Article Per Year (5 Year)
p-Index From 2020 - 2025
0.61
P-Index
This Author published in this journals
All Journal International Journal of Marine Engineering Innovation and Research Jurnal Mekanik Terapan Jurnal Inovasi Teknologi dan Edukasi Teknik
I Wayan, Marlon Managi
Politeknik Negeri Bali
Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Decision Sciences, Operations Research & Management Electrical & Electronics Engineering Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Physics Transportation

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

Found 3 Documents
Search

 1 
Perancangan Sudu Turbine Expander Menggunakan Profil NACA 0018 Dengan Program Cascade dan CFD I Marlon Managi
Jurnal Inovasi Teknologi dan Edukasi Teknik Vol. 3 No. 2 (2023)
Publisher : Universitas Ngeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17977/um068v3i22023p92-98

Abstract

Research and development of the Organic Rankine Cycle (ORC) is becoming increasingly intense for converting heat into electricity. Many heat sources are available such as: solar radiation, biomass combustion, heat waste from factory and geothermal. Radial turbine is chosen for Organic Rankine Cycle due to its simple structure, components availability, and ease of application on a small power plant scale. The efficiency of the cycle is highly dependent on the design of the radial turbine. This study aims to obtain a turboexpander design with the utilization of NACA0018 airfoil as a stator. Optimization of stator blade with direct analysis method using "Cascade" program to obtain optimal inlet and outlet angle. From the simulation, the efficiency of the turboexpander was 65.13 percent with an output power of 6,513 kW. Radial turboexpander that works at an inlet pressure of 3 bar and a rotational speed 9000 rpm using the NACA0018 profile stator, obtained results where fluids flow in the rotor with shock free conditions and no swirl occurs. Penelitian dan pengembangan Siklus Rankine Organik (ORC) menjadi semakin intens untuk menkonversi panas menjadi listrik. Sumber panas yang beragam seperti: radiasi matahari, pembakaran biomassa dan pemanfaatan panas dari limbah panas pabrik, maupun panas bumi. Pemilihan turbin radial untuk siklus Rankine organik dikarenakan struktur yang sederhana, ketersediaan komponen, dan kemudahan aplikasi pada skala pembangkit listrik kecil. Effisiensi dari siklus sangat bergantung pada desain turbine radial. Studi ini dilakukan untuk memperoleh desain turboexpander dengan pemanfaatan airfoil NACA0018 sebagai stator. Optimasi sudu stator dengan metoda direct analysis menggunakan program “Cascade” untuk mendapatkan sudut inlet dan outlet yang optimal. Dari simulasi diperoleh hasil effisiensi dari turboexpander sebesar 65,13 persen dengan daya keluaran sebesar 6,513 kW.  Turboexpander radial yang bekerja pada tekanan inlet 3 bar dan kecepatan rotasional 9000 rpm dengan menggunakan stator profil NACA0018, didapat hasil dimana aliran fluida pada rotor dengan kondisi shock free dan tidak terjadi swirl.
Design and Performance Testing of a 3D Printed Mini DC Powered Pump for Microbubble Generator Tulus Hidayat Yusanto; James Julian; Fitri Wahyuni; Adi Winarta; I Wayan M. Managi Marlon Managi
International Journal of Marine Engineering Innovation and Research Vol 8, No 4 (2023)
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j25481479.v8i4.18826

Abstract

Centrifugal pumps are the most commonly utilized in industries, agriculture, and households. In the microbubble generator, the centrifugal pump is driven by a DC motor for efficiency. This research was conducted to determine the optimal centrifugal pump design for microbubble generators using 3D-printed PLA material. The pump drive uses a brushless DC motor. With impeller dimensions r1=16mm, r2=26mm, β1=46.8, β2=62.8, and number of blades = 8, the resulting head is 2m at a constant operational current of 3A and a flowrate of 0 L/m. The same operational current input yields a maximum flow rate of 14 L/min with a head of 0.5 m. Maximum head exists when there is no liquid on the outlet side. At current ≥ 6.5A, there is a deviation from the previously formed trend. The input power of 58W is generated when the maximum flow rate is 25L/m. Maximum efficiency can be achieved as the input current increases to ≤6.5A and 18L/m. At conditions ≥6.5A, efficiency decreases drastically as the input current increases. This centrifugal pump design can work optimally at a constant input current of 6.5A with an input power 58W for the microbubble generator.
Tablet Pemurni Air Yang Terkontaminasi Logam Berat Dengan Memanfaatkan Limbah Kerang Darah (Tegillarca Granosa) I Wayan, Marlon Managi; Arsani, Ida Ayu Anom; Wimargamal, Natan
Jurnal Mekanik Terapan Vol 6 No 2 (2025): Agustus 2025
Publisher : Politeknik Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32722/jmt.v6i2.7536

Abstract

Water pollution caused by heavy metals such as lead (Pb) poses a serious threat to both environmental and human health. One promising solution involves the use of natural materials derived from organic waste as adsorbents, such as blood clam shells (Tegillarca granosa), which are rich in calcium carbonate (CaCO₃) and exhibit high potential following calcination. This study aims to evaluate the effect of calcination temperature variation on the adsorption efficiency of clam shells in tablet form for Pb²⁺ ions. The calcination process was conducted at temperatures of 400°C, 650°C, and 900°C for 2 hours each, following an initial drying stage at 150°C for 1 hour. The resulting calcined powder was ground, sieved, and compressed into tablets using a mechanical pressure of 150 N. Adsorption tests were carried out using a Pb solution with a concentration of 38.9 ppm for 1 hour, and the residual concentration was analyzed using Atomic Absorption Spectrophotometry (AAS). The results showed that calcination at 400°C yielded the highest adsorption efficiency at 99.3%, followed by 650°C (99.1%) and 900°C (98.4%). These findings indicate that calcination temperature significantly influences the characteristics and performance of the adsorbent, highlighting the potential of calcined blood clam shell waste as an effective and sustainable alternative for removing heavy metal contaminants from polluted water.
Co-Authors Adi Winarta, Adi Arsani, Ida Ayu Anom Fitri Wahyuni James Julian Tulus Hidayat Yusanto Wimargamal, Natan