Chus/hour/square foot to Calories (it)/minute/square centimeter Converter (CHU/(h·ft²) to cal/(min·cm²))
CHU/(h·ft²) × 0.0081374141 = cal/(min·cm²)
Calculation: 1 CHU/(h·ft²) × 0.0081374141 = 0.0081374141 cal/(min·cm²)
Common CHU/hour/square foot to Calorie (IT)/minute/square centimeter Calculations
Quick-lookup reference table showing calculated equivalents for standard increments between CHU/hour/square foot (CHU/(h·ft²)) and Calorie (IT)/minute/square centimeter (cal/(min·cm²)).
| Conversion & Equivalent Value | Scientific Notation |
|---|---|
| 0.001 CHU/(h·ft²) 8.137414 × 10⁻⁶ cal/(min·cm²) | 8.137 × 10⁻⁶ |
| 0.01 CHU/(h·ft²) 8.137414 × 10⁻⁵ cal/(min·cm²) | 8.137 × 10⁻⁵ |
| 0.1 CHU/(h·ft²) 0.000813741 cal/(min·cm²) | 8.137 × 10⁻⁴ |
| 0.5 CHU/(h·ft²) 0.00406871 cal/(min·cm²) | 4.069 × 10⁻³ |
| 1 CHU/(h·ft²) 0.00813741 cal/(min·cm²) | 8.137 × 10⁻³ |
| 2 CHU/(h·ft²) 0.0162748 cal/(min·cm²) | 1.627 × 10⁻² |
| 5 CHU/(h·ft²) 0.0406871 cal/(min·cm²) | 4.069 × 10⁻² |
| 10 CHU/(h·ft²) 0.0813741 cal/(min·cm²) | 8.137 × 10⁻² |
| 20 CHU/(h·ft²) 0.162748 cal/(min·cm²) | 1.627 × 10⁻¹ |
| 25 CHU/(h·ft²) 0.203435 cal/(min·cm²) | 2.034 × 10⁻¹ |
| 50 CHU/(h·ft²) 0.406871 cal/(min·cm²) | 4.069 × 10⁻¹ |
| 100 CHU/(h·ft²) 0.813741 cal/(min·cm²) | 8.137 × 10⁻¹ |
| 250 CHU/(h·ft²) 2.034354 cal/(min·cm²) | 2.034 × 10⁰ |
| 500 CHU/(h·ft²) 4.068707 cal/(min·cm²) | 4.069 × 10⁰ |
| 1000 CHU/(h·ft²) 8.137414 cal/(min·cm²) | 8.137 × 10⁰ |
| Reciprocal & Equivalent Value | Scientific Notation |
|---|---|
| 1 cal/(min·cm²) 122.889162 CHU/(h·ft²) | 1.229 × 10² |
| 5 cal/(min·cm²) 614.445809 CHU/(h·ft²) | 6.144 × 10² |
| 10 cal/(min·cm²) 1228.891618 CHU/(h·ft²) | 1.229 × 10³ |
| 50 cal/(min·cm²) 6144.45809 CHU/(h·ft²) | 6.144 × 10³ |
| 100 cal/(min·cm²) 12288.916181 CHU/(h·ft²) | 1.229 × 10⁴ |
Real-World Context & Everyday Benchmarks
Tap to load into converterTo help contextualize these units in everyday life, science, and engineering, here are verified real-world reference points for CHU/hour/square foot (CHU/(h·ft²)) and Calorie (IT)/minute/square centimeter (cal/(min·cm²)):
CHU/hour/square foot References:
- British historical boiler combustion heat transfer flux 150 CHU/(h·ft²)
Calorie (IT)/minute/square centimeter References:
- Atmospheric solar radiation intensity at midday (solar constant) 1.95 cal/(min·cm²)
How to Convert CHU/hour/square foot to Calorie (IT)/minute/square centimeter
Converting CHU/hour/square foot (CHU/(h·ft²)) to Calorie (IT)/minute/square centimeter (cal/(min·cm²)) is a core calculation in Heat Flux Density, which measures the rate of thermal energy transfer radiating or conducting through a unit area per second. This calculation navigates the boundary between the International Metric System (SI) and British Imperial / US Customary engineering standards. In contemporary metrology, Imperial units are defined in terms of exact SI standards via international agreements—notably NIST SP 811 and the 1959 International Yard and Pound Agreement. Exactly 1 CHU/hour/square foot equals 0.00813741 Calorie (IT)/minute/square centimeter, while 1 cal/(min·cm²) equals 122.889162 CHU/(h·ft²).
