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Analisis Laju Penurunan Temperatur di Dalam Ruangan Menggunakan AC Low Watt 0,5 HP Khambali Khambali; Listiyono Listiyono
Jurnal Energi dan Teknologi Manufaktur Vol 4 No 01 (2021)
Publisher : Polinema Press, Politeknik Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33795/jetm.v4i01.68

Abstract

Heat absorb ability split AC is the most important factor in the cooling speed on room temperature. The rate of temperature drop is determined by many factors, including compressor power. Nowadays, there are many Split AC are produced that have low power (low Watt), so that research is needed to determine the cooling speed in a room. This study uses a low watt split AC with a power of 0.5 HP. The distance from the evaporator and the outside temperature are used as independent variables, while the rate of temperature reduction or cooling speed in the room is used as the dependent variable. The results showed that the distribution of room temperature and the rate of temperature reduction in the room varied based on the position of the distance to the location of the AC Split Low Watt. The lowest temperature and reduction rate in the room occurs at a distance of 2 m and 3 m in front of the AC location. The outside temperature or the temperature around the location of the AC condenser affects the temperature distribution at each distance in front of the AC. When the outside temperature is low, the temperature conditions at a distance of 1 m, 4 m, and 5 m have a significant difference. While the high outside temperature conditions, the temperature at a distance of 1 m, 4 m, and 5 m, namely the positions close to the wall, is almost the same. Kata kunci: AC, split, low watt, evaporator
OPTIMALISASI PRECOATING ASAM JERUK NIPIS PADA BAJA TERHADAP KEKASARAN PERMUKAAN Listiyono Listiyono
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.v18i2.4345

Abstract

The process of coating is a metal coating process well with other metals or metal oxides. Even now coating paint / color is also using coating processes. Therefore, there is a hot coating, powder coating, electrical coating, and so forth. Therefore it is necessary to examine more deeply how to get the high-quality coating process. The type of coating used herein are electrically degreasing. A metal plating actors not only get results pengalanman other people are there in the field. The problem until now no one has conducted a study / research in the coating process (electrically degreasing) metal with acids of fruits .Penelitian was conducted in the Laboratory of Mechanical Engineering Polteknik Malang The aim of this study are: 1. Finding how much influence sour lime in steel metal precoating process. 2. Determining factors and optimum levels to get to the surface roughness of steel precoating results.The method used in this research was Factorial Design of Experiments. By taking two factors: the solution concentration and flow of electrically degreasing processes (coating) and. There are 3 levels of concentration are: 5 ml / liter, 10 ml / liter, and 15ml / liter of water. level. While the current level of 3 amps, 4 amp and 5 amp.  With experimental data collection techniques. Analysis with MINITAB.The results in the interaction factor concentration and electrical currents can affect the outcome of citric acid degreasing. Concentration and optimal flow in precoating process citrate was 5 ml / l and 5 amperes. 
PEMBERDAYAAN PEMUDA RT.09 RW. 04 DI KELURAHAN TUNJUNG SEKAR MELALUI PENDIDIKAN DAN PELATIHAN PEMBUATAN RANGKA TEROP Sadar Wahjudi; Kasijanto Kasijanto; Listiyono Listiyono; Eko Hendry Suyono; Moh Nasir Hariyanto
Jurnal Pengabdian Kepada Masyarakat (J-ABDIMAS) Vol 4 No 1 (2017): Jurnal Pengabdian Kepada Masyarakat 2017
Publisher : Publisher UPT P2M Politeknik Negeri Malang

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Abstract

In neighborhood RT.09 RW.04 Tunjungsekar urban village, many young people are unemployed and have high motivation in restricting their village in RT environment, besides because in neighborhood RT. this is a lot of activities and there is no suitable place in the preparation of the current event or is being done on the road by installing tents from the rental of a large enough cost and hi cash RT. From the above problems and initial surveillance from the authors agreed to be given training and education of Electrical Electrical to make the framework of the terop on the youth in neighborhood RT.09 RW.4 in Tunjungsekar Village to be used as the provision of his life. The purpose of this PKM is: 1. Helping the youth in neighborhood RT.09 RW.04 to get Electrical Laser skill, 2.Helping youth in neighborhood RT.09 RW.04 in making frem of tend, which many use electric welding machine , 3. Helping youths in neighborhood RT.09 RW.04 to gain knowledge in work with Electrical Welding machine so that it will improve their competitiveness and income. The results obtained in this PKM is 1. the presence of awning in the neighborhood RT.09 RW.04 Tunjungsekar Village, which can be used alone or rented so that it can raise the cash RT. 2. The youth have welding skills so as to be able to increase their income. and 3. Youth groups in the environment has a welding machine from donation Polytechnic of Malang.
PEMBUATAN BIOPORI RESAPAN AIR HUJAN DI RT 09 RW 04 KEL.TUNJUNGSEKAR, KEC.LOWOKWARU KOTA MALANG Kasijanto Kasijanto; Sadar Wahjudi; Heryanto Heryanto; Listiyono Listiyono; Kris Witono
Jurnal Pengabdian Kepada Masyarakat (J-ABDIMAS) Vol 5 No 1 (2018): JURNAL PENGABDIAN KEPADA MASYARAKAT 2018
Publisher : Publisher UPT P2M Politeknik Negeri Malang

