TYPE OF COMBINED FUEL CONSUMPTION IN GRAIN DRIER Russian patent published in 2017 - IPC C10B57/00 F23C1/02 F23C1/04 

FIELD: heating system.

SUBSTANCE: type of combined fuel consumption in grain drier resides in the fact that the low-reactive solid propellant and the high-reactive liquid propellant get into the furnace chamber, which is in coincidence with the heat-transfer apparatus. The sunflower husk is used as the low-reactive propellant. The high-reactive propellant is delivered at regular intervals with the delivery time:

where G is a mass of the heat-exchange part of the furnace chamber, kg; c is a chamber material heating capacity, kJ/kg °C; α is a heat-transfer coefficient comes up to 42 W/m² °C; F is a chamber heat-transfer surface, m²; T₁ is a furnace gas temperature generated by high-reactive propellant consumption at the inlet in the heat-transfer apparatus, °C; t₁, t₂ are the maximum and the minimum heating temperatures of the heat-transfer apparatus, °C; and with the pause time:

where t₀ is a furnace gas temperature generated by low-reactive propellant consumption at the inlet in the heat-transfer apparatus, °C.

EFFECT: heat transfer improvement.

1 dwg, 2 ex