Staging Rankine Cycles Using Ammonia for OTEC Power Production

Bharathan, D. (2011). Staging Rankine Cycles Using Ammonia for OTEC Power Production (Report No. NREL/TP-5500-49121). Report by National Renewable Energy Laboratory (NREL).

@techreport{Bharathan-2011-,
author = {Bharathan, D},
title = {Staging Rankine Cycles Using Ammonia for OTEC Power Production},
institution = {National Renewable Energy Laboratory (NREL)},
year = {2011},
month = {mar},
number = {NREL/TP-5500-49121},
url = {https://globalotec.co/open-library/},
keywords = {OTEC, Modeling, Performance},
}

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TY - RPRT
TI - Staging Rankine Cycles Using Ammonia for OTEC Power Production
AU - Bharathan, D
AB - Recent focus on renewable power production has renewed interest in looking into Ocean thermal energy conversion (OTEC) systems. Early studies in OTEC applicability indicate that the Island of Hawaii offers a potential market for a nominal 40-MWe system. However, a 40-MW system represents a large leap in the current state of OTEC technology with the associated risks, considering that the largest net-power producing system was tested at a power level of only 200 kWe in the 1990s [Bharathan 1990]. Smaller sized plants on the order of 1 to 2 MWe should be pursued first. Lockheed Martin Inc., under US Navy funding, is currently developing a 10-Mwe system design [Lockheed 2009]. With estimated capital cost per capacity ranging from 10,000$/kWe to 15,000$/kWe [Vega 2003] or more, it is essential that the potential risks associated with the first-of-the-kind plant be minimized. Every means for cost reduction must also be pursued without adding potential risks. Considering that majority of the costs are associated with the seawater systems, maximum use of the resource water takes on a high importance. It is with this in mind that we take on this short study to assess the potential for increasing return on the investment both in terms of effective use of the seawater and of reducing equipment costs.
DA - 2011/03//
PY - 2011
SP - 18
PB - National Renewable Energy Laboratory (NREL)
SN - NREL/TP-5500-49121
UR - https://globalotec.co/open-library/
LA - English
KW - OTEC
KW - Modeling
KW - Performance
ER -

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Abstract

Recent focus on renewable power production has renewed interest in looking into Ocean thermal energy conversion (OTEC) systems. Early studies in OTEC applicability indicate that the Island of Hawaii offers a potential market for a nominal 40-MWe system. However, a 40-MW system represents a large leap in the current state of OTEC technology with the associated risks, considering that the largest net-power producing system was tested at a power level of only 200 kWe in the 1990s [Bharathan 1990]. Smaller sized plants on the order of 1 to 2 MWe should be pursued first. Lockheed Martin Inc., under US Navy funding, is currently developing a 10-Mwe system design [Lockheed 2009]. With estimated capital cost per capacity ranging from 10,000$/kWe to 15,000$/kWe [Vega 2003] or more, it is essential that the potential risks associated with the first-of-the-kind plant be minimized. Every means for cost reduction must also be pursued without adding potential risks. Considering that majority of the costs are associated with the seawater systems, maximum use of the resource water takes on a high importance. It is with this in mind that we take on this short study to assess the potential for increasing return on the investment both in terms of effective use of the seawater and of reducing equipment costs.