Question

Lumped Heat capacity analysis can be applied to a system when

• A. Convective resistance is very small and conductive resistance is very large
• B. Both convective and conductive resistances are very large
• C. Both convective and conductive resistances are very small
• D. Convective resistance is very large and conductive resistance is very small

Hint:

Lumped heat capacity analysis simplifies the system by assuming negligible temperature differences within the object so both resistances must be small

Answer 1

The Correct Option is C

Lumped heat capacity analysis is applicable when both resistances are small allowing the system to be approximated as a single thermal mass with negligible temperature gradients