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All Journal Transmisi Rekayasa Mesin Info-Teknik JOURNAL OF EARTH ENERGY ENGINEERING Dinamisia: Jurnal Pengabdian Kepada Masyarakat G-Tech : Jurnal Teknologi Terapan Jurnal Pembelajaran Pemberdayaan Masyarakat (JP2M) JTM Automotive Experiences RING Mechanical Engineering Book of Open Source
Ena Marlina
Universitas Islam Malang
Aerospace Engineering Agriculture, Biological Sciences & Forestry Humanities Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Social Sciences Other

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ProduksiI Brown’s Gas Hasil Elektrolisis H2O Dengan Katalis NaHCO3 Marlina, Ena; Wahyudi, Slamet; Yuliati, Lilis
Jurnal Rekayasa Mesin Vol 4, No 1 (2013)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

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Abstract

This research is intended to investigate the effect of NaHCO3 (Natrium Bicarbonate) percentage on the performance of HHO (Brown’s Gas) production using electrolysis method. Performance of HHO production that was observed in this research were electric power that used for HHO production as well as rate and efficiency of HHO production. Electrolysis is decomposition of water molecules (H2O) into hydrogen and oxigen molecules (HHO) using electricity in an electrolite solution. This process takes place when two electrodes (anode and cathode) placed in the water and direct electric current flowed through the system. In this research Natrium Bicarbonate was dissolved in the water to increase the rate of electrolysis process. Percentage of Natrium Bicarbonate was varied from 2,5% – 15%. The results show that electric power that used for HHO production and rate of HHO production were increased with the increasing of Natrium Bicarbonate percentage and reach their maximum value at 12,5% Natrium Bicarbonat. However maximum value for electrolysis efficiency was occurred for Natrium Bicarbonate percentage of 10%.Keywords: Brown’s Gas, Electrolysis, NaHCO3 (Natrium Bikarbonate), Performance of electrolysis process
PENGARUH SIFAT MEKANIS BAHAN AISI 1045 YANG MENGALAMI PROSES DOUBLE HARDENING DAN CARBURIZING Suhatta, Jefri; Priyagung, Priyagung; Marlina, Ena
Jurnal Teknik Mesin Vol 5, No 01 (2015): Jurnal Teknik Mesin
Publisher : UNIVERSITAS ISLAM MALANG

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Abstract

The role of steel in the world of today's automotive industry is very important, especially in the manufacture of automotive components such as gears. Surely it is necessary to materials engineering to improve the mechanical properties of the steel in order to obtain good quality. In engineering steel material commonly used is the heat treatment process, one of them with a carburizing process where in this process aims to add carbon to the outer skin steel.in research aimed at finding a material that resists wear and has the tenacity and hardness levels are good, then from that in this study in addition to carburizing process is also followed by a double hardening process. In this study carburizing process was conducted using the pack carburizing with charcoal were added barium carbonate as a catalyst, the temperature used is 9500 C and a holding time of 60 minutes, and followed with a double hardening process with temperature 9000 C and 7500 C with a holding time 20 minutes. After that, in the test with Vickers hardness test and impackcharpy test. The results of this study showed more upgrade hardness after carburizing process but toughness decreased. And after the double hardening hardness decreases but i toughness ncreased. Before treatment the average hardness value of steel and toughness 209.03 HVN and 0.8425 joules / mm2. The results of carburizing process average hardness value and toughness 417.13 HVN and 0.3975 joules / mm2. Results of a double process of hardening value the average hardness and toughness 308.5 HVN and 1.0974 joules / mm2. The results of the process of hardening II double the average value of hardness and toughness 243.63 HVN and 0.5728 joules / mm2.
PENGARUH VARIASI WAKTU TAHAN CARBURIZING TERHADAP SIFAT MEKANIS BAJA AISI 1045 DENGAN MEDIA PENDINGIN AIR TDS NOL Prasetyono, Bayu; Hartono, Priyagung; Marlina, Ena
Jurnal Teknik Mesin Vol 5, No 01 (2015): Jurnal Teknik Mesin
Publisher : UNIVERSITAS ISLAM MALANG

