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  4. Life cycle assessment of phase change materials, components and system concepts
 
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2018
Conference Paper
Title

Life cycle assessment of phase change materials, components and system concepts

Abstract
The main objectives of research on Phase Change Materials (PCM) for thermal storage are the development of low-loss and compact storage systems with high capacity (sensible water storages being the benchmark). If the storage is to be implemented in an application with the aim to increase its energy efficiency, beside the technical/thermal properties and cost factors, also the environmental impact of the storage production and operation need to be considered during development. Yet up to now, a holistic development approach thatconsiders the primary energy used for the manufacturing, operation and disposal in relationship to the potential energy savings does not exist for innovative storage concepts. Therefore, we are presenting data on the environmental impact of PCM on material and component level developed within the German project ""Speicher LCA"" (engl. ""Storage Life Cycle Assessment""). The evaluation shows that PCM can be environmentally beneficial compared to water, if they are used in an application with a small useful temperature difference (e.g. cooling). A further analysis shows that in applications with high cycle numbers, PCM-based storages can also be favorable compared to an ice storage because of the higher Energy Efficiency Ratio (EER) of the chiller providing the cold (100 to 600 cycles, depending on the material).
Author(s)
Nienborg, Björn  
Gschwander, Stefan  
Horn, R.
Weinläder, H.
Klinker, F.
Schossig, Peter  
Mainwork
12th IIR Conference on Phase-Change Materials and Slurries for Refrigeration and Air Conditioning 2018  
Conference
Conference on Phase-Change Materials and Slurries for Refrigeration and Air Conditioning (PCM) 2018  
DOI
10.18462/iir.pcm.2018.0049
Language
English
Fraunhofer-Institut für Solare Energiesysteme ISE  
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