Convert Celsius Heat Unit per hour per square foot per degree Celsius to Thermochemical calorie per hour per square centimetre per degree Celsius
Convert Celsius Heat Unit per hour per square foot per degree Celsius (CHU/(h·ft²·°C)) to Thermochemical calorie per hour per square centimetre per degree Celsius (cal(th)/(h·cm²·°C)) instantly and accurately.
Conversion Formula
cal(th)/(h·cm²·°C) = CHU/(h·ft²·°C) × 0.4885695035
About Celsius Heat Unit per hour per square foot per degree Celsius
The Celsius heat unit per hour per square foot per degree Celsius (CHU/(h·ft²·°C)) equals ≈ 5.6783 W/(m²·K) - numerically identical to BTU(IT)/(h·ft²·°F). Used in UK and Canadian steam and process engineering; the temperature-interval ratio °F/°C = 5/9 is exactly compensated by the energy ratio CHU/BTU(IT) = 9/5, making both units numerically equal. 1 CHU/(h·ft²·°C) = 1 BTU(IT)/(h·ft²·°F) ≈ 5.6783 W/(m²·K).
About Thermochemical calorie per hour per square centimetre per degree Celsius
The thermochemical calorie per hour per square centimetre per degree Celsius (cal(th)/(h·cm²·°C)) equals 4.184/0.36 ≈ 11.622 W/(m²·K) (1 cal(th) = 4.184 J; 1 cm² = 10⁻⁴ m²). A CGS-derived unit found in older heat transfer textbooks and chemical engineering publications, especially in Eastern European and Japanese technical literature. 1 cal(th)/(h·cm²·°C) ≈ 11.622 W/(m²·K).
Quick Reference Table
| Celsius Heat Unit per hour per square foot per degree Celsius (CHU/(h·ft²·°C)) | Thermochemical calorie per hour per square centimetre per degree Celsius (cal(th)/(h·cm²·°C)) |
|---|---|
| 1 CHU/(h·ft²·°C) | 0.48857 cal(th)/(h·cm²·°C) |
| 2 CHU/(h·ft²·°C) | 0.977139 cal(th)/(h·cm²·°C) |
| 5 CHU/(h·ft²·°C) | 2.44285 cal(th)/(h·cm²·°C) |
| 10 CHU/(h·ft²·°C) | 4.8857 cal(th)/(h·cm²·°C) |
| 25 CHU/(h·ft²·°C) | 12.2142 cal(th)/(h·cm²·°C) |
| 50 CHU/(h·ft²·°C) | 24.4285 cal(th)/(h·cm²·°C) |
| 100 CHU/(h·ft²·°C) | 48.857 cal(th)/(h·cm²·°C) |