Btus (th)/hour/sq. foot to Dynes/hour/centimeter Converter (Btu(th)/(h·ft²) to dyn/(h·cm))
Btu(th)/(h·ft²) × 113489.27179609 = dyn/(h·cm)
Calculation: 1 Btu(th)/(h·ft²) × 113489.27179609 = 113489.27179609 dyn/(h·cm)
Common Btu (th)/hour/sq. foot to Dyne/hour/centimeter Calculations
Quick-lookup reference table showing calculated equivalents for standard increments between Btu (th)/hour/sq. foot (Btu(th)/(h·ft²)) and Dyne/hour/centimeter (dyn/(h·cm)).
| Conversion & Equivalent Value | Scientific Notation |
|---|---|
| 0.001 Btu(th)/(h·ft²) 113.489272 dyn/(h·cm) | 1.135 × 10² |
| 0.01 Btu(th)/(h·ft²) 1134.892718 dyn/(h·cm) | 1.135 × 10³ |
| 0.1 Btu(th)/(h·ft²) 11348.92718 dyn/(h·cm) | 1.135 × 10⁴ |
| 0.5 Btu(th)/(h·ft²) 56744.635898 dyn/(h·cm) | 5.674 × 10⁴ |
| 1 Btu(th)/(h·ft²) 113489.271796 dyn/(h·cm) | 1.135 × 10⁵ |
| 2 Btu(th)/(h·ft²) 226978.543592 dyn/(h·cm) | 2.27 × 10⁵ |
| 5 Btu(th)/(h·ft²) 567446.35898 dyn/(h·cm) | 5.674 × 10⁵ |
| 10 Btu(th)/(h·ft²) 1134892.717961 dyn/(h·cm) | 1.135 × 10⁶ |
| 20 Btu(th)/(h·ft²) 2269785.435922 dyn/(h·cm) | 2.27 × 10⁶ |
| 25 Btu(th)/(h·ft²) 2837231.794902 dyn/(h·cm) | 2.837 × 10⁶ |
| 50 Btu(th)/(h·ft²) 5674463.589804 dyn/(h·cm) | 5.674 × 10⁶ |
| 100 Btu(th)/(h·ft²) 1.134893 × 10⁷ dyn/(h·cm) | 1.135 × 10⁷ |
| 250 Btu(th)/(h·ft²) 2.837232 × 10⁷ dyn/(h·cm) | 2.837 × 10⁷ |
| 500 Btu(th)/(h·ft²) 5.674464 × 10⁷ dyn/(h·cm) | 5.674 × 10⁷ |
| 1000 Btu(th)/(h·ft²) 1.134893 × 10⁸ dyn/(h·cm) | 1.135 × 10⁸ |
| Reciprocal & Equivalent Value | Scientific Notation |
|---|---|
| 1 dyn/(h·cm) 8.811406 × 10⁻⁶ Btu(th)/(h·ft²) | 8.811 × 10⁻⁶ |
| 5 dyn/(h·cm) 4.405703 × 10⁻⁵ Btu(th)/(h·ft²) | 4.406 × 10⁻⁵ |
| 10 dyn/(h·cm) 8.811406 × 10⁻⁵ Btu(th)/(h·ft²) | 8.811 × 10⁻⁵ |
| 50 dyn/(h·cm) 0.00044057 Btu(th)/(h·ft²) | 4.406 × 10⁻⁴ |
| 100 dyn/(h·cm) 0.000881141 Btu(th)/(h·ft²) | 8.811 × 10⁻⁴ |
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 Btu (th)/hour/sq. foot (Btu(th)/(h·ft²)) and Dyne/hour/centimeter (dyn/(h·cm)):
Btu (th)/hour/sq. foot References:
- Solar constant extraterrestrial solar irradiance at top of atmosphere 431.72 Btu(th)/(h·ft²)
- Clear sky direct midday summer sunlight striking sea level ground 317.21 Btu(th)/(h·ft²)
- Human body resting thermal metabolic heat radiation to room 15.8605 Btu(th)/(h·ft²)
- Overcast winter day diffuse solar irradiance at sea level 31.7211 Btu(th)/(h·ft²)
Dyne/hour/centimeter References:
- CGS heat flux unit: Low-temperature cryogenic boil-off flux 5000 dyn/(h·cm)
How to Convert Btu (th)/hour/sq. foot to Dyne/hour/centimeter
