Development of Bulk Curing-barn with Pooling Surplus Heat

In order to make reasonable use of the surplus heat in the course of tobacco curing, a new type bulk curing-barn was developed in this study. Four curing barn was built side by side and the chunnel pooling surplus heat was built crossly on the side near the furnace. In the middle location above the chunnel in each barn the heat gas inlet (or outlet) was set up. The results showed that the new type of barn could save 20% of heat source, reduce the cuing cost 0.57 yuan per kilogram tobacco leaves, enhance the proportion of orange leaves and the average price of the cured leaves increased by 0.66 yuan/kg.