Steam Lap at Admission and Cutoff Solution

STEP 0: Pre-Calculation Summary
Formula Used
Steam Lap = Eccentricity or Throw of Eccentric*(sin(Crank Angle+Angle of advance of the eccentric))
s = r*(sin(θ+α))
This formula uses 1 Functions, 4 Variables
Functions Used
sin - Sine is a trigonometric function that describes the ratio of the length of the opposite side of a right triangle to the length of the hypotenuse., sin(Angle)
Variables Used
Steam Lap - (Measured in Meter) - Steam Lap is the amount (or distance) that the steam side of the valve overlaps the port.
Eccentricity or Throw of Eccentric - (Measured in Meter) - Eccentricity or Throw of Eccentric is the extent to which the mantle veers from its axis, so it defines the rate at which the material falls through the chamber.
Crank Angle - (Measured in Radian) - Crank Angle refers to the position of an engine's crankshaft in relation to the piston as it travels inside of the cylinder wall.
Angle of advance of the eccentric - (Measured in Radian) - Angle of advance of the eccentric the angle in excess of 90° that a steam-engine valve gear is in advance of the crank.
STEP 1: Convert Input(s) to Base Unit
Eccentricity or Throw of Eccentric: 3 Millimeter --> 0.003 Meter (Check conversion here)
Crank Angle: 30 Degree --> 0.5235987755982 Radian (Check conversion here)
Angle of advance of the eccentric: 15.5 Degree --> 0.27052603405907 Radian (Check conversion here)
STEP 2: Evaluate Formula
Substituting Input Values in Formula
s = r*(sin(θ+α)) --> 0.003*(sin(0.5235987755982+0.27052603405907))
Evaluating ... ...
s = 0.00213975134746223
STEP 3: Convert Result to Output's Unit
0.00213975134746223 Meter -->2.13975134746223 Millimeter (Check conversion here)
FINAL ANSWER
2.13975134746223 2.139751 Millimeter <-- Steam Lap
(Calculation completed in 00.004 seconds)

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8 Steam Engine Valves and Reversing Gears Calculators

Displacement of Valve from its Mid-Position
Go Displacement of valve from mid-position = Eccentricity or Throw of Eccentric*sin(Crank Angle+Angle of advance of the eccentric)
Exhaust Lap
Go Exhaust Lap = -Eccentricity or Throw of Eccentric*(sin(Crank Angle+Angle of advance of the eccentric))
Crank Angle
Go Crank Angle = asin(-Exhaust Lap/Eccentricity or Throw of Eccentric)-Angle of advance of the eccentric
Centrifugal Force Acting on Ball for given Mass of Ball
Go Centrifugal Force = (Mass of Ball*Acceleration due to Gravity*Radius of Rotation)/Height of governor
Steam Lap at Admission and Cutoff
Go Steam Lap = Eccentricity or Throw of Eccentric*(sin(Crank Angle+Angle of advance of the eccentric))
Angle of Advance of Eccentric
Go Angle of advance of the eccentric = asin((Steam Lap+Lead)/Eccentric Centre Line)
Centrifugal Force Acting on Ball for given Weight of Ball
Go Centrifugal Force = (Weight of Ball*Radius of Rotation)/Height of governor
Eccentricity or Throw of Eccentric
Go Eccentricity or Throw of Eccentric = (Travel of Valve)/2

Steam Lap at Admission and Cutoff Formula

Steam Lap = Eccentricity or Throw of Eccentric*(sin(Crank Angle+Angle of advance of the eccentric))
s = r*(sin(θ+α))

What is the eccentric throw?

The eccentric throw is the extent to which the mantle veers from its axis, so it defines the rate at which the material falls through the chamber.

How to Calculate Steam Lap at Admission and Cutoff?

Steam Lap at Admission and Cutoff calculator uses Steam Lap = Eccentricity or Throw of Eccentric*(sin(Crank Angle+Angle of advance of the eccentric)) to calculate the Steam Lap, Steam lap at admission and cutoff (Crank Position) is the displacement of the valve from its mid-position at admission and cut-off. Steam Lap is denoted by s symbol.

How to calculate Steam Lap at Admission and Cutoff using this online calculator? To use this online calculator for Steam Lap at Admission and Cutoff, enter Eccentricity or Throw of Eccentric (r), Crank Angle (θ) & Angle of advance of the eccentric (α) and hit the calculate button. Here is how the Steam Lap at Admission and Cutoff calculation can be explained with given input values -> 2139.751 = 0.003*(sin(0.5235987755982+0.27052603405907)).

FAQ

What is Steam Lap at Admission and Cutoff?
Steam lap at admission and cutoff (Crank Position) is the displacement of the valve from its mid-position at admission and cut-off and is represented as s = r*(sin(θ+α)) or Steam Lap = Eccentricity or Throw of Eccentric*(sin(Crank Angle+Angle of advance of the eccentric)). Eccentricity or Throw of Eccentric is the extent to which the mantle veers from its axis, so it defines the rate at which the material falls through the chamber, Crank Angle refers to the position of an engine's crankshaft in relation to the piston as it travels inside of the cylinder wall & Angle of advance of the eccentric the angle in excess of 90° that a steam-engine valve gear is in advance of the crank.
How to calculate Steam Lap at Admission and Cutoff?
Steam lap at admission and cutoff (Crank Position) is the displacement of the valve from its mid-position at admission and cut-off is calculated using Steam Lap = Eccentricity or Throw of Eccentric*(sin(Crank Angle+Angle of advance of the eccentric)). To calculate Steam Lap at Admission and Cutoff, you need Eccentricity or Throw of Eccentric (r), Crank Angle (θ) & Angle of advance of the eccentric (α). With our tool, you need to enter the respective value for Eccentricity or Throw of Eccentric, Crank Angle & Angle of advance of the eccentric and hit the calculate button. You can also select the units (if any) for Input(s) and the Output as well.
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