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All Journal Journal of Energy, Materials, & Manufacturing Technology Jurnal Polimesin
Ilmawan Suryapradana
Politeknik Sinar Mas Berau Coal
Automotive Engineering Control & Systems Engineering Engineering Materials Science & Nanotechnology Mechanical Engineering

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FABRIKASI MATERIALAISI 4140 UNTUK PEMBUATAN BUSHING PADA DRAGBAR MESIN CRUSHER Masbin Dahlan; Ilmawan Suryapradana
Journal of Energy, Materials, & Manufacturing Technology Vol 2 No 01 (2023): Journal of Energy, Materials, & Manufacturing Technology
Publisher : Unit Penelitian, dan Pengabdian Masyarakat (UPPM) Politeknik ATI Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61844/jemmtec.v2i01.278

Abstract

AISI 4140 material is low-alloy steel that is widely used in its applications, which can be seen in automotive axle components. Based on these applications, it can be seen that AISI 4140 material is widely used in components that require high durability and hardness. The use of AISI 4140 in the mining industry is as a sleeve for the crusher unit drawbar. The sleeve material must go through a production process in the form of turning until it reaches the required dimensions. Case components must be durable and strong (with a long life) so that they do not hinder the production process in a company such as a coal company. Planning and using equipment and choosing the right materials can minimize production costs and speed up processes. This method can save production costs because it can reduce the 800 bushels per year needed in the mining area. This study aims to determine the factors that affect the performance of the case to increase the work efficiency of the crushing unit and reduce downtime due to damage to the case.
Experimental investigation of seawater volume effect on the performance of a corrugated-V absorber solar still Arfan Halim; Ilmawan Suryapradana; Adit S; Abraham P
Jurnal Polimesin Vol 24, No 2 (2026): April
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jpl.v24i2.8485

Abstract

Limited access to clean water in coastal and remote areas has spurred the development of simple desalination technologies powered by renewable energy. This study analyzes the effect of seawater volume variation on the performance of a solar distillation system employing a corrugated-V absorber plate at a 40° tilt angle. The absorber plate was fabricated from aluminum and coated with matte black paint to enhance solar radiation absorption. Experimental tests were conducted under natural solar radiation conditions with seawater volumes of 5L, 6L, and 7L from 09:00 to 16:00 local time. The observed parameters included estimated solar radiation intensity, absorber plate temperature, basin water temperature, system efficiency, and condensate production. The results indicate that seawater volume significantly influences the thermal characteristics and productivity of the solar still. Among the tested variations, the 6L volume showed the best performance, achieving an average efficiency of 40.54% and a maximum condensate yield of 0.36L. At 5L, the available thermal energy was not effectively utilized, whereas at 7L, the increased water mass resulted in slower heating and evaporation rates. These findings demonstrate that appropriate selection of seawater volume plays an important role in enhancing the performance of solar distillation systems equipped with corrugated-V absorber plates under real outdoor operating conditions.
Co-Authors Abraham P Adit S Arfan Halim Masbin Dahlan