Articles Posted in the " Internal and External Engines " Category

  • INTERNAL COMBUSTION ENGINES QUESTIONS WITH ANSWERS

    INTERNAL COMBUSTION ENGINES QUESTIONS WITH ANSWERS

    INTERNAL COMBUSTION ENGINES Fig. Internal Combustion Petrol Engine QUESTIONS WITH ANSWERS Define supercharging in IC Engines. A supercharger is a compressor which compresses air 6 to 8 psi above atmospheric pressure. This gives more oxygen for better burning of fuel. Thus engine produces more power.  Supercharger gets power from the IC engine crankshaft through a […]


  • DIESEL CYCLE MULTIPLE CHOICE QUESTIONS (MCQ) WITH ANSWERS

    DIESEL CYCLE MULTIPLE CHOICE QUESTIONS (MCQ) WITH ANSWERS

      DIESEL CYCLE MULTIPLE CHOICE QUESTIONS (MCQ) WITH ANSWERS    It consists of two isentropic processes, one isobaric and one at constant volume processes. The sequence of processes is as follows: (i) Compression isentropic. (ii) Supply of heat at constant pressure. (iii) Expansion is isentropic. (iv)  Rejection of heat at constant volume.  It uses diesel […]


  • COMBUSTION IN INTERNAL COMBUSTION ENGINES CLASS NOTES

    COMBUSTION IN INTERNAL COMBUSTION ENGINES CLASS NOTES

    COMBUSTION IN INTERNAL COMBUSTION ENGINES CLASS NOTES Fig. Internal Combustion Petrol Engine 1. Combustion is rapid burning of the air fuel mixture  to liberate heat energy. 2. Process of combustion takes place differently in spark ignition and diesel engines. In spark ignition engines, combustion takes place by igniting the compressed air fuel mixture by a […]


  • EMISSONS INTERNAL COMBUSTION ENGINES CLASS NOTES

    EMISSONS INTERNAL COMBUSTION ENGINES CLASS NOTES

    EMISSONS INTERNAL COMBUSTION ENGINES CLASS NOTES Emissions from internal combustion engines are harmful. Reduce these to a minimum. Their total elimination is not possible. DEFINITION Emission of an IC engine is hot mixture of gases coming out of the engine and going to the atmosphere. CONSTITUENTS These emissions may contain (i) Carbon dioxide (Co2) (ii) […]


  • TESTING OF INTERNAL COMBUSTION ENGINES CLASS NOTES

    TESTING OF INTERNAL COMBUSTION ENGINES CLASS NOTES

      TESTING OF INTERNAL COMBUSTION ENGINES CLASS NOTES    The testing is to verify the designed data. It gives the information for the developed engine (i) To get and know information which is not possible by calculations (ii) To confirm the validity of the data and assumptions used in design (iii) To satisfy the customer […]


  • NUMERICAL PROBLEMS INTERNAL COMBUSTION ENGINE

    NUMERICAL PROBLEMS INTERNAL COMBUSTION ENGINE

      NUMERICAL PROBLEMS INTERNAL COMBUSTION ENGINE Solution of numerical problems help to increase clarity. It gives the real  inside understanding. This is helpful in the design and construction of Internal Combustion Engines. Solution of two numerical problems on internal combustion engines is given below. One is on two stroke while the other is on four […]


  • AIR STANDARD CYCLES-INTRODUCTION & OTTO CYCLE CLASS NOTES

    AIR STANDARD CYCLES-INTRODUCTION & OTTO CYCLE CLASS NOTES

    AIR STANDARD CYCLES- INTRODUCTION & OTTO CYCLE CLASS NOTES Gas power cycles produce power. Analysis is complex and confusing.  Use assumptions to make the analysis simple. These assumptions help in better understanding. More assumptions cause more deviations from actuality. Otto cycle is a gas power cycle. Petrol engines use Otto cycle. It has two isentropic […]


  • HISTORY & BASICS OF INTERNAL COMBUSTION ENGINE

    HISTORY & BASICS OF INTERNAL COMBUSTION ENGINE

      HISTORY & BASICS OF INTERNAL COMBUSTION ENGINE ICE concept started 150 years earlier.  Engine creator—Etienne Lenoir in 1859. ICE Modern engine creator Siegfried Marcus in 1864, Power producing capacity 5 W to 100000 kW. It is a heat engine. Input is heat. Motion / work / electricity is the output. In this, combustion of […]


  • *INTERNAL COMBUSTION ENGINE-TROUBLESHOOTING

    *INTERNAL COMBUSTION ENGINE-TROUBLESHOOTING

    INTERNAL COMBUSTION ENGINE TROUBLE SHOOTING The internal combustion (I C) engines are common in every vehicle. There are numerous troubles associated with it. Many troubles  Overcome many troubles by learning properly the starting and operating the engine. It is prescribed in the manufacturer catalog. Experience is the best teacher to sense the trouble. Take appropriate action […]


  • PERFORMANCE PARAMETERS I C ENGINES CLASS NOTES

    PERFORMANCE PARAMETERS I C ENGINES CLASS NOTES

     PERFORMANCE PARAMETERS I C ENGINES CLASS NOTES   Need for IC engines in automobiles and power generation is increasing day by day. Therefore design an efficient and economical engines. Judge the performance of the engine from the various parameters listed below: Indicated Horse Power, IHP Torque Brake Horse Power Mechanical Efficiency Frictional Horse Power Fuel […]