 
| Mission
Statement
We,
the students of the Environmental Studies Senior Seminar
hope to educate and inspire students, faculty and staff
of Mount Holyoke College through our efforts and research
contained within this website. We aim to achieve a more
sustainable campus by promoting environmental responsibility,
conservation of resources, energy efficiency, and increased
reliance on renewable energy sources. |
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Lighting
Beyond
the Bulb
Daylighting, Control, & Other Factors
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Daylighting
Feeling of more space
Potential for 70% reduction in lighting near windows
Just 1 sq. foot of direct sunlight can actually illuminate 200 sq. feet of interior
space if distribution is good
Concerns:
Increased initial 1st costs
heating and cooling worries
Misc. Lighting
Offices tend to use a uniform lighting level throughout the floor, even if unnecessary
Fixtures
Can affect the efficiency of the light
Poorly designed will absorb light
Specular reflector
Less bulbs = more efficient
The reflector can be added in the place of a few bulbs in a multi bulb lamp,
allowing for a 50% energy use reduction while keeping 60-80% of the initial light
output quality
Lighting Control
Personnel sensors
Senses if people are present in the room
Photocell switches
Senses the amount of natural light present
Remote/Central control
Lighting controlled by one person in one place
Timers
Can be set to automatically turn off after a certain time
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This page
was created by Sandra
Kaminskas '04 in
Environmental Studies 390,
Senior Seminar, Spring Semester 2004
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