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Abstract

Steel in the two-wheeled world automotive industry as the main raw material for the manufacture of gears. Hence the need for engineering mechanical properties of the steel to improve its quality. Steps in the mechanical properties of the steel engineering is the process of heat treatment, one of the heat treatment process to harden the steel surface is carburizing. The purpose of this study was to determine the effect of time variation carburizing resistant to mechanical properties of AISI 1045 steel with zero TDS water. Temperature carburizing wear 950 ? C. Carburizing process variations holding time is 1; 3; and 5 hours. Material hardness and toughness testing using vickers and charpy test. The results showed that the increasing violence after the carburizing process toughness tends to decrease. Before the process of carburizing average value 209.166 HVN hardness and toughness 0.8425 Joules / mm2. Holding time 1 hour carburizing process average value 417.13 HVN hardness and toughness 0.3975 Joules / mm2. Holding time 3 hours carburizing process average value 347.866 HVN and toughness 0.3333 Joules / mm2. Holding time 5 hours carburizing process average value 430.4 HVN hardness and toughness 0.3698 Joules / mm2
PENGARUH VARIASI JUMLAH NOZZLE TERHADAP DAYA LISTRIK YANG DIHASILKAN PADA PROTOTYPE TURBIN PELTON Assauri, Sufyan; Margianto, Margianto; Marlina, Ena
Jurnal Teknik Mesin Vol 6, No 01 (2016): Jurnal Teknik Mesin
Publisher : UNIVERSITAS ISLAM MALANG

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Abstract

Water energy is one renewable energy that are now widely developed in Indonesia to meet the needs of electrical energy increases, estimated in 2020 the electric energy needs of Indonesia increased rapidly up to three times. In addition, the power plant used in Indonesia to meet its electrical energy needs, mostly mesar a fossil-fueled power plants, such as oil, natural gas, and coal. Reserve source of energy derived from fossil expected to last 40 years for petroleum, 60 years for natural gas, and 200 years for coal, the limitations amid the increasing demand for electricity and the demands to tackle environmental pollution to be a challenge for Indonesia to develop energy sources are renewable, such as nuclear power, wind, water, solar, geothermal, and bio-energy. Water energy harnessed through the potential energy of water into mechanical energy weeks to turn a turbine and then converted into electricity by a generator. By varying the use of the number of nozzles used is 1 nozzle, two nozzle, 3 to determine how much influence ? , 90 ? , 60 ? nozzle and valve openings 30 the reactor nozzle consumption amount of electricity generated in this pelton turbine prototype. The highest electric power generated in the use of 3 nozzle valve openings produce 0.00072 m3 / s flow rate, 91.71 m / s flow rate, ? invitation 90 411 rpm rotation pulleys runner, and the electric power generated by 10.5357 watts. Can be deduced that the number of nozzle use can meningkatkat electric power generated petlton turbine prototype.
PENGARUH VARIASI TIMING INJECTION DAN CAMPURAN BAHAN BAKAR TERHADAP UNJUK KERJA MOTOR DIESE Susanto, Taufiq Heri; Margianto, Margianto; Marlina, Ena
Jurnal Teknik Mesin Vol 6, No 01 (2016): Jurnal Teknik Mesin
Publisher : UNIVERSITAS ISLAM MALANG

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Abstract

Diesel engine is a type of internal combustion engine, fuel burn due to high compression pressure inside the cylinder. Comparison with the fuel-air mixture, timing fuel injection, and the amount of oxygen contained in dry air around, the operational aspects that affect the diesel engine. The purpose of this research was to study the characteristics of the diesel engine (torque, power, specific fuel consumption, and smoke opacity) on timing injection angle 14 , 18 , and 22 BTDC. The study was conducted with an experimental test on diesel engine fuel with biodiesel and coconut oil mixture with a percentage of a mixture of 0%, 5%, and 10% on a stationary diesel engine 2000 rpm. The result showed that the maximum torque of 140.98 Nm, 29.51 kW power and specific fuel consumption 0.468 kg / kWh at an angle of 14 BTDC with a mixture of coconut oil by 0%. While low smoke opacity 7.5% in coconut oil mixture in the fuel as much as 10% at an angle of 14 BTDC. Rewind the injection timing angle create torque, effective power and specific fuel consumption is less than optimal, while the use of coconut oil in the fuel can reduce smoke opacity levels in diesel engine.
PENGARUH PROSENTASE KOH TERHADAP PRODUKSI BROWNS GAS DALAM PROSES ELEKTROLISIS DENGAN MENGGUNAKAN ELEKTROLISER DRY CELL Rachman, Rifqi Mahaputra; Margianto, Margianto; Marlina, Ena
Jurnal Teknik Mesin Vol 8, No 01 (2017): Jurnal Teknik Mesin
Publisher : UNIVERSITAS ISLAM MALANG

