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INDONESIA
Jurnal Ilmiah Teknik Mesin
Published by Universitas Lampung
ISSN : -     EISSN : -     DOI : -
Core Subject : Engineering,
Mechanical Engineering
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Articles 11 Documents
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Search results for , issue "Vol. 1 No. 2 (2013)" : 11 Documents clear
Cover Jurnal FEMA Vol.1 No.2 April Tahun 2013 Halaman Sampul, Cover
Jurnal Ilmiah Teknik Mesin FEMA Vol. 1 No. 2 (2013)
Publisher : FT UNILA

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Jurnal FEMA Jurusan Teknik Mesin Universitas Lampung Edisi Vol 1 No.2 Tahun 2013 diterbitkan pada 10 April 2013, dengan 10 Penulis Jurnal.
Pengaruh Variasi Temperatur dan Derajat Keasaman (pH) Air Pencucian Pada Aktivasi Zeolit Pelet Terhadap Prestasi Mesin Diesel 4-Langkah Pandapotan, Chandra Winata; Wardono, Herry
Jurnal Ilmiah Teknik Mesin FEMA Vol. 1 No. 2 (2013)
Publisher : FT UNILA

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One of efforts to save fuel consumption can be done by using thermal-acid activated zeolite as adsorbent for water vapor and nitrogen. Herry Wardono has proved that the value of concentration of 0.3 N and 0.5 N in the chemical activation can save specific fuel consumption. The best result occurred in the use of thermal-chemical activated zeolite. In this research, thermal activation temperatures used were 150 0C and 200 0C respectively for 1 hour. Variations of washing water pH were also performed on the 4.5, 5.5 and 7. The results showed this thermal activation of 200 0C on activator HSO24 0.3 N and HCl 0.3 N can save fuel by 5.350% and 7.811% respectively. Then the pH value of 7 gave the best fuel consumption savings those were of 5.964 % and 7.175% for use of HSO 0.5N24 and HCl 0.5N. This result occured at low speed (1500 rpm).Keywords : adhesive pelletize zeolite, thermal activation, effect of washing water pH
PERENCANAAN PENYEDIAAN ENERGI DI WILAYAH LAMPUNG MENGGUNAKAN PERANGKAT LUNAK LONG-RANGE ENERGY ALTERNATIVES PLANING SYSTEM (LEAP) Waluyo, Budi; Burhanuddin, Harmen; Martinus, .
Jurnal Ilmiah Teknik Mesin FEMA Vol. 1 No. 2 (2013)
Publisher : FT UNILA

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Lampung province is a region with a strategic location as a gateway entrance and exit of the economy from the island of Java to Andalas or vice versa. Beside of that the potential of vast natural resources enough to serve as the foundation and development capital, including potential energy resources. Energy needs from year to year increased significantly. if fixed transport link between the islands of Java and Sumatra realized as expected energy demand will jump dramatically. Currently, most of the energy supply in Lampung are supplied from other areas such as Java, and other provinces in Sumatra. Therefore, it is necessary to forecast energy supply for several years to get the proper planning of energy supply to meet the energy needs at times to come. In this research study about projected energy supply in the region of Lampung using software LEAP (Long-range Energy Alternative Planning system) version 2008. The study is based on projections of existing energy needs and based on data from existing energy potential in the province of Lampung, such as coal, geothermal, biogas cow dung and buffalo, palm oil biodiesel and bioethanol sugar cane, sweet potatoes and cassava. The results showed that the supply of electricity from 2014 to 2030 was in excess of the electrical energy needs in the area of Lampung because of the operation of geothermal power plants. For biogas sector, projected at the beginning of the year to replace the LPG gas by 12% and at the end of the projection to 8% due to growth in cattle farm and buffalo are very small. For biodiesel sector, provision was 64% at the beginning of the projection, but declined at the end of the projection to 30% due to the growth of oil palm area is very low. In bioethanol sector, from the beginning to the end of the projection is only able to help reduce gasoline consumption by 4%, due to bioethanol are just a mixture so they are less significant. It can be concluded that the new renewable energy which featured in Lampung province are geothermal energy, biogas manure and corn cob gasification.Keywords: energy projection, LEAP model, transformation of energy, renewable energy.
Pembuatan Sistem Otomasi Dispenser Menggunakan Mikrokontroler Arduino Mega 2560 Oktariawan, Imran; Martinus, .; Sugiyanto, .
Jurnal Ilmiah Teknik Mesin FEMA Vol. 1 No. 2 (2013)
Publisher : FT UNILA

