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

Abstract

Geruganti Sudhakar

This work presents a field-tested experimental configuration for deploying SrBr2·6H2O thermochemical heat storage in polar/humid regions. The system combines:

A Modular Reactor with vapor-permeable stainless-steel fins (5 cm pitch) for enhanced kinetics

Solar-Assisted Dehydration at 85±5°C using low-concentration CPC collectors

Humidity-Controlled Hydration with Arctic air preconditioning (5→25°C, 30→80% RH)

Corrosion Mitigation via 0.5 mm PTFE coating on all wet surfaces

Field tests in Nuuk, Greenland (64°N, avg. -10°C winter) demonstrated:

â?? 72% Hydration Efficiency at 5°C ambient (vs. 35% in unoptimized designs)

â?? 0.81 GJ/m3 energy density maintained over 50 cycles

â?? Frost Prevention through self-regulating N2 purge system

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