5 kg, the machine produced 50 pieces of bio-briquette. The machine could produce good bio-briquettes such as calorific value of 6,511.3 cal/g, inherent moisture of 1.97%, ash content of 5.88%, volatile matter of 27.71%, fixed carbon content of 64.99% and compressive strength was 16.98 kg/cm2.
Co-Authors Africano, Fernando Agung Mataram Andika, Ekki Anwar, Zainuri Apriansyah, Icvan Ardi, Ardiansyah Arnoldi, Dwi Burhanuddin, Alief Claudya Nurcahaya Effendy, Sahrul Eko Setiawan Endra, Dodi Erlinawati Erlinawati, Erlinawati Fatahul Arifin, Fatahul Firmansyah, Wahyudi Franando, Franando HIDAYATI, BAITI Inayatullah, Ahlam Indah Pratiwi Irawan Malik Mardiana Mardiana Mochammad Yunus, Mochammad Muhammad Rifki Muhammad Yerizam Muharramah, Ulfah Mulyadi Mulyadi Nasution, Gaizka Ghifari Negash, Semir M Puspa, Dilia Putri, Dhea Radika Putri, Fenoria Qomarul Hadi Ramadoni, Rizki Rarassari, Madyasta Anggana Ridho, Sari Lestari Zainal Rizal, M. Syahrul Safitri, Rissa Aulia Sailon, Sailon Samsul Rizal Saputra, Reno Seprianto, Dicky Sumarna, Herlin Syahputra, Angga Panjy Syamsiar, Syamsiar Syamsul Rizal Tamilio, Hopay Tompunu*, Alan Novi Wardhana, Agum Try Wilza, Romi YAHYA, ABDURRAHMAN Yunus, Muhhammad Yusuf Dewantoro Herlambang Yusuf, Moch Zainuddin, Zainuddin Zakaria Zakaria Zikri, Ahmad