Features of equipment, system and facilities

Demands of the times

These days the waist-deep cleansing pools filled with water with a high concentration of chlorine are no longer used at school swimming pools to avoid irritation to students with sensitive skin. Instead, students are now required to clean their bodies under a shower before entering the water.
Normal mains water is not sufficient to clean one’s body properly, so swimming pools have been heating the shower water using fossil fuel boilers and the like.

Outline of the system (patent pending)

•	Water is stored in the hollow collector panels where it is heated by the sun. It becomes hot water in a short time.
•	The heated water is mixed with tap water to obtain a moderate temperature for the shower.
•	his system uses normal mains water pressure, so there is no need for additional power.

Teaching aid

The system can be used as a “hands-on” teaching aid for environmental education.

“Many drops make a shower”

The energy saving effect of each panel is small at about 2.5 GJ/year-school, but if, say, 2,500 schools, or a mere 10% of primary schools throughout Japan, were to introduce this system, energy savings of about 6,250 GJ/year could be expected. This is the equivalent of roughly 200 kl of kerosene a year.