Singhania System Technologists Pvt. Ltd. has developed refractory-less (i.e. with minimum possible refractory) instant heat Hot Air Generator. The hot air generator uses incremental (step) introduction of dilution air, which ensures the uniform mixing of dilution air with products of combustion, without chilling the flame.
The annulus incremental introduction of air ensures that the HAG skin temperature does not go above 30 to 40oC above the ambient temperature. The HAG can be designed for up to 550oC outlet temperature as a standard, and can be customised for 750oC outlet temperature as per requirement.