System scaling approach and thermoeconomic analysis of a pressure retarded osmosis system for power production with hypersaline draw solution: A Great Salt Lake study

Update item information
Publication Type pre-print
School or College College of Engineering
Department Mechanical Engineering
Creator Tran, Thomas T. D.
Other Author Smith, Amanda D.
Title System scaling approach and thermoeconomic analysis of a pressure retarded osmosis system for power production with hypersaline draw solution: A Great Salt Lake study
Date 2017-06
Description Osmotic power with pressure retarded osmosis (PRO) is an emerging renewable energy option for locations where fresh water and salt water mix. Energy can be recovered from the salinity gradient between the solutions. This study provides a comprehensive feasibility analysis for a PRO power plant in a hypersaline environment. A sensitivity analysis investigates the effects of key technical and financial parameters on energy and economic performances. A case study is developed for the Great Salt Lake in Utah, USA (which has an average 24% salt concentration). A 25 MW PRO power plant is investigated to analyze the necessary components and their performances. With currently available technologies, the power plant would require 1.54 m3/s (24,410 GPM) fresh water flow rate and 3.08 m3/s (48,820 GPM) salt water flow rate. The net annual energy production is projected to be 154,249 MWh, with capital cost of $238.0 million, and operations and maintenance cost of $35.5 million per year. The levelized cost of electricity (LCOE) would be $0.2025/kWh, but; further design improvements would reduce the LCOE to $0.1034/kWh. The high salinity of the Great Salt Lake is a critical factor toward making the osmotic power plant economically feasible.
Type Text
Publisher Elsevier
Journal Title Energy
Volume 126
First Page 97
Last Page 111
DOI DOI: 10.1016/j.energy.2017.03.002
Subject Pressure retarded osmosis; Power generation; Renewable energy; Hydroelectric; Levelized cost
Language eng
Rights Management (c) Thomas T. D. Tran, Amanda D. Smith
Format Medium application/pdf
ARK ark:/87278/s6vt5r5s
Setname ir_uspace
Date Created 2018-03-06
Date Modified 2021-05-06
ID 1300866
Reference URL https://collections.lib.utah.edu/ark:/87278/s6vt5r5s
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