cover
Article Per Year (5 Year)
All
Home Page
OAI Link
Editorial Team
Contact
Reviewer
Google Scholar
Contact Name
-
Contact Email
-
Phone
-
Journal Mail Official
-
Editorial Address
-
Location
Kota surabaya,
Jawa timur
INDONESIA
IPTEK The Journal for Technology and Science
Published by Institut Teknologi Sepuluh Nopember Surabaya
ISSN : 08534098     EISSN : 20882033     DOI : -
Core Subject : Science,
Computer Science & IT
IPTEK The Journal for Technology and Science (eISSN: 2088-2033; Print ISSN:0853-4098), is an academic journal on the issued related to natural science and technology. The journal initially published four issues every year, i.e. February, May, August, and November. From 2014, IPTEK the Journal for Technology and Science publish three times a year, they are in April, August and December in online version.
Arjuna Subject : -
Articles 3 Documents
 1 
Search results for , issue "Vol 27, No 1 (2016)" : 3 Documents clear
Study And Modeling Of Energy Supply At Moti Island-Ternate Based On Renewable Energy Kahar, Bahrud; Hantoro, Ridho
IPTEK The Journal for Technology and Science Vol 27, No 1 (2016)
Publisher : IPTEK, LPPM, Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (785.547 KB) | DOI: 10.12962/j20882033.v27i1.1186

Abstract

Until now in North Moluccas province especially in the district of Ternate city due to geographical conditions, electrification for the islands outside of Ternate be uneven and can not meet the overall demand for electricity. As well as Moti Island is one of the sub-districts of Ternate city, the operation of diesel generators was limited at night which hours 18:30 to 23:00 or 4.5 hours/day. The main problem is the high operating cost of diesel generator, especially of the fuel cost, availability and the high cost of spare parts. This study proposes a configuration models of hybrid power generation system on the Moti island between diesel generators and renewable energy as a solution to meet the electricity needs for 24 hours, because the Moti island has a energy of annual average solar  radiation is 5.96 kWh/m2/day and annual average wind speed of  3.8 m/s. Calculation and optimized for the potential of renewable energy and configurations models of hybrid power generation system using software HOMER (Hybrid Optimization Model for Renewable Energy). The simulation results provide a configuration models of the optimal hybrid power plant is the first option: PV (50%) + Diesel (50%) configuration with the NPC lowest value is US$ 1,531,546 and more efficient fuel consumption per year is 47.1% of the fuel consumption on the moti island for this time, And the second option is an alternative configuration: PV (70%) + Diesel (30%) configuration with a NPC value is US $ 1,577,512 and also more has efficient fuel consumption per year 64.3%.
A Review of Solar-Powered Boat Development Kurniawan, Adi
IPTEK The Journal for Technology and Science Vol 27, No 1 (2016)
Publisher : IPTEK, LPPM, Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (213.452 KB) | DOI: 10.12962/j20882033.v27i1.761

Abstract

Research in the application of renewable energy has intensified in recent years. The possibility of petroleum extinction in the future is forcing researchers to enhance the utilization of renewable energy resources as substitute for fossil fuel-based technologies in all fields. Ships as one of the most important transportation in the world also require diesel oil as fuel for main propulsion systems and for diesel generators which supply electrical needs. Solar energy has been considered as the most suitable renewable energy resources to substitute the role of fuel in the ships. In this paper, the latest research on the utilization of solar energy in the ship are presented and analyzed to provide information for the researchers who developed the technology of solar-powered boat
Estimation of Total Suspended Sediment and Chlorophyll-A Concentration from Landsat 8-Oli: The Effect of Atmospher and Retrieval Algorithm Lalu Muhamad Jaelani; Resti Limehuwey; Nia Kurniadin; Adjie Pamungkas; Eddy Setyo Koenhardono; Aries Sulisetyono
IPTEK The Journal for Technology and Science Vol 27, No 1 (2016)
Publisher : IPTEK, LPPM, Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (710.683 KB) | DOI: 10.12962/j20882033.v27i1.1217

