Convert International table BTU per hour per square inch to Celsius Heat Unit per hour per square foot
Convert International table BTU per hour per square inch (BTU(IT)/(h·in²)) to Celsius Heat Unit per hour per square foot (CHU/(h·ft²)) instantly and accurately.
Conversion Formula
CHU/(h·ft²) = BTU(IT)/(h·in²) × 80
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 Celsius Heat Unit per hour per square foot
The Celsius heat unit per hour per square foot (CHU/(h·ft²)) equals (9/5)×1055.05585262/(3600×0.09290304) ≈ 5.6783 W/m². The CHU (= 9/5 BTU(IT)) uses a 1 °C temperature interval instead of 1 °F; historically used in UK and Canadian heating engineering. 1 CHU/(h·ft²) ≈ 5.6783 W/m² = (9/5) × BTU(IT)/(h·ft²).
Quick Reference Table
| International table BTU per hour per square inch (BTU(IT)/(h·in²)) | Celsius Heat Unit per hour per square foot (CHU/(h·ft²)) |
|---|---|
| 1 BTU(IT)/(h·in²) | 80 CHU/(h·ft²) |
| 2 BTU(IT)/(h·in²) | 160 CHU/(h·ft²) |
| 5 BTU(IT)/(h·in²) | 400 CHU/(h·ft²) |
| 10 BTU(IT)/(h·in²) | 800 CHU/(h·ft²) |
| 25 BTU(IT)/(h·in²) | 2000 CHU/(h·ft²) |
| 50 BTU(IT)/(h·in²) | 4000 CHU/(h·ft²) |
| 100 BTU(IT)/(h·in²) | 8000 CHU/(h·ft²) |