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Jurnal Gamma
Published by Universitas Muhammadiyah Malang
ISSN : -     EISSN : -     DOI : -
Core Subject : Education,
Education
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Articles 10 Documents
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Search results for , issue "Vol. 8 No. 1 (2012): September" : 10 Documents clear
Daftar ISI JURNAL GAMMA, ISSN: 2086-3071 Volume 8, Nomor 1, September 2012 Daftar Isi
Jurnal Gamma Vol. 8 No. 1 (2012): September
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JURNAL GAMMA, ISSN: 2086-3071 Volume 8, Nomor 1, September 2012 Catalityc Converter Jenis Katalis Pipa Tembaga Berlubang Untuk Mengurangi Emisi Kendaraan Bermotor Ali Mokhtar., Hal.125-131 Korelasi Antara Penambahan Aspal Minyak Pada Campuran Perkerasan Aspal Beton Hasil Daur Ulang Terhadap Karakteristik Marshall Alik Ansyori Alamsyah., Hal. 132-139 Desain dan Pembuatan Inkubator berdasarkan Distribusi Temperatur Budiono, Hal. 140-147 Analisis Efisiensi Termal Pada Ketel Uap Di Pabrik Gula Kebonagung Malang Heni Hendaryati, Hal. 148-153 Rancang Bangun Alat Kontrol Beban Elektronik Digital Pada Pembangkit Listrik Tenaga Mikrohidro (PLTMH) Off-Grid Machmud Effendy., Hal. 154-162 Rekayasa Proses Iron Soft Magnetic Melalui Mechanical Alloying Powder Metalurgy Berbasis Serbuk Besi Lokal Murjito, Hal. 163-170 Desain Interkoneksi Bioreaktor Sampah Padat Perkotaan Dengan Model Sirkulasi Air Lindi Anaerob Untuk Meningkatkan Produksi Gas Methane (Penelitian Tahun Ke-2) Zamzami Septiropa, Hal. 171-176
Catalityc Converter Jenis Katalis Pipa Tembaga Berlubang Untuk Mengurangi Emisi Kendaraan Bermotor Ali Mokhtar
Jurnal Gamma Vol. 8 No. 1 (2012): September
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Catalityc Converter Jenis Katalis Pipa Tembaga Berlubang Untuk Mengurangi Emisi Kendaraan Bermotor Ali MokhtarStaf Pengajar Jurusan Teknik Mesin, Fakultas TeknikUniversitas Muhammadiyah MalangEmail : alimokhtar011@gmail.com, balimokhtar06@yahoo.co.idABSTRACTDecreased levels of exhaust emissions are influenced by the catalyst material and shape of the catalyst, the catalyst model of perforated pipes showed oxidation and reduction process goes well, it is shown that the levels of CO2 decreased by 49.7338%, while CO emissions fell by 36.904% and the emissions HC decreased by 28.354%. In general installation catalityc hollow pipe catalytic converter type can reduce exhaust emissions compared with using ctalityc converter.Key Word : copper pipe perforated catalyst
Korelasi Antara Penambahan Aspal Minyak Pada Campuran Perkerasan Aspal Beton Hasil Daur Ulang Terhadap Karakteristik Marshall Alik Ansyori Alamsyah
Jurnal Gamma Vol. 8 No. 1 (2012): September
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Korelasi Antara Penambahan Aspal Minyak Pada Campuran Perkerasan Aspal Beton Hasil Daur Ulang Terhadap Karakteristik MarshallAlik Ansyori AlamsyahStaf Pengajar Jurusan Teknik Sipil, Fakultas TeknikUniversitas Muhammadiyah MalangEmail: alik.syah@yahoo.comABSTRACTImproved road by adding extra layers of constant thickness will result in increasingly thick layers of pavement and materials needed thining. Treatment with pavement recycling technologies (recycling) is an alternative to overcome this problem because it has several advantages such as to restore power and maintain the geometric road pavement and overcome dependence on new material. Recycling processed and supported by adequate equipment will produce a mixture that can offset the value structure of the mixture. The addition of new materials and or additional materials in the former material scratching the old pavement is one alternative to increase the carrying capacity of ex-scratching material.Research conducted at the Laboratory of Highway Muhammadiyah University of Malang. The quality of asphalt concrete recycled with the addition of new asphalt can be known through the Marshall test results (stability, flow plastically, the results for the marshall, and the cavity in the mix). The binder used was 60/70 penetration bitumen with each variation with the addition of 0.5%, 1%, 1.5%, 2%, and 2.5%. From the result showed that the addition of new asphalt on a mixture of recycled asphalt to improve the power tie. Optimum asphalt content based on the value of stability, flow, and Marshall Quotient amounted to 7.25% of the total weight of the mixture, then there was an increase of 0.45% asphalt needs of optimum asphalt content of 6.8%.Keywords : Marshall stability, recycling, asphalt.
