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All Journal International Journal of Public Health Science (IJPHS) Jurnal Teknik Mesin Jurnal Penelitian dan Evaluasi Pendidikan AGRISAINS MEDIA KOMUNIKASI TEKNIK SIPIL JURNAL BISNIS STRATEGI JURNAL SAINS PEMASARAN INDONESIA Pena Jurnal Ilmu Pengetahuan Dan Teknologi Jurnal Ilmiah Desain dan Konstruksi Aceh International Journal of Science & Technology Jurnal Teknik Sipil Diponegoro Journal of Management Balaba Jurnal Statistika JWEM (Jurnal Wira Ekonomi Mikroskil) Prosiding Seminar Nasional Sains Dan Teknologi Fakultas Teknik Kreano Media Ilmu Keolahragaan Indonesia Jurnal Online Mahasiswa (JOM) Bidang Pertanian The Indonesian Journal of Gastroenterology, Hepatology, and Digestive Endoscopy Rekayasa Mesin Journal of Enviromental Engineering and Sustainable Technology Indonesian Journal of Human Nutrition Program Kreativitas Mahasiswa - Teknologi Jurnal Kesehatan Masyarakat (JKM) CENDEKIA UTAMA Jurnal Agritech Biomedika Jurnal Sistem Informasi dan Bisnis Cerdas Power Elektronik Manajemen dan Pemasaran Jasa Jendela Olahraga Journal of Sport Sciences and Fitness Jurnal Penelitian Pertanian Terapan Jurnal Sistem Kesehatan Jurnal Pertanian Terpadu Teras Jurnal Jurnal Dinamika Ekonomi & Bisnis Civil Engineering Dimension Jurnal Gizi dan Pangan Soedirman Jurnal Arsip Rekayasa Sipil dan Perencanaan Jurnal Eksplora Informatika Jurnal Pendidikan Guru Conference SENATIK STT Adisutjipto Yogyakarta Jurnal Akademika Baiturrahim Jambi Angkasa: Jurnal Ilmiah Bidang Teknologi Indonesian Journal of Medicine SCIENTIA JOURNAL Gorontalo Journal of Public Health Jurnal Folium Ultima Management : Jurnal Ilmu Manajemen Jurnal Entomologi Indonesia Jurnal Formil (Forum Ilmiah) Kesmas Respati Arthavidya Jurnal Ilmiah Ekonomi Jurnal LEX SPECIALIS JHeS (Journal of Health Studies) JHECDs: Journal of Health Epidemiology and Communicable Diseases International Journal for Educational and Vocational Studies Human Care Journal Jurnal Komunikasi Pendidikan Industrial Engineering Journal (IEJ) Contagion: Scientific Periodical Journal of Public Health and Coastal Health KURVATEK Jurnal Pengabdian Harapan Ibu (JPHI) Jurnal Kesmas (Kesehatan Masyarakat) Khatulistiwa Jurnal Daur Lingkungan
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Journal : Rekayasa Mesin

Ampas Penyulingan Nilam Sebagai Bahan Bakar Alternatif Pada Proses Produksi Minyak Nilam Sugiarto, Sugiarto; Sulistyo, Erwin
Rekayasa Mesin Vol 1, No 2 (2010)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

