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The Use of Availability and Energy Balances in Diesel Engines
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English
Abstract
In this study the application of an availability balance and two alternative forms of energy balance to two experimental single-cylinder engines, a water-cooled and an uncooled diesel, are described. Both the first-law efficiency and the second-law efficiency of the uncooled engine were significantly higher than those of the water-cooled engine for equal BMEP levels. The loss of availability due to irreversibilities accounted for as much as 50% of the input fuel availability at light loads. Based on an energy balance, the heat loss from the uncooled engine was found to range from 50 to 70% of the corresponding heat loss from the water-cooled engine.
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Citation
Alkidas, A., "The Use of Availability and Energy Balances in Diesel Engines," SAE Technical Paper 890822, 1989, https://doi.org/10.4271/890822.Also In
References
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