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Abstract

Alternative energy is being intensively developed to become a new fuel that is hydrogen. To be able to produce hydrogen gas can be done using water electrolysis process by outlining the H2O into HHO gas (Hydrogen Hydrogen Oxygen) using DC current, with HHO Generator media using electrodes such as Stainless Steel plate 304. In this research investigated the efficiency, speed of production, and the power generated by the generator HHO Dry Cell type using KOH catalyst by varying the catalyst is 3,4,5%. Specifications of the generator itself is using Stainless Steel plate 304 with the number of 10 electrodes (plates) is divided into two plate anode (+), 1 plate cathode (-), and 7 plate neutral, with plate thickness of 2mm with the distance between the electrodes of 2mm. results of research and testing HHO generator type of Dry Cell is obtained mixture catalyst is best to use a mixture of 3% KOH in 500ml of distilled water, data showed that the required power generator at 48 watts, with the efficiency of the generator by 64%, while the rate of production of HHO gas for 0.00475 l / s
PENGARUH VARIASI TEKANAN INJEKTOR DAN PUTARAN TERHADAP PERFORMA DAN GAS BUANG PADA MOTOR DIESEL Ashari, Apri; Wahab, Abd.; Junaedi, Ena Marlina
Jurnal Teknik Mesin Vol 6, No 01 (2016): Jurnal Teknik Mesin
Publisher : UNIVERSITAS ISLAM MALANG

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Abstract

The diesel fuel injection system is very important and closely related to combustion in diesel motors. The injector is a component of the diesel fuel injection system that serves to atomizes the into the combustion chamber. The combustion process in diesel motors is depend on the results of the injector fuel carburetion. The proper of injector pressure will produce better fuel carburetion and better combustion. This research aims to determine how much influence the fuel pressure in the injector of diesel engine performance and opacity smoke by setting the variation is tie up right or left to lessen the adjusting screw to add or reduce the fuel pressure. Diesel engine used were isuzu panther 2300 cc. In this experiment used engine test bed, in which the machine is placed on a stand, and then connected to dynamometer. The muffler is connected to smoke test. The parameters measured is the power, torque, specific fuel of consumption (SFC), effective specific fuel of consumption (ESFC) and opacity smoke. The results of experiment is seen the increase of power and torque after variation, and maximum at a pressure of 130 bar have 40,4 kW at 2500 rpm, and 16,8 kg.m at 1500 rpm. Pressure at 130 bar is better than pressure of 110 bar and 120 bar. The descending of opacity smoke result is seen at a pressure of 120 bar and 130 which have lowest 17,2 % and 16,8 % of opacity smoke at 1500 rpm, more advance engine turning is more high opacity smoke. More high pressure of injector and engine turning have is increase torque, effective power and reduce exhaust emission levels in diesel engine. But while the pressure increase then more high fuel consumption.
PENGARUH VARIASI PROSENTASE KATALIS NAHCO3 TERHADAP PRODUKSI BROWNS GAS PADA PROSES ELEKTROLISIS AIR DENGAN MENGGUNAKAN ALAT TIPE DRY CELL Taufik, M.Taufik; Margianto, Margianto; Marlina, Ena
Jurnal Teknik Mesin Vol 8, No 01 (2017): Jurnal Teknik Mesin
Publisher : UNIVERSITAS ISLAM MALANG

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Abstract

Perkembangan dalam bidang energi alternatif sekarang ini tidak lain untuk menggantikan bahan bakar minyak bumi yang semakin terbatas, dalam penelitian ini akan membahas energi alternatif tentang gas HHO atau yang lebih dikenal dengan sebutan Browns Gas. Untuk mendapatkan gas HHO dapat dilakukan dengan proses elektrolisis air dengan bahan kimia NaHCO3 (Natrium Bikarbonat) sebagai katalisnya. Proses elektrolisis air ini yaitu dengan memisahkan molekul air H2O menjadi gas HHO 2H2 dan O2 (Hidrogen Hidrogen Oksigen) dengan bantuan arus listrik searah (DC) yang dialirkan melalui rangkaian plat Stainless Steel tipe 304 sebagai elektrodanya, plat tersebut berjumlah 10 yang terdiri dari 2 plat pada kutub (+) anoda, 1 plat pada kutub (-) katoda, dan 7 plat netral, ketebalan masing-masing plat 2 mm dengan jarak antar elektroda yaitu 2 mm yang disebut sebagai generator HHO. Dalam penelitian ini, akan memperhitungkan konsumsi daya, laju produksi gas HHO, dan effisiensi pada generator HHO tipe Dry Cell dengan berbagai macam variasi prosentase katalis NaHCO3 sebesar 3%, 4%, dan 5%. Hasil penelitian dan pengujian generator HHO tipe Dry Cell ini mendapatkan campuran katalis NaHCO3 terbaik yaitu pada prosentase 3% dalam 500 ml air aquades, dapat diketahui bahwa konsumsi Daya listrik generator HHO sebesar 15 watt, bisa menghasilkan produksi gas HHO sebesar 1,7500 ml/s, dengan effisiensi generator sebesar 75,93%.
PENGARUH VARIASI LARUTAN ELEKTROLIT TERHADAP PRODUKSI BROWN’S GAS Ena Marlina
INFO-TEKNIK Vol 17, No 2 (2016): INFOTEKNIK VOL. 17 NO. 2 2016
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/infotek.v17i2.2495

