Term
|
Definition
simplest way to make use of the sun's energy
no outside energy is used |
|
|
Term
| 10 ways to use passive solar energy |
|
Definition
1.home faces south
2.outside walls and attics are well insulated
3.sout facing windows are big and the north facing windows are small
4. thermal mass: dark brick,stone or tile
5.drapes open in the day and closed at night
6.well placed vents to help with summer cooling
7.cracks are caulked to prevent energy losses
8.dirt banking on north side to deflect wind
9.wing walls,storm doors, weather strips, insulated doors and air locks
10. natural lighting should be used as much as much as possible |
|
|
Term
| advantages of using passive solar |
|
Definition
1. never run out
2. it doesn't let emmisions out
3. there doesn't have to be big buildings those spaces could be used for other things |
|
|
Term
| how does an active solar system work |
|
Definition
| flat plate collectors are installed on the sunny side with transparent cover. Water or air is circulated through pipes to absorb captured heat and carry it to a storage tank. Fans or pumps move heat to the various rooms |
|
|
Term
| what is the purpose of a solar thermal energy conversion? |
|
Definition
|
|
Term
| What are two methods studied to create energy in a STEC system? |
|
Definition
Distributed collector concept:solar energy is focus on tub e with heat-conducting oil. oil transfers its heat to water to produce steam
second method: mirrors focus sun on boiler and the radiant solar energy is abosorbed and used for producisng steam |
|
|
Term
| what disadvantages and advantages of STEC |
|
Definition
dis- cost, need a wide area
ad- renewable |
|
|
Term
|
Definition
|
|
Term
|
Definition
| a photon enters a solar cell and it will free am electron from its chemical bond within the cell making able to move around leaving a hole then a electron from a neighboring bond exchanges places |
|
|
Term
| what are ways that solar cells are used |
|
Definition
| power highway cell boxes offshore bouys and other remote devices |
|
|