Desain dan Pembuatan Inkubator berdasarkan Distribusi Temperatur Budiono .
Jurnal Gamma Vol. 8 No. 1 (2012): September
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Desain dan Pembuatan Inkubator berdasarkan Distribusi TemperaturBudionoStaf Pengajar Jurusan Teknik Mesin, Fakultas TeknikUniversitas Muhammadiyah Malang Email : budiono_ssi_mt_umm@yahoo.comABSTRACTWhen a new born babies (especially premature babies) have not been able to adjust to the temperature outside. One of the standard post-neonatal procedures are all newborns should be incorporated into the incubator, the time it takes depends on the level of health, durability and infant organ system itself. In this case the infant incubator is one tool that can help the newborn to adapt with the outside world, because the conditions in the womb to the outside world is very different, especially at a temperature problem. So with regular heating system so the baby can adapt to the transition period.Therefore, newborns should be helped to adjust to the new environment by putting them into the incubator. Infant incubator temperature is slowly lowered so that it can make the baby feel comfortable. In order for your baby comfortable at room temperature, then the distribution must evenly in incubator. To determine the pattern of temperature distribution in the incubator at my research will provide solutions to design and create an incubator temperature distribution based on the simulation results based on numerical approach with Matlab programKeywords: incubator, distribution, matlab
ANALISIS EFISIENSI TERMAL PADA KETEL UAP DI PABRIK GULA KEBONAGUNG MALANG Heni Hendaryati
Jurnal Gamma Vol. 8 No. 1 (2012): September
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ANALISIS EFISIENSI TERMAL PADA KETEL UAP DI PABRIK GULA KEBONAGUNG MALANGHeni HendaryatiStaf Pengajar Jurusan Teknik Mesin, Fakultas TeknikUniversitas Muhammadiyah MalangEmail : henihendaryati@yahoo.comABSTRACTAmid strong currents of globalization and the energy crisis such as rising fuel prices that hit the world’s sugar industry claimed to be more competitive to face increasingly fierce competition. Under these conditions, suppress the dissipation of energy and attention on energy conservation becomes an important thing to do. Source of energy for the process of sugar production in sugar mills Kebon Agung Malang generated from the boiler in the form of steam. The plant operates using 2 pieces of boiler, Boiler Yoshimine H-2700 with a capacity of 80 tons / hour and Boiler Yoshimine H-3500 with a capacity of 100 tons / hour. This study aims to determine the efficiency of boilers used and assess energy conservation in the boiler. During this study, the boiler is in operation with fuel bagasse (bagasse). Data is collected by recording directly from the control panel. Data is taken every hour for 24 hours a day, the study was conducted for 30 days. Research shows the average thermal efficiency by the heat balance method for the Boiler Yoshimine H-2700 was 74.8% and Boiler Yoshimine H-3500 was 73.9%. Sankey Diagrams Based on the amount of heat entering the steam boiler for the second kettle is 1713.194 kcal / kg. Heat lost to Boiler Yoshimine H-2700 is 425.915 kcal / kg, so the heat is used is 1287.279 kcal / kg. While the heat lost to Boiler Yoshimine H-3500 is 445.653 kcal / kg, so the heat is used is 1267.541 kcal / kg.Key note : Boiler, heat balance, efficiency
RANCANG BANGUN ALAT KONTROL BEBAN ELEKTRONIK DIGITAL PADA PEMBANGKIT LISTRIK TENAGA MIKROHIDRO (PLTMh) OFF-GRID Machmud Effendy
Jurnal Gamma Vol. 8 No. 1 (2012): September
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RANCANG BANGUN ALAT KONTROL BEBAN ELEKTRONIK DIGITAL PADA PEMBANGKIT LISTRIK TENAGA MIKROHIDRO (PLTMh) OFF-GRIDMachmud EffendyStaf Pengajar Jurusan Teknik Elektro, Fakultas Teknik Universitas Muhammadiyah MalangEmail: machmudeffendy@yahoo.comABSTRACTElectronic load control device (ELC) at the MHP Digital Off-Grid (not connected to the PLN) replaces previous controls are still using analog systems (Machmud, 2008), because analog systems have drawbacks including: difficult to perform the initial setup of the generator voltage stability in the event of changes in consumer loads, so that the percentage error generator voltage and frequency stability is still quite large. In 2010 (Machmud) makes ELC models using Matlab with the PI system that is able to stabilize the voltage of the generator at the second to 8.These results continue the previous research by designing wake ELC using microcontroller system that is equipped with PID control. Series of ELC supporters were also made, among others: the sensor circuit voltage, zero detection circuit, and electronic switch circuit. Voltage sensor circuit that has been made to have the voltage linearity level of 0.997. While the time required to trigger the triac with a maximum of 1000 Ohm load is between 0 to 10 milliseconds.PID system is created using the C language and loaded into the microcontroller IC is able to stabilize the voltage generator in the event of changes in the electrical load. With menggunakann value Kp = 4, Ki = 0:01, the system is able to stabilize the voltage of the generator in the event of changes in the electrical load 100 and 500 Ohm 0hm in seconds to 8 parameters Kp in PID control system is applied to the electronic load control devices MHP does not cause changes significant at keluran controller, so its value can be ignored.keyword: PLTMh, Digital Control
REKAYASA PROSES IRON SOFT MAGNETIC MELALUI MECHANICAL ALLOYING POWDER METALURGY BERBASIS SERBUK BESI LOKAL Murjito .
