Article Per Year (5 Year)
p-Index From 2021 - 2026
0.61
P-Index
This Author published in this journals
All Journal Jurnal Teknik Mesin Journal of Renewable Energy and Mechanics
Kurniadi, Shandy
Unknown Affiliation
Aerospace Engineering Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Engineering Industrial & Manufacturing Engineering Mechanical Engineering Social Sciences

Published : 3 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 3 Documents
Search

 1 
Design and Construction of a Pineapple Skin Cutting Machine with a Pneumatic Actuator Drive Powered by a Solar Module with a Capacity of 200 WP Arizona, Rafil; Kurniadi, Shandy
Jurnal Teknik Mesin (Journal Of Mechanical Engineering) Vol 14, No 1 (2025)
Publisher : Universitas Mercu Buana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22441/jtm.v14i1.25515

Abstract

The main objective of this research is to carried out the design of a pineapple cutting machine with a pneumatic actuator powered by a solar module with a capacity of 200 WP. The research methods used are literature study and experimental laboratory. The laboratory experimental method is very suitable to be applied to post-harvest agricultural machines with a small capacity where the research is only focused on the success of the actuator system in carrying out pineapple cutting movements automatically by utilizing pressurized air coming from the compressor. The variation in air pressure for the pneumatic actuator is set at the air pressure, namely 3, 4, and 5 Bar. The actual peeling capacity using air pressure of 3 Bar resulted in 160 pineapple cutting/per hour, 170 fruit/per hour for 4 Bar, 173 bar for 5 bar, and 173 fruit/per hour manually.
THE EFFECT OF VARIATION OF MIXTURE OF IJUK FIBER AND COCONUT FIBER WITH EPOXY MATRIX ON THE MECHANICAL STRENGTH OF COMPOSITE Li, Elia Fransisco Manalu; Yulianto, Dody; Kurniadi, Shandy; Prasetyo, Ari; Saragih, Sehat Abdi; Lazrisyah, Sutan; Rahman, Jhonni; Hastuti, Kurnia; Elfiano, Eddy
Journal of Renewable Energy and Mechanics Vol. 8 No. 02 (2025): REM VOL 8 No 02 2025
Publisher : UIR PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Fibre-based composites continue to be investigated and developed as alternative materials to replace metals, primarily due to their advantageous properties of high strength and lower weight compared to metals. This study aims to fabricate fibre composites using ijuk fibres and coconut coir fibres as a matrix with epoxy resin. In this research, mixtures of ijuk fibres, coconut coir fibres, and epoxy resin were prepared in proportions of 20%:30%:50%, 25%:25%:50%, and 30%:20%:50%. The highest bending strength test results were obtained in specimen 3, which consisted of a mixture of 30% palm fibre, 20% coconut fibre, and 50% epoxy resin.  This specimen had a tensile strength value of 18.93 MPa and an impact value of 0.387 Joules/mm². This result can be attributed to the increasing proportion of ijuk fibres and the decreasing proportion of coconut coir fibres within the epoxy resin matrix, which influences the elastic strain of the fibre core (cellulose). The higher cellulose content of ijuk fibres enhances bending strength and impact resistance. This is supported by the impact (Charpy) test results, where specimen 3 (30%: 20%:50%) exhibited the highest bending and impact strength. Conversely, increasing the proportion of coconut coir fibres reduced the impact strength. The fracture morphology revealed that specimen 1 exhibited a brittle fracture, whereas specimens 2 and 3 exhibited a fibrous brittle fracture.
Effect of hydraulic pneumatic pressing pressure on the physical quality and production performance of gambier Septian; Rahman, Jhonni; Kurniadi, Shandy; Abd Rahman, Hamimah; Rosli, Masli Irwan
Journal of Renewable Energy and Mechanics Vol. 9 No. 02 (2026): REM VOL 9 No 02 2026
Publisher : UIR PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25299/rem.2026.29189

Abstract

Gambier (Uncaria gambir Roxb.) is an important Indonesian plantation commodity whose physical quality and processing productivity are strongly influenced by the pressing stage. This study evaluated the effect of hydraulic–pneumatic operating pressure on gambier pressing performance and physical characteristics. We conducted experiments at five pressure levels (1, 3, 5, 7, and 8 bar), using an initial material mass of 5 kg for each test. We calculated the following parameters: pressing force, product density, estimated production capacity, wet-basis moisture content after pressing, and water removal during pressing. Pressures of 1 and 3 bar were insufficient to form a compact product. Within the effective range of 5–8 bar, increasing pressure increased product density from 1162.67 to 1270.40 kg/m³ and estimated production capacity from 14.88 to 23.42 kg/h. The calculated pressing force increased from 491.07 N at 5 bar to 785.71 N at 8 bar. Water removal based on the initial mass increased from approximately 0.60% at 5 bar to 5.00% at 8 bar. Among the tested conditions, 8 bar provided the best overall performance. However, because we did not evaluate pressures above 8 bar or energy consumption, this condition should be regarded as the best tested pressure rather than a globally optimised operating point.  
Co-Authors Abd Rahman, Hamimah Ari Prasetyo Arizona, Rafil Eddy Elfiano Hastuti, Kurnia Jhonni Rahman Lazrisyah, Sutan Li, Elia Fransisco Manalu Rosli, Masli Irwan Sehat Abdi Saragih Septian Yulianto, Dody