Convert International table BTU per second per square foot per degree Fahrenheit to Kilowatt per square metre kelvin
Convert International table BTU per second per square foot per degree Fahrenheit (BTU(IT)/(s·ft²·°F)) to Kilowatt per square metre kelvin (kW/(m²·K)) instantly and accurately.
Conversion Formula
kW/(m²·K) = BTU(IT)/(s·ft²·°F) × 20.44174803
About International table BTU per second per square foot per degree Fahrenheit
The international table BTU per second per square foot per degree Fahrenheit (BTU(IT)/(s·ft²·°F)) equals ≈ 20442 W/(m²·K) (= 3600 × BTU(IT)/(h·ft²·°F)). Encountered in atmospheric re-entry aerodynamic heating analysis, solid rocket motor nozzle throat design, and nuclear reactor thermal-hydraulics with peak surface heat transfer rates. 1 BTU(IT)/(s·ft²·°F) ≈ 20442 W/(m²·K).
About Kilowatt per square metre kelvin
The kilowatt per square metre kelvin (kW/(m²·K)) equals exactly 1000 W/(m²·K). Characteristic of high-performance industrial applications: nucleate pool boiling of water reaches 5-50 kW/(m²·K), compact plate heat exchangers with liquid-liquid flow achieve 3-8 kW/(m²·K), and jet impingement cooling on metal surfaces can exceed 10 kW/(m²·K). 1 kW/(m²·K) = 10³ W/(m²·K).
Quick Reference Table
| International table BTU per second per square foot per degree Fahrenheit (BTU(IT)/(s·ft²·°F)) | Kilowatt per square metre kelvin (kW/(m²·K)) |
|---|---|
| 1 BTU(IT)/(s·ft²·°F) | 20.4417 kW/(m²·K) |
| 2 BTU(IT)/(s·ft²·°F) | 40.8835 kW/(m²·K) |
| 5 BTU(IT)/(s·ft²·°F) | 102.209 kW/(m²·K) |
| 10 BTU(IT)/(s·ft²·°F) | 204.417 kW/(m²·K) |
| 25 BTU(IT)/(s·ft²·°F) | 511.044 kW/(m²·K) |
| 50 BTU(IT)/(s·ft²·°F) | 1022.09 kW/(m²·K) |
| 100 BTU(IT)/(s·ft²·°F) | 2044.17 kW/(m²·K) |