In the present study, exergy and pinch analyses have been performed on ammonia-water and Rankine bottoming cycles for gas diesel engines. Gas diesel engines produce four waste heat streams at different temperature levels that can be used as heat sources by a bottoming cycle. The ammonia-water cycle has the potential to use these heat sources more efficiently than a Rankine cycle. The second law efficiency of the best ammonia-water cycle configuration is 43-48 % higher than the efficiency of a single-pressure Rankine cycle and 20-25 % higher than the efficiency of a dual-pressure Rankine cycle.
Primary Language | English |
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Journal Section | Regular Original Research Article |
Authors | |
Publication Date | June 1, 2000 |
Published in Issue | Year 2000 Volume: 3 Issue: 2 |