Newsletter  2025.2  Index

Theme : "The Conference of Fluid Engineering Division (Part 1)" Preface Hyun Jin PARK, Shoichi MATSUDA, Chungpyo HONG Present to Future of Rocket Propulsion -JAXA Kakuda Space Center Initiatives- Takeo TOMITA (JAXA) The 21st Dream contest of the flow　Moment of healing Shoma HIJIKATA (Meisei University) Thinking about the SDGs from another point of view Yui YAMADA, Taichi WATANABE and Haruto KAWATA (Nihon University) Report of The Dream of Flow Contest Masashi KAMBE and Taro MATSUSHIMA (Kanazawa University)

 

Report of The Dream of Flow Contest

Masashi KAMBE Kanazawa University	Taro MATSUSHIMA Kanazawa University

Abstract

At the 21st Flow Dream Contest, Kanazawa University’s Fluid Engineering Laboratory won the“ Ichiju Prize ”for its project“ Solar Water ”:“ Energizing Everyone with the Power of Water ”. The project focuses on a solar-powered water purification system that uses solar energy to provide clean water in an environmentally friendly and sustainable manner. By harnessing the power of sunlight, the device effectively purifies water and is a practical solution for communities with limited access to clean water. This article provides an overview of the project, its concept, and the process leading to its realization. The purification targets water sources originating from the natural environment, such as rainwater and river water. Using electricity generated by solar panels, water stored in tanks is purified through chemical treatment. The purified water flows through pipes, and it cools the surface temperature of the solar panels. Meanwhile, the purified water undergoes further physical treatment, making it suitable for multiple purposes, such as for drinking. In the conceptual stage, the water used to cool the solar panels was to be returned to the purification system for reuse. However, energy balance was a key factor in the future.

Key words

solar panels，water purification system，cooling

Figures

(a) Schematic diagram	(b) Photography
Fig. 1: Solar-powered water system