Abstract:

In order to achieve energy conservation and emission reduction, a combination of energy from solar and coal has been built up based on a bulk curing barn by installing a solar heat system on the top of a bulk curing barn roof which are comprised of a heat room with valve controlled by a fan, lighting and heating transformation sheet and automatic temperature monitor. This study was focused on how much effect of the solar heating system could be as a supplemental energy to curing process, It has been turned out that not only a significant energy reduction has been achieved, but this modification bulk curing barn were easily constructed and economical, the solar energy could supply all heating from the early stage of tobacco curing process. The modified solar curing barn could save 20%-24% coal consumption per kg drying leaf as the one from a bulk curing barn at achieving the equivalent leaf quality. It has shown an encouraging prospective of benefit for economy and society especially on emission reduction and worthwhile for those area with abundant solar resource to extend this technology.