Air Standard Cycles
Internal combustion engines, in which the combustion of fuel occurs in the engine cylinder itself, are non-cyclic heat engines. The temperature due to evolution of heat, because of the combustion…
Carburetor of an IC Engine
The carburetor is a device for atomising and vaporising the fuel and mixing it with the air in the varying proportions to suit the changing operating conditions of the engine. The process…
Governing of IC Engines
The process of providing any arrangement, which will keep the engine speed constant (according to the changing load conditions) is known as governing of I.C. engines. Though there are many…
Air Standard Otto Cycle
Otto Cycle (1876) (Used S. I. Engines): Fig: Engine and Indicator diagram Processes: 0-1 = Suction: The inlet valve is open, the piston moves to the right, admitting fuel-air mixture…
Internal Combustion Engines- Basic Differences
Difference between SI and CI Engines:- The following are the main differences between SI and CI Engines: Spark Ignition (SI) Engine Compression Ignition (CI) Engine Spark plug required No spark…
I.C Engines Important definitions and formulas
Top Dead Centre (T.D.C):- When the piston is at its top most position, i.e. the piston is closet to cylinder head, it is called top dead centre. Bop Dead Centre (B.D.C):- When…
Difference between SI and CI engines
Spark Ignition Engines (S.I. Engine) It works on Otto cycle. In Otto cycle, the energy supply and rejection occur at constant volume process and the compression and expansion occur isentropically. The…
Comparison of Petrol and Diesel Engines
Petrol vs Diesel engines: A comparison - Basic difference between a petrol engine and a diesel engine based on working, pressures, combustion, compression ratios, speed, efficiency, maintenance, and running costs.…
Brake power of IC Engine
The brake power (briefly written as B.P.) of an IC Engine is the power available at the crankshaft. The brake power of an I.C. engine is, usually, measured by means…
Efficiency of an IC Engine
The efficiency of an IC engine (Internal Combustion Engine) is defined as the ratio of workdone to the energy supplied to an engine. The following efficiencies of an 1.C. engine are important: (a) Mechanical…
