Towards Seasonal Heat Storage Based on Stable Super Cooling of Sodium Acetate Trihydrate
Abstract
Small scale laboratory experiments have been carried out with the aim of elucidating how best to design a seasonal heat storage based on the salt hydrate sodium acetate trihydrate. The heat storage will be suitable for solar heating systems, which can fully cover the heat demand of low energy buildings under Danish conditions. The heat storage concept is based on the advantage of stable supercooling of the salt hydrate to achieve a partly heat loss free heat storage. Based on the experiments, a laboratory heat storage module was built. The module will be tested in 2010. It is expected that a 1000 l laboratory seasonal heat storage will be built and tested in 2011.