ABSTRACT:
This project trial provides a novel small-scale solar harnessing
technology which increases environmental effectiveness while maintaining
optimal energy efficiency. Although modern solar panels are purposed in
producing clean energy, the materials and byproducts of solar cell
manufacturing are not eco-friendly. Thus, considering an organic,
renewable and energy efficient solar cell model is necessary.
Investigations explored multiple highly-photosynthetic algal species
which were later integrated into a controlled microbial fuel cell system
(MFC). The MFC1 contained algae culture
species, including Chlorella Vulgaris, Nannochloropsis, and
Spirulina . Parameters, such as periodic lipid yields, algal
biomass, and light absorption were assessed throughout the cultivation
process while maintaining a controlled environment. After 30 days of
cultivation, the culture was transferred to an anode chamber in a closed
loop small-scale MFC. Following the first day of algae transfer,
microwatt output was analyzed from independent test trials. Statistical
comparisons were drawn between electrical energy and light absorption,
finding a generally positive correlation. Thus, it is concluded that
mid-high algae concentrations significantly increased electrical
micro-wattage in highly absorptive algal cultures. The optimal electric
levels occurred at 286 A (absorbance) and 35 mW- Nannochloropsis,
123 A- Chlorella (30.2 mW), and 142 A (31 mW)- Spirulina
culture. Due to higher absorption rates in the Nannochloropsis culture,
this corresponds with the record high voltage levels. The analysis of
data indicates that Algae-based MFCs are proven hopeful for alternative
high-yield energy production.