Performance analysis of multi-purpose fluidic windows based on structured glass-glass laminates in a triple glazing

Su L, Fraass M, Kloas M, Wondraczek L (2019)

Publication Type: Journal article

Publication year: 2019

Journal

Frontiers in Materials Frontiers Media

Book Volume: 6

Article Number: 102

DOI: 10.3389/fmats.2019.00102

Abstract

For decades, various technologies have been developed aiming to enhance the energy efficiency of buildings. As a recent example, fluidic windows have been reported which literally enable to wrap buildings into a liquid layer and to transform the building envelope into a thermally active system for energy harvesting, distribution and storage. Elaborating on this concept, we now consider the performance of insulation glass units (IGU) which implement glass-glass capillary panels for liquid circulation. Such devices contain a scalable heat pump that can reversely be operated in active cooling or heating modes. By bridging the insulation panel inside the window, also passive cooling functionality is achieved. Long-term computational performance analysis shows that adequate thermal comfort can be ensured with different window-to-floor size ratios, and for different internal heat gain, for example, caused by differences in room occupation. For a size ratio of 0.4, we demonstrate a competitive seasonal performance factor, i.e., ~6.5 for heating and ~10.9 for cooling. On-device photovoltaic power can cover more than four fifths or the annual electricity consumption of all auxiliary components. For the size ratio of 0.4 in a highly-occupied office room, the device specific primary energy consumption ensuring year-over thermal comfort is as low as ~2.9 kWh/(m2a).

Authors with CRIS profile

Lothar Wondraczek

Involved external institutions

Friedrich-Schiller-Universität Jena DE Germany (DE) Berliner Hochschule für Technik Berlin DE Germany (DE)

How to cite

APA:

Su, L., Fraass, M., Kloas, M., & Wondraczek, L. (2019). Performance analysis of multi-purpose fluidic windows based on structured glass-glass laminates in a triple glazing. Frontiers in Materials, 6. https://doi.org/10.3389/fmats.2019.00102

MLA:

Su, Lingqi, et al. "Performance analysis of multi-purpose fluidic windows based on structured glass-glass laminates in a triple glazing." Frontiers in Materials 6 (2019).

BibTeX: Download