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All Journal JURNAL PENGABDIAN KEPADA MASYARAKAT Jurnal Pengabdian Kepada Masyarakat (Indonesian Journal of Community Engagement) Panrita Abdi - Jurnal Pengabdian pada Masyarakat Jurnal POLIMESIN Journal of Welding Technology Jurnal Teknologi
Nurdin Nurdin
Politeknik Negeri Lhokseumawe
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FILTERISASI AIR TANAH MENJADI AIR BERSIH PADA DAYAH MODERN IHYAAUSSUNNAH DI KOTA LHOKSEUMAWE Elfiana Elfiana; Nahar Nahar; Nurdin Nurdin
JURNAL PENGABDIAN KEPADA MASYARAKAT Vol 22, No 2 (2016)
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/jpkm.v22i2.4666

Abstract

Kebutuhan air bersih terus meningkat seiring dengan pertumbuhan penduduk dan kemajuan zaman. Upaya pemenuhan air bersih dapat dilakukan melalui eksploitasi air tanah menjadi air bersih melaluifilterisasi. Tujuan kegiatan pengabdian kepada masyarakat ini adalah mengatasi permasalahankebutuhan air bersih melalui penerapan ipteks pelaksanaan instalasi penyediaan sarana air bersih sistimfilterisasi air tanah berkapasitas skala rumah tangga bagi santri di Dayah Modern Ihyaussunnah kotaLhokseumawe.  Uji karakteristik sampel air tanah pada lokasi Dayah Modern Ihyaussunnah dilakukanpada pra rancangan sistim filterisasi, diperoleh kualitas air tanah berdasarkan parameter pH 6,96, TDS1750 mg/L, turbidity 1,54 NTU, kandungan besi (Fe) 1,5904 mg/L, tingkat kesadahan 100,78 mg/Ldan secara visual air terlihat berwarna kuning kecoklatan.  Perancangan sistim filterisasi didasarkanpada kualitas air yang diperoleh, terdiri dari media pasir silika mangan zeolit, media karbon aktif, mediaresin kation dan finalisasi filter dengan variasi ukuran cartridge.  Hasil perancangan menunjukkaninstalasi penyediaan air bersih yang dipasang dengan kapasitas 40 L/menit mampu menghasilkankualitas air yang sudah layak digunakan oleh para santri untuk kebutuhan MCK (mandi, cuci, kakus)dengan parameter analisa air tidak berwarna, pH 7,25, TDS 1350 mg/L, turbidity 0,08 NTU,konsentrasi Besi 0,1186 mg/L, dan tingkat kesadahan 88,18 mg/L.  Berdasarkan PERMENKES RINo.416/MENKES/PER/IX/1990 kualitas air yang dihasilkan berkatagori Gol B yaitu katagori air yangdapat digunakan sebagai air baku untuk air minum.
Appropriate Technology Program of Postharvested Coffee: Production, Marketing, and Coffee Processing Machine Business Unit Indra Mawardi; Nurdin Nurdin; Zulkarnaini Zulkarnaini
Jurnal Pengabdian kepada Masyarakat (Indonesian Journal of Community Engagement) Vol 5, No 2 (2019): Agustus
Publisher : Direktorat Pengabdian kepada Masyarakat Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (913.956 KB) | DOI: 10.22146/jpkm.36470

Abstract

The growth of the area of coffee plantations continues to increase every year. Therefore, it needs to be supported by the readiness of postharvest technology that is suitable to produce the quality coffee beans. This activity aims to establish a business unit for the Production Center of Postharvested Coffee Technology (PCPCT). This unit business produces and sells the postharvested coffee machines. The method of implementing the activities starts from the establishment of business unit institutions, provision of raw materials, production processes, and the final product marketing. The results of the activity indicate that PCPCT was successfully formed. Appropriate Technology Program (ATP) has been implemented in such way until producing a mobile coffee bean peeling machine (pulper) system, a coffee ore washing machine, a mobile coffee bean peeling machine system, and a coffee bean sorting machine with a vibration mechanism (huller). The product marketing mechanism runs through media brochures, internet websites, and showrooms in the exhibition venues.
INOVASI MESIN-MESIN TEKNOLOGI PASCAPANEN KOPI SEBAGAI PRODUK USAHA INTELEKTUAL KAMPUS POLITEKNIK NEGERI LHOKSEUMAWE Indra Mawardi; Nurdin Nurdin; Zulkarnaini Zulkarnaini
Panrita Abdi - Jurnal Pengabdian pada Masyarakat Vol. 4 No. 1 (2020): Jurnal Panrita Abdi - Februari 2020
Publisher : LP2M Universitas Hasanuddin

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1203.24 KB) | DOI: 10.20956/pa.v4i1.7068

