The characteristics of photosensors and electronic dimming ballasts in daylight responsive dimming systems

A review of daylight illuminance determinations and energy implications

“…Based on the cumulative frequency brightness curves of fluorescent lamp fittings, the lighting energy savings and number of switching operations for a standard onoff photoelectric control were determined [135]. Top-up controls vary the light output of lamps in accordance with the prevailing daylight level [136]. For fluorescent lighting, dimmers fall into two main types [134].…”

Evaluation of Daylight Availability for Energy Savings

“…In [34], they demonstrated that evaluating energy costs with different software can determine results that diverge up to 15%. On the one hand differences in results depend on the definition of indoor daylight availability, but on the other hand they depend on the control systems' modeling that neglect important factors as the specific characteristics of photosensors, luminaires, or ballasts [20][21][22][23].…”

“…Above the already mentioned studies about software validations, researchers analyzed different aspects connected to simulations: calculation affecting factors as sky model or weather data file [16][17][18], the correct modeling of complex materials or fenestration systems [6,14], the uncertainty of users' behavior [19], and the daylightlinked control modeling [20][21][22][23].…”

Effect of internal woven roller shade and glazing on the energy and daylighting performances of an office building in the cold climate of Shillong

“…On/off and continuous dimming controls are two commonly used daylight linked control systems. Previous studies showed that both of the control systems can reduce electrical lighting energy consumption significantly in the buildings that have indoor daylight access [45][46][47][48][49][50][51]. However, the on/off control system requires extra attention to adequate zoning and its calibration (based on space daylight availability) [46].…”