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All Journal Signifikan : Jurnal Ilmu Ekonomi JURNAL ECONOMIA Prosiding Seminas Competitive Advantage JEJAK Trikonomika: Jurnal Ekonomi Media Ekonomi dan Manajemen Journal of Economics, Business, & Accountancy Ventura Rekayasa Mesin Journal of Engineering and Management in Industrial System ROTOR: JURNAL ILMIAH TEKNIK MESIN Jurnal Ekonomi Pembangunan: Kajian Masalah Ekonomi dan Pembangunan Walisongo: Jurnal Penelitian Sosial Keagamaan Jurnal Riset Manajemen dan Bisnis (JRMB) Fakultas Ekonomi UNIAT Jurnal Akuntansi dan Ekonomika International Conferences SDGs 2030 Challenges and Solutions Jurnal Surya Masyarakat Jurnal Inovasi Hasil Pengabdian Masyarakat (JIPEMAS) Jurnal Teknologi Terapan LOYALITAS: Jurnal Pengabdian Kepada Masyarakat Jurnal Teknik Mesin Indonesia Jurnal ABDINUS : Jurnal Pengabdian Nusantara Abdimas: Jurnal Pengabdian Masyarakat Universitas Merdeka Malang Community Development Journal: Jurnal Pengabdian Masyarakat Reswara: Jurnal Pengabdian Kepada Masyarakat Jurnal Surya Masyarakat Muttaqien; Indonesian Journal of Multidiciplinary Islamic Studies International Journal of Mechanical Engineering Technologies and Applications (MECHTA) Etihad: Journal of Islamic Banking and Finance Wahana Pedagogika: Jurnal Ilmiah Pendidikan dan Pembelajaran Jurnal Ekuilibrium PAPUMA: Journal of Comunnity Services IJABAH: Indonesian Journal of Sharia Economics Business and Halal Studies JIES : Journal of Islamic Economics Studies

Lilis Yuliati

Departement Of Mechanical Engineering Brawijaya University, Malang

Author-ID : 425041

Religion Aerospace Engineering Agriculture, Biological Sciences & Forestry Arts Humanities Automotive Engineering Biochemistry, Genetics & Molecular Biology Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Materials Science & Nanotechnology Mechanical Engineering Public Health Social Sciences Other

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Kecepatan Pembakaran Premixed Campuran Minyak Jarak - Liquefied Petroleum Gas (LPG) pada Circular Tube Burner Riwu, Defmit B.N.; Wardana, I.N.G.; Yuliati, Lilis
Jurnal Rekayasa Mesin Vol 7, No 2 (2016)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

This study was conducted to determine the characteristics of premixed combustion of a mixture of castor oil - LPG on a circular tube burner. Percentage of LPG fuel in a mixture of jatropha curcas oil - LPG varied as much as 10%, 20%, 30%, and 40% of the mass flow jatropha curcas oil vapor. Considering the flame of fire there are two angles formed which describe burning velocity. Also there are formed two cones of fire where the bright blue inside cone is a premixed flame, while the outer blue white cone is flame a diffusion flame. An increase in the percentage of LPG makes the value of top and bottom angle increase. So that the burning velocity on the upper angle decrease whilst on bottom angle increase.

Studi Numerik Pembakaran Butana (C4H10) dalam Meso Scale Combustor dengan Perforated Plate Baananto, Fauzan; Yuliati, Lilis; Hamidi, Nurkholis
Jurnal Rekayasa Mesin Vol 9, No 2 (2018)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

This research was conducted to determine the combustion stability and flame temperature inside meso-scale combustor with variations of perforated plate flame holder and combustion gas temperature at combustor exit side using numerical method or Computational Fluid Dynamics (CFD). Meso-scale combustor is made of two pieces of quartz glass tube with a length of 20 mm and 10 mm. Each quartz glass tube having an internal diameter of 3.5 mm and a wall thickness of 0.7 mm. Two kinds of perforated plate flame holder made of copper i.e. perforated plate type I and perforated plate type II, inserted between two quartz glass tubes. Butane (C4H10) and air were used in this study as fuel and oxidizer, respectively. Numerical simulations were performed using ANSYS Fluent 17.0. The result of numerical simulation showed that the most stable combustion is obtained in meso-scale combustor by using flame holder in the form of perforated plate type II at higher reactant velocity. In addition, the combustor with perforated plate flame holder type II also produces a higher flame temperature at the same reactant speed. These phenomena occured due to the temperature distribution into the reactans is more uniform and the recirculation heats into the reactans is better than the combustor with perforated plate flame holder type I. Flame and combustor walls temperatures increased with increasing recirculation heats.