Abstract

Innovation of Coffee Postharvest Technology Machines as Campus Intellectual Business Products Lhokseumawe State PolytechnicAbstract. The growth of the area of coffee plantations continues to increase every year needs to be supported by the readiness of postharvest technology that is suitable to be able to produce quality coffee beans. The Lhokseumawe State Polytechnic has taken the opportunity to form a business unit for the production of appropriate the technology of the postharvest coffee machine, through a service program with the scheme of the Campus Intellectual Product Business Development Program. The center for production of machinery for appropriate technology for postharvest coffee The Lhokseumawe State Polytechnic aims to increase the productivity of coffee farmers through the mechanization of the coffee postharvest process by innovating appropriate technology technologies for coffee postharvest. Besides that to support campus independence through the business of producing coffee postharvest machines. The method of implementing activities starts from machine design, provision of raw materials, production processes, to product marketing. From the results of the activity has been formed production centers of appropriate technology for postharvest coffee machines. The center for production of machinery appropriate technology postharvest coffee has made innovations in coffee postharvest technology machines. Innovative products from the machine production center for appropriate technology for postharvest coffee include mobile pulper machines, coffee bean washing machines, mobile huller machines and multi-functional hullers, coffee bean sorting machines, and vibrating systems. These machines have advantages of construction and mobilization compared to products that have been circulating in the market so far. Product marketing has been done through a showroom as a place to showcase products, sales websites, and online stores.Keywords: innovation, postharvest technology, coffee, campus intellectual products.Abstrak. Pertumbuhan luas perkebunan kopi terus meningkat setiap tahun perlu didukung dengan kesiapan teknologi pascapanen yang cocok untuk dapat menghasilkan biji kopi bermutu. Politeknik Negeri Lhokseumawe telah mengambil peluang tersebut dengan membentuk unit usaha teknologi tepat guna pascapanen kopi, melalui program pengabdian dengan skim Program Pengembangan Usaha Produk Intelektual Kampus (PPUPIK). Kegiatan PPUPIK ini bertujuan menunjang kemandirian kampus melalui usaha produksi mesin-mesin pascapanen kopi melalui inovasi dan produksi mesin-mesin TTG pascapanen kopi. Kegiatan ini pada akhirnya akan meningkatkan produktifitas petani kopi melalui mekanisasi proses pascapanen kopi yang baik. Metode kegiatan PPUPIK  terbagi dalam tiga tahapan, yaitu tahapan produksi, pemasaran dan pendirian unit usaha. Tahapan produksi  dimulai dari design mesin, penyediaan bahan baku, proses produksi, sampai pemasaran produk. Dari hasil kegiatan telah terbentuk unit usaha Pusat Produksi Mesin-mesin Teknologi Tepat Guna Pascapanen Kopi. Unit usaha ini telah melakukan inovasi mesin teknologi pascapanen kopi. Produk inovasi dari Pusat Produksi Mesin-mesin Teknologi Tepat Guna Pascapanen Kopi antara lain mesin pulper mobile, mesin pencuci biji kopi, mesin huller mobile dan huller multi fungsi, dan mesin sortasi biji kopi sistem getar. Mesin-mesin TTG tersebut mempunyai keunggulan dari konstruksi dan mobilisasi dibandingkan produk yang telah beredar dipasaran selama ini. Pemasaran produk telah dilakukan melalui showroom sebagai tempat lokasi pamer produk, website penjualan, dan toko online.Kata kunci:  inovasi, teknologi pascapanen, kopi, produk intelektual kampus.
Design of Natural Convection Solar Dryer for Coffee Beans with Monitoring System Based on Internet of Things Nurdin Nurdin; Irwin Syahri Cebro; Azhar Azhar; Hendrawati Hendrawati
Jurnal POLIMESIN Vol 20, No 1 (2022): February
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (654.258 KB) | DOI: 10.30811/jpl.v20i1.2613

Abstract

The process of monitoring the drying of coffee beans so far is still done traditionally so that the effectiveness of the drying process is still low. The IoT-based drying monitoring process is expected to provide better effectiveness and time efficiency. This research designs and manufactures a solar dryer with natural convection heat transfer for coffee beans equipped with an Internet of Things-based monitoring system. The purpose of this study is to develop the performance of a solar dryer with natural convection with the addition of an IoT-based monitoring unit. The research begins with a technical plan for the main components of the dryer. Components whose shapes, dimensions, and materials have been planned will be outlined in the form of detailed technical drawings. Detailed technical drawings will be a guide in the dryer manufacturing process. The main components of the dryer are solar collectors, drying chambers, and an IoT-based monitoring system. The solar collector will function to capture heat from the sun which will flow naturally into the drying room. An IoT-based monitoring system will capture the temperature and humidity (DFRobot DHT22 sensor) in the solar collector, drying room, and the environment of the dryer. In addition, a Bh1750 sensor to capture the intensity of the sun is also embedded in this monitoring system. This monitoring system will be connected to the internet network where the data will be sent to a cloud data server. The recorded data can then be downloaded using a mobile device or personal computer connected to the internet network. This IoT-based monitoring system was chosen so that performance data from the dryer can be monitored in real-time and online. The results of this study are a prototype dryer with a household capacity of 9 Kg equipped with an IoT-based monitoring system has been built and can be implemented properly
Analisa pengaruh putaran spindel pada friction welding terhadap tensile strength Alumunium A6061 Teuku Haikal Derniawan; Nurdin Nurdin; Fakhriza Fakhriza
Journal of Welding Technology Vol 3, No 1 (2021): June
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jowt.v3i1.2034

