April 7, 2021

Mineral Workshop / Polycarbonate Roofing for the Salt Production

Yoshiharu Tsukamoto Lab. (Tokyo Institute of Technology)

Salt workshop in Murakami City, Niigata Prefecture. Seawater is suctioned via pump from the nearby Japan Sea to the flat tank outside the building. The seawater is concentrated by a factor of 8 and then boiled in this building to precipitate salt. When the steam caused by warming the seawater touches the roof, it is cooled and returns to water. A tray is placed under the roof to prevent this water from mixing with the salt. The roof is a polycarbonate corrugated sheet, which can be used as a light source during work.

Mineral Workshop
(Salt / Murakami City, Niigata Prefecture)

This article is an excerpt from “Window Workology,” a joint research project concerning windows and the behaviors around them done in collaboration with Tokyo Institute of Technologyʼs Yoshiharu Tsukamoto Laboratory.