Calculation formulas for thermal project planning

No.

Formula

4.1

Calculating the effective speed of the brake

[nB_m] = min-1

Effective speed of the brake

[tn] = s

Duration of the individual travel sections with released brake

[nM_n] = min-1

Motor speed of the individual travel sections with released brake

4.2

Check of the effective speed of the brake

[nB_th_k] = min-1

Thermal breakpoint speed of the brake, see chapter Permitted cyclic duration factor and thermal breakpoint speed

[fB_AH]

Application factor for taking into account the installation altitude of the brakemotor above sea level

4.3

Calculating the cyclic duration factor of the brake

[cdfB] = %

Cyclic duration factor of the brake

[tn] = s

Duration of the individual travel sections with released brake

[ttot] = s

Duration of the entire travel cycle

4.4

Check of the cyclic duration factor of the brake

[cdfB_per] = %

Permitted cyclic duration factor of the brake, see chapter Permitted cyclic duration factor and thermal breakpoint speed