In the continuous flow Louisiana State University (LSU) grain dryer, hot air and exhaust air are distributed across the grain column via:
Options:
(A) Inverted V-shaped metal channels (baffles) arranged in staggered horizontal rows
(B) A single perforated vertical central cylinder
(C) Rotating horizontal cylindrical drums with flights
(D) Ultrasonic vibrating fluidized trays
Answer Key:
A
Step-by-Step Solution & Explanation
The LSU dryer consists of a tall rectangular column equipped with horizontal rows of inverted V-shaped troughs (air ducts). Alternate rows act as hot air inlets and exhaust air outlets, providing uniform cross-flow air distribution through descending grain without screens.