Examples
Examples
Try the starting example
- Inner radius (m)
- 0.025
- Outer radius (m)
- 0.05
- Length (m)
- 10
- Conductivity (W/(m K))
- 0.04
- Temperature difference (K)
- 50
- Radial conduction heat flow (W)
- 181.294406
- Thermal resistance (K/W)
- 0.275795
Try another scenario
- Inner radius (m)
- 0.027500000000000004
- Outer radius (m)
- 0.05
- Length (m)
- 10
- Conductivity (W/(m K))
- 0.04
- Temperature difference (K)
- 50
- Radial conduction heat flow (W)
- 210.197271
- Thermal resistance (K/W)
- 0.237872
Calculation method
Calculation method
Radial conduction heat flow (W)
R=ln(ro/ri)/(2πkL); Q=deltaT/R.
Thermal resistance (K/W)
R=ln(ro/ri)/(2πkL); Q=deltaT/R.
Symbols and units
- a
- Inner radius (m)
- b
- Outer radius (m)
- c
- Length (m)
- d
- Conductivity (W/(m K))
- e
- Temperature difference (K)
Use the units shown. A list keeps the order in which you enter its values. The symbol ^ means “raised to the power of”.
Assumptions & limits
Assumptions & limits
- Uniform cylinder, no ends or convective surface films. Supported limits: All required fields must be finite values of the exact declared type and within displayed bounds. Lists contain1–1000 finite numbers. JSON tables are numeric rectangular rows, at most100 rows and30 columns; individual tools have stricter shape/domain constraints. Uniform cylinder, no ends or convective surface films.
Are these inputs private?
These calculations run in your browser. A shared link contains the values you choose to share. Only questions submitted to the separate AI finder are sent to OpenAI.
Further reading
Background reading; this does not imply endorsement or independent review of SumFizz.