A workshop 100 m x 50 m is to be illuminated with intensity of illumination being 50 lux. Determine (a) the number of lamps required and (b) design a suitable scheme of lighting if coefficient of utilization = 0.9; maintenance factor = 0.7 and efficiency of lamps = 80 lm/W. Use 100-W lamps. [50 lamps

A workshop 100 m x 50 m is to be illuminated with intensity of illumination being 50 lux. Determine (a) the number of lamps required and (b) design a suitable scheme of lighting if coefficient of utilization = 0.9; maintenance factor = 0.7 and efficiency of lamps = 80 lm/W. Use 100-W lamps. [50 lamps

Electricity for Refrigeration, Heating, and Air Conditioning (MindTap Course List)

10th Edition

ISBN:9781337399128

Author:Russell E. Smith

Publisher:Russell E. Smith

Chapter16: Installation Of Heating, Cooling, And Refrigeration Systems

Section: Chapter Questions

Problem 2RQ

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