Development of dual mini-fridge using thermoelectric cooling and heating technology for Tamaraw FX/ Wred A. Ballares, Angelo S. Cagampan, Gil Daniel B. Mateo, and Demy O. Nilo .--

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Ballares, Wred A [author]

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Material type: Text

TextPublication details: Manila: Technological University of the Philippines, 2025.Description: x, 93pages: 29cmContent type:

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BTH TL 146 B35 2025

Dissertation note: College of Industrial Technology .-- Bachelor of Engineering Technology major in Mechanical Engineering Technology option in Automotive Technology: Technological University of the Philippines, 2025 Summary: This study focuses on the development of a portable thermoelectric cooler and heater system, designed to provide an efficient solution for maintaining optimal temperatures in various environments. The system utilizes thermoelectric coolers (TECs) to regulate the temperature inside a 5-liter insulated container, allowing it to cool or heat items based on user-defined settings. Unlike conventional cooling and heating devices, the system operates on DC power from a vehicle's power supply, making it suitable for off-grid and portable applications without reliance on refrigerants or external electricity sources. A temperature sensor continuously monitors the internal temperature, while a fan ensures even air distribution to improve efficiency. The system was fabricated using locally available materials, keeping costs low while maintaining durability. Testing was conducted to evaluate the cooling and heating efficiency of the system under real-world conditions. The results showed that the chiller successfully lowered the internal temperature from 25°C to 13°C within a specific time frame, demonstrating its effectiveness in cooling beverages. The heating function utilized waste heat from the TEC module, efficiently maintaining temperatures suitable for warming food or drinks. Performance experiments based on workability, effectiveness, aesthetic safety, economy, durability, and cost- effectiveness. showed that the system met most of this study's objectives. Economics scored lowest 4.36 and aesthetics highest 4.87 in our overall evaluation, which yielded an average score of 4.65 out of 5. Keywords: cooling, heating, portable, sensor, temperature.

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Item type	Current library	Shelving location	Call number	Copy number	Status	Date due	Barcode
Bachelor's Thesis CIT	TUP Manila Library	Thesis Section-2nd floor	BTH TL 146 B35 2025 (Browse shelf(Opens below))	c.1.	Not for loan		BTH0005911

Bachelor's thesis

College of Industrial Technology .-- Bachelor of Engineering Technology major in Mechanical Engineering Technology option in Automotive Technology: Technological University of the Philippines, 2025

Includes bibliographic references and index.

This study focuses on the development of a portable thermoelectric cooler and heater system,
designed to provide an efficient solution for maintaining optimal temperatures in various
environments. The system utilizes thermoelectric coolers (TECs) to regulate the temperature
inside a 5-liter insulated container, allowing it to cool or heat items based on user-defined
settings. Unlike conventional cooling and heating devices, the system operates on DC power
from a vehicle's power supply, making it suitable for off-grid and portable applications without
reliance on refrigerants or external electricity sources. A temperature sensor continuously
monitors the internal temperature, while a fan ensures even air distribution to improve
efficiency. The system was fabricated using locally available materials, keeping costs low while
maintaining durability. Testing was conducted to evaluate the cooling and heating efficiency of
the system under real-world conditions. The results showed that the chiller successfully lowered
the internal temperature from 25°C to 13°C within a specific time frame, demonstrating its
effectiveness in cooling beverages. The heating function utilized waste heat from the TEC
module, efficiently maintaining temperatures suitable for warming food or drinks. Performance

experiments based on workability, effectiveness, aesthetic safety, economy, durability, and cost-
effectiveness. showed that the system met most of this study's objectives. Economics scored
lowest 4.36 and aesthetics highest 4.87 in our overall evaluation, which yielded an average score
of 4.65 out of 5.

Keywords: cooling, heating, portable, sensor, temperature.

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