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Abstract

Kelurahan Tunjungsekar is one of District in Malang, which is located at center of town that it has rarely have a water absorbtion region so it is prone to flooding when it rains.  Through this PkM program, it is proposed a biopori production that serves as a water catchment area which can help the land or residental areas that have rarely trees to absorb water in a relatively short time so that no water flows or even floods occur.  The method of implementation of this program is to invite people to make biopori at some point which is prone to puddle. Some stages of the implementation of this biopori making program are: 1. The preparation stage, at this stage preparation of equitment and biopori media and site survey to determine which points need to be installed biopori. 2. Implementation phase, at this stage people do soil drilling and installation of biopori at some point location that has been predetermined. Reporting stage, at this stage will be reported the results of activities that have been implemented including details of the cost. The whole stages are conducted over a period of 8 months involving the role of the civilitation RT.09 RW.04 Kel. Tunjungsekar Kec. Lowokwaru Kota Malang.
The Effect of Bioethanol and Pertamax Mixtures on Exhaust Gas Emissions from a 4-Stroke Engine in Motorcycle Matic Listiyono Listiyono; Muhammad Afif Bahrain; Eko Yudiyanto
JOURNAL OF SCIENCE AND APPLIED ENGINEERING Vol 5, No 2 (2022): JSAE
Publisher : Widyagama University of Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31328/jsae.v5i2.4037

Abstract

Bioethanol is an alternative fuel to substitute fossil oil. Bioethanol has several advantages in its use as a fuel in addition to its renewable nature, and bioethanol is also believed to reduce some motor vehicle emissions. The purpose and objective of this study were to determine the effect of a mixture of Bioethanol and Pertamax on gas emissions in a 4-stroke motor with variations in the fuel mixture and engine cycle. This test method is carried out with the measurement parameters of CO, HC, CO2, and O2. Tests on motor vehicles were carried out with variations of BP0 (0% Bioethanol) to BP100 (100% Bioethanol). The test results using a gas analyzer and analyzed using excel show that bioethanol cannot reduce exhaust gas emissions. Adding bioethanol fuel to Pertamax can also increase the fuel's octane number (RON) and specific gravity. From the available data, adding bioethanol can reduce HC emission levels by up to 4ppm at BP50 at 6000 rpm, increasing CO2 emissions by 13.4% at BP50 at 7000 rpm with a compression ratio of 13:1. For the lowest O2 emission level, it reaches 0.13%. at BP40 at 5000 rpm. CO emission levels are still relatively small in various mixtures with a yield of 0.01%, but at BP0 and BP80 at 13:1 compression, emissions tend to increase every rpm.
Pengurangan Kadar Gas Buang Mesin Bensin 4 Silinder Dengan Metode Campuran Octane Booster Reza Setiawan; Listiyono Listiyono
JURNAL APLIKASI DAN INOVASI IPTEKS "SOLIDITAS" (J-SOLID) Vol 5, No 2 (2022): Jurnal Aplikasi Dan Inovasi Ipteks SOLIDITAS
Publisher : Badan Penerbitan Universitas Widyagama Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31328/js.v5i2.4052

Abstract

Kebutuhan manusia terhadap bahan bakar setiap tahunnya sangatlah bertambah banyak, termasuk juga emisi gas buang yang di hasilkan .Tujuan dalam penelitian ini sebagai penentu dalam mengurangi emisi gas buang yang di hasilkan dari kendaraan bermotor. Cara ini dapat mengurangi polusi udara sehingga udara yang dihirup tidak terlalu bahaya bagi kesehatan. Metode penelitian yang di gunakan merupakan metode exprimen dengan pengolahan data menggunakan duo factorial yang mengetahui pengaruh variabel bebas terhadap variabel terikat yang di tentukan. Penambahan Octane booster cair kedalam bahan bakar shell super berpengaruh terhadap nilai emisi gas buang HC,CO dan CO2 pada kendaraan Innova. kesimpulan bahwa dengan campuran sebanyak 2,5% meghasilkan gas HC terendah dan yang tertinggi di hasilkan oleh campuran 1,6%. Kadar emisi gas buang CO dengan campuran 2,5% menghasilkan gas CO yang terendah dan campuran 1,6% octane booster menghasilkan CO tertinggi. Kadar emisi gas CO2 yang terkecil dihasilkan oleh bahan bakar shell super murni tanpa campuran sedangkan CO2 terbesar dihasilkan oleh campuran 3% octane booster cair.
Analisis pengaturan sudut pengapian dan durasi injeksi terhadap torsi motor bensin 2013 volume 2000 cm3 M. Bayu Satrio Widjatmiko; Listiyono Listiyono
Hexatech: Jurnal Ilmiah Teknik Vol. 2 No. 2 (2023): Hexatech: Jurnal Ilmiah Teknik
Publisher : ARKA INSTITUTE

