Across
- 5. The angle from the horizon that the solar module should be tilted. The angle should be equal to the latitude of the location. For example, if you are located at latitude of 40 degrees, the solar module should be tilted 40 degrees from the horizon.
- 10. The amount of solar radiation hitting a surface per unit of area over a given period of time. This is also referred to as solar irradiation, and is displayed in units of Wh/m^2 (watt-hours per meter squared).
- 11. The maximum solar energy available on Earth per unit area. Measured at high noon (when the Sun is directly overhead) on the equator and found to be 1376 W/m^2.
- 12. Gases such as carbon dioxide that inhibit thermal energy from escaping the Earth's atmosphere. These gases are necessary to moderate the Earth's temperature, but an overabundance of them can increase global warming. These gases are released by the burning of fossil fuels.
Down
- 1. The energy entering the solar module in units of Watt-hours, also referred to as Qin.
- 2. A Sun-facing wall of a house separated from the outdoors by glass and an air space, which absorbs solar energy and releases it towards the interior at night.
- 3. The amount of solar radiation hitting a surface per unit of area and displayed in units of W/m^2 (watts per meter squared).
- 4. The angle the solar water heater (or other solar module) is positioned above the horizontal. In this lesson, the angle is the same as your latitude.
- 6. Natural resources created by the decomposition of organic matter over millions of years.
- 7. A device that collects solar energy for heating or electrical applications. Examples include solar water heaters and photovoltaic (PV) panels.
- 8. The deterioration of rocks and soils due to wind and/or moving water. Erosion can be intensified by deforestation.
- 9. radiation: The electromagnetic radiation (ultraviolet and near-infrared wavelengths) that is emitted by the Sun. This energy is captured and employed by useful applications such as heating and electricity.