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Title: Development of the hybrid sulfur cycle for use with concentrated solar heat. I. Conceptual design

Abstract

We propose a detailed conceptual design of a solar hybrid sulfur (HyS) cycle. Numerous design tradeoffs, including process operating conditions and strategies, methods of integration with solar energy sources, and solar design options were considered. A baseline design was selected, and process flowsheets were developed. Pinch analyses were performed to establish the limiting energy efficiency. Detailed material and energy balances were completed, and a full stream table prepared. Design assumptions include use of: location in the southwest US desert, falling particle concentrated solar receiver, indirect heat transfer via pressurized helium, continuous operation with thermal energy storage, liquid-fed electrolyzer with PBI membrane, and bayonet-type acid decomposer. Thermochemical cycle efficiency for the HyS process was estimated to be 35.0%, LHV basis. The solar-to-hydrogen (STH) energy conversion ratio was 16.9%. This thus exceeds the Year 2015 DOE STCH target of STH >10%, and shows promise for meeting the Year 2020 target of 20%.

Authors:
ORCiD logo [1];  [2];  [2]
  1. Savannah River Site (SRS), Aiken, SC (United States). Savannah River National Lab. (SRNL). Strategic Development and Innovation
  2. Savannah River Consulting, LLC, Aiken, SC (United States)
Publication Date:
Research Org.:
Savannah River Site (SRS), Aiken, SC (United States)
Sponsoring Org.:
USDOE Office of Energy Efficiency and Renewable Energy (EERE), Fuel Cell Technologies Office (EE-3F)
OSTI Identifier:
1407943
Report Number(s):
SRNL-STI-2017-00327
Journal ID: ISSN 0360-3199; PII: S0360319917327027; TRN: US1703063
Grant/Contract Number:
AC09-08SR22470
Resource Type:
Journal Article: Accepted Manuscript
Journal Name:
International Journal of Hydrogen Energy
Additional Journal Information:
Journal Volume: 42; Journal Issue: 33; Journal ID: ISSN 0360-3199
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
08 HYDROGEN; 25 ENERGY STORAGE; hybrid sulfur cycle; concentrated solar; falling particle receiver; thermal energy storage; conceptual design

Citation Formats

Gorensek, Maximilian B., Corgnale, Claudio, and Summers, William A. Development of the hybrid sulfur cycle for use with concentrated solar heat. I. Conceptual design. United States: N. p., 2017. Web. doi:10.1016/j.ijhydene.2017.06.241.
Gorensek, Maximilian B., Corgnale, Claudio, & Summers, William A. Development of the hybrid sulfur cycle for use with concentrated solar heat. I. Conceptual design. United States. doi:10.1016/j.ijhydene.2017.06.241.
Gorensek, Maximilian B., Corgnale, Claudio, and Summers, William A. Thu . "Development of the hybrid sulfur cycle for use with concentrated solar heat. I. Conceptual design". United States. doi:10.1016/j.ijhydene.2017.06.241.
@article{osti_1407943,
title = {Development of the hybrid sulfur cycle for use with concentrated solar heat. I. Conceptual design},
author = {Gorensek, Maximilian B. and Corgnale, Claudio and Summers, William A.},
abstractNote = {We propose a detailed conceptual design of a solar hybrid sulfur (HyS) cycle. Numerous design tradeoffs, including process operating conditions and strategies, methods of integration with solar energy sources, and solar design options were considered. A baseline design was selected, and process flowsheets were developed. Pinch analyses were performed to establish the limiting energy efficiency. Detailed material and energy balances were completed, and a full stream table prepared. Design assumptions include use of: location in the southwest US desert, falling particle concentrated solar receiver, indirect heat transfer via pressurized helium, continuous operation with thermal energy storage, liquid-fed electrolyzer with PBI membrane, and bayonet-type acid decomposer. Thermochemical cycle efficiency for the HyS process was estimated to be 35.0%, LHV basis. The solar-to-hydrogen (STH) energy conversion ratio was 16.9%. This thus exceeds the Year 2015 DOE STCH target of STH >10%, and shows promise for meeting the Year 2020 target of 20%.},
doi = {10.1016/j.ijhydene.2017.06.241},
journal = {International Journal of Hydrogen Energy},
number = 33,
volume = 42,
place = {United States},
year = {Thu Jul 27 00:00:00 EDT 2017},
month = {Thu Jul 27 00:00:00 EDT 2017}
}

Journal Article:
Free Publicly Available Full Text
This content will become publicly available on July 27, 2018
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Cited by: 1 work
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