How do you calculate watts on a bike?
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How do you calculate watts on a bike?
To calculate the wattage you need three components: Gravity Fg , with formula Fg = g * sin(arctan(slope)) * (M + m) , where: g is the gravitational parameter; and. M and m the masses of cyclist and bike, respectively.
What is a Monark cycle ergometer flywheel distance?
On a Monark ergometer, one full revolution of the pedals will cause a point on the flywheel to move 6 meters through space.
How do you calculate power in KGM min?
For example if force is 2 kg and rpms is 100, then power is 2 x 100 x 6 = 1200 kgm.min-1 . The power in watts is 1200/6 or 200 watts. A shortcut to calculating watts is F x rpm.
How do you calculate work rate on Monark cycle ergometer?
Work on a Monark ergometer is calculated as; W = Braking load x Distance Where one revolution on the crank equals six meters in distance and the breaking load is in kiloponds or Newtons.
How do you calculate the power output of a motor?
By taking the voltage and multiplying it by the associated current, the power can be determined. A watt (W) is a unit of power defined as one Joule per second. For a DC source the calculation is simply the voltage times the current: W = V x A.
How do you calculate watts on a cycle ergometer?
To calculate the power output, you will have to convert kpm/min to Newtons per minute (N/min) P = (720 kmp/min x 9.81) / 60 seconds = 118 W. This can easily be simplified and approximated as: Power output = Braking load x RPM P = 2 kp x 60 RPM = 120 W.
How do you convert kg to watts?
Conversion chart – kilograms force meter/second to watts
- kilogram metre per second to watts = 9.81 W.
- kilograms force meter/second to watts = 19.61 W.
- kilograms force meter/second to watts = 29.42 W.
- kilograms force meter/second to watts = 39.23 W.
- kilograms force meter/second to watts = 49.03 W.
Is 160 watts good cycling?
No exact watt number is appropriate for all riders. Generally speaking, a beginner cyclist may average around 75–100 watts in a 1-hour workout. A fit participant will average more than 100 watts, and pro cyclists can reach 400 watts per hour.
How many watts is 60 mph?
For example the power required to travel 60 mph (converted to m/s) might be 20kW, driving for ninety minutes would mean you use (20 000)(1.5) = 30 kWh of energy. Assuming no efficiency losses (in the drive train or batteries) you would get 90 miles of range with a 30kwh pack.
How do you convert work rate to Watts?
Another common, and scientifically more correct means of expressing power is in units of watts (also known as joule/sec or N-m/sec). The conversion factor from kg-m/min to watts is: 1 watt = 6.1 kg-m/min or 100 kg-m/min = 16.35 watts….
| Work Rate (watts) | Work Rate (kgm/min) | O2 uptake (l/min) |
|---|---|---|
| 400 | 2400 | 5.7 |
How do you calculate watts to RPM?
In years to come you will want every watt you can get….ELECTRICAL UNIT CONVERSIONS.
| VALUE | 1-PHASE | 3-PHASE |
|---|---|---|
| RPM (n) | Hertz X 120 Rotor Poles | Hertz X 120 Rotor Poles |
| NUMBER OF ROTOR POLES (P) | Hertz X 120 RPM | Hertz X 120 RPM |
| POWER FACTOR (PF) | Actual Watts I X E | Actual Watts I X 1.73 X E |
| HORSEPOWER (HP) | I v E X PF 746 X EFF | I X E X 1.73 X PF 746 X EFF |
How do you calculate watts from RPM and torque?
Calculate the motor power rating in watts of the ac motor which has rated torque of 144Nm at 1480 rpm. Apply our torque to watt conversion formula, Motor power in watt = 0.105 * 144 * 1480 = 22306 Watts.
How many METs is 100 Watts?
8.0 x 3.5 x 88.6 / 200 = 12.4 Kcal/min x 120 = 1488 Kcal….Here is a table of MET values for many popular activities:
| Activity | METs |
|---|---|
| Stationary cycling; (moderate-to-vigorous effort / 90-100 watts) | 6.8 |
