Convert International table BTU per hour per square inch to International table BTU per second per square foot
Convert International table BTU per hour per square inch (BTU(IT)/(h·in²)) to International table BTU per second per square foot (BTU(IT)/(s·ft²)) instantly and accurately.
Conversion Formula
BTU(IT)/(s·ft²) = BTU(IT)/(h·in²) × 0.04
About International table BTU per hour per square inch
The international table BTU per hour per square inch (BTU(IT)/(h·in²)) equals 1055.05585262/(3600×6.4516×10⁻⁴) ≈ 454.26 W/m². Used for high heat flux applications such as electronic component cooling, jet engine combustor walls, and nuclear fuel assembly design in US customary units. 1 BTU(IT)/(h·in²) ≈ 454.26 W/m².
About International table BTU per second per square foot
The international table BTU per second per square foot (BTU(IT)/(s·ft²)) equals 1055.05585262/0.09290304 ≈ 11357 W/m² (= 3600 × BTU(IT)/(h·ft²)). Used for extreme heat flux: atmospheric re-entry aerodynamic heating, solid rocket nozzle throat, and nuclear reactor thermal hydraulics design. 1 BTU(IT)/(s·ft²) ≈ 11357 W/m².
Quick Reference Table
| International table BTU per hour per square inch (BTU(IT)/(h·in²)) | International table BTU per second per square foot (BTU(IT)/(s·ft²)) |
|---|---|
| 1 BTU(IT)/(h·in²) | 0.04 BTU(IT)/(s·ft²) |
| 2 BTU(IT)/(h·in²) | 0.08 BTU(IT)/(s·ft²) |
| 5 BTU(IT)/(h·in²) | 0.2 BTU(IT)/(s·ft²) |
| 10 BTU(IT)/(h·in²) | 0.4 BTU(IT)/(s·ft²) |
| 25 BTU(IT)/(h·in²) | 1 BTU(IT)/(s·ft²) |
| 50 BTU(IT)/(h·in²) | 2 BTU(IT)/(s·ft²) |
| 100 BTU(IT)/(h·in²) | 4 BTU(IT)/(s·ft²) |