Distribution of Light Intensities of a Solar Bottle Bulb

  • Luis Maria T. Bo-ot University of the Philippines Diliman College of Architecture
  • Cherry Dara S. Redulla University of the Philippines Diliman College of Architecture

Abstract

Solar bottle bulbs (SBB) have been proposed as an inexpensive, eco-friendly alternative to electric lighting in dense residential settlements typically found in urban areas. Interestingly, little testing has been done to verify a solar bottle bulb’s performance in terms of light quality. Sunlight with which the solar bulbs operate is dependent on local geographical and climatic conditions. This study aims to describe the amount of light output of a solar bottle bulb by plotting and investigating the distribution of light intensities transmitted indoors. This is done by measuring light levels at every one meter for every 15 degree angle from nadir, on two perpendicular planes to produce a polar graph. The polar graph indicates at which points light redistribution is at its highest intensity. Results from the data should provide insight into the effectiveness of the solar bottle bulb in terms of providing the minimum lighting requirements for a given space.

Author Biographies

Luis Maria T. Bo-ot, University of the Philippines Diliman College of Architecture
Dr. Luis Maria Bo-ot has a Bachelor of Science in Architecture degree from University of the Philippines Diliman, a Master of Science in Physics degree from the Peoples’ Friendship University of Russia in Moscow and a Doctor of Philosophy in Physics degree from the National Institute of Physics of UP Diliman. He is currently an Associate Professor in the College of Architecture of UP Diliman and is a practicing Architect.
Cherry Dara S. Redulla, University of the Philippines Diliman College of Architecture
Cherry Dara Redulla obtained her Bachelor of Science in Architecture degree from University of the Philippines Diliman in 2006. She is active in the profession with projects involving institutional buildings, architectural conservation, and fit-out of condominium units. She has also included teaching and graduate assistantship in her background experience. She is currently doing her thesis for a Master of Architecture degree in UP Diliman.
Published
2019-05-21
Issue
Issue Number 6
Section
Articles
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