| Author | Heng, Fook Hai |
| Call Number | AIT Thesis no. AE-87-22 |
| Subject(s) | Spouted bed processes
|
| Note | A thesis submitted in partial fulfillment of the requirements for the degree of Master of Engineering, School of Environment, Resources and Development |
| Publisher | Asian Institute of Technology |
| Abstract | In this study, the typical pressure drop vs. airflow rate
relations hips for various grains in a spouted bed were
investigated. Tests carried out with dry corn, rough rice and
soybeans displayed hysteresis typical of a l l spouted beds with
characteristic differences in the shape depending upon grain
type. Effects of bulk density, bed depth and column geometry were
evaluated for each grain . Experimental correlations between the
minimum spouting velocity, peak pressure drop and spouting
pressure drop were developed a nd compared with the equations
reported in the literature.
Spouted-bed h eating of paddy having initial moisture content
of 26 % wb, resulted in rapid moisture removal rates. The head
rice yields of paddy were adversely affected due to prolonged
exposure syndicating the desirability of multi pass continuous
drying with tempering .
Low moisture paddy could be heated in both conduction and
spouted bed units upto a final grain temperature of about 60°C
without marked effect on the head yields of paddy. However,
conduction heating of paddy appeared to b e preferable for better
mil ling quality than spouted bed heating.
|
| Year | 1987 |
| Type | Thesis |
| School | School of Environment, Resources, and Development (SERD) |
| Department | Other Field of Studies (No Department) |
| Academic Program/FoS | Agricultural and Food Engineering (AE) |
| Chairperson(s) | Jindal, Vinod Kumar; |
| Examination Committee(s) | Illangantileke, Sarath G. ;Noornhorm Athapol; |
| Scholarship Donor(s) | Canadian International Development Agency ; |
| Degree | Thesis (M.Eng.) - Asian Institute of Technology, 1987 |