Volume 15, Issue 5 (2015)                   Modares Mechanical Engineering 2015, 15(5): 205-216 | Back to browse issues page

XML Persian Abstract Print


Download citation:
BibTeX | RIS | EndNote | Medlars | ProCite | Reference Manager | RefWorks
Send citation to:

Hanifi Miangafsheh K, Javaherdeh K, Yari M. Exergy and Exergoeconomic analysis and optimization of cogeneration cycle under solar radiation dynamic model by using Genetic Algorithm. Modares Mechanical Engineering. 2015; 15 (5) :205-216
URL: http://journals.modares.ac.ir/article-15-3780-en.html
1- Guilan University
2- Tabriz University
Abstract:   (3079 Views)
The performance of a cogeneration cycle with various working fluids is investigated and optimized with an economic approach. Exergy and exergoeconomic models are developed to investigate the thermodynamic performance of the cycle, and to assess the cost of products. In this study, the dynamic model would be registered to search the system behavior during a day. In this study, hydrogen production rate optimal design (HPROD) refrigeration power optimal design (RPOD) and cost optimal design (COD) are considered for analysis and optimization. According to recent parametric studies, boiler, turbine and condensation temperature and turbine inlet pressure affect the unit cost of products significantly. The results show the carbon dioxide and n-octane has a better operation to produce of hydrogen and refrigeration power among other working fluids, respectively. It is observed that, in carbon dioxide cycle, the SUCP is decreased by 8.5% when hydrogen production rate is decreased from 1.811 lit/s to 1.757 lit/s, therefore, in n-octane cycle, SUCP is decreased by 47.4% when refrigeration power is decreased from 9.599 KW to 6.622 KW. The evaluation of exergy destruction demonstrates in which the condenser has the highest exergy destruction, therefore, its rate in COD case is the lowest among the three other states. The results indicate, in carbon dioxide and n-octane cycles, the total exergy destruction and the investment cost rates in the RPOD case is higher than any other cases.
Full-Text [PDF 499 kb]   (3267 Downloads)    
Article Type: Research Article | Subject: Thermodynamics
Received: 2014/12/28 | Accepted: 2015/03/7 | Published: 2015/04/4

Add your comments about this article : Your username or Email:
CAPTCHA