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An Intervention Study on Automated Lighting Control to Save Energy in Open Space Offices

Publication Type Conference Paper
Authors Luis Ignacio Lopera Gonzalez, Ulf Großekathöfer, Oliver Amft
Title An Intervention Study on Automated Lighting Control to Save Energy in Open Space Offices
Abstract We present intervention study on energy saving investigating the benefit of controlling ceiling lighting based on occupant presence information obtained at each desk. We show that fine-grained sensing and control is particularly beneficial for lighting control in open plan office spaces. Our intervention was conducted in a $63.8m^2$ modern open office space over a time of $1.5$ months. Ultrasound sensors were installed to obtain presence at each desk. Self-dimming ceiling lights were made individually controllable and a novel building management system (BMS) was implemented. Every two desks and a nearby light were grouped in a cell, implicitly defined by rules of the BMS. Based on the intervention, energy savings of up to 19.01kWh/(m$^2$\cdot year) were obtained. Recorded presence and power consumption values were used to simulate alternative lighting control strategies with reduced sensor numbers to further explore energy saving benefits.
Date March 2015
Proceedings Title PerEnergy 2015: IEEE International Conference on Pervasive Computing and Communications Workshops
Publisher IEEE
Pages 317–322
DOI 10.1109/PERCOMW.2015.7134055
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Friedrich-Alexander-Universität Erlangen-Nürnberg