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All Journal Jurnal Teknik Mesin Jurnal Teknik ITS IPTEK The Journal of Engineering IPTEK Journal of Proceedings Series IPTEK The Journal for Technology and Science Jurnal Teknik Kimia Journal of Engineering and Technological Sciences Journal of Energy, Mechanical, Material and Manufacturing Engineering Sewagati

Gunawan Nugroho

Department Of Engineering Physics, FTI, Institut Teknologi Sepuluh Nopember, Kampus ITS Sukolilo, Surabaya 60111

Author-ID : 333292

Aerospace Engineering Humanities Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Education Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Social Sciences

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Simulation Bursting Effects To The Performance Vertical Axiz River Turbine Using Computational Fluid Dynamics Aank Suseno; Ridho Hantoro; Gunawan Nugroho
IPTEK Journal of Proceedings Series No 1 (2015): 1st International Seminar on Science and Technology (ISST) 2015
Publisher : Institut Teknologi Sepuluh Nopember

Turbulent flow in the open channel, often exhibit a phenomenon bursting in expansion or inhibition case. This phenomenon disturbing to the flow at the turbine area. In this study, Research to analyze the occurrence of interference bursting in the river turbine area, done by simulating the river flow with a variety of depths ratio y/L, using vertical turbine NACA 0018 in a trapezoidal channel, with k-ԑ turbulence models in CFD. From the simulation results the smaller ratio of the depth y/L, the force of turbulence flow (bursting flow) at the turbine increases.

Analysis of Spatial Characteristic of Maritime Weather in Java Sea Rachmad Andri Atmoko; Aulia Siti Aisjah; Gunawan Nugroho
IPTEK Journal of Proceedings Series No 1 (2015): 1st International Seminar on Science and Technology (ISST) 2015
Publisher : Institut Teknologi Sepuluh Nopember

Sea transportation continuity is mainly affected by the sea weather. The sea voyage may be disturbed by the unpredictable weather pattern. The rate of shipping accident that is caused by the bad weather shows a high percentage. Accordingly, the study of java sea wave characteristic is required. The java sea waters especially in the north side of Java Island, between Surabaya, Semarang Banjarmasin and Makassar is one of the most dense shipping lanes in Indonesia. Several big harbors such as tanjung perak of Surabaya and tanjung emas of Semarang serve high frequency of stevedoring and passenger loading/unloading. In previous researches, the sea weather predictor of java sea waters is still temporal. In this research, numerical modeling of SWAN is used to models the sea wave propagation direction and significant height of the wave in java sea waters. This model uses the concept of spectral energy balance to describe physical interaction that happened in the sea. Two scenarios are applicated in this simulation. in the first scenario, the input of wind speeds are given from 4 direction (west, north, east and south), while in the second scenario, the wind speeds are given according to the character of seasonal winds of the research object area.

Waste Power Plant Modeling Based Landfill Pretreatment and HCCI (Homogeneous Charge Compression Ignition) Generator Engine Wahyu Hendra W; Gunawan Nugroho
IPTEK Journal of Proceedings Series No 1 (2015): 1st International Seminar on Science and Technology (ISST) 2015
Publisher : Institut Teknologi Sepuluh Nopember

Waste management is cruisal problem for major cities in all countries. Technically, MSW (Municipal Solid Waste) biological processes can be converted into LFG (landfill Gas), which can be used as an energy source for electricity generation. LFG utilization as fuel for power generation is also supported by the presence of motor fuel engines based HCCI (Homogeneous Charge Compression Ignition). To ensure the successful adoption of waste power plan based HCCI engine-generator, in the form of mathematical modeling studies of biogas production in a region need to be done carefully. The formulation waste power plant models with engine HCCI, is based on the reference model and reference experimental results of each part in the power plant waste that includes, production of biogas from landfill, biogas filter, generator power conversion HCCI. The production of biogas from landfills using multicomponent models, biogas filter using a filter system with a suspension of dolomite, and for the conversion of electricity using a generator HCCI referring to the results of experiments that has been conducted by Bedoya,2012. Waste power plant modeling result shows, if power output 3.725 .10-3 of capacity HCCI engine fuel consumption.

Co-Authors Aank Suseno Abdurrahman Rahyang Tutuko Adhana Tito Hary Wibowo Adia Cahya Purnama Agung Dwi Sulaksono Agus Imam Sonhaji Agus Imam Sonhaji, Agus Imam Agus Muhammad Hatta Akhmad F. Alhikami Akhmad F. Alhikami, Akhmad F. Aulia Muhammad Taufiq Nasution Aulia Siti Aisjah Detak Yan Pratama Eka Puji Kurniawan Halen Dinata Atmaja Hamidah, Nur Laila Herman Sasongko Heru Mirmanto Hudiyo Firmanto, Hudiyo Iwan Cony Setiadi, Iwan Cony Joko Waluyo Kadek Chestha Amrita Masrufaiyah Masrufaiyah Mohammad Adenan Ni Putu Rika Puspita Dewi Ola Dwi Sandra Hasan Putu Angga Kristyawan Rachmad Andri Atmoko Raditya, Murry Ridho Bayuaji Ridho Hantoro Ruri Agung Wahyuono Sangadji, Anisa Sarwono SATRIYAS ILYAS Sekartedjo Sekartedjo Totok R Biyanto Totok R. Biyanto Totok R. Biyanto Totok Soehartanto Wahyu Hendra W Yusuf Wibisono Zaini, Ahmad

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