Process for adjusting the amount of dilution water of a binding compound, and corresponding computing unit

A process for adjusting an amount of dilution water of a binding compound intended to be applied on fibers in a fiberizing station of a plant for manufacturing a mat of mineral fibers, the manufacturing plant comprising

• a fiberizing station, comprising means for forming the fibers and means for applying, on said fibers, a binding compound resulting from the mixture of a binder composition with dilution water,
• a receiving chamber comprising a perforated receiving device equipped with a fiber-receiving surface and, below said fiber-receiving surface, at least one suction duct, means for heat treatment of the mat,
• the process comprising:
• determining humidity of ambient air in the fiberizing station,
• determining humidity of intake air and intake air flow rate in the at least one suction duct,
• determining an optimal amount of dilution water as a function at least of the humidity of the ambient air in the fiberizing station, of the humidity of the intake air and of the intake air flow rate in the at least one suction duct, and of a desired amount of water in the mat at an outlet of the receiving chamber, and
• adjusting the amount of dilution water as a function of said optimal amount thus determined.