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INDONESIA
Jurnal Gamma
Published by Universitas Muhammadiyah Malang
ISSN : -     EISSN : -     DOI : -
Core Subject : Education,
Education
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Articles 10 Documents
 1 
Search results for , issue "Vol. 5 No. 2 (2010): Maret" : 10 Documents clear
Daftar Isi GAMMA Volume 5 Nomor 2, Maret 2010 Daftar Isi
Jurnal Gamma Vol. 5 No. 2 (2010): Maret
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Volume 5 Nomor 2, Maret 2010ISSN : 0216 - 9037Pengembangan Persamaan Perpindahan Panas Aliran Udara Dalam AirAchmad FauzanCatalityc Converter Jenis Lubang Horizontal untuk Mengurangi Emisi Kendaraan BermotorAli MokhtarVariasi Jumlah Tumbukan Pada Campuran Beton Aspal Terhadap Nilai Density Dan Void InThe Mix ( VITM )Andi Saiful AmalGenerator Listrik 100 Watt Putaran Rendah Untuk Pembangkit Listrik TenagaAir dan AnginMikro : Desain, Perencanaan Dan PembuatanDiding SuhardiPenerapan Teknologi Powder Metalurgy Untuk Pembuatan Komponen Mesin Berbasis PasirBesi LokalMurjitoOptimalisasi Penangkapan Gas Hasil Pembuangan Sampah Organik sebagai Sumber BahanBakat AlternativeNur SubekiPotensi Lumpur Lapindo Sebagai Bahan Baku Tambahan Pembuatan Batu BataRofikatul KarimahModel Tree dengan Sistem Persamaan Non Linier untuk Peramalan (forecasting)Aliran SungaiSetahun KedepanSuliantoDesain Sanitary Landfill pada Topografi Extrem di Desa Donowarih Kecamatan KarangplosoKabupaten MalangZamzami Septiropa
PENGEMBANGAN PERSAMAAN PERPINDAHAN PANAS ALIRAN UDARA DALAM AIR Achmad Fauzan
Jurnal Gamma Vol. 5 No. 2 (2010): Maret
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For the calculation of direct contact heat exchanger between water and air bubble, it needformula of heat transfer. This research is dedicated for it. Attempt installation basically is a columnof water highly 1m which intemperature. Control. Air bubbles are discharged In this column. Byassuming those bubbles as ball with certain diameter the experiment was done. The result a Formulaof heat transfer coefficient with set of constant
CATALITYC CONVERTER JENIS LUBANG HORIZONTAL UNTUK MENGURANGI EMISI KENDARAAN BERMOTOR Ali Mokhtar
Jurnal Gamma Vol. 5 No. 2 (2010): Maret
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Degradation of gas emission rate throw away is influenced by channel form and streamdistribution in channel of catalytic converter. From recommended model in the research of firstyear, that is model 1 and model 4 showing result of good spreading. From result of data analysiswith recommended model in research of first year indicate that the degradation of biggest emissionon the 4 model, especially for the rate of emission of HC equal to 21,4% and rate of CO equal to24,6%, while for model 1 as a whole still under model 4.
VARIASI JUMLAH TUMBUKAN PADA CAMPURAN BETON ASPALTERHADAP NILAI DENSITY DAN VOID IN THE MIX ( VITM ) Andi Syaiful Amal
Jurnal Gamma Vol. 5 No. 2 (2010): Maret
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TAsphalt concrete mix is one type of flexible pavement layer. Asphalt concrete mixture consistsessentially of coarse aggregate, fine aggregate, filler and binder. Aggregate used may be natural orthe result of processing and can also be the artificial aggregate. While grading for asphalt concretemix is Continuously graded. This study aimed to assess the absolute density, ie density of a pavementlayer maximum value. Absolute density is needed in order to predict the quality of road pavementlayers in accordance with the variation of the number of collisions 2x75, 2x150, 2x200, 2x300 and2x400 blows. Then studied the effect of variations in the collision of the Marshall test parameters,which include density, stability, voids of mineral aggregate (VMA), voids filled with asphalt (VFWA),voids in the mix (VITM), flow and marshall qoutient. The results showed a variation of the effect ofcollisions on the value of VITM. specially for heavy traffic comparison of values obtained onvariation of the collision VITM 2x150, 2x200, 2x300 and 2x400 to VITM standard is between 50-60% (collision 2x75). These results indicate that all kinds of variations of the collision above thestandard collision will result in fatigue of materials, pavement materials become damaged as aresult. From the results of this study also obtained the optimum asphalt content for heavy traffic,moderate and mild, respectively, are 6.44%, 6.59% and 6.86%. From the results of this study alsoobtained a density value of the field whose value is based on the optimum asphalt content in successionto heavy traffic, medium and light, which is 2.35 g / cc, 2.35 g / cc and 2.36 gr/cc
GENERATOR LISTRIK 100 WATT PUTARAN RENDAH UNTUK PEMBANGKIT LISTRIK TENAGAAIR DAN ANGIN MIKRO : DISAIN, PERENCANAAN DAN PEMBUATAN Diding Suhardi
Jurnal Gamma Vol. 5 No. 2 (2010): Maret
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The more and more expensive oils from fosil to end in price electric energy more expensivebecause almost all electric station still use fosil fuel, imposible to happenes because stock of fosilfuel more and more small and no renewable again. Energy source drawer for to multiply is electricenergy from nature renewable energy exercise sun energy, win energy and water energy, and moresmall scala, and obstacle stock small generator for water energy and win energy with small scalawith low turn not to be available.In research make to design, planning and making small generator 100 watts with low turning300 rpm, for produce electric power 2,4 kWh/ unit/ day.
