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Perancangan, Pembuatan, dan Pengujian Pembangkit Listrik Energi Biomassa Rachmat Cahaya Putra; Indra Mamad Gandidi; Harmen Burhanuddin
Jurnal Ilmiah Teknik Mesin Vol 1, No 2 (2013): Jurnal FEMA Vo.1 No.2 Tanggal 10 April 2013
Publisher : Jurnal Ilmiah Teknik Mesin

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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.

PERENCANAAN PENYEDIAAN ENERGI DI WILAYAH LAMPUNG MENGGUNAKAN PERANGKAT LUNAK LONG-RANGE ENERGY ALTERNATIVES PLANING SYSTEM (LEAP) Budi Waluyo; Harmen Burhanuddin; . Martinus
Jurnal Ilmiah Teknik Mesin Vol 1, No 2 (2013): Jurnal FEMA Vo.1 No.2 Tanggal 10 April 2013
Publisher : Jurnal Ilmiah Teknik Mesin

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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.

KAJIAN EKSPERIMENTAL GAS CLEANER YANG DIMODIFIKASI UNTUK MENGEKSTRAK TAR DALAM PRODUCER GAS Candra Aditia Agustian; Indra Mamad Gandidi; Harmen Burhanuddin
Jurnal Ilmiah Teknik Mesin Vol 1, No 2 (2013): Jurnal FEMA Vo.1 No.2 Tanggal 10 April 2013
Publisher : Jurnal Ilmiah Teknik Mesin

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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

PENGARUH PENAMBAHAN ZAT ADITIF ALAMI PADA BENSIN TERHADAP PRESTASI SEPEDA MOTOR 4-LANGKAH Wahyu Eko Saputra; Harmen Burhanuddin; M.Dyan Susila
Jurnal Ilmiah Teknik Mesin Vol 1, No 1 (2013)
Publisher : Jurnal Ilmiah Teknik Mesin

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The quality fuel affects combustion because the fuel quality will get better combustion. Therefore, it is necessary to improve the quality of the fuel to produce combustion. Such an increase in the octane rating of the fuel can result in increased good quality of the fuel. One method used is the addition of natural additives in the fuel. Tests were performed using a motorcycle test engine 100 cc 4-stroke is running test (road test and acceleration), and stationary testing. The test road test conducted by a distance of 10 km with an average speed of 50 km / h test aims to get the value of fuel consumption. Furthermore, using the acceleration test speed 0-80 km / h and 40-80 km / h which aims to get the fastest acceleration time. Then the stationary testing done on rotation 1.000 rpm and 3.000 rpm with a 5-minute aims to get the value of fuel consumption at rest. This test uses a natural variation in the dose of the gasoline additive used is 1:4, 1:6, 1:8, and 1:10. On testing fuel consumption with the distance 10 km can be seen that the concentration of 1:6 is the best concentration that can reduce fuel consumption by 23,31% (136 ml), compared with natural gasoline without additives (177,333 ml). Average time acceleration 0-80 km / h resulted in the concentration of the best natural additives 1:4 that is with an average acceleration of 10,847 seconds (20,69%). In testing acceleration 40-80 km / h obtained for the concentration of 1:8 with an average acceleration of 6,993 seconds (21,83%). Tests of stationary fuel consumption at 1,000 rpm for 5 minutes in to the best performance at a concentration of 1:8 that is 33,91% (12,667 ml) whereas at 3.000 rpm stationary best performance is obtained at a concentration of 1:10 30,71% (14,334 ml).Keywords : fuel, natural additives, engine performance.

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