lOMoARcPSD|16248954
Chapter 2
Review of Related Literature and Studies
A. Foreign Literature
We know that the law on conservation of energy states that, energy cannot be created
nor destroyed but can be transformed from one form to another. According to Katoch (2012),
“humans are able to generate approximately 150W of power while riding bicycle.” If we can
make use of this energy, we would be able to power many electronic devices. Nowadays, we
know that many of people who go to the gym uses stationary bike as a means for losing weight.
Also, there are quite a number of people here in the Philippines that uses bicycle as a mode of
transportation. That’s why generating power from the energy we release can make quite a
difference to the world instead of continuing wasting our limited resources.
Power generated by pedaling can be converted from mechanical to electrical energy by
using either dynamo or alternator. Small powered lighting devices can be charged using dynamo
and can be used in the night by students for study purposes. This principle can be extended to
power mobiles, iPods, laptops etc.
Power can be also generated from the rotation of the wheels of alternator vehicles like
bikes and cars, where there is a possibility of generating more power. The generated power can
be either used in the same vehicle or can be stored in a battery for powering some other
devices. Riding bicycle helps in maintaining a good physic and along with its power can be also
generated (Katoch, 2012).
There are various renewable energy sources such solar, wind, hydropower etc.
Developing and exploiting renewable energy sources using modern conversion technologies can
, lOMoARcPSD|16248954
be highly responsive to national and international policy goals formulated because of
environmental, social, and economic opportunities, objectives, and concerns. The following are
the enumerated advantages of renewable sources of energy.
•Diversifying energy carriers for the production fuels, electricity, and heat;
enhancing energy security; and reducing the long-run price of fuels from
conventional sources;
•Reducing pollution, environmental emissions, and safety risks from
conventional energy sources that damage human health, natural systems, crops,
and materials;
• Mitigating greenhouse gas emissions down to levels that can be sustained;
• Improving access to clean energy sources and conversion technologies,
thereby helping to meet the Millennium Development Goals (MDGs) while taking
advantage of the local availability of renewables; and
•Reducing dependence on and minimizing spending on imported fuels
(Turkenburg, 2011, p. 77).
In the above enumerated examples of advantages that can be driven from renewable
sources of energy, we can infer that the bottom line of it is that we can help solving
environmental problems the most, not to mention that by doing so, in the long run the one who
will really benefit is the human population. But while renewable sources are basically free and
unlimited, it has its disadvantages. The first disadvantage is the cost. “Although the energy from
renewable sources is most often available for free, renewable energy conversion technologies
are often quite capital-intensive...” (Turkenburg, 2011). This can make renewable sources less
Chapter 2
Review of Related Literature and Studies
A. Foreign Literature
We know that the law on conservation of energy states that, energy cannot be created
nor destroyed but can be transformed from one form to another. According to Katoch (2012),
“humans are able to generate approximately 150W of power while riding bicycle.” If we can
make use of this energy, we would be able to power many electronic devices. Nowadays, we
know that many of people who go to the gym uses stationary bike as a means for losing weight.
Also, there are quite a number of people here in the Philippines that uses bicycle as a mode of
transportation. That’s why generating power from the energy we release can make quite a
difference to the world instead of continuing wasting our limited resources.
Power generated by pedaling can be converted from mechanical to electrical energy by
using either dynamo or alternator. Small powered lighting devices can be charged using dynamo
and can be used in the night by students for study purposes. This principle can be extended to
power mobiles, iPods, laptops etc.
Power can be also generated from the rotation of the wheels of alternator vehicles like
bikes and cars, where there is a possibility of generating more power. The generated power can
be either used in the same vehicle or can be stored in a battery for powering some other
devices. Riding bicycle helps in maintaining a good physic and along with its power can be also
generated (Katoch, 2012).
There are various renewable energy sources such solar, wind, hydropower etc.
Developing and exploiting renewable energy sources using modern conversion technologies can
, lOMoARcPSD|16248954
be highly responsive to national and international policy goals formulated because of
environmental, social, and economic opportunities, objectives, and concerns. The following are
the enumerated advantages of renewable sources of energy.
•Diversifying energy carriers for the production fuels, electricity, and heat;
enhancing energy security; and reducing the long-run price of fuels from
conventional sources;
•Reducing pollution, environmental emissions, and safety risks from
conventional energy sources that damage human health, natural systems, crops,
and materials;
• Mitigating greenhouse gas emissions down to levels that can be sustained;
• Improving access to clean energy sources and conversion technologies,
thereby helping to meet the Millennium Development Goals (MDGs) while taking
advantage of the local availability of renewables; and
•Reducing dependence on and minimizing spending on imported fuels
(Turkenburg, 2011, p. 77).
In the above enumerated examples of advantages that can be driven from renewable
sources of energy, we can infer that the bottom line of it is that we can help solving
environmental problems the most, not to mention that by doing so, in the long run the one who
will really benefit is the human population. But while renewable sources are basically free and
unlimited, it has its disadvantages. The first disadvantage is the cost. “Although the energy from
renewable sources is most often available for free, renewable energy conversion technologies
are often quite capital-intensive...” (Turkenburg, 2011). This can make renewable sources less
