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Improving the accuracy of circadian lighting simulation with field measurement.
- Source :
- Journal of Building Performance Simulation; Sep2022, Vol. 15 Issue 5, p575-598, 24p
- Publication Year :
- 2022
-
Abstract
- For improving the simulation accuracy of circadian lighting, a workflow was established to first calibrate the simulation model under electric lighting followed by validation with integrated daylighting and electric lighting. A case study was conducted in a daylit office, with the evident impact of varying lighting parameters (light level, intensity, SPD, reflectance) on the simulation accuracy. In the fully calibrated model, the simulated and field-measured SPDs are highly correlated (r<subscript>SPD </subscript>≥ 0.9), providing the acceptable accuracy of the simulated melanopic/photopic(M/P) ratio with the error rate (MBE<subscript>rel</subscript>) less than 4% and residual deviation (RMSE<subscript>rel</subscript>) within 7%. The MBE<subscript>rel</subscript> and RMSE<subscript>rel</subscript> of corneal illuminance (E<subscript>V</subscript>), EML, and CS are within 10% and 20%, respectively. The ratio of data points with the residual rate (e) less than 20% is over 75% in the calibration and validation phases. Conclusively, the proposed procedure could help prepare for further analysis of circadian light exposure. [ABSTRACT FROM AUTHOR]
- Subjects :
- ELECTRIC lighting
ERROR rates
OFFICES
DAYLIGHTING
LUMINOUS flux
Subjects
Details
- Language :
- English
- ISSN :
- 19401493
- Volume :
- 15
- Issue :
- 5
- Database :
- Complementary Index
- Journal :
- Journal of Building Performance Simulation
- Publication Type :
- Academic Journal
- Accession number :
- 158448145
- Full Text :
- https://doi.org/10.1080/19401493.2022.2071466