Flashcards
IC Engines - equations
Flashcards do conjunto (29)
- 1r(Vd+Vc)/Vc
- 2V(theta)Vc + (pi*b^2)*y/4
- 3Average Piston Speed2Ns
- 4gammaCp/Cv
- 5RCp-Cv
- 6Isentropic Relationship p,v,gammapV^gamma = constant
- 7Ideal Gas LawpV=mRT
- 8mepWnet/Vd
- 9VdAp*s*nc
- 10Pmep*vd*N/X
- 11Specific powerPb/Ap*nc = bmep* meanpiston speed/2X
- 12bsfcm(dot)/Pb
- 13Cut-off ratio, BetaV3/V2;
if beta = 1 , otto cycle - 14Qin (Petrol)m*Cv(T3-T2)
- 15Qin (Diesel)m*Cp(T3-T2)
- 16Qin (Dual)m*Cv(T2.5-T2) + m*Cp(T3-T2.5)
- 17Pressure rise parameter, AlphaP3/P2 = P2.5/P2;
if alpha = 1, diesel cycle - 18Miller cycle principleEfficiency can be increased if EXPANSION ratio is GREATER than COMPRESSION ratio.
- Early/Late inlet valve closing, decrease r. - 19Lambdare/rc
- 20Equivalence ratio, PhiAFRstoic/AFRactual
- 21Actual flow area (VALVES)pi*D*L*(1+Di/D)/2 * cos(theta)
- 22Flow coefficientm(Dot)f/m(dot)f(c) = A^ef/Af
- 23Mach index, ZU(bar)v/a= [U(bar)p/a*Ci] * [(b/D)^2]
- 24R (piston geometry)l/a
- 25Efficiency1-r^(1-gamma)
- 26Workintegral (Pdv)
- 27QIntegral (Tds)
- 28Tdsdu + Pdv
- 29TdsmCvdt
Informações
- Descrição
- 4TH YEAR IC engines FlashCards sobre IC Engines - equations, criado por Nick Gray em 03-01-2018.
- Criado por
- Nick Gray
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