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Kurita Water Industries noted that water from the steam, adhering to the inside of the dryer, caused a drop in heat conduction efficiency. At many paper mills, the Kurita team has proposed adding a water treatment chemical that forms a water-repellent film to the steam.
Water resources in Iran. The average annual precipitation is estimated at 250mm, varying from 50mm in parts of the central water basin, to more than 1,600mm in some coastal areas near the Caspian Sea. [1] The global average annual precipitation is more than 830mm, classifying Iran as arid and semi-arid. In the last 50 years, Iran has faced ten periods of severe drought.
