PENERAPAN ENERGI TERBARUKAN UNTUK PROSES THERMAL BAGIAN I. PENGERINGAN HASIL PERTANIAN
ABSTRACT: Study on thermal
processes using renewable energy sources for drying and cooling purposes hasc
been selected due to their importance in extending shelf life of agro and
marine products which arc susceptible to high temperature and humidly under the
tropical climatic conditions. The unavailability of these facilities had
resulted in significant amount post harvest which sometime may reached up to
30% of harvest. This research was aimed to determine the proper design and
construction of renewable energy conversion, namclyt, solar, wind and biomass
to generate thermal energy for drying and cooling of agricultural and marine
produccts. Both processes could also be used as the main component of a Small
Processing Unit (SPU), an early form of SME and cooperative at village level.
This paper will discuss Part I of the study which will be focused on the
application of renewable energy sources for the drying of agricultural
products. The following conclusions had been achieved. a). Study on
simultaneous momentum, energy and mass transfer in thin layer drying process of
rough rice have provided information on air temperature, velocity and RH
distribution above the grain. b). A novel ventury type CIIE solar dryer with
solar PV power supply and PCM energy storage, has been successfully designed
and constructed. Test results have shown that the dryer could he used to dry
75-95kg of fish within 36 to 40 hrs. wirh apparent PCM energy storage of 6.9M.J
(6 hrs. drying time). c). Mathematical modelling and simulation of a biomass
stove heated recirculation dryer indicated that drying of rough rice could be
completed within 3-6hrs (1.8-3.7T.hrs-1 recirculation rate with one hour tempering
time) if 2 HP blower is used.
Keywords: energy storage,
momentum and mass transfer, recirculation dryer, renewable energy conversion,
simultaneous energy
Penulis: Kamaruddin Abdullah,
Armansyah H Tambunan, Harsono Soepardjo
Kode Jurnal: jppertaniandd080111