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Remaining organic waste product of nilam oil distillation is a potential biomass as a fuel substitute for firewood. Utilization of waste distillation during refining is considered not yet optimal. Whereas by utilizing distillation waste will be obtained by the double advantage is decreasing the cost of production like reduction of the cost of purchasing firewood, waking environment from illegal logging and encroachment uncontrolled firewood and maintaining forest conservation. This research was conducted by varying waste of nilam distillation mixed fuel with firewood with a variation of 0%, 25%, 50%, 75% and 100% waste compared to firewood. Distillation capacity of each process is 60 kg of raw materials that have been chopped dried nilam. Dependent variables are sought in the form of heating value, temperature data in space heating, steam temperature and volume of nilam oil is produced for each variation of fuel weight fraction of waste nilam. The result is a solid fuel heating value increases with increasing weight fraction of waste nilam compared to the firewood. Zones heating temperatures and steam temperature fluctuated or not stable for all variations of fuel weight fraction of waste nilam. Steam temperature below 100 ° C which indicates the water content in the steam is still high. Time required for each distillation process with a capacity of 60 kg is still relatively long time is 5 to 6 hours. Volume nilam oil products tend to increase with increasing weight fraction of fuel from the dregs of nilam. Keywords : Waste distillation of nilam, alternative fuel, nilam oil
Optimasi Parameter Pemotongan Mesin Bubut CNC Terhadap Kekasaran Permukaan dengan Geometri Pahat yang Dilengkapi Chip Breaker Wibolo, Achmad; Wahyudi, Slamet; Sugiarto, Sugiarto
Rekayasa Mesin Vol 2, No 1 (2011)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

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In machining operation, the quality of surface finish is an important requirement for many turned workpieces. Thus, the choice of optimized cutting parameters is very important for controlling the requied surface quality The focus of present experimental study is to optimize for cutting speed, feed rate, and radius chip breaker using two performance measures, metal removal rate and surface roughness. Response Surface Methodology (RSM). has been applied for developing models in the form of multiple regression equations correlating dependent parameters with cutting parameters and radius chip breaker, in a turning process. The central composite rotatable design was used to plan the experiment, and analysis of variance were employed to study the performance characteristics for three variable independent in turning operation. A second-order model which can describe the relation then to find combination between cutting parameters and radius chip breaker which resulting the maximum metal removal rate and minimum surface roughness. The experimental results reveal that the most significant cutting parameters for surface roughness is cutting speed, followed by feed rate and radius chip breaker. Based on the optimization results, recommended cutting speed, feed rate, and radius chip breaker is 35 m/mt, 0,2819 mm/rev, and 0,85 mm. By implementing this parameters, the surface roughness and metal removal rate is 2,18 μm and 6230,80 mm3/mt.Keywords : Surface Roughness, Metal removal rate, response surface methodology, turning
Pengaruh Kuat Arus dan Waktu Pengelasan pada Proses Las Titik (Spot Welding) Terhadap Kekuatan Tarik dan Mikrostuktur Hasil Las dari Baja Fasa Ganda (Feritte-Martensite) Agustriyana, Lisa; Suryawan, Yudi; Sugiarto, Sugiarto
Rekayasa Mesin Vol 2, No 3 (2011)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

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This research was conducted to investigate the appropiate spot welding variable to get the maximum tensile strength. The highest of tensile strength referred as good quality of weldment.The plate was made from low carbon steel with phase ferrite and martensite. The current of welding used 0.9 kA, 1.6 kA, dan 1.85 kA with welding time were 0.25, 0.5 , 0.75 and 1 second. Mechanical properties testing done involved tensile strength to know shear strength of weld joint. Microstructure test used optical microscope.The results show that spot welding with thecurrent of 1.85kA and welding time of 1 second has the highest tensile strength (about 237.04N/mm2). On the other hand, the lowest tensile strength (150 N/mm2) was produced by combination of 0.9 kA and 0.25 second welding time. It was caused by recrystallization phasedeformation on steel.Keywords: current, welding time, tensile strength, spot weld
Dampak Perubahan Temperatur Lingkungan Terhadap Temperatur Puncak Las Dan Laju Pendinginan Sambungan Dissimilar Metal Menggunakan Las Mlg Sugiarto, Sugiarto; Wahyudi, Ari; Masduki, Masduki
Rekayasa Mesin Vol 2, No 2 (2011)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