Mathematical Conversion Derivation via Coherent SI Base Unit
Under the International System of Quantities (ISQ), dimensional conversion between non-SI units is rigorously resolved by bridging through the coherent SI base unit (watt per square meter (W/m²)) without arbitrary rounding:
1 CHU/(h·ft²) = 5.678269 watt per square meter (W/m²)1 cal/(min·cm²) = 697.79775 watt per square meter (W/m²)V(cal/(min·cm²)) = V(CHU/(h·ft²)) × ( 5.678269 / 697.79775 ) = V(CHU/(h·ft²)) × 0.00813741Value in Calorie (IT)/minute/square centimeter = Value in CHU/hour/square foot × 0.0081374141Direct computational formula applied for standard conversion.To convert 50 CHU/hour/square foot (CHU/(h·ft²)) to Calorie (IT)/minute/square centimeter (cal/(min·cm²)): multiply 50 by 0.00813741 to get 0.406871 cal/(min·cm²). At an industrial engineering scale, 1000 CHU/(h·ft²) converts to 8.137414 cal/(min·cm²).
Inverse check: 1 cal/(min·cm²) = 122.889162 CHU/(h·ft²).Understanding CHU/hour/square foot and Calorie (IT)/minute/square centimeter
CHU/hour/square foot
CHU/(h·ft²)A CHU/hour/square foot (CHU/(h·ft²)) is an imperial and US customary unit for heat flux density.
Applications & Practical Context
In practical heat flux density terms, a British historical boiler combustion heat transfer flux equals 150 CHU/(h·ft²).
A physical magnitude of 1 CHU/(h·ft²) corresponds to 5.678269 W/m² in standard SI measurement.
1 CHU/(h·ft²) = 5.678269 W/m²Calorie (IT)/minute/square centimeter
cal/(min·cm²)A Calorie (IT)/minute/square centimeter (cal/(min·cm²)) is a recognized unit for heat flux density.
Applications & Practical Context
In practical heat flux density terms, a atmospheric solar radiation intensity at midday (solar constant) equals 1.95 cal/(min·cm²).
A physical magnitude of 1 cal/(min·cm²) corresponds to 697.79775 W/m² in standard SI measurement.
1 cal/(min·cm²) = 697.79775 W/m²Domain Metrology & Engineering Applications
Thermal Transmission Flux (q = Q̇ / A)
Rigorously quantified in laboratory and field settings using Schmidt-Boelter heat flux gauges, differential thermopile foil transducers, and calibrated Gardon radiant gauges.
Applied across rocket nozzle combustion chamber analysis, fire resistance testing (ASTM E119), furnace wall heat loss auditing, and hypersonic aerothermal design under international metrology standard ISO 80000-5:2019, ASME PTC 19.3.
Formulas, conversion coefficients, and base definitions on this page strictly adhere to the ISO 80000-5:2019, ASME PTC 19.3 and the BIPM SI Brochure (9th Edition). Governed by Thermal Transmission Flux (q = Q̇ / A) under ISO 80000 dimensional vector [M T⁻³].
Heat Flux Density to Total Thermal Power Bridge (Watts • Kilowatts • Megawatts • BTU/h • Horsepower)
Calculate total continuous heat dissipation power P = q" × A across surface barriers and exchangers, bridging heat flux density [M T⁻³] with thermal power [M L² T⁻³].
P = q" × A
[W/m²] × [m²] → [W]
-
1. Normalize Input to SI Base Unit (W/m²):
q" = 1 CHU/(h·ft²) × 5.67826926 = 5.67826926 W/m² -
2. Apply Engineering Parameter (A):
Selected condition: Industrial Hydronic Radiator Panel (8 m²) at A = 8 m² -
3. Execute Governing Physical Law in SI Units:
P = q" × A = (5.67826926 W/m²) × (8 m²) = 45.426154 W -
4. Convert to Standard Engineering Units:
• W: 45.426154 × 1 = 45.4262 W (Watts) • kW: 45.426154 × 0.001 = 0.04543 kW (Kilowatts) • MW: 45.426154 × 1 × 10⁻⁶ = 4.542615 × 10⁻⁵ MW (Megawatts) • hp: 45.426154 × 0.001341 = 0.06092 hp (Horsepower (Mechanical)) • PS: 45.426154 × 0.00136 = 0.06176 PS (Metric Horsepower (PS)) • BTU/h: 45.426154 × 3.4121 = 155 BTU/h (BTU per Hour)
| Engineering Substance / Operating Standard | Parameter Value (m²) | Reference State / Condition | Typical Industrial & Engineering Application |
|---|---|---|---|
| Residential Window Glazing (4 m²) | 4 |
4.0 m² | Double-pane exterior window glass aperture |
| Industrial Hydronic Radiator Panel (8 m²) | 8 |
8.0 m² | Convective space heating radiator surface |
| Shell & Tube Heat Exchanger (50 m²) | 50 |
50.0 m² | Industrial process fluid cooling bundle |
| Power Boiler Waterwall (200 m²) | 200 |
200.0 m² | Thermal power plant steam generator wall |
Frequently Asked Questions
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