THE IMPACT OF SOME PARAMETERS TO LONGAN DRYER PROCESS BY BIOGAS ENERGY

Abstract

This paper present application of biogas energy in peeled longan drying
process and identify some parameters to quality of dried longan. The results of the
experiments have determined the drying temperature, the effects of the distance of
the drying material tray distance to dring time and Glucose content. The colour of
dried longan is light golden bown when performed dring at 60 oC ÷ 90oC, so the
changing is not significant. The result of single factor research have identified
drying temperature t = 70oC, drying time T = 21h and remaining moisture after
drying ω = 10 ± 1%. The result of experimental research have determined the
optimal parameter to complet the design, manufacture and performance.