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Kitar Piawaian Udara Otto. Dual Air Standard Cycle. Engine Performance Criteria. Indicated Mean Effective Pressure, P i or i.m.e.p. ,. P i =. = i.m.e.p. Indicated Power, IP. IP =. Torque, T. Brake Power, BP. BP=. = BP/IP. ,(Specific fuel consumption, sfc).
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Kitar Piawaian Udara Otto Reciprocating Internal Combustion Engine SME 2423-2006/2007-2
Reciprocating Internal Combustion Engine SME 2423-2006/2007-2
Reciprocating Internal Combustion Engine SME 2423-2006/2007-2
Reciprocating Internal Combustion Engine SME 2423-2006/2007-2
Reciprocating Internal Combustion Engine SME 2423-2006/2007-2
Reciprocating Internal Combustion Engine SME 2423-2006/2007-2
Reciprocating Internal Combustion Engine SME 2423-2006/2007-2
Reciprocating Internal Combustion Engine SME 2423-2006/2007-2
Dual Air Standard Cycle Reciprocating Internal Combustion Engine SME 2423-2006/2007-2
Reciprocating Internal Combustion Engine SME 2423-2006/2007-2
Reciprocating Internal Combustion Engine SME 2423-2006/2007-2
Reciprocating Internal Combustion Engine SME 2423-2006/2007-2
Engine Performance Criteria Indicated Mean Effective Pressure, Pior i.m.e.p. , Pi = = i.m.e.p. Reciprocating Internal Combustion Engine SME 2423-2006/2007-2
Reciprocating Internal Combustion Engine SME 2423-2006/2007-2
Reciprocating Internal Combustion Engine SME 2423-2006/2007-2
Reciprocating Internal Combustion Engine SME 2423-2006/2007-2
Indicated Power, IP IP = Reciprocating Internal Combustion Engine SME 2423-2006/2007-2
Reciprocating Internal Combustion Engine SME 2423-2006/2007-2
Torque, T Brake Power, BP Reciprocating Internal Combustion Engine SME 2423-2006/2007-2
Reciprocating Internal Combustion Engine SME 2423-2006/2007-2
BP= Reciprocating Internal Combustion Engine SME 2423-2006/2007-2
= BP/IP Reciprocating Internal Combustion Engine SME 2423-2006/2007-2
Reciprocating Internal Combustion Engine SME 2423-2006/2007-2
Reciprocating Internal Combustion Engine SME 2423-2006/2007-2
Reciprocating Internal Combustion Engine SME 2423-2006/2007-2
,(Specific fuel consumption, sfc) Reciprocating Internal Combustion Engine SME 2423-2006/2007-2
Reciprocating Internal Combustion Engine SME 2423-2006/2007-2
Volumetric Efficiency, v Reciprocating Internal Combustion Engine SME 2423-2006/2007-2
Reciprocating Internal Combustion Engine SME 2423-2006/2007-2
Energy Balance Reciprocating Internal Combustion Engine SME 2423-2006/2007-2
Morse Test Reciprocating Internal Combustion Engine SME 2423-2006/2007-2
Reciprocating Internal Combustion Engine SME 2423-2006/2007-2
Reciprocating Internal Combustion Engine SME 2423-2006/2007-2
Reciprocating Internal Combustion Engine SME 2423-2006/2007-2
Reciprocating Internal Combustion Engine SME 2423-2006/2007-2
Reciprocating Internal Combustion Engine SME 2423-2006/2007-2
Reciprocating Internal Combustion Engine SME 2423-2006/2007-2
Contoh Soalan Tutorial No. 12 • Sebuah enjin gas 4-lejang mempunyai data-data seperti berikut :- • Bilangan silinder = 6 • Dayakilas brek = 5.2 kNm • Kelajuan enjin = 360 ppm • Garispusat gerek = 270 mm • Panjang lejang = 350 mm • Luas gambarajah tertunjuk = 1590 mm2 • Panjang gambarajah tertunjuk = 60 mm • Pemalar pegas = 0.23 bar/mm • Nilai kalori rendah bahan api = 18000 kJ/m3 • Kecekapan isipadu = 0.8 • Nisbah isipadu udara bahan api = 9:1 • Kirakan, • a) kuasa brek • b) tekanan berkesan min brek • c) kecekapan mekanik • d) kecekapan haba brek. = n = T = N = D = L = a = l = s = LCV = v = AFR Reciprocating Internal Combustion Engine SME 2423-2006/2007-2
Contoh Soalan Tutorial No. 14 • Sebuah enjin petrol 4-lejang mempunyai data-data seperti berikut :- • Bilangan silinder = 8 • Kuasa brek = 186.5 kW • Kelajuan enjin = 4400 ppm • Kecekapan haba brek = 0.32 • Nisbah udara bahan api, A/F = 12/1 • Kecekapan isipadu = 69% • Nisbah lejang/garispusat omboh, L/D = 0.8 • Nilai kalori rendah, L.C.V. = 44200 kJ/kg • Keadaan udara bebas, po dan To = 1.013 bar & 15oC • Dengan menggunakan data-data seperti di atas, kirakan garispusat dan lejang omboh enjin ini. Reciprocating Internal Combustion Engine SME 2423-2006/2007-2