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The failure of dissimilar weld joint happen to train contructions because of unweld joint quality optimal.This research used MIG welding with CO2 gas shield. The welding current used was 110 Ampere with wire diameter 0.8mm, welding velocity 2 mm/s, gas rate of CO2 was 5L/mnt. Temperature measurement distance towards welding center was 5 mm and 10mm. The joint plate was low carbon steel ST37 and austenitic stainless steel SS 304 with thickness 4mm. In order to obtain the temperature, thermocouple was used complated with ADC and computer to display and graph. Enviroment temperature was variated with room temperature 100 ºC, 200 ºC and 250 ºC. The low peak temperature cause cooling rate post welding deacreased, which was shown trough the decreasing shape of cooling graph. The higher the enviroment temperature, the lower welding peak temperature. It happen to both ST37 and SUS 304. The peak temperature and cooling rate post welding of SUS 304 was lower than ST37. The distribution of peak temperature similar the incrase of enviroment temperature. The most similar and lowest peak distribution of enviroment temperature was obtained 250ºC. Keywords: Thermal cycles, cooling rate, dissimilar metal, MIG welding, enviroment temperature.
Pengaruh Besar Arus Listrik pada Proses Wire Edm Terhadap Profile Error Involute Roda Gigi Lurus Gapsari, Femiana; Sugiarto, Sugiarto; Bagus, Nugroho
Rekayasa Mesin Vol 2, No 3 (2011)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

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Abstract

Wire Electric Discharge Mechine (EDM) is one of non conventional metal cutter machines. This machine is used to form machine components which has complex form and needs high precision. One of the machinery parameters which influences cutting precision on Wire EDM is the amount of pulse current. The form of involute profile of gear is a form which has complexity and high precision which often changes the form of geometry profile. This studyis aimed at investigating the extent of the influence of the amount of current parameter on Wire EDM towards the profile error involute spur gear. Thi study is experimental design, the independent variable used is pulse current with variation of 3 ampere, 4 ampere, 5 ampere, 6 ampere, and 7 ampere. The dependent variable in this study is profile error involute spur gearwhich later will explain the extent of cutting distortion. The result of this study showed that the higher the electric current, the higher the level of profile error involute spur gear. This means that the level of the precision is getting lower. The level of the lowest profile error involute, which is 0.0907 mm, found at 3 ampere pulse current, while the highest level of profile error involute, which is 0.1256 mm, found at 7 ampere electric current.Keywords: wire edm, pulse current, profile error involute, spur gear.
Karakterisasi Kekuatan Bending dan Hidrofobisitas Komposit Serat Kulit Waru (Hibiscus tiliaceus) Kontinyu Bermatrik Pati Ubi Kayu Rianto, Ari; Soeparman, Sudjito; Sugiarto, Sugiarto
Rekayasa Mesin Vol 2, No 2 (2011)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

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Abstract

The development of biopolymer becomes alternative solution of the waste problem which is mostly produced by synthetic polymer. Biopolymer cassava extract which has big potency to be developed as synthetic polymer alternative. Nevertheless, the basic characteristic which is hydrofilyc and low tensile strength makes the polymer film produced not acceptable to be used as synthetic polymer alternative. The method used in this research was continous fiber biocomposite by pressed hand lay up. The matrix was Wau wood fiber which had layer variety 1,2,3,4 and the fiber directions 0o and 90o. The matrix biocomposite uses cassava extract with addition variation of gliserol 5%,10%,15% of dry weight. The experiment testing used bending test standart ASTM C 393 (1997) and moisture test standart ASTM D570-81. From this research, it was found that the highest bending result on fiber variation 3 layers and 5 % matrix gliserol was 50,58 Mpa. The highest elongation on 15% gliserol+1 layer was 35%. The lowest moisture test occurred on 1% laye and 5% matrix was 39.3%. Keywords: Biocomposite, bending, biopolymer, Waru wood fiber , gliserol.
Purifikasi Biogas Sistem Kontinyu Menggunakan Zeolit Sugiarto, Sugiarto; Oerbandono, Tjuk; Widhiyanuriyawan, Denny; Permana Putra, Faruq Syah
Rekayasa Mesin Vol 4, No 1 (2013)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

