PV Gap

Kristin Said:

solar energy is energy that is transferred from warmer to cooler materials?

We Answered:

That sure is a valid statement but it ain't no question.

Rafael Said:

What materials conduct the most solar energy?

We Answered:

Air conducts solar energy because it allows it to pass through.

For a solar cooker you want to deflect or concentrate the solar energy, and maybe focus it onto something that absorbs the energy to create heat.

To deflect, you need a reflective surface, something with low emissivity and high reflectivity.
To absorb you need a dark or rough surface, high emissivity, low reflectivity

Christopher Said:

how to construct a model to trap a solar energy and list the materials used?

We Answered:

Ok you need a bowl of water and the sun. The energy is trapped (at least temporarily) in the water, as heat.

Jay Said:

please can anyone give me a list of the materials used for solar energy generation?

We Answered:

I think the follwing links will help:

http://en.wikipedia.org/wiki/Solar_cells

http://en.wikipedia.org/wiki/Photo_elect…

All metals are photo electric however the specific frequency and energy level differs.

Vicki Said:

Assume that the earth receives 4.45x 1014kJ/s of solar energy. What mass of solar material?

We Answered:

144,000,000 kgm

Terri Said:

What are some properties of materials that get hot when solar energy hits them?

We Answered:

I don't know if this is what your looking for but: I fly so you are aware of up drafts and down drafts. When I'm over brown dirt you can expect a updraft if the sun is shining on it. The jest is that the dirt absorbs the suns ray's and heats up more than, lets say green grass around it, this solar heating warms the air making it rise thus the updraft. This usually occurs over dark colours browns and blacks as asphalt.