Convert International table BTU per second per square foot to Thermochemical kilocalorie per hour per square centimetre
Convert International table BTU per second per square foot (BTU(IT)/(s·ft²)) to Thermochemical kilocalorie per hour per square centimetre (kcal(th)/(h·cm²)) instantly and accurately.
Conversion Formula
kcal(th)/(h·cm²) = BTU(IT)/(s·ft²) × 0.9771390071
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.
About Thermochemical kilocalorie per hour per square centimetre
The thermochemical kilocalorie per hour per square centimetre (kcal(th)/(h·cm²)) equals 4184/(3600×10⁻⁴) ≈ 11622 W/m² (= 10⁴ × kcal(th)/(h·m²)). A high-flux variant of the metric heat flux unit found in older combustion engineering and furnace design references. 1 kcal(th)/(h·cm²) ≈ 11622 W/m².
Quick Reference Table
| International table BTU per second per square foot (BTU(IT)/(s·ft²)) | Thermochemical kilocalorie per hour per square centimetre (kcal(th)/(h·cm²)) |
|---|---|
| 1 BTU(IT)/(s·ft²) | 0.977139 kcal(th)/(h·cm²) |
| 2 BTU(IT)/(s·ft²) | 1.95428 kcal(th)/(h·cm²) |
| 5 BTU(IT)/(s·ft²) | 4.8857 kcal(th)/(h·cm²) |
| 10 BTU(IT)/(s·ft²) | 9.77139 kcal(th)/(h·cm²) |
| 25 BTU(IT)/(s·ft²) | 24.4285 kcal(th)/(h·cm²) |
| 50 BTU(IT)/(s·ft²) | 48.857 kcal(th)/(h·cm²) |
| 100 BTU(IT)/(s·ft²) | 97.7139 kcal(th)/(h·cm²) |