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The continued development of the technology industry and the rapid depletion of petroleum energy the need for alternative sources of renewable energy to be a very important consideration. Biogas is a renewable energy that has great potential as an alternative energy. The content consists of CH4 biogas as fuel around 50-80% and CO2 as an impurity around 27-45%. With the CO2 gas can affect the purity of CH4 in biogas womb. Therefore, to get the maximum quality of biogas purification necessary. The research was done by making purification equipment (purifier) with zeolite granular solid filler mounted on a biogas digester system continue. Purification processes varying on zeolite layer that fills the purifier is 1, 2, 3, 4, and 5 layer. All walks take a purification process for 60 minutes and observed every 15 minutes. The results showed that the increasing time between biogas purification with zeolite, the CO2 levels tend to decline with the lowest percentage of 21.3% and CH4 levels increase with the highest percentage of 74.7%. This is due to the increasing time of purification, CO2 absorbed in the zeolite structure more and more. So with the absorption of CO2 by the zeolite, the resulting levels of CH4 has increased. In addition to the greater number of zeolite layers become increasingly declining CO2 and CH4 levels increase. This is because the more the number of layers of filler, wide contact area between the biogas by zeolite increasingly large that CO2 is absorbed by the zeolite increased.Keywords: Zeolite, CO2, CH4, purification, biogas continuous system
Optimalisasi Destilasi Nilam Kering melalui Pembekuan Pra Destilasi Sugiarto, Sugiarto; Sonief, A. As’ad; Sutikno, Djoko; Widhiyanuriyawan, Denny
Rekayasa Mesin Vol 5, No 1 (2014)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

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Abstract

The process of extracting oil from the leaves or stems cells by damaging the cell which usually done before or during distillation process. Damaging the cell can be done by mechanical process or freezing process. Chopping the leaves was done to damage the cells through the mechanical process, however the damage have not been able to destroy up to the celular level. While the freezing process could be expected to damage the tissue at the cellular level. Pure research on laboratory scale was used as the experiment method in this study. Freezing temperature pasca-distillation was variated on -13,4 ºC, -19,6 ºC and -24,8 ºC and without freezing process. While distillation process was varied on 95 ºC, 105 ºC dan 115 ºC. In this study, patchouli was distilled on wet and dry condition. LPG was used with automatically combustion control system of for keeping the temperature stability, increasing the capacity and quality of patchouli oil and reducing the production cost and the distillation time to less than 6 hours The stable distillation temperature was able to raise the volume of oil per kilogram of dry weight raw material and decrease the distillation time to less than 5 hours. Patchouli oil volume produced per kilogram of dry raw materials post freeze predistillation increased with increasing the distillation temperature. The low freezing temperature of the pre-distillation produced the high volume of patchouli oil per kilogram of raw material. Pre-distillation on the freezing process of dried patchouli was able to shorten the time of maximum distillation only in 3 hours. The range of distillation temperature on 95 ⁰C, 105 ⁰C and 115 ⁰C produced the different colors of patchouli oil from light brown to dark brown color.Keywords : optimalisation, distillation, dry patchouli, freeze pre-distillation
Perubahan Sifat Mekanis Komposit Hibrid Polyester yang Diperkuat Serat Sabut Kelapa dan Serat Ampas Empulur Sagu Leiwakabessy, Arthur Yanny; Purnowidodo, Anindito; Sugiarto, Sugiarto; Soenoko, Rudy
Rekayasa Mesin Vol 4, No 3 (2013)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

