Abstract
ABSTRACT Batches of wddv rewened to 18% or 24% moisture content were dried in a sealed rotating drum containing ; preheated sand. For each initial moisture content, all combinations of the following variables were replicated three times: sand patilcle size (0.3 and 0.6mm). residence time (60, 120 and 180 s), sand-to-grain mass ration ( 3:1, 6:1 and 9:1) and initial sand temperture ( 100, 150 and 200°). The dried paddy was shelled and milled and the percentage of whole grain kernels was determined. In general. the paddy starting at 18% mc led to lower final moisture contents than that starting at 24%. For equivalent final moisture contents, milling yields of whole rice were equivalent. Best yields were generally associated with lower energy input (ie. low to intermediate initial sand temperature and sand-to-grain mass ratios below 4.7:1) Residence time was not critical in determining milling yieid. This study indicates that particulate medium drying of paddy is an interesting alternative to traditional drying since it greatly accelerates drying timee without reducing milling yields. Solar preheating of the sand could permit substantial energy savings.
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Claims 7
Claim · model-written summary
Paddy starting at 18% moisture reached lower final moisture than paddy starting at 24%.
Verbatim
t0“Paddy”
e0“the paddy starting at 18% mc led to lower final moisture contents than that starting at 24%”
Claim · model-written summary
At equivalent final moisture content, whole rice milling yields were equivalent.
- Taxon
- rice
Oryza sativae0 - Outcome
- milling yields of whole ricee0
- Direction
- equivalente0
- Qualifier
- equivalent final moisture contentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“For equivalent final moisture contents, milling yields of whole rice were equivalent”
Claim · model-written summary
Best milling yields were generally associated with lower energy input.
Verbatim
t0“Paddy”
e0“Best yields were generally associated with lower energy input (ie. low to intermediate initial sand temperature and sand-to-grain mass ratios below 4.7:1)”
Claim · model-written summary
Residence time was not critical for milling yield.
Not reportedDirection
Verbatim
t0“Paddy”
e0“Residence time was not critical in determining milling yieid”
Claim · model-written summary
Particulate medium drying greatly accelerated drying time without reducing milling yields compared with traditional drying.
Verbatim
t0“Paddy”
e0“particulate medium drying of paddy is an interesting alternative to traditional drying since it greatly accelerates drying timee without reducing milling yields”
Claim · model-written summary
Particulate medium drying did not reduce milling yields compared with traditional drying.
Verbatim
e0“particulate medium drying of paddy is an interesting alternative to traditional drying since it greatly accelerates drying timee without reducing milling yields”
Claim · model-written summary
Solar preheating of sand could permit substantial energy savings.
Verbatim
t0“Paddy”
e0“Solar preheating of the sand could permit substantial energy savings”
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