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kannans
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why the mechanical efficiency and brake thermal efficiency curve increases as load increases and reaches a maximum value and then again decreases( in contand speed test)
Kozy said:Because with more load at a constant speed you have a wider throttle opening, an engine is at best efficiency when completely un-throttled.
A CI engine performance test is a type of test that measures the performance of a Compression Ignition (CI) engine, also known as a diesel engine. This test is used to evaluate the engine's power, fuel efficiency, and emissions.
A CI engine performance test is important because it provides valuable information about the engine's performance, which can be used to improve its efficiency and reduce emissions. It also helps to identify any potential issues or problems with the engine.
The results of a CI engine performance test can be affected by several factors, including the engine's design, fuel quality, ambient temperature, and load conditions. Other factors such as maintenance and tuning of the engine can also impact the results.
A CI engine performance test is typically conducted on a dynamometer, which is a device that measures and records the engine's power output. The test involves running the engine at different speeds and loads while collecting data on fuel consumption, emissions, and other performance parameters.
Some common performance parameters measured in a CI engine performance test include power output, torque, specific fuel consumption, air-fuel ratio, exhaust gas temperature, and emissions of pollutants such as nitrogen oxides (NOx) and particulate matter (PM).