Energy And Exergy Assessment of North Refineries Company (NRC) Steam Cycle Based on Air Mass Flowrate of Main Condenser
The present work depends on the previous energy and exergy analysis study for a steam cycle of North Refineries Company (NRC)/Baiji, Iraq, which was conducted at real and rated operating loads. After the results of that study are presented, this current study is conducted and aimed to produce...
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| Autores principales: | , , |
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| Formato: | article |
| Lenguaje: | EN |
| Publicado: |
Tikrit University
2021
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| Materias: | |
| Acceso en línea: | http://dx.doi.org/10.25130/tjes.28.3.05 https://doaj.org/article/8b4a6813c75a4abdb1c528d730e7fd50 |
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| Sumario: | The present work depends on the previous energy and exergy analysis
study for a steam cycle of North Refineries Company (NRC)/Baiji, Iraq,
which was conducted at real and rated operating loads. After the results
of that study are presented, this current study is conducted and aimed to
produce the engineering solutions for improving the cycle performance
through studying the operational choices that are actually available in the
plant as investigating the effect of increasing the air mass flow rate in the
main condenser of the cycle. The calculations were done by using the
MATLAB program. The results showed that increasing the air mass flow
rate or increasing the number of fans in service from 8 to 14 fans will
reduce the energy losses in the main condenser and in the cycle. The
energy loss reduction can be enhanced in the improvement of the energy
efficiency by raising it from 30.11 % to 48.61 % at real load and from 33.49
% to 48.93 % at rated load. On the other hand, the exergy analysis showed
that the exergy destructions for the main condenser and for the cycle
would decrease if the number of fans increased. This decreasing of exergy
destruction in the main condenser will raise the exergy efficiency from
21.95 to 27.06 % at real load and from 21.18 % to 25.45 % at rated load. |
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