Karakteristik Pembakaran Difusi Campuran Biodiesel Minyak Jarak Pagar (Jathropha Curcas L) - Etanol/Metanol Pada Mini Glass Tube Al Banjari, M. Arsad; Yuliati, Lilis; Sonief, Achmad Asâ€™ad
Jurnal Rekayasa Mesin Vol 6, No 1 (2015)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Diffusion is a combustion which is performed on a diesel engine, biodiesel as a biofuel is used to replace fossil fuels. Many studies have looked at the effect of a mixture of biodiesel fuel-ethanolmethanol-diesel with different percentages in terms of engine performance and exhaust emissions, but have never done research on the characteristics of combustion and interface evaporation. This paper discusses how the comparison of the characteristics of the diffusion combustion mixture of biodiesel and biodiesel-ethanol-methanol in mini glass tube. The results showed that the use of biodieselethanol occurred many explosions flame and lift off than biodiesel-methanol. Biodiesel-ethanol evaporation interfaces tend to be flat because there were many explosions so that the liquid fuel out of the burner. The use of biodiesel-methanol flame produces more stable than biodiesel-ethanol.

Analisis Pengaruh Bahan Bakar Alternatif pada Lemari Pengasap Ikan terhadap Kualitas Produk Hasil Asapan Nugroho, Setyawan Dwi; Soeparman, Sudjito; Yuliati, Lilis
Rekayasa Mesin Vol 9, No 3 (2018)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

This study was conducted to determine the effect of the amount of fuel in the combustion chamber on the fish smoking kiln to temperature and temperature distribution in the smoke room as well as the quality of the smoked fish.This study used 3 types of fuel those are dry coconut shell, coconut fiber and sugarcane pulp briquette. Temperature needed in the smoke room for 3 hours is 80° C, andthe fish smoked ismilkfish. The result showed that to achieve the same smoking temperature, it required the amount of dry coconut shell as much as 1045 grams, while the coconut fiber as much as 1730 grams and sugarcane pulp briquette as much as 2055 grams. The temperature of each fishing point is relatively even with a maximum temperature difference of 1.38%, while the difference between the setting temperature and the temperature at the maximum fish points is 8.88%. It can be concluded that the heat value, particle density rate and combustion rate (heat release) of fuel affect the amount and distribution of fuel to the temperature change in the fish smoking room in the fish smoking kiln. The quality of smoked fish products with 3 types of fuels meets SNI 2725.1.2009.

Pengaruh Penambahan Langkah Kerja terhadap Unjuk Kerja Motor Bakar Gunawan, Chandra; Siswanto, Eko; Yuliati, Lilis
Jurnal Rekayasa Mesin Vol 10, No 3 (2019)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jrm.2019.010.03.1

The duration of fuel-air diffusion in the 4 stroke combustion engine is relatively short, which is 0.02 seconds at 3000 rpm so that at high rotation the level of homogeneity of the fuel-air mixture becomes low. The addition of steps in a 4 stroke combustion engine to a 6 stroke combustion engine is expected to increase the duration of mass diffusion and temperature in the air-fuel mixture. So that the homogeneity of the air-fuel mixture increase and more expansion power of the combustion results. Engine performance testing by reducing the engine speed of 400 rpm at the initial condition of the throttle valve opening by 30% then the results of the performance of the two motors will be compared. The test results show an increase in power and torque in a 6 stroke combustion engine compared to a 4 stroke combustion engine at the same rotation conditions of 15%. As for the value of the specific fuel consumption effective (SFCe), thermal efficiency, and exhaust gas emissions of Hydrocarbon (HC) 4 stroke fuel is still better.

ProduksiI Brownâ€™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

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (316.397 KB)

This research is intended to investigate the effect of NaHCO3 (Natrium Bicarbonate) percentage on the performance of HHO (Brownâ€™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% â€“ 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: Brownâ€™s Gas, Electrolysis, NaHCO3 (Natrium Bikarbonate), Performance of electrolysis process

Karakteristik Pembakaran Wood Pellet Stove dengan Variasi Geometri dan Blockage Ratio Flame Connector Yuliati, Lilis; Hamidi, Nurkholis; Sasongko, Mega Nur; Ibadurrohman, Ibrahim Ahmad
Rekayasa Mesin Vol 10, No 3 (2019)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jrm.2019.010.03.13