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Abstract

Filler composite material with natural fibers is ranging widely known in the manufacturing industry. Environmentally friendly material, able to be recycled, as well as able to destroy it self by nature is a technological demands of today. Coco fiber and pith of sago pulp fiber are natural fibers that derived from the processing of waste coconut and sago palms are abundant in the Moluccas and they have not been used optimally. Both of these materials can be used for the manufacture of composite, using polyester resin as the matrix. The research emphasis to get the maximum value of variation of fiber volume fraction and fiber coir pith of sago waste to the value of bending strength and impact strength, according to the desired application. Research methods Lay Hands Up in the manufacture of hybrid fiber composites with a combination of coconut fiber (SSK): sago pith pulp fibers (SES) with a variation of 10% SSK: SES40%, 20% SSK: SES30%, 30% SSK: SES20%, 40% SSK: SES10%. Dependent variable in the study is the bending strength and impact strength. The result is that an increase in bending strength and impact strength with increasing volume fraction, which is higher than the hybrid fiber coir fiber and coconut fiber pith of sago waste. The highest bending strength of the fiber volume fraction of 30%SSK: SES20%, amounting to 97 354 MPa, and the lowest bending force on the fiber volume fraction of 10% SSK: SES40% of 73 701 MPa, while the highest value of impact strength at SSK fiber volume fraction of 40% :SES10%, at 0178 J/mm², and the lowest value of the impact strength on the fiber volume fraction of 10% SSK : SES40% at 0.053 J/mm².Keywords: Mechanical Properties, composites hybrid, polyester, coconut coir fiber, fiber pulp sago pith.
Efek Freezing Damages dan Temperatur Distilasi terhadap Hasil Minyak Atsiri (Nilam) Hamidi, Nurhkolis; Ariyanto, Adhy; Sasongko, Mega Nur; Sugiarto, Sugiarto
Rekayasa Mesin Vol 5, No 2 (2014)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

