Concerning daylighting design, a basic formula is that the minimum daylight factor (DF) in a given room is equal to 10% of the window area (based on a percentage of floor area). This means that one would multiply the requisite DF by a factor of ten to get the percentage of floor area required for the window area. We have a classroom that measures out at 700 square feet of floor area and we have a design illuminance required of 30 footcandles. We will assume a typical outdoor illuminance of 1000 footcandles during heavy overcast days and winter storm days. Given this above-noted information and basic calculations, the total square footage of window area required to yield the requisite daylight amount is
Concerning daylighting design, a basic formula is that the minimum daylight factor (DF) in a given room is equal to 10% of the window area (based on a percentage of floor area). This means that one would multiply the requisite DF by a factor of ten to get the percentage of floor area required for the window area. We have a classroom that measures out at 700 square feet of floor area and we have a design illuminance required of 30 footcandles. We will assume a typical outdoor illuminance of 1000 footcandles during heavy overcast days and winter storm days. Given this above-noted information and basic calculations, the total square footage of window area required to yield the requisite daylight amount is
Delmar's Standard Textbook Of Electricity
7th Edition
ISBN:9781337900348
Author:Stephen L. Herman
Publisher:Stephen L. Herman
Chapter25: Surge, Spike, And Lightning Protection
Section: Chapter Questions
Problem 10RQ: In reference to the load, how are capacitors connected to help prevent voltage spikes and surges?...
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