Home
Back
Stanton Number Formula:
| From: | To: |
The Stanton Number is a dimensionless number that measures the ratio of heat transferred into a fluid to the thermal capacity of the fluid. It is used in heat transfer analysis to characterize convection heat transfer.
The calculator uses the Stanton Number formula:
Where:
Explanation: The Stanton Number represents the ratio of convective heat transfer to the fluid's capacity to transport heat away from the surface.
Details: The Stanton Number is crucial for analyzing heat transfer efficiency in various engineering applications, including heat exchangers, cooling systems, and thermal management of electronic devices.
Tips: Enter wall heat transfer rate and heat transfer by convection in W/m²K. Both values must be positive numbers greater than zero.
Q1: What does a high Stanton Number indicate?
A: A high Stanton Number indicates efficient heat transfer from the surface to the fluid, suggesting good convective heat transfer characteristics.
Q2: How is Stanton Number related to other dimensionless numbers?
A: Stanton Number is related to Nusselt Number (Nu), Reynolds Number (Re), and Prandtl Number (Pr) through the relationship: St = Nu/(Re·Pr).
Q3: What are typical Stanton Number values?
A: Stanton Number values typically range from 0.001 to 0.01 for forced convection in gases and 0.005 to 0.05 for forced convection in liquids.
Q4: When is Stanton Number particularly useful?
A: Stanton Number is particularly useful in heat exchanger design and analysis, where it helps characterize the efficiency of heat transfer between surfaces and fluids.
Q5: Can Stanton Number be used for both laminar and turbulent flow?
A: Yes, Stanton Number can be used for both laminar and turbulent flow conditions, though the correlation relationships differ between flow regimes.