SOLAR ENERGY BASICS PART 1

Question 1

8 thermodynamic pathways for solar energy conversion

Answer 1

Solar thermal conversion
Solar thermo-chemical conversion
Solar thermo-mechanical conversion
Solar electric conversion
Solar thermal electric conversion
Solar chemical conversion
Stec+electrolysis
Solar electrochemical conversion

Question 2

Is the energy from the sun per unit time

Answer 2

Solar constant

Question 3

Suggested value for solar constant

Answer 3

1367 W/m2

Question 4

Old solar constant value

Answer 4

1353 W/m2

Question 5

Is computer angles are in radians and not degrees?

Answer 5

Yes

Question 6

Total solar radiation
Scattered to space
Direct radiation
Absorb by the atmosphere
Reflected to space
Diffuse radiation
Total radiation absorb by the eart

Answer 6

1370
80
500
190
350
250
750

Question 7

Received from the sun without having been scattered by the atmosphere

Answer 7

Beam or direct solar radiation

Question 8

Received from the sun after it’s direction has been changed

Answer 8

Diffuse radiation

Question 9

Sum of the beam and diffuse

Answer 9

Total solar radiation

Question 10

Invented by John Francis Campbell, to record hours of bright sunshine

Answer 10

Campbell strokes recorder

Question 11

Measuring total solar radiation

Answer 11

Pyranometer

Question 12

Measuring direct solar radiation

Answer 12

Pyrheliometer

Question 13

Measuring diffuse Solar radiation

Answer 13

Pyranometer with shaded ring

Question 14

Time based on the apparent angular motion of the sun

Answer 14

Solar time

Question 15

Does not coincide with local time

Answer 15

Solar time

Question 16

The angular location North and south

Answer 16

Latitude

Question 17

Angular position of the sun at solar noon

Answer 17

Declination

Question 18

Angle between the plane of the surface

Answer 18

Slope

Question 19

The deviation of the projection on a horizontal plane

Answer 19

Surface azimuth angle

Question 20

Angular displacement of the sun east to west

Answer 20

Hour angle

Question 21

Angle between the beam radiation

Answer 21

angle of incidence

Question 22

Angle between the vertical and the line

Answer 22

Zenith angle

Question 23

Angle between the horizontal and the line

Answer 23

Solar altitude angle

Question 24

Angular displacement from south of the projection

Answer 24

Solar azimuth angle