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Title: Next Generation RivGen Power System: Kvichak River, AK Overwinter Ice Study

Abstract

The University of Alaska Fairbanks (UAF) Alaska Hydrokinetic Energy Research Center was tasked with developing a real-time data telemetry / remote power generation system to monitor frazil ice conditions in the Kvichak River in support of the U.S. Department of Energy funded "Next Generation MHK River Power System Optimized for Performance, Durability and Survivability" project. A real-time telemetry system was requested because of the short time span between the end of the frazil ice season when the instruments would be recovered, limited vessel availability and the project end-date. To meet the project objectives, UAF designed and assembled a remote power/real-time data telemetry system that included an auto start propane generator, a small PV array, a small battery bank and line-of-sight radios as well as two sonar systems to monitor river velocity and water column acoustic backscatter strength. Both sonars included internal batteries for powering the instruments in case of failure of the shore based power system. The sonars, deployed in ~5 m of water on the bed of the Kvichak River, adjacent to the Village of Igiugig, Alaska were tethered to shore via a waterproof armored cable that conveyed power to the subsurface instruments and data from the instruments tomore » the shore based telemetry system. The instruments were programmed to record data internally as well as to transmit data serially over the cables to the shore based system. The system was in-place between November, 2016 and June, 2017. While the real-time data telemetry system was not successful and the remote power generation power system was only partially successful, the system design included sufficient redundant power in the form of internal instrument batteries to enable the collection of nearly three months of overlapping velocity and backscatter data (from November through February) and a record of acoustic backscatter strength spanning the entire ~150 day frazil ice season between November, 2016 and ~April, 2017. This submission includes the overwinter ice study plan, raw data, and report.« less

Authors:
; ; ;
Publication Date:
Other Number(s):
235
DOE Contract Number:  
EE0007348
Research Org.:
Marine and Hydrokinetic Data Repository (MHKDR); Igiugig Village Council
Sponsoring Org.:
USDOE Office of Energy Efficiency and Renewable Energy (EERE), Wind and Water Technologies Office (EE-4W)
Collaborations:
Igiugig Village Council
Subject:
16 Tidal and Wave Power
Keywords:
MHK; Marine; Hydrokinetic; energy; power; ice; winter; Kvichak River; Alaska; Igiugig; sea spider; fiberglass tripod; turbine; frazil; ADCP; SWIP; river; monitoring; study; conditions; environment; acoustic doppler current profiler; study plan; equipment; data collection; plan; current; AK; horizontal; axis; axial; shallow; bottom mounted; RivGen; telemetry; remote; system; performance; durability; survivability; real-time; acoustic; doppler; profiler
Geolocation:
59.374773186758,-155.76275234375|59.26602304939,-155.76275234375|59.26602304939,-155.9933640625|59.374773186758,-155.9933640625|59.374773186758,-155.76275234375
OSTI Identifier:
1492960
DOI:
https://doi.org/10.15473/1492960
Project Location:


Citation Formats

Kasper, Jeremy, Duvoy, Paul, Konefal, Nick, and Cannavo, Andrew. Next Generation RivGen Power System: Kvichak River, AK Overwinter Ice Study. United States: N. p., 2017. Web. doi:10.15473/1492960.
Kasper, Jeremy, Duvoy, Paul, Konefal, Nick, & Cannavo, Andrew. Next Generation RivGen Power System: Kvichak River, AK Overwinter Ice Study. United States. doi:https://doi.org/10.15473/1492960
Kasper, Jeremy, Duvoy, Paul, Konefal, Nick, and Cannavo, Andrew. 2017. "Next Generation RivGen Power System: Kvichak River, AK Overwinter Ice Study". United States. doi:https://doi.org/10.15473/1492960. https://www.osti.gov/servlets/purl/1492960. Pub date:Wed Oct 04 00:00:00 EDT 2017
@article{osti_1492960,
title = {Next Generation RivGen Power System: Kvichak River, AK Overwinter Ice Study},
author = {Kasper, Jeremy and Duvoy, Paul and Konefal, Nick and Cannavo, Andrew},
abstractNote = {The University of Alaska Fairbanks (UAF) Alaska Hydrokinetic Energy Research Center was tasked with developing a real-time data telemetry / remote power generation system to monitor frazil ice conditions in the Kvichak River in support of the U.S. Department of Energy funded "Next Generation MHK River Power System Optimized for Performance, Durability and Survivability" project. A real-time telemetry system was requested because of the short time span between the end of the frazil ice season when the instruments would be recovered, limited vessel availability and the project end-date. To meet the project objectives, UAF designed and assembled a remote power/real-time data telemetry system that included an auto start propane generator, a small PV array, a small battery bank and line-of-sight radios as well as two sonar systems to monitor river velocity and water column acoustic backscatter strength. Both sonars included internal batteries for powering the instruments in case of failure of the shore based power system. The sonars, deployed in ~5 m of water on the bed of the Kvichak River, adjacent to the Village of Igiugig, Alaska were tethered to shore via a waterproof armored cable that conveyed power to the subsurface instruments and data from the instruments to the shore based telemetry system. The instruments were programmed to record data internally as well as to transmit data serially over the cables to the shore based system. The system was in-place between November, 2016 and June, 2017. While the real-time data telemetry system was not successful and the remote power generation power system was only partially successful, the system design included sufficient redundant power in the form of internal instrument batteries to enable the collection of nearly three months of overlapping velocity and backscatter data (from November through February) and a record of acoustic backscatter strength spanning the entire ~150 day frazil ice season between November, 2016 and ~April, 2017. This submission includes the overwinter ice study plan, raw data, and report.},
doi = {10.15473/1492960},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Wed Oct 04 00:00:00 EDT 2017},
month = {Wed Oct 04 00:00:00 EDT 2017}
}