SOME ASPECTS OF EFFICIENT LIGHTING IN COMPACT BUILDINGS
by:Suraj yadav,
Student mechanical department (08-12),
Gec, Bhavnagar, gujart,
Email- sry3091@gmail.com
Key words: efficient lighting system, TOB(Transparent object similar to bottle), light bulb, design of TOB.
1.0 Introduction:
Solar energy is the most readily available source of energy. It does not belong to anybody and is, therefore, free. It is also the most important of the non-conventional sources of energy because it is non-polluting and, therefore, helps in lessening the greenhouse effect.
Solar energy has been used since prehistoric times, but in a most primitive manner. Before 1970, some research and development was carried out in a few countries to exploit solar energy more efficiently, but most of this work remained mainly academic. After the dramatic rise in oil prices in the 1970s, several countries began to formulate extensive research and development programs to exploit solar energy.
Besides affecting the physical and emotional well-being of the building occupants, a building's interior lighting system is both a dominant consumer of electrical energy and a major source of internal heat. In the United States about one-quarter of the electricity budget is spent on lighting or more than $37 billion annually. In commercial buildings it normally accounts for more than 30% of the total electrical energy consumed. Yet much of this expense can be avoided. [1]
Specifying a high quality energy efficient lighting system that utilizes both natural and electric sources as well as lighting controls can provide a comfortable yet visually interesting environment for the occupants of a space. Recently developed energy efficient lighting equipment such as compact fluorescent lamps and "soft-start" electronic ballasts can be used to help cut lighting operational costs 30% to 60% while enhancing lighting quality, reducing environmental impacts, and promoting health and work productivity.
Different experiments are preformed for the same respects, stating for energy efficiency with collaboration of solar and lighting system in homes and buildings.
In this paper the author suggested some method of efficient lighting in the multistory buildings which are compact and utilize the lighting and usually in day periods.
2.0 Resent development of solar bottle bulb
As simple as it sounds, a one-liter plastic bottle filled with purified water and some bleach could serve as a light bulb for some of the millions of people who live without electricity. Originally developed by MIT students, the "solar bottle bulb" is now being distributed by the My Shelter Foundation to homes throughout the Philippines. The foundation's goal is to use this alternative source of daylight to brighten one million homes in the country by 2012. In order to make the water bottles "light up," holes are cut in the metal roofs of homes and a bottle is placed and sealed into each hole so that its lower half emerges from the ceiling. The clear water disperses the light in all directions through refraction, which can provide a luminosity that is equivalent to a 55-watt electric light bulb, according to the MyShelter Foundation. The bleach prevents mold growth so that the bulbs can last for up to five years. Although the solar bottle bulb only works during the day, it can meet the needs of many of the people in Manila, Philippines, and other cities, where the homes are so close together that very little sunlight can enter through the windows. As a result, the homes are dark even during the day.
The solar bottle bulbs' advantages include sustainability and safety; compared with candles or faulty electrical connections, they aren't a fire hazard. The bulbs are also inexpensive to make and install, and of course have no operating costs while in use. The MyShelter Foundation is promoting the solar bottle bulbs as the Isang Litrong Liwanag ("A Liter of Light") project. In Manila, the city government paid for the bulbs while the foundation is training residents on how to make and install them. [2]
Thus this concepts principal can be utilized in building and malls for lighting purposes
2.1 Basic necessity for the solar bottle lighting system:
As simple as it sounds, a one-liter plastic bottle filled with purified water and some bleach could serve as a light bulb.
It just need clear refraction medium, purified water and special bleach. This all three necessity can be provided easily anywhere around the building are seeking of sunlight.
Thus this lighting can transferred to area or the required region through the principal of reflection and refraction with the help of mirrors and reflectors.2.2 BUILDING CONCEPTUAL DESIGN:
The conceptual design for the building which are dust proof or so compact which can’t use large window space for natural lighting.
Some implementation figures are shown on the same concept.
Transparent object similar to bottle are attached at the roof and the side roof in case of ground floor compartments , this object will act same as the empty bottles earlier discuses.
TOB 1 denotes the upper one which is on the roof.
And TOB 2 denotes the object on the side roof.
Their upper parts are exposed to the sunlight and other part is inside the building which gives lighting.
2.3 DESIGN OF TOB 1 AND TOB 2:
This will be fitted on the top of the roof.
Now TOB 2:
This will be fitted on the side roof for the floors other then the top most.
In this way the solar lighting can be used for the lighting purposes, and rather to extend the lighting in whole are we can use the combination of mirrors and the reflectors.
3.0 CONCLUSIONS :
It will lower the energy bills
Non-polluting
A little investment is required
4.0 REFERENCES:
3. http://ecopreneurist.com/2011/09/14/an-innovative-and-cheap-solar-light-bulb-lights-homes-in-manila/
http://www.reliant.com/en_US/Page/Generic/Public/esc_oma_boosting_lighting_efficiency_reflectors_maintenance_bus_gen.jsp\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\
by SURAJ YADAV, MECHANICAL ENGG. GEC BHAVNAGAR, GUJARAT,
email: sry3091@gmail.com.
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Wah Suraj
ReplyDeleteVery good yaar
jordar...
ReplyDeletewelldone (as olwyz )
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