| 主权项 |
1. A process for heat treating firewood in baskets, the process comprising:
obtaining access to a kiln, the kiln having:
a burner side wall with a return duct to allow air to leave the kiln to enter a mixing chamber to be heated and returned by a supply duct that provides heated air to above a fan deck and through a set of downcomers;an opposite side wall that is opposite the burner side wall;a burner side placement area and an opposite side placement area, each placement area for receiving a set of baskets containing firewood, the two placement areas separated by the set of downcomers that provide heated air between the two placement areas;a first end wall between the burner side wall and the opposite side wall;a second end wall between the burner side wall and the opposite side wall and opposite the first end wall;a set of at least one door so that baskets with firewood may be moved into the two placement areas through use of at least one of the first end wall and the second end wall;a set of fans located in a fan wall above the fan deck to promote air circulation of a loaded kiln from a discharge side of the set of fans, downward, through a first set of baskets on the discharge side of the set of fans, through gaps between the set of downcomers while receiving heated air from the set of downcomers, through a second set of baskets on an inlet side of the set of fans and upward to the inlet side of the set of fans, the set of fans adapted to periodically change a direction of fan rotation to reverse the inlet side of the set of fans with the discharge side of the set of fans; anda set of roof vents to remove water vapor from the kiln;opening the set of at least one door;loading the two placement areas with baskets of firewood;closing the set of at least one door;applying an application of a charge to heat treat the firewood, the application of the charge comprising:
heating air for the kiln in the mixing chamber and returning the heated air to the kiln through the supply duct;circulating the heated air within the kiln till a dry bulb temperature reaches an initial target dry bulb temperature above 230 degrees Fahrenheit.after reaching the initial target dry bulb temperature increasing a wet bulb temperature depression to a target while working to maintain the dry bulb temperature within a selected tolerance with respect to the initial target dry bulb temperature;after a period of operation with a dry bulb temperature within tolerance of the initial target dry bulb temperature and the wet bulb temperature depression at the target, stopping addition of heat to the kiln;opening the set of at least one door; andremoving the baskets of firewood from the two placement areas. |
