High Performance LED Lighting Measure

This measure adds a new lighting definition regarding LED lighting in each space of the model, and replace the existing lighting definition with the LED lighting definition in each space.

Description

The workflow of this measure is as follows: 1. Define a new LED lighting definition for each space. 2. Use the new LED lighting definition instead of the existing lighting definition in each space.

Approach

This measure follows the functions already existed in the BTAP environment with respect to setting lights in spaces.
However, a new function called set_lighting_per_area_led_lighting has been created in necb_2011.rb to set lighting power density (LPD) for LED lighting.
Moreover, the apply_standard_lights function (in lighting.rb) has been modified to set the three fields of fraction radiant, fraction visible, and return air fraction for LED lighting.
Furthermore, two variables have been added to the apply_standard_lights function: (1) lights_type to specify which lighting type to be used in the model. The lighting types that a user can choose are: CFL, LED. (2) scale to specify whether LPD default values are used or a fraction of LPD default values are used in the model.

Testing Plan

Waiting On

Files Added/Modified