Escola Secundária de Loulé
Energy is an important factor on our daily life. In everything that we do, there are always energy exchanges between systems. The simple fact the we breath or even think, is responsible for a large amount of processing in these exchanges.
Rational use of energy in houses and schools is a major concern in our time. Since most electric power is still produced in thermoelectric power plants using fossil fuels, waist of electric energy will be a way of accelerating fossil fuel consumption and also an extra contribution to global warming, since the fossil fuels that are burned to produce electric energy produce carbon dioxide, is the major atmospheric component that we can consider responsible for global warming. Nuclear Power Plants are still not a solution because, besides the security problems, fission depends on uranium and uranium is not renewable.
In our houses, schools and cars, energy is always present.
We can think of several ways to optimize energy consumptions in our daily life.
For instance in house construction there are several things that have to be thought that can reduce energy consumption.
The house should be prepared in order to achieve the higher thermal insulation that is possible. This can be done by using double walls, and double glass windows. In the first case the low thermal conductivity of air or a polystyrene layer between the two wall layers can help to prevent easy energy transfer in or out of the house. In double glass windows this is guaranteed by the air layer between the two glasses.
A solar collector for water heating
We can also use local energy resources like sunlight to increase energy use efficency.
In our houses, schools and cars, energy is always present.
Rational use of energy in houses and schools is a major concern in our time. Since most electric power is still produced in thermoelectric power plants using fossil fuels, waist of electric energy will be a way of accelerating fossil fuel consumption and also an extra contribution to global warming, since the fossil fuels that are burned to produce electric energy produce carbon dioxide, is the major atmospheric component that we can consider responsible for global warming. Nuclear Power Plants are still not a solution because, besides the security problems, fission depends on uranium and uranium is not renewable.
A nuclear power plant close to Berlin.
In our houses, schools and cars, energy is always present.
We can think of several ways to optimize energy consumptions in our daily life.
For instance in house construction there are several things that have to be thought that can reduce energy consumption.
The house should be prepared in order to achieve the higher thermal insulation that is possible. This can be done by using double walls, and double glass windows. In the first case the low thermal conductivity of air or a polystyrene layer between the two wall layers can help to prevent easy energy transfer in or out of the house. In double glass windows this is guaranteed by the air layer between the two glasses.
A solar collector for water heating
We can also use local energy resources like sunlight to increase energy use efficency.
In our houses, schools and cars, energy is always present.
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