CO2 Tank Runtime Hours Calculator

Budget actual CO2 tank mass inventory minus caller unusable reserve against independently measured duty-weighted mass outlets; no pressure→mass inference, regulator settings, enrichment dose or exposure/combustion safety advice.

Description

CO₂ tank runtime uses measured mass inventory and duty-weighted outlet draw.

CO₂ tank runtime uses measured mass inventory and duty-weighted outlet draw. Tank pressure is not used to infer stored mass.^[1]

Enter nonnegative tank/reserve with reserve≤tank and aligned nonempty nonnegative rates/fractions 0–1 with positive pooled draw. Return usable kg, kg/hour and estimated hours.

When to use CO2 Tank Runtime Hours Calculator

Use CO2 Tank Runtime Hours Calculator when you need to evaluate the supplied records under the calculation and evidence rules below. No regulator setting, enrichment dose, pressure conversion or exposure/combustion advice is supplied.

Prepare the measured crop, container, lighting or inventory records requested. Supply verified local catalogs, calibration factors and crop-stage limits; keep units and dates consistent.

How to use CO2 Tank Runtime Hours Calculator and understand its results

Prepare the measured crop, container, lighting or inventory records requested. Supply verified local catalogs, calibration factors and crop-stage limits; keep units and dates consistent.
Enter observedTankMassKg, unusableReserveMassKg, measuredOutletMassRatesKgHour, callerMeasuredDutyFractions using the field table and calculation rules, then run the tool.
Read usableTankMassKg, modeledTotalMassDrawKgHour, estimatedTankRuntimeHours. The explanation below defines the units, signs, ordering and any flags or placeholder values.
If the tool reports an input issue, correct the values and run it again. Apply the stated assumptions when interpreting a successfully returned result.

Input field	Meaning	Value type; see rules below	Requirement
observedTankMassKg	Observed tank mass kg	number	Required
unusableReserveMassKg	Unusable reserve mass kg	number	Required
measuredOutletMassRatesKgHour	Measured outlet mass rates kg hour	list of number	Required
callerMeasuredDutyFractions	Caller measured duty fractions	list of number	Required

Enter nonnegative tank/reserve with reserve≤tank and aligned nonempty nonnegative rates/fractions 0–1 with positive pooled draw. Return usable kg, kg/hour and estimated hours.

usable=mass−reserve; draw=sum(rate×duty); hours=usable/draw

Units, indexing, boundary conditions and exceptional cases are defined in the calculation rules above.

Output field	Meaning	Value type
usableTankMassKg	Usable tank mass kg	number
modeledTotalMassDrawKgHour	Modeled total mass draw kg hour	number
estimatedTankRuntimeHours	Estimated tank runtime hours	number

json

{
  "input": {
    "observedTankMassKg": 10,
    "unusableReserveMassKg": 2,
    "measuredOutletMassRatesKgHour": [
      1,
      2
    ],
    "callerMeasuredDutyFractions": [
      0.5,
      0.25
    ]
  },
  "output": {
    "usableTankMassKg": 8,
    "modeledTotalMassDrawKgHour": 1,
    "estimatedTankRuntimeHours": 8
  }
}

Limitations and assumptions

No regulator setting, enrichment dose, pressure conversion or exposure/combustion advice is supplied.

Numeric inputs, where present, must be finite. Follow the calculation-specific rules for overflow, underflow and exceptional cases. Numeric lists are limited to 10,000 entries; string lists to 128 strings of at most 128 characters each. The rules above may impose smaller limits. Missing required fields, extra fields, wrong value types and violations of the calculation rules are input errors.

Alternative or Complementary methods

Use Capillary Mat Reservoir Days Calculator: Reservoir duration can be estimated from recorded daily mat draw plus independently measured other losses. Reserved stock reduces usable water. For a complementary task, use Air Changes Per Hour Cooling Calculator: Air changes use measured exhaust flow divided by enclosed volume. Sensible heat removal also depends on a signed temperature difference.

References

CO2 Tank Runtime Hours Calculator — tool.io

Similar or alternative tools

Capillary Mat Reservoir Days Calculator
Reservoir duration can be estimated from recorded daily mat draw plus independently measured other losses. Reserved stock reduces usable water.
Air Changes Per Hour Cooling Calculator
Air changes use measured exhaust flow divided by enclosed volume. Sensible heat removal also depends on a signed temperature difference.