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Title: High-Efficiency Low-Cost Solar Receiver for Use Ina a Supercritical CO 2 Recompression Cycle

Abstract

This project has performed solar receiver designs for two supercritical carbon dioxide (sCO 2) power cycles. The first half of the program focused on a nominally 2 MWe power cycle, with a receiver designed for test at the Sandia Solar Thermal Test Facility. This led to an economical cavity-type receiver. The second half of the program focused on a 10 MWe power cycle, incorporating a surround open receiver. Rigorous component life and performance testing was performed in support of both receiver designs. The receiver performance objectives are set to conform to the US DOE goals of 6¢/kWh by 2020 . Key findings for both cavity-type and direct open receiver are highlighted below: A tube-based absorber design is impractical at specified temperatures, pressures and heat fluxes for the application; a plate-fin architecture however has been shown to meet performance and life targets; the $148/kW th cost of the design is significantly less than the SunShot cost target with a margin of 30%; the proposed receiver design is scalable, and may be applied to both modular cavity-type installations as well as large utility-scale open receiver installations; the design may be integrated with thermal storage systems, allowing for continuous high-efficiency electrical production duringmore » off-sun hours; costs associated with a direct sCO 2 receiver for a sCO 2 Brayton power cycle are comparable to those of a typical molten salt receiver; lifetimes in excess of the 90,000 hour goal are achievable with an optimal cell geometry; the thermal performance of the Brayton receiver is significantly higher than the industry standard, and enables at least a 30% efficiency improvement over the performance of the baseline steam-Rankine boiler/cycle system; brayton’s patent-pending quartz tube window provides a greater than five-percent efficiency benefit to the receiver by reducing both convection and radiation losses.« less

Authors:
 [1];  [1];  [1];  [1];  [1];  [1]
  1. Brayton Energy, LLC, Portsmouth, NH (United States)
Publication Date:
Research Org.:
Brayton Energy, LLC, Portsmouth, NH (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1333813
Report Number(s):
DOE-BRAYTON-0005799
6032056009
DOE Contract Number:  
EE0005799
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
14 SOLAR ENERGY; Supercritical Carbon Dioxide; sCO2; s-CO2; receiver; absorber; heat exchanger; quartz; qindow

Citation Formats

Sullivan, Shaun D., Kesseli, James, Nash, James, Farias, Jason, Kesseli, Devon, and Caruso, William. High-Efficiency Low-Cost Solar Receiver for Use Ina a Supercritical CO2 Recompression Cycle. United States: N. p., 2016. Web. doi:10.2172/1333813.
Sullivan, Shaun D., Kesseli, James, Nash, James, Farias, Jason, Kesseli, Devon, & Caruso, William. High-Efficiency Low-Cost Solar Receiver for Use Ina a Supercritical CO2 Recompression Cycle. United States. doi:10.2172/1333813.
Sullivan, Shaun D., Kesseli, James, Nash, James, Farias, Jason, Kesseli, Devon, and Caruso, William. Wed . "High-Efficiency Low-Cost Solar Receiver for Use Ina a Supercritical CO2 Recompression Cycle". United States. doi:10.2172/1333813. https://www.osti.gov/servlets/purl/1333813.
@article{osti_1333813,
title = {High-Efficiency Low-Cost Solar Receiver for Use Ina a Supercritical CO2 Recompression Cycle},
author = {Sullivan, Shaun D. and Kesseli, James and Nash, James and Farias, Jason and Kesseli, Devon and Caruso, William},
abstractNote = {This project has performed solar receiver designs for two supercritical carbon dioxide (sCO2) power cycles. The first half of the program focused on a nominally 2 MWe power cycle, with a receiver designed for test at the Sandia Solar Thermal Test Facility. This led to an economical cavity-type receiver. The second half of the program focused on a 10 MWe power cycle, incorporating a surround open receiver. Rigorous component life and performance testing was performed in support of both receiver designs. The receiver performance objectives are set to conform to the US DOE goals of 6¢/kWh by 2020 . Key findings for both cavity-type and direct open receiver are highlighted below: A tube-based absorber design is impractical at specified temperatures, pressures and heat fluxes for the application; a plate-fin architecture however has been shown to meet performance and life targets; the $148/kWth cost of the design is significantly less than the SunShot cost target with a margin of 30%; the proposed receiver design is scalable, and may be applied to both modular cavity-type installations as well as large utility-scale open receiver installations; the design may be integrated with thermal storage systems, allowing for continuous high-efficiency electrical production during off-sun hours; costs associated with a direct sCO2 receiver for a sCO2 Brayton power cycle are comparable to those of a typical molten salt receiver; lifetimes in excess of the 90,000 hour goal are achievable with an optimal cell geometry; the thermal performance of the Brayton receiver is significantly higher than the industry standard, and enables at least a 30% efficiency improvement over the performance of the baseline steam-Rankine boiler/cycle system; brayton’s patent-pending quartz tube window provides a greater than five-percent efficiency benefit to the receiver by reducing both convection and radiation losses.},
doi = {10.2172/1333813},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2016},
month = {4}
}