PENERAPAN TEKNOLOGI POWDER METALURGY UNTUK PEMBUATAN KOMPONEN MESIN BERBASIS PASIR BESI LOKAL Murjito .
Jurnal Gamma Vol. 5 No. 2 (2010): Maret
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Metalurgi powder is a commercial workpiece forming process of metal where the metal wasdestroyed first in the form of flour, then flour is pressed in the mold (mold) and heated below themelting temperature of the workpiece to form dust. So that the metal particles fuse because themechanism of mass transport due to diffusion of atoms between the particle surface. Powdermetallurgy method provides a rigorous control on the composition and use of mixtures that can notbe fabricated by other processesIn this study the process of soft magnetic iron production by mechanical alloying powderprocess-based yan metalurgy local iron sand. Base backdrop that the use of local sand from the datawe can from the foundry industry raw materials and large penunjangsebagian still imported. Materialsthat are 100% pengadaanya still relies imported materials are iron ore and alloys (Alloy).Iron filings and sand powder 100 mesh size locally has mixed for 20 minutes. The amount ofpowder added is 25%, 50%, and 75% by weight. Powder which had sifted and mixed and theninserted into molds (dies) that has been coated by the lubricant of zinc stearate on the walls of themold then dikompaksi both single-action pressing with a pressure of 2000 psi in order to obtain asample form of tablets. Sintering temperature of 1000 0C for 30, 60, and 90 minutes later performeddapur.Pengamatan cooling micro structure used optical microscopy and Vickers hardness testsperformed.The results of this study is the optimal value of remanent induction at 25% by weight of sandsintered 90 minutes by 9.4 Gauss and an optimal value of Vickers hardness at 75% by weight ofsand sintered 90 minutes at 501 HV.
OPTIMALISASI PENANGKAPAN GAS HASILPEMBUANGAN SAMPAH ORGANIK SEBAGAI SUMBER BAHAN BAKAT ALTERNATIF Nur Subeki
Jurnal Gamma Vol. 5 No. 2 (2010): Maret
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The research objective is to design a tool catcher gas methane (CH4) and Carbon dioxide gasCO2 in the landfill, as a source of fuel gas.Optimization is a continuation of the initial design of the landfill methane gas capture SupitUrang Malang by Dhieta and Subeki (2007). The optimization of the capture of landfill gas activityis structured as follows: melaukan drilling location landfill Supit Urang with age didasrkan lanfill,installing pipe landfill gas catcher, caught with a plastic measuring, taking samples with timedifferences, measurement and data analysis followed by a discussion.Results obtained from this study include: Age garbage largely determines the capacity of thegas produced is located in cell 4, the other side of the retrieval time also affects the capacity of thecatch during the day.Key words: Optimization,
POTENSI LUMPUR LAPINDO SEBAGAI BAHAN BAKU TAMBAHAN PEMBUATAN BATU BATA Rofikatul Karimah
Jurnal Gamma Vol. 5 No. 2 (2010): Maret
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The case of the devastating flood of hot mud from gas drilling PT. LAPINDO Brantas inPorong Siring village of Sidoarjo regency of East Java on 29 May 2006 caused tremendous lossimpact. Puddle and a large volume of mudflow an issue as well must be immediately sought a wayto use it. Business of mud matching is the manufacture of building materials, especially materials ofred brick. It is based on UMM Lumpur research Team (2006) that the Lapindo mud can be used asan ingredient brick-making raw because they contain clay. This study aims to gain prototype madeof mud bricks in accordance with the level / class of bricks.This study is an experiment, the experimental design "One Group Pretest-posttest Design ". Inthis study independent variables consisted of percentage mud in clay 0%, 10%, 15%, 20%, 25%,30%, 35%, 40% and the dependent variable compressive strength, water absorption and solid brickattached brick.Research results indicate brick class I achieved on the percentage of mud in clay 15% to 25%.While the percentage of sludge 0%, 10%, 30%, 35% will produce bricks class II and the percentageabove 35% would produce a level lower bricks of stone normal brick. Water absorption value ofless than 20% brick for brick made of mud above 20% thus require immersion in water beforeinstallation. While the percentage of 0%, 10%, 15%, water absorption value of less than 20% brick,the brick does not require installation submersion.
