Smart Controls for Lighting Design: Towards a Study of the Boundary Conditions

Abstract

This research aims to determine the effect of the lighting smart controls in the energy consumption in buildings, according to the geometry of the room, the window size, the reflectance of the inner surfaces and the location of study. For this purpose, two lighting smart controls are proposed: one based in an On/Off lighting control with separated lines and other with a dimming control. The analysis of both control systems is carried out by using daylight dynamic metrics, such as the daylight autonomy and the continuous daylight autonomy. The results quantify the effect of the architectural variables of the room in the performance of the lighting smart controls.

Dynamic Daylight Metrics for Electricity Savings in Offices: Window Size and Climate Smart Lighting Management

“…One of the most common smart controls is that of dimming systems [12,13], which adjust the electricity power of the luminaires. The dimmer can be controlled by illuminance-meters which significantly reduce the power consumption in electric lighting [14,15].According to the latest studies [16][17][18], the strategies for lighting control can reduce power consumption by up to 50% when using dimming systems and close to 30% using occupant detectors. However, these technologies are not widespread, given the difficulties in installation, the limitations of the prediction algorithms, and the individual management preferences of occupants [19][20][21].…”

“…One of the most common smart controls is that of dimming systems [12,13], which adjust the electricity power of the luminaires. The dimmer can be controlled by illuminance-meters which significantly reduce the power consumption in electric lighting [14,15].…”

Simple mathematical models to link climate-based daylight metrics with daylight factor metrics and daylighting design implications

“…Users are free to set the threshold above which DA is calculated. It means that DA could be used to estimate the lighting energy saving under standard daylight-linked on-off lighting controls [ 34 ]. However, DA cannot reflect excessive indoor daylight, mDA was proposed to solve this issue [ 35 ].…”

Optimization of Window Design in Hospital Rooms for Effective Access to Daylight

“…Traditionally, the sizing of windows in architecture was mainly driven for aesthetic considerations, disregarding quantitative criteria for optimization and energy use. However, advancements in calculation methods and the introduction of novel dynamic metrics for natural lighting have paved the way [20,21], in recent years, a new way for enhancing window design [16], [22,23] and lighting control strategies [21], [23][24][25][26][27][28][29].…”