Alfeus Sunarso

Alfeus Sunarso
Politeknik Negeri Pontianak | POLNEP · Mechanical Engineering

Ph.D

About

21
Publications
3,724
Reads
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144
Citations
Additional affiliations
April 2010 - present
Politeknik Negeri Pontianak
Position
  • Lecturer
April 2007 - March 2010
Kochi University of Technology
Position
  • Research Associate
April 2001 - March 2007
Osaka University
Position
  • Graduate Student (Master & Doctoral)
Education
April 2004 - March 2007
Osaka University
Field of study
  • Mechanophysics Engineering
April 2002 - March 2004
Osaka University
Field of study
  • Mechanophysics Engineering
August 1992 - August 1998
Universitas Gadjah Mada
Field of study
  • Mechanical Engineering

Publications

Publications (21)
Article
Full-text available
A reliable tool for site-suitability assessment of solar power plants capable to account for the protection of cultural, natural, and ecological conservation areas is proposed. The tool integrates an Analytic Hierarchy Process (AHP) based Multi Criteria Decision Analysis (MCDA) algorithm into a Geographical Information System (GIS) package, which c...
Article
Full-text available
This paper presents a technical and economic feasibility assessment of utility-scale solar photovoltaic (PV) plants in the West Kalimantan Province of Borneo, which is essential for boosting the development of solar PV plants in Indonesia. The assessment was performed based on a previously developed geographical information systems (GIS) package th...
Preprint
Full-text available
A reliable tool for site-suitability assessment of solar power plants capable to account for the sustainable development and protection of cultural and biodiversity conservation areas is proposed. We present a novel Analytic Hierarchy Process (AHP) based approach for the Multi-Decision Criteria Analysis (MDCA) of SSI satellite retrieved data and lo...
Article
Emulsi CPO-air merupakan aliran dua fase yang tidak dapat menyatu dan bila dialirkan dalam pipa akan membentuk pola aliran. Pemisahan fase cair-cair dilakukan pada pola aliran strata (stratified) yang terbentuk dalam pipa horizontal. Pemisahan fase cair-cair dilakukan pada sistem horizontal t-junction. Tujuan penelitian ini untuk memperoleh pemisah...
Article
Full-text available
p> Penelitian ini bertujuan untuk mendukung pengembangan Pembangkit Listrik Tenaga arus sungai, untuk mendapatkan kedalaman sudu kincir yang paling optimal pada berbagai kecepatan arus sungai. Penelitian ini dilakukan pada skala laboratorium dengan menggunakan peralatan uji unjuk kerja kincir air di Laboratorium Teknik Mesin Politeknik Negeri Ponti...
Article
Full-text available
The dynamic responses of nematic liquid crystals in a parallel-plate cell under the application of electric fields were investigated using three-dimensional molecular dynamics simulations, which should provide more precise dynamics as compared to those in two-dimensional molecular dynamics simulations as in our previous work [Sunarso et al., Appl....
Article
We have developed a GPU-based molecular dynamics simulation for the study of flows of fluids with anisotropic molecules such as liquid crystals. An application of the simulation to the study of macroscopic flow (backflow) generation by molecular reorientation in a nematic liquid crystal under the application of an electric field is presented. The c...
Article
Molecular dynamics simulations of backflow in nematic liquid crystals confined between a parallel plates cell was performed, and the effects of electric field strength and temperature were investigated. Under the application of electric fields, transient velocity fields are generated as the result of molecular reorientation. The magnitude of veloci...
Article
Full-text available
The mechanism of backflow generation in nematic liquid crystals under the application of an electric field is investigated by molecular dynamics simulation, and the roles of intermolecular interaction in the generation of bulk velocity are investigated. It is confirmed that the reorientation of molecules by the application of an electromagnetic fie...
Article
As a fundamental research on the development of liquid crystalline micro actuators, experiments on the liquid crystalline actuator have been performed using a hybrid cell. The nematic liquid crystalline material, 5CB, is placed between two parallel glass plates. The lower glass plate is fixed, and the upper glass plate can move freely. Pulsed volta...
Article
A constitutive equation has been derived Brownian dynamics model of reversible network of FENE dumbbells. In this model, network of polymer molecules is modeled into two fractions (active and dangling) of dumbbells, while creation and destruction of network junctions are represented by association and dissociation processes. We show that with appro...
Article
Full-text available
In our previous work, we have improved the reversible network model proposed by Cifre and co-workers, and performed a Brownian dynamics simulation to investigate the capability of the model in predicting the shear and elongational properties of non-associative polymeric fluids. In the present work, the capability of the improved model in predicting...
Article
Full-text available
We performed numerical simulation to investigate the effects of wall slip on flow behaviors of Newtonian and non-Newtonian fluids in macro and micro contraction channels. The results show that the wall slip introduces different vortex growth for the flow in micro channel as compared to that in macro channel, which are qualitatively in agreement wit...
Article
Numerical simulation has been performed to investigate the effects of wall slip on the flow behaviors of polymeric flows in the macro and micro contraction channels. The wall slip introduces different vortex growths for the flows in macro and micro channels. With the change in average shear rate, the various slip models introduce different slip vel...
Article
Full-text available
The flow of polymer melt in contraction channels with cylindrical barriers was numerically simulated. A commercial LDPE melt was considered, and the rheological property of the melt was represented using the Extended Pom-Pom model (XPP). The simulation was performed with various barrier configurations, and the effects of the barriers were investiga...

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Projects

Projects (2)
Project
This project is aimed to develop an integrated Geographic Information System for an accurate setting of surface solar irradiance maps (SSI) provided by the World Bank Group and other GIS and satellite raster databases, merging local sources of information provided by local stakeholders, which will enable the further consideration of vulnerability zones. The output of the projects should provide decision tools for government and industry sectors, aiming the planning of large-scale solar power plants in the West Kalimantan area (Indonesia).
Project
This project is aimed to develop an integrated Geographic Information System for an accurate setting of surface solar irradiance maps (SSI) provided by the World Bank Group and other GIS and satellite raster databases, merging local sources of information provided by local stakeholders, which will enable the further consideration of vulnerability zones. The output of the projects should provide decision tools for government and industry sectors, aiming the planning of large-scale solar power plants in the West Kalimantan area (Indonesia). This project is supported by the Institutional Links grant 413871894, under the Newton Fund Indonesia partnership. The grant is funded by the UK Department for Business, Energy and Industrial Strategy and the Indonesian Ristekdikti (Kementerian Riset Teknologi, dan Pendidikan Tinggi - Ministry of Research, Technology, Higher Education), and delivered by the British Council. To carry out the project, we invite researchers with Master or Doctoral degree in Geographic Information Systems, Information Technology, Computer Science, Physics, Engineering or any other relevant subject to apply for Research Assistant / Research Associate (3 positions) that will be based in Pontianak, Indonesia. The positions are full-time positions with fixed term contract for 12 months. The salary is ranging form Rp 184,000,000 (IDR) to Rp 277,000,000 (IDR) per annum depending on the level experience and qualifications. For further information, please contact: Dr Harold S. Ruiz, dr.harold.ruiz@leicester.ac.uk Dr Alfeus Sunarso, alfnarso@yahoo.com