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Analysis of Energy Savings Potentials for Integrated Room Automation


D. Gyalistras, M. Gwerder, F. Oldewurtel, C.N. Jones, M. Morari, B. Lehmann, K. Wirth, V. Stauch

Clima - RHEVA World Congress, Antalya, Turkey

The energy savings potential of selected measures related to the simultaneous control of blinds, electric lighting, heating, cooling and ventilation in a single building zone (Integrated Room Automation) was investigated. To this purpose was conducted a factorial study comprising several thousands, whole-year, hourly time step dynamic simulations. The largest energy savings potential was found for the use of CO2-controlled ventilation as opposed to the use of a fixed ventilation schedule (average annual savings 13–28%, depending on building zone characteristics, building technical system variant, and location), followed by a widening of the thermal comfort range by ~1.5 ēC (6–16%), the allowance for night/weekend room temperature set-back (0–18%), and the optimization of the control actions with regard to energetic instead of monetary cost (1–14%). The theoretical savings potential of predictive control was also assessed (6–16%). The found, large variability associated with these average numbers underlines the importance of simulation-based assessments on a per case basis.

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% Autogenerated BibTeX entry
@InProceedings { GyaEtal:2010:IFA_3547,
    author={D. Gyalistras and M. Gwerder and F. Oldewurtel and C.N. Jones and M.
	  Morari and B. Lehmann and K. Wirth and V. Stauch},
    title={{Analysis of Energy Savings Potentials for Integrated Room
    booktitle={Clima - RHEVA World Congress},
    address={Antalya, Turkey},
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