Jurnal Gamma Vol. 8 No. 1 (2012): September
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REKAYASA PROSES IRON SOFT MAGNETIC MELALUI MECHANICAL ALLOYING POWDER METALURGY BERBASIS SERBUK BESI LOKALMurjitoStaf Pengajar Jurusan Teknik Mesin, Fakultas Teknik Universitas Muhammadiyah Malang Email: moerjit@gmail.com, murjito@umm.ac.idABSTRACTSoft magnetic materials is a phenomenon that is interesting and unique, this uniqueness needs to be studied more deeply. Soft magnetic material (magnetic ferro) has been known since hundreds of years ago, but until now this process is still the process of making traditional process that is commonly used casting process. Casting process is still much to experience weaknesses and limitations, namely, melting energy is so high that no efficient, long process, the results can not be maximal, low dimensional accuracy, there is still further processes, and limited to certain elements, so that when it wants to make magnetic alloy of various elements or particles are still difficulties.To seek alternative production process of soft magnetic materials it is necessary to a solution or process engineering, on this occasion the researchers manipulate the process of soft magnetic material is iron with powder metalurgy mechanical alloying, in order to obtain the good soft magnetic iron and has high accuracy.In this study, researchers make the engineering process of soft magnetic iron production by mechanical alloying process based yan powder metalurgy local iron sands. Basis that the use of local sand backdrop of the results of the data that we can from raw materials and foundry industries penunjangsebagian materials are still imported. The ingredients are 100% pengadaanya still relies imported iron ore and materials are alloys (Alloy).The purpose of the study is the reverse process of soft magnetic iron by mechanical alloying of powder metalurgy process so that we will know the characteristics thermadinamika properties and mechanical properties of materials at various particle sizes up to the size of the micro / nano powder.Key word : soft magnetic materials, process engineering, mechanical alloying powder metalurgy
Desain Interkoneksi Bioreaktor Sampah Padat Perkotaan Dengan Model Sirkulasi Air Lindi Anaerob Untuk Meningkatkan Produksi Gas Methane Zamzami Septiropa
Jurnal Gamma Vol. 8 No. 1 (2012): September
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Desain Interkoneksi Bioreaktor Sampah Padat Perkotaan Dengan Model Sirkulasi Air Lindi Anaerob Untuk Meningkatkan Produksi Gas MethaneZamzami SeptiropaStaf Pengajar Jurusan Teknik Sipil , Fakultas TeknikUniversitas Muhammadiyah Malang,e-mail : zamseptiropa@umm.ac.idABSTRACTThe existence of gravity of the pressing weight of its own garbage heap of garbage will be squeezed to make trash (pressing) and out of the leachate (Leachate). Contained in the waste leachate has elements glokosa (C6H12O6), Amino Acid and Ammonia (NH3), which will help the growth of anaerobic bacteria that produce methane (CH4) and carbon diaoksida (CO2). Humidity will be reduced as the discharge of garbage in garbage leachate resulting decline in productivity of anaerobic bacteria, thus maintaining levels of humidity (moisture content) is very important in stabilizing the productivity of anaerobic bacteria.In the humidity of 59.85% productivity waste anaerobic bacteria produce landfill gas in stagnant in the range of less than 10% CH4. With a circulation process of garbage leachate to maintain moisture of 67.25% are able to stabilize the production of landfill gases, especially CH4 concentration more than 25%. Leachate circulation periodically able to stabilize the moisture content of waste, from which the waste water content, it makes the productivity of stable anaerobic bacteria produce methane gas in concentrations between 20% -25% is quite a power plant of energy.Renewable energy was from waste to be more realistic to be implemented in full scale in place of final processing (TPA) / Landfill. So the need for energy for the benefit of the power plant could help meet the electricity needs of the community.Keywords: bioreactor anaerobic, leachate circulation
Cover Jurnal Gamma, Vol. 8, No.1, September 2012 Cover .
Jurnal Gamma Vol. 8 No. 1 (2012): September
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Cover Jurnal Gamma, Vol. 8, No.1, September 2012
Redaksi dan Pedoman Penulisan Jurnal Gamma, Vol 8, No. 1, September 2012 Redaksi & Pedoman Penulisan
Jurnal Gamma Vol. 8 No. 1 (2012): September
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Redaksi dan Pedoman Penulisan Jurnal Gamma, Vol 8, No. 1, September 2012

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