{[ promptMessage ]}

Bookmark it

{[ promptMessage ]}

# example 6-1 - Example 6-1 Stainless steel parts(AISI 304...

This preview shows pages 1–2. Sign up to view the full content.

Example 6-1 Stainless steel parts (AISI 304) are heated in a furnace to a temperature of 850°C. Each part is brick-shaped with a height of 1 cm, a width of 1.5 cm and a length of 2 cm. The parts leave on a conveyor belt traveling at 3 cm/s and are cooled by air at 20°C. The convective heat transfer coefficient between the parts and the air is 138 W/m 2 ·°C. How far must a part travel from the furnace exit before it reaches 100°C? Assume the side of the part resting on the belt is perfectly insulated and the other five sides are exposed to the convective cooling. Solution: Check to see if the lumped system approximation is valid. Calculate characteristic length as ( )( )( ) () () () 2 1.5cm 1.0cm 2.0cm 1.5 2.0 2 1.5 1.0 2 2.0 1.0 cm char V L A == ++

This preview has intentionally blurred sections. Sign up to view the full version.

View Full Document
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

### Page1 / 2

example 6-1 - Example 6-1 Stainless steel parts(AISI 304...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document
Ask a homework question - tutors are online