This research was intended to investigate the effect of the geometry and blockage ratio of the flame connector on the combustion characteristics of wood pellets on a wood pellet stove. Combustion characteristics observed in this research included flame visualization, flame temperature, specific fuel consumption, and corrected-specific fuel consumption. Two types of geometry were used as a flame connector, i.e. disk and cone; for each geometry, the blockage ratio was varied at 0,6, 0,7, and 0,8. The blockage ratio was varied by change the number of the circular hole on the flame connector. Combustion in wood pellet stove without flame connector was then used as a comparison. The flame visualization test was applied to find out the color and dimensions of the flame, which was then used to determine the temperature on this flame. The water boiling test method version 4.2.3 was used to determine specific fuel consumption and corrected specific fuel consumption. The combustion chamber of the wood pellet stove has a dimension of 15 cm diameter and 20 cm height. Wood pellet supply used intermittent - continuous feeding system with a mass flow rate of 16 gram/minute. Flame visualization shows that stove with cone flame connector has a larger flame dimension and flame dimension decreases with the increasing of blockage ratio. The highest flame temperature occurred near the outlet of the combustion chamber, the same conditions were observed in all variations experiment. The application of flame connector involves greater specific fuel consumption due to longer boiling time. However, a correction factor by considering the amount of evaporated water results from corrected specific fuel consumption of wood pellet stove with cone flame connector which is smaller compared to the other type of wood pellet stove.

Pengaruh Penambahan HHO terhadap Kinerja dan Ionisasi Pembakaran Motor Bensin Akbar, Ali; Wardana, ING; Yuliati, Lilis
Rekayasa Mesin Vol 5, No 1 (2014)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (450.847 KB)

This aim of this research was to conduct the effect of HHO which injected into the combustion chamber through the intake manifold of the gasoline four-stroke motorcycle engine. HHO is a mixture of hydrogen and oxygen was produced by water electrolysis process.The experiments were carried out by using the HHO generatorin intake manifold to produced HHO gas, which injected into the combustion chamber. The HHO gas injection was varied of 0 ml/s, 0.75 ml/s, 1.5 ml/s, 2.25 ml/s and 3 ml/s based on the engine shaft revolution (rpm). The engine shaft revolutions were also varied at 1700 rpm, 2200 rpm, 2700 rpm, 3200 rpm, 3700 rpm, and 4200 rpm. The engine performance (power output effectively, SFC, and thermal efficiency), the ionization combustion (burning voltage and burning time) and exhaust gas emissions (HC and CO) were investigated. The results show that the additionof the HHO gascould improve the performance of the gasoline four-stroke engine. The effective of power out-put and thermal efficiency increase as increase the HHO injection.The specific fuel consumption (sfc) was also decreases as increases the HHO injection. The ionization combustion much better, which the voltage products of combustion increase and combustion time decrease as increase the HHO injection. The addition of HHO gas was also improved the quality of exhaust gas emission which are reduce the content of CO and HC gases due tothe HHO enhance the combustion process. The hydrogen gas has a high diffusivity which can improve of the fuel mixing, turbulence and homogeneity. The hydrogen gas has the flamehigh faster than gasoline, therefore its decrease the burning time as increase the HHO injection.Keywords: HHO, Hydrogen, Ionization, Gasoline Engine, Emissions

Pengaruh Persentase Biodiesel Minyak Nyamplung â€“ Solar terhadap Karakteristik Pembakaran Droplet Udin, Misbach; Yuliati, Lilis; Novareza, Oyong
Jurnal Rekayasa Mesin Vol 8, No 1 (2017)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

The aim of this research is to investigate the effect of biodiesel percentage on the droplet combustion characteristic of calophyllum inophyllum biodiesel-diesel fuel blended. The combustion characteristic included ignition delay time, flame visualization, burning rate, and flame temperature. Testing was conducted using fuel blended with biodiesel percentage of 0%, 10%, 30%, 50% and 100%. The fuel was dripped and shaped a droplet that placed on the tip of thermocouple junction and ignited using a heater. The result shown that the ignition delay time increase with increasing biodiesel percentage due to its high flash point temperature and low volatility. Furthermore, burning rate and flame temperature increase with the increasing biodiesel percentage in the blended. These phenomena related to more microexplosion occurrence in the droplet combustion of fuel blended with higher biodiesel content. The last result shown that combustion of diesel fuel droplet has the highest flame dimension, related to its low burning rate and faster vapor diffusion rate.Â

Metode Pirolisis Untuk Penanganan Sampah Perkotaan Sebagai Penghasil Bahan Bakar Alternatif Wijayanti, Widya; Sasongko, Mega Nur; Meidiana, Christia; Yuliati, Lilis
Jurnal Rekayasa Mesin Vol 4, No 2 (2013)
Publisher : Jurusan Teknik Mesin, Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (188.798 KB)