MODEL TREE DENGAN SISTEM PERSAMAAN NON LINIER UNTUK PERAMALAN (FORECASTING)ALIRAN SUNGAI SETAHUN KEDEPAN Sulianto .
Jurnal Gamma Vol. 5 No. 2 (2010): Maret
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Peramalan aliran setahun kedepan merupakan tahapan yang sangat penting dalam perencanaanpola operasi bangunan hidrolik terutama yang berfungsi untuk penyediaan air. Metode peramalankonvensional yang banyak diterapkan saat ini terbukti kurang memberikan hasil yang memuaskan.Model Tree Non Linier yang dikembangkan dalam penelitian ini terbukti secara kualitatif mampumempresentasikan perilaku aliran inflow Waduk Selorejo dan Waduk Lahor yang akan terjadi setahunkedepan.Model Tree Non Linier yang dapat memberikan hasil terbaik adalah sistem persamaan yangdibentuk dari seri data historik yang digeser bulanan, berarti aliran yang akan terjadi pada sebulankedepan (t+1) akan sangat dipengaruhi oleh nilai aliran pada bulan saat ini (t), bulan sebelumnya (t-1), 2 bulan sebelumnya (t-2) hingga 12 bulan sebelumnya (t-12). Dengan menggunakan p runningfactor sebesar 1, maka diperoleh sejumlah 13 persamaan untuk prediksi aliran inflow Waduk Lahordan 14 persamaan untuk prediksi aliran inflow Waduk Selorejo.Implementasi sistem persamaan yang dihasilkan cukup baik dalam mempresentasikan hubunganantara vektor input(seridatahistorik) dengan vektor output(dataprediksi). Hasil perbandingangrafis secara visual menunjukkan bahwa output dari model dapat mengenali pola aliran yang terjadi.Pada pengujian terhadap data trainning diperoleh nilai RMSE sebesar 0,1792 m3/detik untuk datadariWaduk Lahor , dan sebesar 0,0723 m3/detik untuk data Waduk Selorejo. Pada pengujian terhadapdata testing diperoleh nilai RMSE sebesar 2,19 m3/detik untuk data dari Waduk Lahor dan sebesar1,89 m3/detik untuk data Waduk Selorejo.
DESAIN SANITARY LANDFILL PADA TOPOGRAFI EXTREM DI DESA DONOWARIH KECAMATAN KARANGPLOSO KABUPATEN MALANG Zamzami Septiropa
Jurnal Gamma Vol. 5 No. 2 (2010): Maret
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Village Donowarih Karangploso District of Malang Regency is one of the areas that havetrouble and waste management in the central (dumped in landfills / TPA) where the existing landfillis very far from the village Donowarih with a distance of approximately more dari15 miles by roadup kontour conditions down so it can be concluded is not likely to be transported to a landfill. Sothat the Village Donowarih require a landfill area (TPA) that is close and be able to serve the communityin the surrounding area.With topography at the foot of the mountain Arjuno the Landfill to be built so the potential topollute the environment, especially water and soil in areas that have a height below the surfaceDonowarih village, so it becomes very important that a comprehensive landfill design which focuseson health aspects of the environment.With reference to kaedah comprehensive planning Landfill is expected to have DonowarihVillage Landfill that meet environmental health standards are accompanied by a simple application ofwaste regulations for the village community Donowarih so it will get additional revenue through therecycling process that accumulates.

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