Sulfur Based Thermochemical Heat Storage for Baseload Concentrated Solar Power Generation

Technical Report · Sat Nov 01 00:00:00 EDT 2014

DOI:https://doi.org/10.2172/1165341· OSTI ID:1165341

Wong, Bunsen ^[1]

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1. General Atomics, San Diego, CA (United States)

This project investigates the engineering and economic feasibility of supplying baseload power using a concentrating solar power (CSP) plant integrated with sulfur based thermochemical heat storage. The technology stores high temperature solar heat in the chemical bonds of elemental sulfur. Energy is recovered as high temperature heat upon sulfur combustion. Extensive developmental and design work associated with sulfur dioxide (SO₂) disproportionation and sulfuric acid (H₂SO₄) decomposition chemical reactions used in this technology had been carried out in the two completed phases of this project. The feasibility and economics of the proposed concept was demonstrated and determined.

• Research Organization: General Atomics, San Diego, CA (United States)
• Sponsoring Organization: USDOE Office of Energy Efficiency and Renewable Energy (EERE), Renewable Power Office. Solar Energy Technologies Office
• Contributing Organization: German Aerospace Center
• DOE Contract Number: ee0003588
• OSTI ID: 1165341
• Report Number(s): GA-A27976
• Country of Publication: United States
• Language: English

Related Subjects

14 SOLAR ENERGY
Energy Storage
Thermochemcial Energy Storage
Sulfur Cycle