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All Journal Majalah Kesehatan FKUB Bina Teknika Kumawula: Jurnal Pengabdian Kepada Masyarakat Medika Kartika : Jurnal Kedokteran dan Kesehatan Journal of the Indonesian Medical Association : Majalah Kedokteran Indonesia Andalas obstetrics and gynecology journal Jurnal Kesehatan Pasak Bumi Kalimantan International Journal of Multidisciplinary: Applied Business and Education Research Journal of Community Engagement Research for Sustainability Jurnal Pengabdian Kepada Masyarakat Mulawarman Indonesian Journal of Cancer Greenation International Journal of Engineering Science Greenation International Journal of Engineering Science Proceeding Mulawarman International Conference on Tropical Public Health
Saputra, Rudi
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Aerospace Engineering Humanities Automotive Engineering Biochemistry, Genetics & Molecular Biology Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Dentistry Economics, Econometrics & Finance Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Immunology & microbiology Industrial & Manufacturing Engineering Mechanical Engineering Medicine & Pharmacology Nursing Public Health Social Sciences Veterinary Other

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Journal : Greenation International Journal of Engineering Science

 1 
Comparative Analysis Of 95MXC and SS420 Coatings Using Wire Arc Spray Method On Hardness and Microstructure Result Saputra, Rudi; Abid Alfarizi, Muhammad
Greenation International Journal of Engineering Science Vol. 2 No. 1 (2024): (GIJES) Greenation International Journal of Engineering Science (March 2024)
Publisher : Greenation Research & Yayasan Global Resarch National

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.38035/gijes.v2i1.167

Abstract

Material coating technology is a method that is often applied to improve the mechanical properties and characteristics of a material. The materials often used in the coating process are metal materials, including medium carbon steel such as AISI 1045, which is often used as machine parts, light pressure gears, pinion forming dies, hydraulic shafts, pump shafts, piston rods. Coating materials vary greatly, this is adjusted to suit needs, such as the SS420 and 95MXC materials used because they have quite high wear resistance and corrosion resistance properties. The composition of the coating material and the strong current in the coating process can affect the quality of the coating results formed on the material. In this research, we will determine the wire with the best results using the wire arc spray method as a coating method to increase the mechanical properties of the PLTU boiler using 95 MXC and SS 420 wire. The highest hardness results were obtained for 95MXC wire with a value of 45.98 HRC. Meanwhile, the hardness value for SS420 wire is 33.11 HRC and the results of microstructure observations also show an increase in thickness of the 95MXC layer with a value of 297.99 ?m in line with the increase in hardness of the coating layer, because in a thicker coating layer the coating material particles will spread evenly and denser, thereby increasing the hardness value
Productivity Measurement of Urea Fertilizer Production at PT. X Using The Green Productivity Approach Saputra, Rudi; Pratomo, Andrianto Indra; Sumiyanto, Sumiyanto
Greenation International Journal of Engineering Science Vol. 3 No. 4 (2025): (GIJES) Greenation International Journal of Engineering Science (December 2025
Publisher : Greenation Research & Yayasan Global Resarch National

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.38035/gijes.v3i4.691

Abstract

Productivity is defined as a comparison between the output (Output) and input (Input) in the company which can also be said as the ratio between the amount of output produced and the number of inputs used. The purpose of this research is to measure the productivity and environmental performance of the urea fertilizer production process at PT. X by using the Green Productivity approach. Green Productivity is a method that can be used to increase the level of productivity as well as environmental performance. The first step is to identify the source of the waste from the field study, determine goals and targets, and choose alternative solutions for Green Productivity. Based on the Green Productivity methodology, the alternative solution is selected by calculating the EPI (Environment Performance Indicator) index, and the Green Productivity Index (GPI) for each alternative. From the results of the selection of these alternatives, the best solution that can be proposed for improvement is alternative 1, namely repairing and maintaining the hydrolyzer engine and making hydroelectric turbines. This result is obtained from the calculation of the material, labor, energy, and maintenance indexes which are above 1 which indicates a problem solving by selecting and implementing this alternative as a solution. The material GPI is 1.31, the human GPI is 1.05, the energy GPI is 1.11, the maintenance GPI is 1.01 and the waste GPI is 0.58. Meanwhile, the EPI index of human health is 16.67 and the EPI index of flora and fauna health is 15.23.
Co-Authors Abid Alfarizi, Muhammad Adam, Muhammad Fadlan Adrianto, Ratno Afifi, Azza Ayu Aminuddin, Muhammmad Andriansyah Andriansyah Angelina, Grace Annisa Muhyi Aslamiah Aslamiah Aswad, Fidya Mayastri Ayu Septiani, Ayu Azra, Dieni Bakhtiar, Rahmat Dahnilsyah, Dahnilsyah Endang Sawitri Evi Fitriany Fadilah, Syaiful Fikriah, Ika Guisandro, Johannes Hamri, Ahmad Ahsyar Hariyanto, Agustinus Darmadi Idris, Fagil Rananda Isjoni, Muhammad Yogi Ryantama Iskandar Muda Jesi Alexander Alim Joleha, Joleha Krispinus Duma Lubis, Nadhira Fahrani Mahmud Alpusari Maina, Annin Dya Meiliati Aminyoto muhammad dardi Najla, Syarifah Amira Nanda, A. Luthfiah Nandita, Meylaliazka Rahma Nataniel Tandirogang Neni Hermita Ningrum, Yuliana Kartika Noprianto, Dwi Nurkhalisa, Nina Nurtanio, Setyawan Nuryanto, Muhammad Khairul Pratiwi, Novita Eka Tyas Pratomo, Andrianto Indra Pualillin, Elvis Deddy Kurniawan Putri, Dwika Hanifah Putri, Nabiela Annisa Qahfi, Muhammad Andan Rachman, Syarifah Awwaliyyah Raharjo, Eko Nugroho Rasendriya , Fauzan Firjatullah Ronny Isnuwardana Rukaniya, Nurzilawati Ruslim, Samuel Kelvin Salsabila, Naila Cantika Sanjaya, Regina Anastasia Setyo Nugroho Setyorini, Yulita Pundewi Sihombing, Syeba Sekarini Siti Khairiah, Siti Siti Khotimah Subagio, Kiki Jayapratama Sudarso, Sulistiawati Sunaryo, Muhammad Fitrah Tricindra, Dzulhannisa Ulpah, Rini Wahidatul Ulyah, Rochimah Thul Waruwu, Riama Widjayanto, Arie Yadi Yasir Yudanti Riastiti Zetra Hainul Putra