Life Cycle Assessment (LCA) allows for the consideration of energy consumption and environmental impactsassociated with all the stages of a product's life, from the cradle to the grave. Starting from the results obtained in theIEA SHC Task 38 framework for the LCA of small solar assisted heat driven chillers, the application of suchmethodology has been extended to systems with a conventional compression chiller assisted by a photovoltaic plant.This study aims to provide a more comprehensive investigation through a comparison of these two families of solarassisted cooling systems (with solar thermal or PV), which is an important topic for studies concerning the researchof effective and environmentally friendly systems that exploit solar radiation for cooling and heating purposes. In hotclimates, the systems with the PV grid connected plant performed best. Anyway, a comparison of this system with theother systems is not meaningful because the strength of the solar thermal H/C system is the ability to reduce thedependence from the electric grid and to avoid peaks, overloads and power quality variations. Thus, two moreconfigurations were investigated to further define the PV assisted systems, which minimise their interaction with thegrid through the use of electricity storages. These systems performed worse than the PV grid connected systems andthe solar thermal assisted systems in nearly all the analysed cases.
|Numero di pagine||11|
|Stato di pubblicazione||Published - 2012|
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