Respuestas para la especialidad JA de Energía renovable
Nivel de destreza
2
Año
2014
Version
26.06.2024
Autoridad de aprobación
Asociación General
1
La energía renovable es energía cuyos orígenes se renuevan de forma continua y natural sin intervención humana. Ejemplos de fuentes de energía renovables incluyen la luz solar, el viento y las olas.
2
A medida que la demanda de recursos energéticos sigue aumentando, la humanidad se enfrenta al dilema de agotar los recursos de la tierra para satisfacer la demanda. Con el descubrimiento de procesos diseñados para aprovechar la energía limpia y renovable, el agotamiento de tales recursos no será un problema, ya que se reponen naturalmente. Además, estos procesos tienen un impacto ambiental mucho menor que los métodos convencionales utilizados para aprovechar recursos como el petróleo.
3
3a
La energía eólica es la energía que se ha convertido del movimiento natural del viento mediante el uso de dispositivos tales como turbinas eólicas. Es limpia, ampliamente disponible y no produce emisiones de gases de efecto invernadero.
3b
La bioenergía es energía de biomasa, que es energía de materia orgánica. La madera, las plantas y hasta los humos de los vertederos se pueden usar como fuente de energía de biomasa.
El etanol es un combustible hecho de maíz, caña de azúcar y otras fuentes utilizadas en automóviles y combustible para aviones.
3c
La energía geotérmica es la energía que se crea y almacena en la tierra. Se puede usar para calentar grandes áreas, recuperar minerales y calentar procesos industriales.
3d
La energía hidroeléctrica es la energía que proviene del agua que cae. Comúnmente se crea la electricidad de las presas o la ejecución de las turbinas de generación del río. Otros usos son el riego y (en tiempos de los pioneros) el agua que caía se aprovechaba directamente con ruedas hidráulicas para la operación de molinos harineros y aserraderos.
3e
La energía marina es la energía que proviene del océano, que puede ser responsable de dos tipos de energía: la energía mecánica de las mareas y las olas, y la energía térmica del calor del sol. Se puede usar para generar electricidad.
3f
La energía solar es luz y calor que se deriva del sol y se recolecta a través de paneles solares. Se puede usar para generar electricidad para una variedad de aplicaciones útiles.
4
La primera forma de energía renovable fue probablemente la quema de biomasa en forma de madera y estiércol seco de animales. El combustible podría almacenarse y la energía estaba disponible para su uso inmediato, pero la energía no podría mantenerse almacenada para después.
5
- a. Una presentación
- b. Un video
- c. Un juego interactivo
- d. Un discurso
- e. Una exhibición
For this requirement, you will need to research the history of renewable energy, and then present your findings using one of the techniques listed in the requirement.
6
The source of most renewable energy comes from the sun.
7
Renewable energy such as solar energy can be used to supply power larger communities through a solar power station. Tanks of molten salt can be used to store the energy harnessed from the sun for the purpose of generating electricity during cloud cover, or through the night. Renewable energy can also be used for agricultural purposes, providing social services, education, and health care.
El combustible hecho de fuentes biológicas como el maíz ahora es un ingrediente común en el combustible automotriz.
La energía (electricidad) hidroeléctrica es una energía renovable utilizada en dondesea que la red alcanza.
8
Existen incentivos positivos para que los gobiernos inviertan en fuentes de energía renovables.
The Overall Impact on the Planet
Most sources of renewable energy pose no noxious by-products (the main exception being the burning of biomass). As a result, there is less pollution, waste, and less of a threat concerning extremely destructive natural disasters.
The reality of global warming has also become a considerable factor with regard to the harmful effects of carbon dioxide (CO2) on the balance of the planet’s ecosystem. The less CO2, the better of our planet would be.
The Failure of its Technology More Minimized
The technology used to harness energy from renewable resources is essentially stable. As a result, insurance companies are more inclined to issue warranties for performance of panels and turbines for 20 years or more. Once these items are installed, they can be relied upon to start working straight away and not stop for years.
9
Although renewable energy has many advantages with regard to its environmental impact, there are concerns that must be considered as well. The ability to supply energy to meet the demand may pose a problem. Providing renewable energy requires designing and building equipment that will harness and extract it once found. The entire manufacturing process must be considered as well.
The general population has grown accustomed to current resources such as oil for heating. As such, although the development of an cleaner, alternative means that present less of an environmental impact may not gain the momentum desired. Some renewable resources have not been around long and tested long enough for individuals to give up what they are comfortable with for something that may be cleaner.
10
- a. Reloj de papa
- b. Motor alimentado por energía solar o eólica
- c. Ascensor hidroeléctrico
- d. Su elección
Note: Internet search engines provide tons of information when you type one of the sources of renewable power and “science experiment.” Thus for hydropower you would search for “hydropower science experiment.”
11
Wind - to move ships through the waters.
“But the Lord sent out a great wind into the sea, and there was a mighty tempest in the sea, so that the ship was like to be broken.”
In Job, Satan used a wind power for evil.
“And, behold, there came a great wind from the wilderness, and smote the four corners of the house, and it fell upon the young men, and they are dead; and I only am escaped alone to tell thee.”
Biomass - from firewood
“And the sons of Aaron the priest shall put fire upon the altar, and lay the wood in order upon the fire: And the priests, Aaron's sons, shall lay the parts, the head, and the fat, in order upon the wood that is on the fire which is upon the altar.”
“And when he came to the gate of the city, indeed a widow was there gathering sticks. And he called to her and said, “Please bring me a little water in a cup, that I may drink.” And as she was going to get it, he called to her and said, “Please bring me a morsel of bread in your hand.”
So she said, “As the Lord your God lives, I do not have bread, only a handful of flour in a bin, and a little oil in a jar; and see, I am gathering a couple of sticks that I may go in and prepare it for myself and my son, that we may eat it, and die.”
“And Elijah answered and said unto them, If I be a man of God, let fire come down from heaven, and consume thee and thy fifty. And the fire of God came down from heaven, and consumed him and his fifty.”
