4.1 Consider the design of a "light shelf" for the south side of an office building located at a site with latitude 30°. The idea is that the light shelf should help keep direct sunlight from entering the office. It also bounces light up onto the ceiling to distribute natural daylight more uniformly into the office. 2 ft 4 ft X₁ Upper window X₂ Light /shelf Lower window S FIGURE P4.1 And Not allowed As shown, the window directly above the light shelf is 2-ft high and the window directly below is 4 ft. What should the dimensions X₁ and X₂ be to be sure that no direct sunlight ever enters the space at solar noon?

4.1 Consider the design of a "light shelf" for the south side of an office building located at a site with latitude 30°. The idea is that the light shelf should help keep direct sunlight from entering the office. It also bounces light up onto the ceiling to distribute natural daylight more uniformly into the office. 2 ft 4 ft X₁ Upper window X₂ Light /shelf Lower window S FIGURE P4.1 And Not allowed As shown, the window directly above the light shelf is 2-ft high and the window directly below is 4 ft. What should the dimensions X₁ and X₂ be to be sure that no direct sunlight ever enters the space at solar noon?

Introductory Circuit Analysis (13th Edition)

13th Edition

ISBN:9780133923605

Author:Robert L. Boylestad

Publisher:Robert L. Boylestad

Chapter1: Introduction

Section: Chapter Questions

Problem 1P: Visit your local library (at school or home) and describe the extent to which it provides literature...

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