Solar
performance
The objective of this experiment is to find a distance
relationship between solar cell’s power output and its angle of incident with
sunlight. To get reading that encompass the full range of the multimeter solar
cells were attached and reading of multimeter has been measured. Because the
sun approximate 90 hour to move 90 degrees, it was thought that changing the
angle of the solar cells in a short period of time would yield better result than
taking measurements at timed increments during one day. A solar cell was
measured from horizontal situation, 15º, 30º, 45º, 60º, 75º and vertical
situation. It’s easy to read the angle at which solar panel was facing with
respect to the sun from 9.00am until 3.00pm. The solar cell lying in the plane
perpendicular to the sun.
The cells were
then connected to a fluke multimeter and voltages current were collected at
each whole degree rotation from 0 degree to 90 degree. At that time the sun is
facing north. 10 Wp solar sell has been used for this test. At 10.00am the
highest voltage is 19.17 with the current44.6mA at the 30 degree angle. At
11.00am the highest voltage is 19.23 with the current 62.1mA at 45 degree
angle. At 1.00pm the highest voltage is 19.5 with the current 123.7mA at 15
degree angle. To get the best solar performance we need to take a reading 1
hour before and 1 hour after test.
From the result
were that the solar cell captured the most sunlight facing north at horizontal
situation 15 degree angle that tilt the solar cell. The highest reading was
21.0V (VOC) when exposed to solar radiation and the highest current was
0.141A (ISC) at noon and 1.00pm. The highest readings were mostly recorded
in the north direction.
From that the solar horizontal cells facing the sun directly 90
degree would be the most efficient.
|
Time
|
Voltage
(V)
|
|
9.00 am
|
19.57
|
|
10.00 am
|
19.17
|
|
11.00 am
|
19.15
|
|
12.00 am
|
19.96
|
|
1.00pm
|
21
|
|
2.00pm
|
21
|
|
3.00pm
|
21
|
Table
4.1: Solar Performance Test
Time: 9.00am
|
Position
|
Open
Circuit Voltage (V)
|
Shirt
circuit Current (mA)
|
|
Horizontal
|
19.59
|
35.0
|
|
15º
|
19.59
|
37.6
|
|
30º
|
19.57
|
37.9
|
|
45º
|
19.53
|
37.9
|
|
60º
|
19.48
|
37.8
|
|
75º
|
19.30
|
35.7
|
|
Vertical
|
19.55
|
23.5
|
Table
4.2: Solar Performance Test 9.00am
Time: 10.00am
|
Position
|
Open
Circuit Voltage (V)
|
Shirt
circuit Current (mA)
|
|
Horizontal
|
19.03
|
40.7
|
|
15º
|
19.14
|
44.7
|
|
30º
|
19.17
|
44.6
|
|
45º
|
19.15
|
43.3
|
|
60º
|
19.16
|
41.5
|
|
75º
|
19.10
|
39.2
|
|
Vertical
|
18.63
|
29.0
|
Table
4.3: Solar Performance Test 10.00am
Time: 11.00am
|
Position
|
Open
Circuit Voltage (V)
|
Shirt
circuit Current (mA)
|
|
Horizontal
|
19.15
|
51.7
|
|
15º
|
19.20
|
55.6
|
|
30º
|
19.22
|
58.0
|
|
45º
|
19.23
|
62.1
|
|
60º
|
19.21
|
62.5
|
|
75º
|
19.19
|
60.0
|
|
Vertical
|
18.63
|
34.8
|
Table
4.4: Solar Performance Test 11.00am
Time: 12.00am
|
Position
|
Open
Circuit Voltage (V)
|
Shirt
circuit Current (mA)
|
|
Horizontal
|
19.96
|
123.6
|
|
15º
|
19.97
|
130.0
|
|
30º
|
19.88
|
129.0
|
|
45º
|
20.4
|
130.0
|
|
60º
|
20.4
|
118.1
|
|
75º
|
20.4
|
101.3
|
|
Vertical
|
20.0
|
62.9
|
Table
4.5: Solar Performance Test 12.00am
Time: 1.00pm
|
Position
|
Open
Circuit Voltage (V)
|
Shirt
circuit Current (mA)
|
|
Horizontal
|
21.0
|
140.4
|
|
15º
|
21.0
|
135.5
|
|
30º
|
20.9
|
130.2
|
|
45º
|
20.7
|
130.1
|
|
60º
|
20.7
|
129.2
|
|
75º
|
20.6
|
106.2
|
|
Vertical
|
20.2
|
78.0
|
Table
4.6: Solar Performance Test 1.00pm
Time: 2.00am
|
Position
|
Open
Circuit Voltage (V)
|
Shirt
circuit Current (mA)
|
|
Horizontal
|
19.5
|
122.3
|
|
15º
|
19.5
|
123.7
|
|
30º
|
19.4
|
113.6
|
|
45º
|
19.3
|
108.2
|
|
60º
|
19.1
|
93.0
|
|
75º
|
18.8
|
91.3
|
|
Vertical
|
18.4
|
88.6
|
Table
4.7: Solar Performance Test 2.00pm
Time: 3.00pm
|
Position
|
Open
Circuit Voltage (V)
|
Shirt
circuit Current (mA)
|
|
Horizontal
|
18.6
|
123.3
|
|
15º
|
18.6
|
125.0
|
|
30º
|
18.8
|
91.7
|
|
45º
|
18.3
|
88.7
|
|
60º
|
18.1
|
85.3
|
|
75º
|
17.6
|
78.8
|
|
Vertical
|
17.2
|
65.4
|
Table
4.8: Solar Performance Test 3.00pm
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