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Abstract

Essential oils are a great group of vegetable oils in the form a viscous liquid at room temperature but easily evaporate so as to provide a distinctive scent. Indonesia is the worlds largest patchouli oil each year to supply about 75% of the world, but seen from the quality and quantity did not experience much change. This is due to most of the units of the oil still using simple technology / traditional and generally has a limited production capacity. Problems like this need to find a solution with one of the ways that pre-distillation using a freezing effect on the leaf so that the cells will be damaged so that the distillation process will be easier and get the quality of good patchouli oil. Freezing performed on fresh leaves and stems with a temperature variation of 13.8, -19.6 and -24.8 º C, while the temperature of distillation varies the 95, 105 and 115 º C, the clotting time for 2 hours. The results showed the presence of the lower freezing temperature the higher freezing the higher the content of patchouli alcohol (C15H26O), was to the effect of the higher distillation temperature distillation temperatures accelerate the process of spending patchouli oil from the leaves and stems.Keywords: Essential Oil, Predistillation, Temperature, Patchouli Alcohol (C15H26O)
Co-Authors . Lulusi, . A. As’ad Sonief Achmad Wibolo Adhy Ariyanto Adi Prayitno Adi Yusuf Setiawan, Adi Yusuf Aena Berlian Afrizal Afrizal Akmal Hidayat Anggrika Riyanti, Anggrika Angraini, Renni Anies Setiowati, Anies Anindita, Rahma Anindito Purnowidodo Apriandy, Fadhlullah Arbain Arbain, Arbain Ari Probandari Ari Rianto ARI WAHYUDI Ariansyah, Dedek Arinto Hadi, Arinto Arthur Yanny Leiwakabessy Asmaniyah Mardiyani, Siti Atmoko, Warigit Dri Augustinus Setiawan aviria ermamilia, aviria Azka, Cut Nawalul Bambang Purwanto Banun Rohimah, Banun Basin, Defry Berliana, Novi Bramaseto Rosie Pamungkas, Bramaseto Rosie Budh?ono, Fongnawati Budi Nugroho Budiyanti Wiboworini Budiyanto, Ricky Teguh Cahya, Dini Caisarina, Irin Chandradewana Boer Cut Mutiawati Danu Ariono Denny Widhiyanuriyawan Diah Suwarti Widyastuti, Diah Suwarti Didik Wahjudi Diffah Hanim Dinda, Raina Permitalia Djarot B Darmadi Djoko Sutikno Djumali Mardji Dono Indarto Dora, sylvia Terra Dwi Susilo Edy Victor Haryanto Sianturi, Edy Victor Haryanto Elbi Wiseno Entianopa, Entianopa Erwin Sulistyo Eti Poncorini Pamungkasari Fadli Fadli Fadli, Mohammad Faruq Syah Permana Putra Femiana Gapsari Fitrika Mita Suryani Gan Shu San Gilang Prasidya Jati Prasidya Jati, Gilang Prasidya Jati Gunandini, Dwi Jayanti Hadi, Upik Kesumawati Hakim, Lukman Hari Wujoso Harjono Harjono Harry Soesanto Hasnawati Hasnawati Henny Setyo Lestari, Henny Setyo Herdianti Herdianti, Herdianti Heri Sutarto Herlina, Intan Hikmi, Akbar Idris, Elfiwardah Ika Amalia Kartika Indriasari, Ika Iqbal Iqbal Islah Islah, Islah Isti Hidayah Istirochah Pujiwati, Istirochah Ita Rahmawati, Ita J. Darmawan Jalil, Erlinawati Jamasri Jamasri K. Wijayanti Karlina, Iin Khairani, Cut Khairul Khairul, Khairul Kido, Muhammad Ikram Komara, Liris Lis Krisna Harimurti, Krisna Kristiani, Wahyu Kunarti, Eny Kurniasari, Febrina Dian Kurniawan, Rizal Mahdi Lisa Agustriyana Ludia Mersi, Ludia Lukman Hakim Lulusi Lulusi M Waziz Wildan, M Waziz M. TAUFIQ NOOR ROKHMAN Marfu'ah, Nuun Marisdaya, Rara Marwan Marwan Masduki Masduki Matin, Matin Maulana, M. Aris Mega Nur Sasongko Merfazi, Muhammad Miyasto Miyasto Mudiantono Mudiantono Muhammad Isya Muhammad Nur Mulastin Mulastin, Mulastin Muntazar, Muntazar Musharyanti, Lisa nanang muhibuddin, nanang Novriza, Ferdiansyah Nugroho Bagus Nurhidayat, Taufik Nurhkolis Hamidi Nuun Marfuah Ofansha, Riza Peppy Herawati, Peppy Permatasari, Rani Putri Pitriyani Pitriyani Pramanda, Heru Putri Balqis, Putri Rahmani, Dhuyufur randy, riki Ratna Herawati Renni Anggraini Reyhan, Mohammad Rezzy Eko Caraka Rika Rosnelly, Rika Rini Astuti Risya Cilmiaty, Risya Riyana, Raihan Icthiar RUBEN DHARMAWAN Rudy Soenoko Ruhdi Faisal rumiati, rumiati Safwan Safwan, Safwan Sahri Sahri Saiful Anwar Saiful Saiful Saleh, Sofyan M Samsul Hadi Sari, Putu Tantri K. Sari, Risda Satrya, Hendra Septiani, Baiq Dewi Sukma Septiani, Shelomita Elisabeth Setya Rahayu Sigit, Singgih Harsoyo SISWANTO SISWANTO SITI MUSLIKAH Slamet Wahyudi Soegiyanto Soegiyanto, Soegiyanto Sofyan M. Saleh Sofyan M. Saleh Soviana, Susi Sri Sundari Sri Yuliani Sudjito Soeparman Surya, Khalida Susi Soviana Suswati, Dewi Syahbuddin Syahbuddin Syara, Aprilia Taman Ginting, Taman Tantoro Harmono Taufik Taufik Tejo Nugroho Tjuk Oerbandono Tonang Dwi Ardyanto, Tonang Dwi Tri Agustina, Tri Tri Yuli Pramana Ulya, Lulu Fathnatul Ummiani Hatta Upik Kesumawati Hadi viki widiantoro, viki Wardani, Dyah Ayu Kusuma Wardati, Wardati Wardi Wardi Wawan Wawan Widhiyastuti, Endang Winata, Felix Andhy Wisudanto Wisudanto, Wisudanto Wrisnijati, Dita Wrisnijati, Dita Wuni, Cici yenni, melda yenni, melda Yenni, Melda Yoestini Yoestini Yudhi Andrian, Yudhi Yudhi Lastiasih Yudi Suryawan Yunus Yunus Zianul Furqan