Abstract

The welding process using the friction welding method uses friction energy which turns into heat to join two metals. The welding process that occurs on the touch surface of the two metals results in a larger welding area compared to other welding methods where the welding area is only at the contact edge of the metal being joined. With the welding area that is on the entire surface of the joined plane, it allows this type of friction welding joint to accept a greater torsional load, so that in its application friction welding is very suitable for use in the process of joining shafts and metal materials that have circular profiles. The purpose of this study was to determine the effect of spindle rotation on friction welding on the mechanical properties of welding joints on Aluminum 6061 material. Its mechanical properties include a tensile strength test, with variations in spindle rotation on a lathe using 6061 aluminum material. Based on the results of the tensile test at 1500 rpm where the maximum stress on the A1 sempel is 8.88 Kgf/mm2, A2 sempel 8.83 Kgf/mm2 and sempel A3 10,83 Kgf/mm2. And at 2500 rpm where the tensile strength of the B1 sample is 10.73 Kgf/mm2, the B2 sempel is 11.26 Kgf/mm2 and the B3 sempel is 8.20 Kgf/mm2. From the results of the tensile test, it was obtained that the strength of the 6061 Aluminium joint by the friction welding method was the highest yield strength of 5.8 kg/mm2 and a maximum tensile strength of 11.26 kg/mm2, and the raw material tensile strength was 12.6 kgf/mm2, the tensile strength of raw material and material after friction welding differs only slightly
Analisa kekuatan sambungan material AISI 1050 dengan ASTM A36 dengan variasi arus pada proses pengelasan SMAW Aditia Aditia; Nurdin Nurdin; Adi Saputra Ismy
Journal of Welding Technology Vol 1, No 1 (2019): June
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (482.053 KB) | DOI: 10.30811/jowt.v1i1.1129

Abstract

Metal joining is a process carried out to connect 2 or more metal parts of a similar or dissimilar metal. Connection strength is the goal of the process of connecting metals or materials. SMAW welding is a process of connecting metals or materials using heat energy. The purpose of this study was to determine the effect of welding currents on the tensile strength of AISI 1050 and ASTM A36 material links. In this study, test data show that in the welding process using 120A current the tensile strength value is 51.27 kgf / mm2, followed by welding using a current of 140A with 49.31 kgf / mm2, and welding using a current 160A 48.25 kgf / mm2. In tensile testing of welding current variations with currents 120A, 140A, and 160A, all fractures approach the welded joint. From the test data it can be concluded that the current affects the tensile strength of the material which the process is affected by arc voltage, current magnitude, welding speed, magnitude of penetration and electric polarity. Determination of the amount of current in connecting metals using arc welding affects the efficiency of the welding results.Keywords: SMAW Welding, Tensile Testing, AISI 1050 Steel and ASTM A36                                                          AbstrakPenyambungan logam adalah suatu proses yang dilakukan untuk menyambung 2 bagian logam atau lebih baik logam yang sejenis maupun tidak sejenis. Kekuatan sambungan merupakan tujuan dari proses penyambungan logam atau material. Pengelasan SMAW merupakan suatu proses penyambungan logam atau material dengan menggunakan energi panas. Tujuan dari penelitian ini adalah untuk mengetahui pengaruh arus pengelasan terhadap kekuatan tarik pada sambunagn material AISI 1050 dan ASTM A36. Pada penelitian ini, Data pengujian menunjukkan bahwa pada proses pengelasan menggunakan arus 120A nilai kekuatan tarik adalah  sebesar 51,27  kgf/mm2, di ikuti oleh pengelasan menggunakan arus 140A dengan 49,31 kgf/mm2, dan pengelasan menggunakan arus 160A 48,25 kgf/mm2. Dalam pengujian tarik variasi arus pengelasan  dengan arus 120A, 140A, dan 160A, semua patah mendekati sambungan las. Dari data uji tersebut dapat disimpulkan bahwa arus berpengaruh terhadap kekuatan tarik material yang proses tersebut dipengaruhi oleh tegangan busur, besar arus, kecepatan pengelasan, besarnya penembusan dan polaritas listrik.Penentuan besarnya arus dalam penyambungan logam menggunakan las busur mempengaruhi efisiensi dari hasil pengelasan.Kata kunci: Pengelasan SMAW, Pengujian tarik, Baja AISI 1050 dan ASTM A36   
Pengaruh jenis kampuh terhadap ketangguhan sambungan pengelasan material St37 dengan AISI 1050 menggunakan proses SMAW Muhammad Siddiq; Nurdin Nurdin; Ismi Amalia
Journal of Welding Technology Vol 1, No 1 (2019): June
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (526.939 KB) | DOI: 10.30811/jowt.v1i1.1453

