Break mean effective pressure - thermodynamics, Mechanical Engineering

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Break Mean Effective Pressure (P_bm):

Likewise, the brake mean effective pressure is given by

430_Break Mean Effective Pressure.png

i_p = indicated power (kW)

bp = Break Powder (kW)

Pim = indicated mean effective pressure (N/m2) Pbm = Break mean effective Pressure (N/m2)

L = length of stroke

A = area of piston (m2)

N = number of power strokes

= rpm for 2 stroke engines = rpm/2 for 4-stroke

K = no. of cylinder.

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