The research on the processing of organic municipal waste conversion has been done by using pyrolysis method. The research aims to gain an alternatif fuels and to minimize the landfill space. In the pyrolysis process, it was investigated the char formation as solid fuel as well as its heating value. The char formation was determined by the change of mass and volume of waste for minimizing landfill area.The waste compositions were obtained by surveying the 10 families during 10 days and then it was made the waste spesimens as the pyrolysis feedstocks. The pyrolysis processes were operated in range temperature 200oC to 400oC. Then, the char formations as pyrolysis products were tested by using bomb calorimeter to qualify the heating value of the products. The results showed that the waste was able to be a solid fuel due to the quality of its heating value. The increasing of the heating value could reach 150% from unpyrolyzed waste to pyrolyzed one. In addition, the pyrolysis method was able to significantly minimize the volume of waste, so that it has a potential way to overcome the need of a large landfil area in which it could reduce up to 50% in mass and 85% in volume. In waste pyrolysis method, it was only needed 2 hours operating process and low-temperature process (only up to 300oC). It did not require require a high-operating temperature, therefore, the handling of municipal organic waste to save area landfill and produce alternative fuel could be done in short time and did not require great energy.Keywords: waste, conversion energy, alternatif fuels, pyrolysis

Co-Authors A.A. Ketut Agung Cahyawan W Achmad As'ad Sonief Adhitya Wardhono Adi Yermia Tobe Agung Sugeng Widodo Agung Sugeng Widodo Agus Luthfi Aji, Supa Kusuma Ali Akbar Andy Hardianto Andy Hardianto Aries Boedi Setiawan Aritonang, Gabriel Rianto Ariyani, Novi Arwin Arwin Ati Musaiyaroh, Ati Atmaja, Purna Pria Badara Shofi Dana, Badara Shofi Christia Meidiana Defmit B.N. Riwu Denny Widhiyanuriyawan Desyandri Desyandri Djarot Bangun Darmadi Dominikus Rato Dwi Kristanto Edy Hariyadi Eko Siswanto Ena Marlina Endah Kurnia Lestari Erlangga, Okyviandi Putra Faiz, Naufal Muhammad Faiza, Laila Niswatul Fajar Wahyu Prianto Fauzan Baananto Firda, Rochmania Francisca Gayuh Utami Dewi Gunawan, Chandra Hamidi , Nurkholis Hamidia, Nurkholis Heru S.P. Saputra I.N.G. Wardana I.N.G.Wardana I.N.G.Wardana Ibadurrohman, Ibrahim Ahmad Ichtiaraka Amarullah Ilham, Mochamad ING Wardana Ketut Tirtayasa Khusnul Khatimah, Diah Ayu Latifah, Khusnul Lazuardi, Muhamad Luthfi Luqyana, Salsabilla Firyal M. Arsad Al Banjari M. Arsad Al Banjari, M. Arsad Maulana , Syahrizal Maulana, Reza Bagas Mega Nur Sasongko Moch. Agus Choiron Moch. Agus Choiron Mochammad Khoirul Rosidin Moh. Adenan N. Ari Subagio Najah, Amaliyan Nanik Istiyani Nissa, Tiffany Dian Nugroho, Arief Budi Nugroho, Setyawan Dwi Nur Rachman Supadmana Muda Nurdin Hasananto Teguh Nurkholis Hamidi Oyong Novareza Pragiwaka, Rafif Ezrha Pratikto Pratikto Pratikto, Pratikto Pratiwi, Izzatul Juhan Salsa Bila Priyanto, Fajar Wahyu Pujohastarto, Ilham Ridwan Purnami Purnami Purnami Purnamie Titisari Puspitasari, Nazila Dwita Rahma Redi Bintarto, Redi Riska Rian Fauziah Rohmah, Fifi Nur Rudianto Raharjo S Siswanto Saputra, Indra Adi Sari Dewi, Beti Sarip Sarip sarip, sarip Septarina Prita Dania Sofianti Shulthoni, Mochammad Simanungkalit, David Siswanto Siti Komariyah Slamet Wahyudi Sonief, Achmad Asâ€™ad Sudjito Soeparman Sukhma Kusuma Dewi Sulaksono, Leonardo Kurniawan Sutantio, Raden Alamsyah Teguh Dwi Widodo Titik Maslikatin Tobe, Adi Yermia Udin, Misbach Utami, Shintya Fatma Tri Wibisono, Sunlip Widya Wijayanti Wilantari, Regina Niken Winarto Winarto Yaqinah, Nuriyatul Inayatil

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