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Developments in science and technology in this era is an important factor and can not be separated in an attempt to improve the welfare of the community. This is proved by its increasement of peoples demand for tools that can work automatically, efficiently and saving energy. One of automation technologies that can be applied in home appliances is a dispenser that uses automation.Dispenser which used in this study using a microcontroller Ardunio Mega 2560, because the microcontroller can reduce the complexity of electronic circuits and instrumentation. The microcontroller pin is used as an input and 10 PIN 2 PIN as output. Meanwhile, in the manufacturing process of hardware includes five series are: power supply circuit, sensor circuit height glass, circuit microcontroller arduino mega 2560, Soil moisture sensor connection, relay driver circuit. While data that obtained are the water level, the presence sensor cups, and level glass.Automation system Arduino Mega 2560 microcontroller running well as the dispenser system mechanism. Resulting in a dispenser that can provide comfort for people, particularly in meeting the needs of drinking.Keywords : microcontrollers, Arduino Mega, Soil moisture sensor, Driver delay
Aplikasi Rencana Pemotongan Plat Menggunakan Sistem Pakar Muhriyana, Ryan; Burhanuddin, Yanuar; Panuju, Achmad Yahya T
Jurnal Ilmiah Teknik Mesin FEMA Vol. 1 No. 2 (2013)
Publisher : FT UNILA

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In each plate cutting, design is paramount in the cutting plan. Cutting plan was made to minimize costs, wages designers, reducing the lead time required to order and improve the accuracy of estimated production costs. To help address the difficulties in cutting plate, it needs to be an expert system application expertise, bringing together designers each cut plate. The system created is an expert system for plate cutting plan is done by designing a program with the cutting plate in accordance with the wishes of the user using Visual Basic programming language 6.0. Where in the making users create data base using microsoft acces then applied into Visual Basic 6.0. Although this application is simply to cut the plate arrives squares and rectangles only, but with this program engineer can determine the total and the rest of the plate to be cut before the plate was cut.Keywords: expert system, cutting plate, rest of plate cutting
Rancang Bangun Aplikasi Thermovision Untuk Pemetaan Distribusi Suhu Dan Permulaan Penyalaan Magnesium Pada Pembubutan Kecepatan Tinggi Mahrudi, Haris; Burhanuddin, Yanuar
Jurnal Ilmiah Teknik Mesin FEMA Vol. 1 No. 2 (2013)
Publisher : FT UNILA

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Objective of this research is making thermovision application for heat mapping. The research is carried out with machining magnesium which chisel holder is designed with a thermocouple on the tip of it. The thermocouple is used as parameter to the maximum and also minimum temperature of the application. The machining process is done at the same time when the video is recorded. After the filming process, the video will be converted into several images (.Jpg format). The images will then be processed by using the thermovision application. After the images are loaded in the application, the distribution of temperature can be seen based on several areas of colors. The result of some image reading by using the thermovision application shows that temperature distribution happens through colors and it also shows the number of temperature in Celsius degree calculation. As seen in the image capturing of object with a range of temperature for about 100°C-150°C, a maximum temperature that can be obtained is 145.662°C and the minimum temperature is 120.973°C. This range of temperature is not too far from the maximum and minimum temperature of the thermocouple.Keywords: magnesium material, distribution of temperature, thermovision application.
POTENSI PRODUKSI MINYAK ATSIRI DARI LIMBAH KULIT KAYU MANIS PASCA PANEN Susanti, Neni; Gandidi, Indra Mamad; Susila ES, M.Dyan
Jurnal Ilmiah Teknik Mesin FEMA Vol. 1 No. 2 (2013)
Publisher : FT UNILA

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Kayu manis (Cinnamomum burmanii BL) is known and cultivated for its aromatic content. In the previous experiment the powder of kayu manis leather can be extracted to be atsiri oil. And the rubbish like; leaf, scrap, the powder from cutting tree, trank are the parts of wood leather that haven’t been used yet, so it will be appear as a problem for the environment. If the rubbish are extacted by steam and water destilation it will produce atsiri oil with good quality and good cost, as a mix ingredient of medicine beverages, food, and parfume. The experiment goal is to filter by using arrange destilation tool to get output the process is an optimal rendeman atsiri oil. An the extract metode used is steam and water destilation. To get a good filter output should be treated by parameter variety suitable with test tool performance they are; pressure variety (1 atm; 1,65 atm; 1.85 atm), temperatur (99oC; 114oC; 119oC) and resident time (1 hour; 2 hour; 3hour). The result of the testing is an output of the most atsiri oil, it is at pressure 1,85atm, the ingredient weigh is 750 gram, and the resident time 3 hour. Where, the maximum percentage rendeman from the leaf, powder, and scrap until 1,63 %; 1,49%; and 1,42%. Atsiri oil has not reached optimum point, because the pressure has not been optimal and the capacity of the tank is limited. The percentage rendeman up to 1% can give chance for the rubbish of kayu manis to be processed become atsiri oil. So that, this research can be continue by project for study of home industry.Keywords : Destilation process, atsiri oil, kayu manis, the rubbish of kayu manis leather.
Perancangan, Pembuatan, dan Pengujian Pembangkit Listrik Energi Biomassa Putra, Rachmat Cahaya; Gandidi, Indra Mamad; Burhanuddin, Harmen
Jurnal Ilmiah Teknik Mesin FEMA Vol. 1 No. 2 (2013)
Publisher : FT UNILA

