• Whispering Corridor (Sound talk)
  
  
• Heat Pipe
  
  
• Long Life Energetic Desalination Plant
  
  
• Scarcity of fresh and clean water
  
  
• Marine fresh water generator in the Edo period `Ranbiki
  
  
• Water is life!
  
  

Whispering Corridor (Sound talk)

In a hallway in Londons St. Paul Cathedral dome, a whispering voice can be heard by people on the other end. This phenomena is due to the fact the ceiling is round and made of a hard, smooth material that reflects sound continuously. Also in Sicily during ancient Greek and Roman times this was found in prison caves, it was called `Dionysius Ear`. The guards could over hear the prisoners secret conversations. The same effect can be found in a temple in Beijing.

Heat Pipe

The heat pipe exchanges heat between cooling water and the substance to be cooled down through a coolant. This solves the problem of the usual heat exchange temperature difference at the entrance and the exit of the cooling water that prevents the cooling down of the substance evenly. Rotary Thermosiphon Chill Roll is slightly more complicated and little more expensive but the rolls surface temperature remains uniform and no condensation occurs on the surface. This means that the ability of the substance to cool down (laminate film etc.) increases and prevents moisture which improves quality and productivity. This makes it a good investment. This Rotary Thermosiphon Chill Roll won the Japan Society for the Promotion of Machine Industry prize in 1992. The Heat Pipe Thermal Recovery Unit does not use a rotation component, so polluted exhaust never mixes with fresh air.

Long Life Energetic Desalination Plant

In September 1966, the first desalination plant was installed at The Matsushima coal mining plant in Nagasaki. Of course it was Sasakuras! It had the ability to produce 2,650 tons of fresh water in one day. It produced water for industrial use as well as daily water for the people of the island. For 32 years it has continued to work without loss in production and has produced over 30,000,000 tons of fresh water!

Scarcity of fresh and clean water

More than one billion people in the world have no access to clean water. The figure is increasing and will continue to do so, if no action will be taken. Reasons are increase in the demand through increase in the population and diminishing of ground water resources (Reported at the world summit in Johannesburg in 2002).

Marine fresh water generator in the Edo period `Ranbiki

When did marine fresh water technology first begin? There is no actual record but in 350B.C. ancient Greek philosopher Aristotle experimented with changing salt water to fresh water. In Japan at the beginning of the Edo period, sailors invented a fresh water generator called `Ranbiki`. `Ranbiki` in Portugese is `Alanbic` which means `distillation`. This system used salt water in a pot placed on a fire with a bamboo pipe attached to the lid of the pot. On top was a barrel with pan filled with more salt water. Steam from the boiling pot of salt water would go through the bamboo pipe into the barrel and the pan with salt water would cool down the steam and turn it into fresh water. When the pan with salt water on the barrel got to hot, It was put on a fire to boil and process would start over again. As you can see, our ancestors had already developed a marine fresh water generator using heat!

Water is life!

Water is necessary for life. We need water for every need of our life, fresh water for drinking, for every activity of our life since wake-up to sleep. Every living organism needs water for life. Beside these personal application, the main consumer of water is Agriculture and Industrial sectors.