Question: A daylighting system using dimming controls is being considered for a five-story office building located in Denver, Colorado. A typical floor is 200 ft by
A daylighting system using dimming controls is being considered for a five-story office building located in Denver, Colorado. A typical floor is 200 ft by 50 ft with perimeter offices extending 12 ft from the vertical windows. The electrical lighting has a density of 1.2 W/ft^2 and is operated (without daylighting controls) 5,500 hours/year. The energy cost is $0.08/kWh. Calculate the Annual Cost Savings of the daylighting system if double reflective tinted glazing is used. Consider Window-to-Wall Ratio (WWR) value 30 percent. Assume 10 ft height of each floor. Question 10 options: $3375 $3175 $3275 $3305
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