Abstract

Total Suspended Sediment (TSS) and Chlorophyll-a (Chl-a) are globally knows as a key parameters for regular seawater monitoring. Considering the high temporal and spatial variation of water constituent, remote sensing technique is an efficient and accurate method for extracting water physical parameter. A high accurate estimated data derived from remote sensing depends on an accurate atmospheric correction algorithm and physical parameter retrieval algorithms. In this research, we evaluated the accuracy of atmospheric corrected product of NASA as well as develop algorithms for estimating TSS and Chl-a concentration over Poteran and Gili Iyang island water using Landsat-8 OLI data. The data used in this study was collected from Poteran’s waters (9 stations) on April 22, 2015 and Gili Iyang’s waters (six stations) on October 15, 2015. Low correlation between in situ and Landsat Rrs(λ) (R2= 0.106) indicated that atmospheric correction algorithm performed by NASA has a limitation. The TSS concentration retrieval algorithm produced acceptable accuracy both over Poteran’s Waters (RE of 4.60% and R2 of 0.628) and over Gili Iyang’s waters (RE of 14.82% and R2 of 0.345). Although the R2 lower than 0.5, the relative error was more accurate than the minimum requirement of 30%. Whereas, The Chl-a concentration retrieval algorithm produced acceptable result over Poteran (RE of 13.87% and R2 of 0.416) and failed over Gili Iyang’s waters (RE of 99.140 and R2 of 0.090). The low correlation between TSS or Chl-a measured and estimated TSS or Chl-a concentration were caused not only by performance of the developed TSS and Chl-a estimation retrieval algorithm but also the effect and accuracy of atmospheric corrected reflectance of Landsat product.

Page 1 of 1 | Total Record : 3

 1 

Filter by Year

2016 2016


Reset
Filter By Issues
All Issue Vol 36, No 1 (2025) Vol 35, No 3 (2024) Vol 35, No 2 (2024) Vol 35, No 1 (2024) Vol 34, No 3 (2023) Vol 34, No 2 (2023) Vol 34, No 1 (2023) Vol 33, No 3 (2022) Vol 33, No 2 (2022) Vol 33, No 1 (2022) Vol 32, No 3 (2021) Vol 32, No 2 (2021) Vol 32, No 1 (2021) Vol 31, No 3 (2020) Vol 31, No 3 (2020): In-Press Vol 31, No 2 (2020) Vol 31, No 1 (2020) Vol 30, No 3 (2019) Vol 30, No 2 (2019) Vol 30, No 1 (2019) Vol 29, No 3 (2018) Vol 29, No 2 (2018) Vol 29, No 1 (2018) Vol 28, No 3 (2017) Vol 28, No 2 (2017) Vol 28, No 1 (2017) Vol 27, No 3 (2016) Vol 27, No 2 (2016) Vol 27, No 1 (2016) Vol 26, No 2 (2015) Vol 26, No 1 (2015) Vol 25, No 3 (2014) Vol 25, No 2 (2014) Vol 25, No 1 (2014) Vol 24, No 3 (2013) Vol 24, No 2 (2013) Vol 24, No 1 (2013) Vol 23, No 4 (2012) Vol 23, No 3 (2012) Vol 23, No 2 (2012) Vol 23, No 1 (2012) Vol 22, No 4 (2011) Vol 22, No 3 (2011) Vol 22, No 2 (2011) Vol 22, No 1 (2011) Vol 21, No 4 (2010) Vol 21, No 3 (2010) Vol 21, No 2 (2010) Vol 21, No 1 (2010) Vol 20, No 4 (2009) Vol 20, No 3 (2009) Vol 20, No 2 (2009) Vol 20, No 1 (2009) Vol 19, No 4 (2008) Vol 19, No 3 (2008) Vol 19, No 2 (2008) Vol 19, No 1 (2008) Vol 18, No 4 (2007) Vol 18, No 3 (2007) Vol 18, No 2 (2007) Vol 18, No 1 (2007) More Issue