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516 projects · showing 61–90 Energy and Transport — clear category filter Clear all

ISEF · 2025

Compost Immersion

Energy: Sustainable Materials and Design

In this project our goal was to create a machine capable of heating water with compost. The machine uses a process called hot composting. This occurs when a compost pile is made with the cor…

ISEF · 2025

Development of a High-Efficiency Ultraviolet (UV) Energy-Harvesting Cell Using Zinc Oxide (ZnO) and Nanotechnology: Integration of TiO2 Nanocoating, SiO2 Nanoparticles, and Piezoelectric Devices With Polysilicon Cooling System for Enhanced Renewable Energy Conversion and Sustainability

Energy: Sustainable Materials and Design

This project addresses key global issues identified in the UN Sustainable Development Goals (SDGs), particularly the lack of renewable energy sources and the world’s overreliance on non-rene…

ISEF · 2025

Electrified Bubbles

Energy: Sustainable Materials and Design

With renewed interest in green fuel technology or E-fuels as an alternative to fossil fuels, interest has returned to hydrogen production and improving the electrolysis process. The key issu…

ISEF · 2025

Electrifying Lake Mud

Energy: Sustainable Materials and Design

With need for electrical power increasing around the globe and natural bacteria living in the ground, this work will present a novel solution to meet the energy demands by using the alternat…

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