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This paper describe about designing and testing laboratory-scalebiomass energy power plant, toprovideelectricityin remote areasand islandswhich utilizerenewable energyin accordancewith thepresident decreeNo.5/2006. The power plantis built with gasificationreactorwhich designedbased onImbertdowndraftgasifier, integrated gas cleaned up system (IGCS) include cyclones, venturiscrubbersrectangulartype, and a new gas cleaner which called rotaryseparator. Experiments carried out withthe parametersof gasificationsystemsAFR0.48,0.5, 0.54,scrubbingwater flow 1.26, 2.62, 3.33l/min, rotaryseparator suction speed about 0.9,3.4,4.4 m/s. Each of parameters was interacted to producecleanproducer gas which free from tarandimpurities, as wellas ahigh calorificvalue as fuelgasgenerator. The result of experiment and literature review shows thatthecurrentgasificationAFR about 0.54still far enough from ideal rice husk gasification AFRabout 1.5. Eventhough, the remaining taris stillrelativelyhigh at3788.1mg/m3. AfterIGCSinstalled,the tarcan be significantly reducedto210.45mg/m3, with thescrubbingwater flow3.33l/min, and4.4 m/s suction speed of rotaryseparator. In addition, theelectric powergeneratedis stillbelow 100W,so installationshouldbe modifiedagain, especially in thesector ofair supply tothe reactor.Keywords : electricity crisis, biomass gasification, biomass energy power plant.
ANALISA PERILAKU MEKANIK KOMPOSITSERAT KAPUK RANDU MENGGUNAKANMATRIK POLYESTER Sarifudin, Syamsul Arif; Tarkono, .; Sugiyanto, .
Jurnal Ilmiah Teknik Mesin FEMA Vol. 1 No. 2 (2013)
Publisher : FT UNILA

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The background research is the development of science and technology in the field of materials engineering and the demands off indinga new breakthrough in the provision of high quality materials and environmentally friendly. Composite materials of natural fibers that are more light weight, malleable, corrosion resistance, low price andeasy to obtain. This study uses materials such aspolyesterresin, and a catalyst Randu Kapok fiber. Randomly arranged fibers incomposites with various volume fractions of 15%, 25%, 35%. Making way press mold, bending tests were conducted with a reference standard ASTM D790-02, tensile testing standard ASTM D-638. Testing through the process of tensile and bending tests to determine the mechanical properties of the composite. Greatest tension obtained in the composite with 35% volume fractionis equal to 3,8046 MPa while the largest bending strength of the composite obtained from volume fraction 15% at 84MPa. Void formed causing the load can be held by thematrixis reduced due tolack of homogenan specimens.Keywords: Composite, Kapok Fiber, Polyester, Mechanic strength, Tensile Test and dan BendingTest.
KAJIAN EKSPERIMENTAL GAS CLEANER YANG DIMODIFIKASI UNTUK MENGEKSTRAK TAR DALAM PRODUCER GAS Agustian, Candra Aditia; Gandidi, Indra Mamad; Burhanuddin, Harmen
Jurnal Ilmiah Teknik Mesin FEMA Vol. 1 No. 2 (2013)
Publisher : FT UNILA

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Producer gas from biomass gasification consists of tar from pyrolysis process which is notdegradation thermal well before out from the reactor. In fact tar is a serious problem that must beconsidered in the process of gasification, especially for an internal combustion engineapplication.Gas cleaning system is one the methods to reduce the tarproduced in gasificationprocess. The research purpose which is to design a purify device for the producer gas which isintegrated and also to know the influence of gas speed and water debit towards tar getting asmeasurement research of IGCS. The research does by using reactor with diameter dimension 0,8 mand 1,5 m high. The result of this research getting the gas speed for the cyclone about 2,4 m/s andflow of water in venturi scrubber 3,3 l/min, collected tar is 12 gram with 66,67 % cyclone efficiencyand 10 gram with 44,44 % venturi scrubber efficiency. Meanwhile, rotary separator gas speedabout 2,6 m/s, it is able to reduce 10 gram tar with 55,56 % efficiency. The result from combinetesting show that the tar left in producer gas is only 210 mg/m3 with 94,4 % efficiency.Keywords : Gasifikasi Biomassa, Gascleaning, IGCS, Tar

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