Question

LSU dryer was developed by

• A. Ludhiana State University, India
• B. Lousiana State University, USA
• C. IIT, Kharaghpur
• D. IARI, New Delhi

Hint:

LSU Dryer = Louisiana State University, USA. Continuous mixed-flow baffled dryer widely adopted in modern rice milling complexes.

Answer 1

The Correct Option is B

Step 1: Understanding the Concept:
Continuous-flow commercial column grain dryers are categorized by airflow design (cross-flow, concurrent-flow, counter-flow, and mixed-flow baffled dryers).

Step 2: Detailed Explanation:
The LSU (Louisiana State University) Dryer is a famous continuous-flow, mixed-flow baffled grain dryer originally developed at Louisiana State University, Baton Rouge, USA in the 1950s for drying rough rice (paddy).
It features inverted V-shaped air ducts (inverted troughs) staggered throughout a tall vertical holding column to provide uniform air distribution and eliminate localized hot spots during grain drying.

Step 3: Final Answer:
Hence, the LSU dryer was developed by Louisiana State University, USA, corresponding to option (B).