The document proposes using instantaneous light reflection techniques to enhance the efficiency of solar photovoltaic cells. It describes 5 case studies: 1) measuring an outdoor solar panel, 2) indoor measurements without and with a light source, 3) adding an aluminum reflector, 4) using an instantaneous LED light source with an aluminum reflector, and 5) combining aluminum and mirror reflectors. The indoor experiments with instantaneous light sources and reflectors showed higher solar panel outputs than outdoor measurements, demonstrating the potential to continuously generate power using this method.

1. INSTANTANEOUS LIGHT REFLECTION
TECHNIQUE FOR ENHANCEMENT OF
SOLAR PV CELL EFFICIENCY
19765A0212 Y. Srikanth
19765A0207 M. Padmavathi
17761A0250 Sk. Rajia Khasim
Under the guidance of
Mr. M. RAJA NAYAK
Asst. professor

2. OBJECTIVE
The implementation of this project is to obtain alternative design modifications
of solar panels with Instantaneous light reflector arrangements to nullify the
continuous power generation problem from the panel and enhancement of the overall
solar panel efficiency.
Solar panel working
When light reaches the p-n junction, the light photons can easily enter in the junction,
through very thin p-type layer. The light energy, in the form of photons, supplies
sufficient energy to the junction to create a number of electron-hole pairs. The incident
light breaks the thermal equilibrium condition of the junction. The free electrons in the
depletion region can quickly come to the n-type side of the junction.
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3. CASE STUDY 1: Solar Panel Measurement Under Outdoor Conditions
 The solar power was measured at normal outdoor climatic conditions to examine
the performance of proposed instantaneous light reflection technique. For all
experimental case studies following solar panel details shown in figure are used
for easy analysis:
 Maximum Power output: 10W
 Open Circuit Voltage : 21.50
 Short Circuit Current : 0.62Amp
The measurement of about rated solar panel at outdoor conditions was observed in
figure and observed that the panel open circuit voltage and maximum current
readings during 12.00 PM to 1.00 PM afternoon are 20.0 volts and 0.111 amp
respectively. Usually, it is observed that the luminous intensity of 1 lakh luminous lux
is available from sun under dry outdoor climatic conditions.
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4. CASE STUDY 2: With Light Source and Without Light Reflector
Arrangement
 The experimental set up consists solar panel with its light source placed on the
top of the panel in a closed volume to observe the effect of light source on the
solar panel in indoor conditions.
 Solar panel with light source and without reflector arrangement and its
measurements
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5. CASE 3: With Light Source and Aluminum material Light Reflector
Arrangement on walls
The same experimental study was carried out with considering the light reflecting
arrangement on the inside of the walls of the indoor container and the experimental
set up is observed from figure .
Solar panel with light reflector arrangement and its measurements.
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6. CONCEPT OF INSTANTANEOUS LIGHT REFLECTION
 Instantaneous light reflection concept methodology is a new methodology proposed
in this project work. Instantaneous lights contains raising energy characteristics.
 Theis new concept with suitable selection of light reflector materials may offer
enhanced panel efficiency. Further, the application if instantaneous light source
supports continuous power generation from the panel.
 The design modification with irregular type light reflection methodology may
support further enhanced panel efficiency. offers efficiency cos material explained
in physics that the light reflections depend on the nature of interface structures for
different applications.
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7. CASE 4: With Instantaneous Light Source with Aluminum Light
Reflector Arrangement 7
1. It is clear evident from table that, the instantaneous light source effect with aluminium
light reflector arrangement at indoor conditions shows remarkable solar panel output power
measurements.
2. The above measurements all are carried out at maximum of 4200 lux luminous intensity
only which is very less in magnitude compared to sun luminous intensity and may be
negligible.
3.This confirms that, the indoor experimental arrangements compared to outdoor sun
exposure measurements provides remarkable results.

8. Item /Discerption
Panel Open
Circuit Voltage
(volts)
Panel current
Magnitude (amp)
Panel Output Power
(watts)
Continuous 1 Instantaneous LED bulb source
Consideration
18.8 0.016 0.30
Continuous 2 LED bulb source Consideration 19.05 0.028 0.53
Continuous 2 Instantaneous LED bulb source
Consideration
19.08 0.031 0.59
Continuous 3 LED bulb source Consideration 19.21 0.039 0.74
Continuous 2 LED bulb source and 1
instantaneous LED bulb source combination
consideration
19.32 0.044 0.85
Continuous 1 LED bulb source and 2
instantaneous LED bulb source combination
consideration
19.38 0.047 0.91
3 instantaneous LED bulb source combination
consideration
19.44 0.050 0.972
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Solar Panel Measurements for various experimental arrangements under Instantaneous
Light Source Consideration with aluminium light reflector material arrangement.

9. CASE 5: With Instantaneous Light Source with Aluminum and Mirror
Light Reflectors Arrangement
 The proposed instantaneous light source effect at indoor experimental studies was expanded with
the consideration of combination of aluminium and mirror material as light reflector arrangement
under instantaneous light source effect. The experimental measurements are observed for
continuous one hour instantaneous light source effects and the experimental arrangement and panel
measurements are observed in figure
 Solar panel with aluminium & mirror light reflector arrangement and its measurements.
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10. Comparison of solar panel output power variation for Indoor
Instantaneous Light source effect and out door effects.
Case Study Actual Solar Panel Output
Power in Watts
Proposed Case Study
Solar Panel Output
Power in Watts
Without Any Light Reflector
Arrangement & With
Continuous Light Source
10 0.0875
With Aluminum Light
Reflector Arrangement & With
Instantaneous Light Source
10
0.972
With combination of
Aluminum, Mirror Light
Reflector Arrangement & With
Instantaneous Light Source
10 9.87
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11. 1.The experimental observations are carryout for various combination consideration
discussed in above case 3.
2. The experimental measurements show outstanding measurements compared to case
3and the maximum panel output measurements are recorded at panel open circuit
potential of 21 volts and current magnitude of 0.47 amp.
3. This confirms that, the instantaneous light source with consideration of two i.e.
aluminium and mirror as light reflectors at indoor conditions achieves similar solar
panel measurements at outdoor sun exposure solar panel measurements.
4. . Also, the comparison of solar panel output power measurements for above discussed
case studies are listed in table 3 for easy performance analysis of proposed
instantaneous light source effect.
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