Design Guidelines for Thermal Comfort and Energy Consumption of Triple Glazed Fluidic Windows on Building Level

Su L, Fraass M, Wondraczek L (2021)

Publication Type: Journal article

Publication year: 2021

Journal

Advanced Sustainable Systems Wiley

Book Volume: 5

Article Number: 2000194

Journal Issue: 2

DOI: 10.1002/adsu.202000194

Abstract

There has been a growing trend for buildings with large glazing size. As a trade-off, this comes with enhanced solar heat input and/or reduced thermal insulation. Several approaches are being followed to reduce the energy consumption in these buildings, including the prolific field of smart windows. In a previous report, a fluidic window device for thermal harvesting and air-conditioning was introduced. Using this example, the impact of a building's window-to-wall ratio on the triple glazed fluidic window's energy consumption and user thermal comfort is evaluated, providing design guidelines for large-scale implementation of such smart windows with real-world buildings. The analysis shows that the proposed window design reduces the primary energy demand as compared to using a conventional air-conditioning system. Building simulation results indicate that the system enables satisfying thermal comfort for buildings with different window-to-wall ratios. Although a higher window-to-wall ratio improves the heat pump efficiency, it requires more heating and cooling energy. On-device photovoltaic modules may be used for changing this relationship. In this case, the proposed device may become self-sufficient once the transfer efficiency is high enough. It is argued that similar considerations should be applied to other types of smart window technologies.

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., & Wondraczek, L. (2021). Design Guidelines for Thermal Comfort and Energy Consumption of Triple Glazed Fluidic Windows on Building Level. Advanced Sustainable Systems, 5(2). https://doi.org/10.1002/adsu.202000194

MLA:

Su, Lingqi, Mathias Fraass, and Lothar Wondraczek. "Design Guidelines for Thermal Comfort and Energy Consumption of Triple Glazed Fluidic Windows on Building Level." Advanced Sustainable Systems 5.2 (2021).

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