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Abstract

Tujuan dari penelitian ini yaitu untuk mengetahui apakah ada pengaruh yang signifikan dengan dilakukannya kalibrasi atau remapping ECU standar pabrikan terhadap daya dan torsi pada motor bensin 4 silinder 2000 cc. Penelitian ini menggunakan metode desain eksperimental. Variabel bebas dalam penelitian ini adalah remapping sudut pengapian dan durasi injeksi. Variabel terkontrol pada penelitian ini adalah putaran mesin 2000, 2500, 3000, 3500, 4000, 4500, 5000, 5500, dan 6000 yang diterapkan pada saat pengujian daya dan torsi. Sedangkan variabel terikat pada penelitian ini adalah Daya dan Torsi. Hasil penelitian diperoleh nilai data daya tertinggi sebesar 124,56 HP dicapai pada rpm 5500 saat menggunakan ECU standar, sedangkan daya tertinggi setelah remapping ECU adalah 128,76 HP dicapai pada rpm 5500, artinya terdapat peningkatan daya sebesar 4,2 HP. Untuk nilai data torsi tertinggi saat menggunakan ECU standar sebesar 173,79 Nm dicapai pada rpm 4000, sedangkan ECU remapping menghasilkan torsi sebesar 178,35 Nm dicapai pada rpm 4000, artinya terdapat peningkatan torsi sebesar 4,56 Nm.
Analisis penggunaan minyak nabati dicampur dengan cairan pengental oli terhadap getaran shock absorber motor matic Aditya Triwanto; Listiyono Listiyono
Hexatech: Jurnal Ilmiah Teknik Vol. 2 No. 2 (2023): Hexatech: Jurnal Ilmiah Teknik
Publisher : ARKA INSTITUTE

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Abstract

Tujuan penelitian ini untuk mengetahui seberapa besar pengaruh pengunaan minyak nabati yang dicampur dengan cairan pengental oil sebagai pengisi terhadap kecepatan getaran shock absorber. Pengujian dilakukan dengan menggunakan alat uji beban jatuh seberat 50 kg dari ketinggian 20 cm, 25 cm, 30 cm, dan kecepatan getaran di ukur menggunakan alat vibration meter yang menempel pada shock absorber kemudian untuk mengukur viskositas fluida menggunakan viskometer kinematik. Metode yang digunakan pada penelitian ini menggunakan metode eksperimen. Dimana untuk mengetahui hasilnya dilakukan pengumpulan data dan analisis data secara langsung dengan mengatur ketinggian beban dan jenis minyak nabati yang telah dicampur dengan cairan pengental untuk digunakan sebagai pengisi shock absorber. Hasil dari penelitian ini adalah adanya pengaruh terhadap kecepatan getaran pada shock absorber dengan perbedaan nilai vikositas dari masing-masing jenis minyak nabati yang digunakan serta variasi ketinggian beban jatuh.
Analisis pengaturan sudut pengapian dan durasi injeksi terhadap torsi motor bensin volume 2000 cm3 Muhammad Bayu Satrio Widjatmiko; Listiyono Listiyono
Nautical : Jurnal Ilmiah Multidisiplin Indonesia Vol. 2 No. 8 (2023): Nautical: Jurnal Ilmiah Multidisiplin Indonesia
Publisher : ARKA INSTITUTE

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55904/nautical.v2i8.995

Abstract

Perkembangan teknologi di bidang otomotif mendorong masyarakat untuk menciptakan berbagai inovasi salah satunya alat transportasi yaitu kendaraan Multi Purpose Vehicle (MPV). Tujuan penelitian ini yaitu untuk mengetahui apakah ada pengaruh yang signifikan dengan dilakukannya kalibrasi atau  remapping ECU standar pabrikan terhadap torsi pada motor bensin 4 silinder 2000 cm3.Penelitian ini menggunakan metode desain eksperimental. Variabel bebas dalam penelitian ini adalah remapping sudut pengapian (std, std +2˚, std +4˚) dan durasi injeksi (std, std +2 Ms, std +4 Ms). Hasil penelitian diperoleh nilai sudut pengapian std +2˚ dan durasi injeksi std +2 Ms merupakan variasi yang menghasilkan torsi paling optimal yaitu sebesar 176 Nm. Pada sudut pengapian std +4˚ dan durasi injeksi std +2 Ms; sudut pengapian std +2˚ dan durasi injeksi std +4Ms; sudut pengapian std +4˚ dan durasi injeksi std +4 Ms, nilai torsi yang dihasilkan cenderung menurun.