Optimization and stabilization of algal biophotovoltaic cell array using chlorella vulgaris for small-scale micro power generation/ Christian Dave G. Dawit, Jona Mae E. Egana, Anna Althea P. Ilustre, Mariel Ann C. Narca, Cristina Anne G. Oaferina, and Shaira L. Santos.--

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Dawit, Christian Dave G [author]

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TextPublication details: Manila: Technological University of the Philippines, 2025.Description: xi, 175pages: 29cmContent type:

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BTH TK 146 D39 2025

Dissertation note: College of Engineering.-- Bachelor of science in electrical engineering: Technological University of the Philippines, 2025. Summary: This study explores the design, optimization, and stabilization of an algal biophotovoltaic (BPV) cell array utilizing Chlorella vulgaris for small-scale renewable energy generation. BPV cells harness electrons produced during photosynthesis and convert them into electrical energy through redox reactions. The research begins with the development of a photobioreactor designed to cultivate Chlorella vulgaris under controlled conditions, optimizing growth through variations in inoculum density, pH, light intensity, temperature, and nutrient concentration. The BPV system is further enhanced by identifying ideal algae concentrations, container configurations, and electrode materials to improve electron transfer efficiency. Various light arrangements and cell placements are tested to maximize energy capture. Although the system is designed with a target output of twenty (20) watts, the development is limited to a lower-power prototype, constrained by the available timeframe and resources, to demonstrate the viability of the proposed design. Performance is evaluated through measurements of open-circuit voltage, short-circuit current, and total power generated. To stabilize energy delivery, a solar charge controller is integrated for voltage regulation and storage support. Results show that optimizing growth and system parameters enhances power output and consistency. This study offers a viable framework for future scalable BPV systems and highlights the potential of algae-based energy technologies as a sustainable alternative for off-grid and environmentally conscious applications.

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Bachelor's Thesis COE	TUP Manila Library	Thesis Section-2nd floor	BTH TK 146 D39 2025 (Browse shelf(Opens below))	c.1.	Not for loan		BTH0006663

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Bachelor's thesis

College of Engineering.-- Bachelor of science in electrical engineering: Technological University of the Philippines, 2025.

Includes bibliographic references and index.

This study explores the design, optimization, and stabilization of an algal biophotovoltaic
(BPV) cell array utilizing Chlorella vulgaris for small-scale renewable energy generation.
BPV cells harness electrons produced during photosynthesis and convert them into electrical
energy through redox reactions. The research begins with the development of a
photobioreactor designed to cultivate Chlorella vulgaris under controlled conditions,
optimizing growth through variations in inoculum density, pH, light intensity, temperature,
and nutrient concentration. The BPV system is further enhanced by identifying ideal algae
concentrations, container configurations, and electrode materials to improve electron
transfer efficiency. Various light arrangements and cell placements are tested to maximize
energy capture. Although the system is designed with a target output of twenty (20) watts,
the development is limited to a lower-power prototype, constrained by the available
timeframe and resources, to demonstrate the viability of the proposed design. Performance
is evaluated through measurements of open-circuit voltage, short-circuit current, and total
power generated. To stabilize energy delivery, a solar charge controller is integrated for
voltage regulation and storage support. Results show that optimizing growth and system
parameters enhances power output and consistency. This study offers a viable framework for
future scalable BPV systems and highlights the potential of algae-based energy technologies
as a sustainable alternative for off-grid and environmentally conscious applications.

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