A Model for Predicting Energy Savings Attainable by Using Lighting Systems Dimmable to a Constant Illuminance Level
The objective of this paper is to demonstrate the feasibility of predicting electric energy savings achievable by using dimmable interior lighting systems. The prediction model uses an artificial interior lighting system which can be dimmed to a constant illuminance level and takes into account the contribution of daylight entering the space through side and top daylight openings, i.e. windows and skylights. The basic motivation for setting up this prediction model was the requirement raised by interior lighting system designers who need to know the net economic effect of dimmable lighting systems and to use the figures in discussions with the investor during the design project preparation stage. The prediction model developed gives transparent and unambiguous evidence of the economic benefit of using lighting systems.
KeywordsDaylight Artificial light Lighting systems Energy requirements
This paper has been elaborated in the framework of the project SP2018/117 of Student Grant System, VSB-TU Ostrava.
- 2.CIE. www.cie.co.at
- 3.Software WDLS a WILS (2013). http://www.astrasw.cz Accessed 25 July 2013
- 4.Sumpich, J., Novak, T., Sokansky, K., Carbol, Z.: Calculation of saving possibilities in interior lighting system using both daylight and artificial light. In: Przeglad Elektrotechniczny, pp. 345–347 (2013)Google Scholar
- 5.Sumpich, J., Sokansky, K., Novak, T., Carbol, Z.: Electrical energy saving possibilities in lightening of indoor workplace while using both daylight and artificial light. In: 13th International Scientific Conference Electric Power Engineering 2012, EPE 2012, pp. 1165–1168 (2011). ISBN: 978-80-248-2480-2Google Scholar
- 6.Novak, T., Vanus, J., Sumpich, J., Koziorek, J., Sokansky, K., Hrbac R.: Possibility to achieve the energy savings by the light control in smart home. In: Proceedings of the 7th International Scientific Symposium on Electrical Power Engineering, Stará Lesná, Slovakia, 18 September–20 September 2013, pp. 260–263. Košice: Elektroenergetika 2013 (2013)Google Scholar
- 7.Vanus, J., Novak, T., Koziorek, J., Konecny, J., Hrbac, R.: The proposal model of energy savings of lighting systems in the smart home care. In: IFAC Proceedings Volumes (IFAC-PapersOnline) 2013, pp. 411–415 (2013)Google Scholar
- 8.Parise, G., Martirano, L.: Daylight impact on energy performance of internal lighting. IEEE Trans. Ind. Appl. 49(1), 242–249 (2013).art. no. 6363598Google Scholar