Transcription of 9. DG SET SYSTEM - Bureau of Energy Efficiency
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9. DG SET SYSTEM - Bureau of Energy Efficiency
9. DG SET SYSTEM165 Bureau of Energy EfficiencySyllabusDiesel Generating SYSTEM :Factors affecting selection , Energy performance assessment ofdiesel conservation IntroductionDiesel engine is the prime mover, which drives an alternator to produce electrical Energy . Inthe diesel engine, air is drawn into the cylinder and is compressed to a high ratio (14:1 to25:1). During this compression, the air is heated to a temperature of 700 900 C. A meteredquantity of diesel fuel is then injected into the cylinder, which ignites spontaneously becauseof the high temperature. Hence, the diesel engine is also known as compression ignition (CI)engine. DG set can be classified according to cycle type as: two stroke and four stroke. However,the bulk of IC engines use the four stroke cycle.
It is necessary to select the components with highest efficiency and operate them at their optimum efficiency levels to conserve energy in this system. Fig 9.2 DG Set System Selection Considerations To make a decision on the type of engine, which is most suitable for a specific application, several factors need to be considered.
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