Quick Answer
Calculate Traction Elevator Regenerative Braking Energy Recovery Estimator
Calculator
Result Interpretation
Traction Elevator Regenerative Braking Energy Recovery Estimator Calculator computes Regenerative Braking Energy Recovery in J using the defined engineering formula and the input values provided.
Worked Example
Verified calculation
Given:
- Round-Trip Time = 120
- Rated Motor Power = 15000
- Average Load Fraction = 0.45
- Safety Factor for Regen Limiting = 0.15
- Drive Efficiency = 0.88
- Motor Efficiency = 0.92
Expected Result:
- Regenerative Braking Energy Recovery = 77.418
Engineering Interpretation:
Under the given input conditions, the calculated result is: Regenerative Braking Energy Recovery = 77.418 J.
The actual numerical result is computed by the Runtime engine using the persisted tool definition. The values shown here come from automatically validated test cases.
Formula / Method
regenerative braking energy recovery = (rated motor power * round-trip time * 0.5 * average load fraction * motor efficiency * drive efficiency * (1 - safety factor for regen limiting)) / 3600.0Formula family: formula_elevator_traction_elevator_regenerative_braking_energy_recovery_estimator
Variables
| Symbol | Label | Role | Description |
|---|---|---|---|
| motor_power | Rated Motor Power | INPUT | Rated Motor Power |
| rtt | Round-Trip Time | INPUT | Round-Trip Time |
| load_fraction | Average Load Fraction | INPUT | Average Load Fraction |
| efficiency_motor | Motor Efficiency | INPUT | Motor Efficiency |
| efficiency_drive | Drive Efficiency | INPUT | Drive Efficiency |
| safety_factor | Safety Factor for Regen Limiting | INPUT | Safety Factor for Regen Limiting |
| energy_recovery | Regenerative Braking Energy Recovery | OUTPUT | Regenerative Braking Energy Recovery |
Calculation Steps
- Enter the rated motor power in W.
- Enter the round-trip time in s.
- Enter the average load fraction in 1.
- Enter the motor efficiency in 1.
- Enter the drive efficiency in 1.
- Enter the safety factor for regen limiting in 1.
- Step 1: Compute regenerative braking energy recovery.
- Read the regenerative braking energy recovery (J) from the results.
Engineering Summary
Calculate Traction Elevator Regenerative Braking Energy Recovery Estimator
Frequently Asked Questions
What does this calculator calculate?
The Traction Elevator Regenerative Braking Energy Recovery Estimator Calculator estimates Regenerative Braking Energy Recovery based on the input parameters you provide
Why is rated motor power important in this calculation?
rated motor power is directly proportional to regenerative braking energy recovery. When you enter rated motor power in W, the calculator uses it in the engineering formula to compute the output
How should I interpret the result regenerative braking energy recovery?
The calculator outputs regenerative braking energy recovery in J. For larger energy values, divide by 1000 to express in kJ. The result is computed directly from the input values using the defined engineering formula
What units should I use for the inputs?
Enter each value in the units shown next to the input field: Rated Motor Power (W), Round-Trip Time (s). Make sure all inputs use the specified units for consistent results
What assumptions does this calculator use?
This calculator uses automatically validated engineering formulas. Results are approximate and should be validated against site-specific conditions, applicable codes, and professional engineering judgment
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