Examples
Examples
Try the starting example
- Hot stream heat capacity rate (W/K)
- 1000
- Cold stream heat capacity rate (W/K)
- 800
- Hot inlet temperature (°C)
- 80
- Cold inlet temperature (°C)
- 20
- Hot outlet temperature (°C)
- 50
- Cold outlet temperature (°C)
- 57.5
- Hot-side heat duty (W)
- 30000
- Cold-side heat duty (W)
- 30000
- Capacity rate ratio
- 0.8
- Hot-side effectiveness fraction
- 0.625
- Energy-balance mismatch (W)
- 0
Try another scenario
- Hot stream heat capacity rate (W/K)
- 1100
- Cold stream heat capacity rate (W/K)
- 800
- Hot inlet temperature (°C)
- 80
- Cold inlet temperature (°C)
- 20
- Hot outlet temperature (°C)
- 50
- Cold outlet temperature (°C)
- 57.5
- Hot-side heat duty (W)
- 33000
- Cold-side heat duty (W)
- 30000
- Capacity rate ratio
- 0.727273
- Hot-side effectiveness fraction
- 0.6875
- Energy-balance mismatch (W)
- 3000
Calculation method
Calculation method
Hot-side heat duty (W)
Qh=Ch(Thi-Tho), Qc=Cc(Tco-Tci); Cr=Cmin/Cmax; effectiveness=Qh/[Cmin(Thi-Tci)].
Cold-side heat duty (W)
Qh=Ch(Thi-Tho), Qc=Cc(Tco-Tci); Cr=Cmin/Cmax; effectiveness=Qh/[Cmin(Thi-Tci)].
Capacity rate ratio
Qh=Ch(Thi-Tho), Qc=Cc(Tco-Tci); Cr=Cmin/Cmax; effectiveness=Qh/[Cmin(Thi-Tci)].
Hot-side effectiveness fraction
Qh=Ch(Thi-Tho), Qc=Cc(Tco-Tci); Cr=Cmin/Cmax; effectiveness=Qh/[Cmin(Thi-Tci)].
Energy-balance mismatch (W)
Qh=Ch(Thi-Tho), Qc=Cc(Tco-Tci); Cr=Cmin/Cmax; effectiveness=Qh/[Cmin(Thi-Tci)].
Symbols and units
- a
- Hot stream heat capacity rate (W/K)
- b
- Cold stream heat capacity rate (W/K)
- c
- Hot inlet temperature (°C)
- d
- Cold inlet temperature (°C)
- e
- Hot outlet temperature (°C)
- f
- Cold outlet temperature (°C)
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
- Measured steady sensible-heat streams, constant heat capacity; no NTU geometry or phase-change model. 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. Measured steady sensible-heat streams, constant heat capacity; no NTU geometry or phase-change model.
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.