Abstract

The need of energy is increasing continuously and the reliance of fossil fuels is very great, looking at condition te be sure is needed a certain research which focuses to find the altenative. By conduction in hopefully the solution will be found. By separation of H2O (Water) to be Hydrogen (H2) dan Oxygen (O2) using electrolysis chemical reation, this research uses KOH and NaHCO3 catalist with the percentage of each 0; 1; 2; 3; 4 % as a trigger to compare each other in order to accelerate the H2O electrolysis process. It also uses SS 306 L electrode with tho chathode and anode number which are Wet cel. Overdel, the result in every research the percentage of KOH solution has high value because it is a good conductor and the biggets Brown’g gas which is produted is 16,33 ml/s with 231 Watt electric consumtion while if uses NaHCO3 the  Brown’g gas 12,675 ml/s with 283,08 Watt electric consumtion.
ALAT PRODUKSI HHO TIFE DRY CELL DENGAN VARIASI JARAK CELL ELEKTRODA Nur Robbi; Ena Marlina; Mochammad Basjir
INFO-TEKNIK Vol 18, No 2 (2017): INFOTEKNIK VOL. 18 NO.2 2017
Publisher : Universitas Lambung Mangkurat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20527/infotek.v18i2.4328

Abstract

Co-Authors Abd. Wahab Abdul Karim Abdul Wahab Aghitsnillah, Nuro Qolbi Agung Rahmat Hidayatullah Akhmad Faruq Alhikami Al Farrosi, Faisholul Umam Alfiah Ekariani Amaria R., Ellen Annas Nuur Fadhillahtur Rochman Aruhi, Nasarudin As'at Nursalim Ma'as Hamzah Ashari, Apri Assauri, Sufyan Basjir, Mochammad Citra Kurniawan Dewi Izzatus Tsamroh Eka Wahyu Sri Wilujeng Ekariani, Alfiah Ellen Amaria R. Fahmi Husaini Mastur Faisholul Umam Al Farrosi Farni Mudakir Febriana Sari, Wiwik Dyah Fikki Bisma Setia Effendi Firman Hidayat Firman Hidayat Gabriel Jeremy Gotama Galang Jalu Tanaya Gotama, Gabriel Jeremy Hadi Mutakkim Hidayatullah, Agung Rahmat Ichiyanagi, Mitsuhisa Ifit Novita Sari Khalim, M. Nur Khovadli Ocvando Lilis Yuliati Linda Silvia, Linda Lulut Ernin Maharani M. Syamsul Arif Ma'as Hamzah, As'at Nursalim Machfudz, Masyuri Maharani, Lulut Ernin Margianto Margianto Mastur, Fahmi Husaini Metty Trisna Negara Mitsuhisa Ichiyanagi Mohammad Ulinnuha Mudakir, Farni Mulyadi Mulyadi Naily Zulfa Nanda Ayu Pawestri Nasarudin Aruhi Novan Yoga Prasetya Nur Muhammad Rosyid Nur Robbi Nuro Qolbi Aghitsnillah Nurrosidin Nurrosidin Ocvando, Khovadli Otto Fajarianto Pawestri, Nanda Ayu Prasetyono, Bayu Priyagung Hartono Priyagung, Priyagung Rachman, Rifqi Mahaputra Rahayu Kurniati, Rini Rochman, Annas Nuur Fadhillahtur Rosyid, Nur Muhammad Rully Dyah Purwati Sekar Rahima Sahwahita Setia Effendi, Fikki Bisma Siti Asmaniyah Mardiyani Siti Nurlaila Siti Nurlaila, Siti Slamet Wahyudi Sri Wilujeng, Eka Wahyu Suhatta, Jefri Sumartono, Agus Tri Susanto, Taufiq Heri Takashi Suzuki Takashi Suzuki, Takashi Tanaya, Galang Jalu Taufik, M.Taufik Tri Candra Wulandari Trismawati, Trismawati Wahab, Abd. Walid Najibullah Willyanto Anggono Willyanto Anggono Wiwik Dyah Febriana Sari Yazirin, Cepi Zulfa, Naily