Exact(9)
The solution was to reduce turbine speeds to acceptable propeller speeds through gearing.
Late in the interwar period, the U.S. Navy adopted double-reduction gearing, which permitted even higher turbine speeds without requiring propellers to run any faster.
Compared to natural gas, the electrical power output was noticeably higher at constant turbine speeds.
Fig. 2 Relationship between mechanical power generation and turbine speeds at different wind speeds for an implementation in a car.
To avoid surging, the turbine outlet temperature had to be reduced at turbine speeds between 64,400 rpm and its maximum of 70,000 rpm.
Cut-in and maximum or rated turbine speeds are also incorporated to compare how these factors influence both the power production and effect on currents.
Similar(51)
Since both extraction pressures and turbine speed should be kept constant, a complex system is required for controlling steam flow, which increases the cost.
Each point for the power curves has three values: turbine output power, wind speed, and turbine speed.
Comparing with the other commercial turbines, the performance was excellent at a slow turbine speed.
Table 1 Statistics of points A, B, C, and D Point Wind speed/(m/s) Turbine speed/(p.u).
Reference [6] proposed a method to forecast the turbine speed that combined the NWP input speed data with the turbine speed data using the fan standard power curve to calculate the power.
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