UJI KINERJA ALAT PENGERING EFEK RUMAH KACA (ERK) HYBRID DENGAN TUNGKU BIOMASSA SEBAGAI SISTEM PEMANAS TAMBAHAN UNTUK PENGERINGAN BIJI PALA (Myristica sp.)
ABSTRACT: Conventional drying
depend on the weather. It was caused agricultural product damaged, and moldy
attack. So we need hybrid dryer with a source of radiation and solar biomass to
continuous drying and can be controlled.The aims of this research is test performance of ERK hybrid dryer to drying the nutmeg seed
during the drying process. Experiments were conducted to determine the
distribution of temperature in the dryer
in condition with no material and material conditions. Input of energy
derived from biomass combustion in the furnace (evening) and combination
of biomass and
radiation (during the day). Measurements of temperature and RH using a thermocouple CC and alcohol
thermometer. Temperature and RH to be measured include temperature and RH in dryer
with several measurement points representing the up, middle , bottom and inlet temperature, outlet temperature and
ambient temperature measurements at intervals of 30 minutes. The results
showed average temperature ranges
between 42 ° C - 51 ° C and RH ranged between 50.96 % -55.65 % . Time of drying is used to dry nutmeg from the initial
moisture content from 80.72 % wb to 9.67 % wb is 52 hours with an average
drying rate is 7.8 %db / hour . The total energy used to heat and vaporize
materials,water that is 290 499.9 kJ.
Efficiency of drying system 8.63% and energy of drying required to water
evaporated is 28520.62 kJ / kg. The result
quality of product obtained color of nutmeg generally more uniform.
Penulis: Guyup Mahardhian Dwi
Putra, Edi Sutoyo, Sri Hartini
Kode Jurnal: jppertaniandd140109
