About This Club
Internal Combustion Engines
Category
Engineering Subjects
Description
Internal Combustion Engines
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What is meant by TDC and BDC?
DrD replied to admin's topic in Internal Combustion Engines's Conceptual Questions
TDC is Top Dead Center BDC is Bottom Dead Center For an engine with no cylinder center line offset, the cylinder center line passes through the crank axis of rotation. When the piston is farthest away from the crank axis, this is the TDC condition. When then piston is closest to the crank axis, this is the BDC condition. The term "dead center" refers to the fact that pressure acting on the piston in a dead center position produces no torque on the crank and hence no ability to move a load. The term derives from the era of steam power when single cylinder engines were very common. DrD -
Explain briefly (i) mean effective pressure (ii) specific output (ii) specific fuel consumption (iv) fuel-air ratio (0) heating value of the fuel You can write the answer and upload relevant images to justify the answer (if required) Let's together discuss and contribute in making the best answer
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Define the following efficiencies : (i) indicated thermal efficiency (ii) brake thermal efficiency (iii) mechanical efficiency (iv) relative efficiency (v) volumetric efficiency You can write the answer and upload relevant images to justify the answer (if required) Let's together discuss and contribute in making the best answer
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Compare SI and CI engines with respect to (i) basic cycle (ii) fuel used (iii) introduction of fuel (V) compression ratio (vi) speed (vii) efficiency (iv) ignition (viii) weight You can write the answer and upload relevant images to justify the answer (if required) Let's together discuss and contribute in making the best answer
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Draw the ideal and actual indicator diagrams of a two-stroke SI engine. How are they different from that of a four-stroke cycle engine? You can write the answer and upload relevant images to justify the answer (if required) Let's together discuss and contribute in making the best answer
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What is the main reason for the development of two-stroke engines and what are the two main types of two-stroke engines? You can write the answer and upload relevant images to justify the answer (if required) Let's together discuss and contribute in making the best answer
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Classify the internal combustion engine with respect to (i) cycle of operation (ii) cylinder arrangements (iii) method of charging the cylinder (iv) type of ignition (v) type of fuels used (vi) type of cooling You can write the answer and upload relevant images to justify the answer (if required) Let's together discuss and contribute in making the best answer
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Define the following: (i) bore (ii) stroke (iii) displacement volume (iv) clearance volume (V) compression ratio (vi) cubic capacity Mention the units in which they are normally measured. You can write the answer and upload relevant images to justify the answer (if required) Let's together discuss and contribute in making the best answer