Examples
Examples
Try the starting example
- Layers JSON [[thickness m, conductivity W/(m K)],...]
- [[0.1,0.04],[0.015,0.2]]
- Wall area (m²)
- 10
- Hot-minus-cold temperature (K)
- 20
- Area-normalized thermal resistance (m² K/W)
- 2.575
- Conduction heat flow (W)
- 77.669903
Try another scenario
- Layers JSON [[thickness m, conductivity W/(m K)],...]
- [[1.1,0.04],[0.015,0.2]]
- Wall area (m²)
- 10
- Hot-minus-cold temperature (K)
- 20
- Area-normalized thermal resistance (m² K/W)
- 27.575
- Conduction heat flow (W)
- 7.252947
Calculation method
Calculation method
Area-normalized thermal resistance (m² K/W)
Series layers: Rarea=sum(thickness/conductivity); Q=area deltaT/Rarea.
Conduction heat flow (W)
Series layers: Rarea=sum(thickness/conductivity); Q=area deltaT/Rarea.
Symbols and units
- a
- Layers JSON [[thickness m, conductivity W/(m K)],...]
- b
- Wall area (m²)
- c
- Hot-minus-cold temperature (K)
Use the units shown. A list keeps the order in which you enter its values. The symbol ^ means “raised to the power of”.
Calculation steps and notation
sum(list) adds all entries in the list.
Assumptions & limits
Assumptions & limits
- Steady one-dimensional conduction, no surface films or bridges. 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. Steady one-dimensional conduction, no surface films or bridges.
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.