Converting Btu (th)/hour/sq. foot (Btu(th)/(h·ft²)) to Dyne/hour/centimeter (dyn/(h·cm)) 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 bridges modern MKSA metric standards with the historical Gaussian centimetre-gram-second (CGS) electrostatic and electromagnetic framework. In CGS systems, electromagnetic units (such as statvolts, abvolts, dynes, ergs, and gauss) are formulated directly from mechanical dimensions, with electrostatic-to-electromagnetic relations tied to the speed of light in vacuum (c ≈ 2.99792458 × 1010 cm/s). Exactly 1 Btu (th)/hour/sq. foot translates to 113489.271796 Dyne/hour/centimeter (1 dyn/(h·cm) = 8.811406 × 10⁻⁶ Btu(th)/(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 Btu(th)/(h·ft²) = 3.15248 watt per square meter (W/m²)1 dyn/(h·cm) = 2.777778 × 10⁻⁵ watt per square meter (W/m²)V(dyn/(h·cm)) = V(Btu(th)/(h·ft²)) × ( 3.15248 / 2.777778 × 10⁻⁵ ) = V(Btu(th)/(h·ft²)) × 113489.271796Value in Dyne/hour/centimeter = Value in Btu (th)/hour/sq. foot × 113489.27179609Direct computational formula applied for standard conversion.For an engineering input of 75 Btu(th)/(h·ft²), applying the conversion factor yields exactly 8511695.384707 dyn/(h·cm). At larger operational scale, 100 Btu (th)/hour/sq. foot corresponds to 1.134893 × 10⁷ dyn/(h·cm).
Inverse check: 1 dyn/(h·cm) = 8.811406 × 10⁻⁶ Btu(th)/(h·ft²).Understanding Btu (th)/hour/sq. foot and Dyne/hour/centimeter
Btu (th)/hour/sq. foot
Btu(th)/(h·ft²)A Btu (th)/hour/sq. foot (Btu(th)/(h·ft²)) is an imperial and US customary unit for heat flux density.
Applications & Practical Context
In practical heat flux density terms, a solar constant extraterrestrial solar irradiance at top of atmosphere equals 431.72 Btu(th)/(h·ft²), a clear sky direct midday summer sunlight striking sea level ground equals 317.21 Btu(th)/(h·ft²), a human body resting thermal metabolic heat radiation to room equals 15.8605 Btu(th)/(h·ft²).
A physical magnitude of 1 Btu(th)/(h·ft²) corresponds to 3.15248 W/m² in standard SI measurement.
1 Btu(th)/(h·ft²) = 3.15248 W/m²Dyne/hour/centimeter
dyn/(h·cm)A Dyne/hour/centimeter (dyn/(h·cm)) is a unit of heat flux density in the centimeter-gram-second (CGS) system.
Applications & Practical Context
In practical heat flux density terms, a CGS heat flux unit: Low-temperature cryogenic boil-off flux equals 5000 dyn/(h·cm).
A physical magnitude of 1 dyn/(h·cm) corresponds to 2.777778 × 10⁻⁵ W/m² in standard SI measurement.
1 dyn/(h·cm) = 2.777778 × 10⁻⁵ 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 Btu(th)/(h·ft²) × 3.15247977 = 3.15247977 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 = (3.15247977 W/m²) × (8 m²) = 25.219838 W -
4. Convert to Standard Engineering Units:
• W: 25.219838 × 1 = 25.2198 W (Watts) • kW: 25.219838 × 0.001 = 0.02522 kW (Kilowatts) • MW: 25.219838 × 1 × 10⁻⁶ = 2.521984 × 10⁻⁵ MW (Megawatts) • hp: 25.219838 × 0.001341 = 0.03382 hp (Horsepower (Mechanical)) • PS: 25.219838 × 0.00136 = 0.03429 PS (Metric Horsepower (PS)) • BTU/h: 25.219838 × 3.4121 = 86.05 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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