Abstract

The strength of the material joints is one of the expected goals of the material joints process using the welding process. This study aims to determine the effect of welding groove on the toughness of the welded joints in the SMAW welding process by using E7016 electrodes. This research uses St37 and AISI 1050 steel materials, St37 including low carbon steel and Aisi 1050 including medium carbon steel. The material is given a welding treatment with a variation of single V groove, single tire, and double tire using reverse DC polarity SMAW welding, the welding position used is horizontal or underhanded and the current used is 100 Amperes. The welding specimens were tested by the charpy method to determine the value of the material joints toughness. The Charpy Method Impact test results show that specimens of single V groove, single tapered, and Double tapered have varying absorbed energy values. Single V groove has the highest absorbed energy value with an average value of 256 Joules and 3.21 Joules / mm2, compared to single tapered and double tapered groove. The type of fracture obtained is also different, for specimen V groove and a single tapered duct fracture while double tapered groove occurs brittle fracture.Keywords: Groove, SMAW, Toughness, E7016, St37 steel and AISI 1050AbstrakKekuatan sambungan material merupakan salah satu tujuan yang diharapkan dari proses penyambungan material menggunakan proses pengelasan. Penelitian ini bertujuan untuk mengetahui pengaruh kampuh pengelasan terhadap ketangguhan sambungan las pada proses las SMAW dengan menggunakan elektroda E7016. Penelitian ini menggunakan material baja St37 dan AISI 1050, St37 termasuk baja karbon rendah dan Aisi 1050 termasuk baja karbon sedang. Bahan diberi perlakuan pengelasan dengan variasi kampuh V tunggal, Tirus tunggal, dan Tirus ganda dengan menggunakan las SMAW DC polaritas terbalik, posisi pengelasan yang digunakan adalah mendatar atau bawah tangan dan arus yang digunakan adalah 100 Ampere. Spesimen pengelasan dilakukan pengujian impak metode charpy untuk mengetahui nilai ketangguhan sambungan material.  Hasil pengujian Impak Metode charpy menunjukkan bahwa spesimen kampuh V tunggal, tirus tunggal, dan tirus Ganda memiliki nilai energi yang diserap bervariasi. Kampuh V tunggal mempunyai nilai energi yang diserap tertinggi dengan nilai rata-ratanya sebesar  256 Joule dan 3,21 Joule/mm2, dibandingkan dengan kampuh tirus tunggal dan tirus ganda. Jenis perpatahan yang didapat juga berbeda, untuk spesimen kampuh V dan tirus tunggal terjadi patah ulet sedangkan kampuh tirus ganda terjadi patah getas.Kata kunci : Kampuh, SMAW, Ketangguhan, E7016, baja St37 dan AISI 1050
Kajian Pengaruh Rapat Arus pada Pelapisan Hard Chrome terhadap Kekerasan Permukaan Baja Karbon Rendah (ST 37) Nurdin Nurdin; Ichsan Maulana; Yuniati Yuniati; Ismi Amalia
Jurnal Teknologi Vol 22, No 1 (2022): April 2022
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/teknologi.v22i1.2902

Abstract

AbstractThe hard chrome process is one of the most widely used metal finishing methods to avoid corrosion, besides that hard chrome can improve metal quality such as hardness. The Hard chrome process is carried out by varying the current density of 30 Amp/dm2, 30 Amp/dm2, 40 Amp /dm2 and 50 Amp/dm2 with a coating time of 40 minutes at a solution temperature of 50 ᵒC. After the hard chrome process, the surface hardness test was carried out using a microvickers indent with a loading of 25 g.f. The results showed that the layer thickness and hardness increased when the current strength increased. The highest hardness value occurred at a current of 4 amperes of 551.6 VHN and a layer thickness of 1.80 microns.
Co-Authors Adi Saputra Ismy Aditia Aditia Amalia, Ismi Azhar Azhar Elfiana Elfiana Fakhriza Fakhriza Hendrawati Hendrawati Ichsan Maulana Indra Mawardi Irwin Syahri Cebro Ismi Amalia Muhammad Siddiq Nahar Nahar Teuku Haikal Derniawan Yuniati Yuniati Zulkarnaini Zulkarnaini