MEMS Smart Glass for Personalized Lighting and Energy Management in Buildings
Hartmut Hillmer （ Nanoscale Glasstec GmbH, 34132 Kassel, Germany. ）
Dennis Loeber （ Institute of Nanostructure Technologies and Analytics (INA) and Center for Interdiscip-linary Nanostructure Science and Technology (CINSaT), University of Kassel, 34109 Kassel, Germany. ）
Md Kamrul Hasan （ Institute of Nanostructure Technologies and Analytics (INA) and Center for Interdiscip-linary Nanostructure Science and Technology (CINSaT), University of Kassel, 34109 Kassel, Germany. ）
Steffen Liebermann （ Institute of Nanostructure Technologies and Analytics (INA) and Center for Interdiscip-linary Nanostructure Science and Technology (CINSaT), University of Kassel, 34109 Kassel, Germany. ）
Mustaqim Siddi Que Iskhandar （ Nanoscale Glasstec GmbH, 34132 Kassel, Germany. ）
Shilby Baby （ Nanoscale Glasstec GmbH, 34132 Kassel, Germany. ）
Shujie Liu （ Institute of Nanostructure Technologies and Analytics (INA) and Center for Interdiscip-linary Nanostructure Science and Technology (CINSaT), University of Kassel, 34109 Kassel, Germany. ）
Basma Elsaka （ Institute of Nanostructure Technologies and Analytics (INA) and Center for Interdiscip-linary Nanostructure Science and Technology (CINSaT), University of Kassel, 34109 Kassel, Germany. ）
Jiahao Chen （ Institute of Nanostructure Technologies and Analytics (INA) and Center for Interdiscip-linary Nanostructure Science and Technology (CINSaT), University of Kassel, 34109 Kassel, Germany. ）
Muhammad Hasnain Qasim （ Institute of Nanostructure Technologies and Analytics (INA) and Center for Interdiscip-linary Nanostructure Science and Technology (CINSaT), University of Kassel, 34109 Kassel, Germany. ）
Guilin Xu （ Nanoscale Glasstec GmbH, 34132 Kassel, Germany. ）
Naureen Ahmed （ Institute of Nanostructure Technologies and Analytics (INA) and Center for Interdiscip-linary Nanostructure Science and Technology (CINSaT), University of Kassel, 34109 Kassel, Germany. ）
Eslam Farrag （ Institute of Nanostructure Technologies and Analytics (INA) and Center for Interdiscip-linary Nanostructure Science and Technology (CINSaT), University of Kassel, 34109 Kassel, Germany. ）
https://doi.org/10.37155/2811-0730-0201-14
Abstract
A detailed quantitative overview on different MEMS smart glass technologies and smart glass technologies in general is given. Our MEMS smart glass is focused next, based on millions of miniaturized planar mirrors. Installed in windows or building facades, it allows personalized daylight steering as well as thermal and energy management in buildings via electrostatic actuation, strongly supports health and has a large potential for reducing CO2 emissions and energy consumption of buildings, noticeably. Various results of experimental characterizations and reliability studies are summarized. Simulations of light steering are reported for different use cases involving tailored variable tilt angles of the mirrors. Ray tracing is used to visualize light steering and distribution in a model room, showing that our MEMS smart glass can generate high illuminance where necessary in workspaces. Finally, simulations of energy savings, and amortization times are presented using hourly resolved real weather data over up to 10 years, varying cloud coverage, daytime and seasonal varying irradiance via varying sun orbit, respective geo coordinates of different locations, energy price and others. Simulation results are depicted for four German and two international cities, varying in latitude and elevation. Huge energy saving potential of our MEMS smart glass and amortization of investment in MEMS smart glass within less than five years in the best case is reported compared to conventional window blind systems.
Keywords
Energy Saving; Green Technologies; Smart Window; Thermal and Energy Management; Personalized Daylight SteeringFull Text
PDFReferences
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Copyright © 2024 Hartmut Hillmer, Dennis Loeber, Md Kamrul Hasan, Steffen Liebermann, Mustaqim Siddi Que Iskhandar, Shilby Baby, Shujie Liu, Basma Elsaka, Jiahao Chen, Muhammad Hasnain Qasim, Guilin Xu
Publishing time:2023-08-08
This work is licensed under a Creative Commons Attribution 4.0 International License
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