Life Cycle Assessment of a Novel All-Polymeric Pumped Solar Thermal Collector System for Hot Water Preparation
Sprache des Vortragstitels:
ECOS 2018 - 31st International Conference on Efficiency, Cost, Optimization, Simulation and Environmental Impact of Energy Systems
Sprache des Tagungstitel:
Solar thermal systems are of high relevance and interest for the supply of low temperature heat for different purposes. Especially, hot water systems are dominating the solar-thermal market with non-pumped systems gaining more and more importance. The main objective of this paper is to assess a novel all-polymeric pumped solar thermal collector system for hot water preparation as to its life cycle metrics. For the assessment the Eco Audit Tool of CES Selector by Ashby et al.  and Granta Design was used. For all components the eco-impact is governed primarily by material production compared to component manufacturing. In ecological terms solar thermal hot water preparation significantly contributes to sustainability with energetic amortization times around 1 year. In hot climate zones small domestic hot water systems for single family houses fulfil both economic and ecological criteria. For such systems polymeric materials offer a better overall performance and mass production and ease of installation capability. The societal acceptance is high in less industrialized countries, but needs some improvement in industrialized countries, especially for most promising installations in multi-family houses.