Description
Subtract a supplied temperature reference.
Engineering scalar terms depend on mass versus mole bases, absolute state variables and the process boundary. A vapor/liquid ratio differs from a reaction equilibrium constant, space time differs from a measured residence-time distribution, and fouling-area scaling preserves a specified heat-transfer product. Supplied terms do not validate an actual process.
Subtract a supplied temperature reference.
When to use this tool
Use Process Stream Temperature Reference Offset when you already have temperature, referenceTemperature and need to subtract a supplied temperature reference.
How to use the tool and how it works
- Enter temperature, referenceTemperature. Use the units and conventions below.
- Run the tool. Correct any format, range, or cross-field input error before interpreting the output.
- Read temperatureDifference. Use the output convention below.
Return temperature-referenceTemperature with signs preserved.1
| Input field | Meaning and units | Accepted input |
|---|---|---|
| temperature | Temperature | Required. Finite number. |
| referenceTemperature | Reference Temperature | Required. Finite number. |
| Output field | Interpretation | Returned shape |
|---|---|---|
| temperatureDifference | Temperature Difference | Required. Finite number. |
{
"input": {
"temperature": 80,
"referenceTemperature": 25
},
"output": {
"temperatureDifference": 55
}
}Limitations and assumptions
- Temperature scales and reference conventions must match. No temperature, heat flow, phase, calibration, control limit or safe state is determined.
- Inputs must satisfy both the field types and the cross-field conditions above. Invalid input causes an error; a successful false flag or documented placeholder is a different result.
- Numeric calculations use binary floating point unless exact decimal-integer arithmetic is explicitly stated. No hidden measurement tolerance or decimal rounding is added; nonfinite or out-of-contract results are rejected. Numeric signed-zero results are exported as zero.
Alternative or Complementary methods
Use complete material, energy, phase and equipment models with verified operating conditions. Check concentration bases, gas reference states and measurement uncertainty before applying local ratios or balances to process design or operation.
References
Similar or alternative tools
- Process Stream Component Mass Term
Calculate component mass flow from supplied total mass flow and fraction.
- Process Valve Rangeability Ratio
Calculate a supplied controllable-flow rangeability ratio.