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 ?
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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