Cross-flow fluidized bed paddy dryer: Prototype and commercialization

Journal Article · Sun Dec 31 04:00:00 EST 1995 · Drying Technology

DOI:https://doi.org/10.1080/07373939508917075· OSTI ID:378055

Soponronnarit, S; Yapha, M; Prachayawarakorn, S ^[1]

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1. King Mongkut`s Inst. of Tech. Thonburi, Bangkok (Thailand)

The objective of this paper is to design and test a prototype, 0.82 ton/h capacity, fluidized bed paddy dryer for high moisture paddy. Exhausted air is partially recycled. Experimental results showed that the unit operated efficiently and yielded high product quality in terms of head yield and whiteness. In reducing the moisture content from 45% to 24% dry-basis using air temperature of 100--120 C, fraction of air recycled of 0.66, specific air flow rate of 0.05 kg/s-kg dry matter, superficial air velocity of 3.2 m/s, bed depth of 0.1 m, total primary energy consumption was 2.32 MJ/kg water evaporated of which 0.35 was primary energy from electricity (electrical energy multiplied by 2.6) and 1.79 was primary energy in terms of heat.

• Sponsoring Organization: USDOE
• OSTI ID: 378055
• Journal Information: Drying Technology, Journal Name: Drying Technology Journal Issue: 8-9 Vol. 13; ISSN DRTEDQ; ISSN 0737-3937
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
AIR FLOW
CEREALS
DESIGN
DRYERS
DRYING
ELECTRIC POWER
ENERGY CONSUMPTION
ENERGY EFFICIENCY
FLUIDIZED BEDS
PERFORMANCE TESTING
PROCESS HEAT
RECYCLING
SCALE MODELS