Active Free Cooling Optimization with Thermal Energy Storage in Stockholm
2012 (English)In: InnoStock The 12th International Conference on Energy Storage: Book of Abstract / [ed] Stock Conference, 2012, 106-107 p.Conference paper, Abstract (Refereed)
In the goal of reaching an environmental benign society, energy saving through green building design has gained increasing attention. Passive buildings may cut down the energy requirement in winter through use of solar based heating, increased insulation and smart design of energy management. However it has also been shown that over insulated structures also create excessive heat gain in summer generating thus an increased cooling demand [1,2].
In countries where the ambient environment is at sufficiently low temperature at night to act as a heat sink, thermal energy displacement from period when cold is available to period when cooling is needed may alleviate fossil fuel based cooling produced with conventional means. The displacement of thermal energy may be reliably achieved with use of Thermal Energy Storage (TES), such systems in buildings have been shown to provide better indoor thermal comfort by a number of researchers [3,4,5]. Direct advantages of using TESs are reduction in size of cooling equipment, decrease in electricity consumption, and better utilization of renewable sources.
Phase change materials (PCMs) that rely on use of latent heat for storage of thermal energy prove to lead to more compact design of energy system and a steadier source temperature . An environmentally friendly active free cooling solution with use of Latent Heat Thermal Energy Storage (LHTES) is proposed in this work where an optimization between cost, comfort level and storage design is studied and compared against conventional chillers in Stockholm climate.
Place, publisher, year, edition, pages
2012. 106-107 p.
Passive Building, Overheating, PCM, TES, Free Cooling
Engineering and Technology
Research subject SRA - Energy
IdentifiersURN: urn:nbn:se:kth:diva-95568ISBN: 978-84-938793-3-4OAI: oai:DiVA.org:kth-95568DiVA: diva2:528867
InnoStock The 12th International Conference on Energy Storage
ProjectsCold Thermal Energy Storage
QC 201212182012-05-282012-05-282013-03-25Bibliographically approved