Page 241 - Handbook of Energy Engineering Calculations
P. 241
the engine is held at 1400 r/min or below, stalling of the engine may occur
easily when the load is increased. Such an increase will cause engine speed to
reduce, resulting in a decrease in torque and causing further reduction in
speed until the engine finally stalls abruptly, unless the load can be quickly
released.
Figure 12b shows performance curves for a typical high-speed engine with
maximum power output at top speed. The torque curve for this engine is flat
and the engine is not desirable for industrial or agricultural type installations.