Especialidades JA/Combustibles alternativos/Respuestas

Combustibles alternativos

Nivel de destreza

2

Año

2014

Version

09.09.2025

Autoridad de aprobación

Asociación General

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1

Explicar la diferencia entre combustible convencional y combustible alternativo.

2

Describir brevemente los siguientes combustibles alternativos y sus beneficios:

2a

Combustible algal

2b

Bioalcohol

2c

Biodiésel

2d

Hidrógeno

2e

Electricidad

2f

Etanol

2g

Nitrógeno líquido

2h

Metanol

2i

Gas natural

2j

Metano no-fósil

2k

Energía nuclear

2l

Propano

2m

Aceite vegetal

3

Descubrir por lo menos tres razones de por qué combustible alternativo es importante.

A number of countries continue to seek alternative methods to reduce their dependency on conventional fuels, especially oil.

4

¿Cuáles son algunas de las ventajas de combustibles alternativos? ¿Cuáles son algunas de las desventajas?

Disadvantages:

1. More expensive to produce than traditional fuels.
2. Some alternative fuels cannot be stored like traditional fuels.
3. Expensive to phase in based on current infrastructure.

5

Ilustrar por medio de dibujos, bosquejos o fotografías los elementos que componen el gas natural.

Natural gas is a fossil fuel formed when layers of buried plants, gases, and animals are exposed to intense heat and pressure over thousands of years. The energy that the plants originally obtained from the sun is stored in the form of chemical bonds in natural gas. Natural gas is a burnable mixture of hydrocarbon gases, made up primarily of methane. It also contains ethane, butane, propane, and pentane before it is refined.

6

Explicar la diferencia entre gas natural comprimido y gas natural licuado.

Compressed natural gas (CNG) is a fossil fuel used as a viable alternative to gasoline, diesel, or propane. It is colorless, odorless, and tasteless. CNG is made by compressing natural gas (which is mainly composed of methane, CH4), to less than 1 percent of the volume it occupies at standard atmospheric pressure. It is stored and distributed in hard containers at a pressure of 20–25 MPa (2,900–3,600 psi), usually in cylindrical or spherical shapes.

Liquefied natural gas is natural gas that has been transformed into a liquid state. This is done for storage and transportation purposes. It takes up about 1/600th the volume of natural gas in the gaseous state. The (volume-based) energy density of LNG is approximately 2.4 times greater than that of CNG which makes it economical to transport natural gas by ship in the form of LNG. The energy density of LNG is comparable to propane and ethanol but is only 60 percent that of diesel and 70 percent that of gasoline.

7

Dibujar los pasos o ver una animación electrónica que muestra el proceso de conversión de combustible alternativo utilizado en la industria automovilista.

This process refers to a conversion system used for automobiles. This system is used to modify vehicles and engines to operate normally on different fuels other than the original fuel the automobile was originally designed for. The majority of these conversions involve the reconfiguration of a gasoline or diesel vehicle or engine to function on electricity, propane, gas, alcohols, or a blend of conventional and alternative fuels.

8

Describir cómo opera un vehículo de propano.

A propane vehicle operates in a similar fashion to a common gasoline vehicle. From its initial liquid state, the propane is converted to a gas. The gas is then moved through line to a fuel-air mixture. Once mixed, it is then injected into a sequentially timed motor for it to burn efficiently and clean.

9

Discutir en un grupo la importancia de encontrar métodos de combustibles alternativos.

This is an open group discussion with a unit counselor and/or the instructor teaching the honor is recommended. Discussions should cover enough material.

10

Hacer dos de las siguientes actividades individualmente o en un grupo:

	Tip for earning from home during the pandemic
	10b and 10d are the most appropriate options for earning this at home. 10c can be done via video conferencing.

10a

Visitar una instalación que produce un combustible alternativo de su elección. Preparar y dar una presentación oral de esta actividad.

10b

Hacer un proyecto científico que demuestra cómo un combustible alternativo se usa.

10c

Tener alguien que trabaja en la industria de combustibles alternativos hablar con su grupo.

10d

Calcular y demostrar el ahorro de costos para los vehículos modernos híbridos/de combustible alternativo. Demostrar sus hallazgos en una presentación, exhibición o informe verbal.

11

Discutir en un grupo los siguientes textos y cómo relacionan con combustibles alternativos:

Note: This is an open question designed to allow pathfinders to think freely with the guidance of an instructor.

	Tip for earning from home during the pandemic
	Group discussion can be done with video conferencing.

11a

Salmo 24:1

"The earth is the Lord’s, and all its fullness, The world and those who dwell therein."

11b

Colosenses 1:16 y 17

"16 For by Him all things were created that are in heaven and that are on earth, visible and invisible, whether thrones or dominions or principalities or powers. All things were created through Him and for Him. 17 And He is before all things, and in Him all things consist."

11c

Juan 1:3

"All things were made through Him, and without Him nothing was made that was made."

References