Willans line

Willans line

[′wil·ənz ‚līn]
(mechanical engineering)
The line (nearly straight) on a graph showing steam consumption (pounds per hour) versus power output (kilowatt or horsepower) for a steam engine or turbine; frequently extended to show total fuel consumed (pounds per hour) for gas turbines, internal combustion engines, and complete power plants.
References in periodicals archive ?
For simplicity, appropriate Willans line model is usually used to express the function of the engine power and speed.
The gradient and intercept of each Willans line can be expressed as polynomial functions normally depending on engine speed, by
The graphic shown in Figure 5 derives from the Willans lines.
To understand the principle behind optimizing a vehicles gear ratio, the Willans lines are used again.
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