Lighting is a major energy consumer in commercial buildings. Heat generated from electrical lighting also contributes significantly to the energy needed for cooling of buildings. ECBC prescribes the amount of power for lighting, specifies types of lighting controls, and defines situations where daylighting must be used. Two types of lighting simulations are as below:
A computer-based calculation of the amount of daylight available inside or outside of a building under one or several sky conditions. Simulation outputs may be discrete numbers (illuminances and luminances) under selected sensor points within a scene or visualizations of a scene.
Daylighting reduces the need for lighting energy , which when integrated with the approach to lighting design can contribute to a decrease in the energy consumption. It is estimated that a well day-lit building can reduce lighting energy use by 50 to 80%.
With the use of modeling software tools, ALF Green can help the design team to enhance daylighting availability in most regularly occupied spaces in the building, thereby providing a comfortable environment to the occupants while reducing energy consumption.
Artificial Lighting Simulation
A computer-based calculation of the amount of man made lighting that is being used or required in a building. A building’s interior lighting system effects both the emotional and physical well being of the occupants in addition to major consumption of electrical energy and also a source of internal heat. Specifying energy efficient lighting system which uses both natural and lighting controls will provide a comfortable visual environment to the occupants.
The simulation process is completely integrated with the other design services (architectural, structural, energy modelling, utilities etc. With the use of modeling software tools, ALF Green can help the design team to achieve highly efficient artificial lighting systems.