Feeder Jar Refill Frequency
Locate the first forecast feeder reserve crossing with piecewise-constant daily withdrawal; this is not a fixed refill schedule or feeding recommendation.
Description
A feeder reserve threshold can be reached partway through a day when withdrawal is approximated as constant within that day.
A feeder reserve threshold can be reached partway through a day when withdrawal is approximated as constant within that day. The first crossing is different from a fixed repeated refill schedule.1
Locate the first forecast feeder reserve crossing with piecewise-constant daily withdrawal; this is not a fixed refill schedule or feeding recommendation.
When to use Feeder Jar Refill Frequency
Use this tool to locate the first forecast feeder reserve crossing with piecewise-constant daily withdrawal; this is not a fixed refill schedule or feeding recommendation.
Prepare the hive, sample or operating measurements and any supplied target values. Confirm units, timing and whether counts or masses refer to the same population or batch.
How to use Feeder Jar Refill Frequency and understand its results
- Prepare the hive, sample or operating measurements and any supplied target values. Confirm units, timing and whether counts or masses refer to the same population or batch.
- Enter feederUsableVolumeLiters, reserveVolumeLiters, dailyWithdrawalsLiters using the field table and calculation rules, then run the tool.
- Read firstReserveCrossingDay. 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 |
|---|---|---|---|
| feederUsableVolumeLiters | Feeder usable volume liters | number | Required |
| reserveVolumeLiters | Reserve volume liters | number | Required |
| dailyWithdrawalsLiters | Daily withdrawals liters | list of number | Required |
Enter positive starting usable liters, nonnegative reserve strictly below the start and a nonempty nonnegative daily-withdrawal forecast. Subtract withdrawals in sequence and interpolate the first positive-withdrawal day whose ending volume reaches or passes the reserve. Return elapsed days from the forecast start, using zero-based day intervals. No crossing within coverage is an input issue.
crossingDay = dayIndex + (remainingVolume−reserve)/dailyWithdrawal Units, indexing, boundary conditions and exceptional cases are defined in the calculation rules above.
| Output field | Meaning | Value type |
|---|---|---|
| firstReserveCrossingDay | First reserve crossing day | number |
{
"input": {
"feederUsableVolumeLiters": 2,
"reserveVolumeLiters": 0.5,
"dailyWithdrawalsLiters": [
0.5,
0.5,
1
]
},
"output": {
"firstReserveCrossingDay": 2.5
}
}Limitations and assumptions
Withdrawal rates are supplied and piecewise constant. Missing future coverage is not extrapolated; no feeding recommendation or repeated calendar schedule is produced.
Numeric inputs must be finite. Follow the calculation-specific rules for overflow, underflow and exceptional cases. Numeric lists are limited to 100,000 entries; the rules above may require smaller limits. Missing required fields, extra fields, wrong value types and violations of the calculation rules are input errors.
Alternative or Complementary methods
Use Stores Depletion Rate Per Week: Fit net store trend after explicit cumulative feed additions; assumes store mass has already been corrected for hive/brood tare and does not attribute all loss to consumption. For a complementary task, use Syrup Sugar Mass By Concentration: Plan sucrose-mass concentration from desired final volume/density and raw-sugar purity; impurities remain in the mixture and no season-specific feeding recipe is embedded.
References
-
Feeder Jar Refill Frequency — tool.io
Similar or alternative tools
- Stores Depletion Rate Per Week
Fit net store trend after explicit cumulative feed additions; assumes store mass has already been corrected for hive/brood tare and does not attribute all loss to consumption.
- Syrup Sugar Mass By Concentration
Plan sucrose-mass concentration from desired final volume/density and raw-sugar purity; impurities remain in the mixture and no season-specific feeding recipe is embedded.