Optimized Experimental Setup for Thermochemical Energy Storage Using Strontium Bromide Hexahydrate in Icy/Humid Climates

Read the full article

Listed in

This article is not in any list yet, why not save it to one of your lists.
Log in to save this article

Abstract

We present a field-tested reactor system for SrBr₂·6H₂O thermochemical storage in extreme environments, integrating: (1) radially finned stainless steel reactors (5 cm pitch) with 0.5 mm PTFE liners for corrosion resistance, (2) solar-driven dehydration at 85±5°C using CPC collectors (18 m² per m³ SrBr₂), and (3) humidity-swing absorption for frost-free hydration below 0°C. The design features LiCl-coated heat exchangers to concentrate ambient vapor (P_H₂O = 0.8×Psat(T+15°C)), enabling 49 W/kg heat output at -20°C – 75% higher than conventional systems. A 5 m³ prototype in Greenland achieved 9-day summer charging (1.05 GJ/m³ storage) and 62 annual cycles with <3% capacity fade. Techno-economic analysis shows 12-year payback at €0.11/kWh, competitive with Arctic heat pumps.

Article activity feed