Thermo-economic analysis and sizing of the components of an ejector expansion refrigeration system
| Autor: | Luiz Machado, Ricardo Nicolau Nassar Koury, Ali Khosravi |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Exergy
business.industry 020209 energy Mechanical Engineering Heat pump and refrigeration cycle Refrigeration Thermodynamics 02 engineering and technology Building and Construction Injector law.invention 020401 chemical engineering law Heat exchanger 0202 electrical engineering electronic engineering information engineering Environmental science 0204 chemical engineering Cost of electricity by source Process engineering business Condenser (heat transfer) Evaporator |
| Zdroj: | International Journal of Refrigeration. 86:463-479 |
| ISSN: | 0140-7007 |
| DOI: | 10.1016/j.ijrefrig.2017.11.007 |
| Popis: | An ejector expansion refrigeration system (EERS) as an alternative system was proposed to supply the cold water for unit 132 of the second refinery of South Pars, Iran. A thermodynamic model based on energy and exergy analysis and an economic model according to the Total Revenue Requirement (TRR) method have been presented. Sizing of the main components of the system such as evaporator, condenser and ejector device were determined. The effect of the evaporation and condensing temperatures on the cost of the system were analyzed and the optimum values of the condensing and evaporation temperatures were obtained. The optimum pressure drop in suction nozzle was determined. The economic model takes into account the cost of the components, including amortization and maintenance, and the cost of electricity consumption. The results show, the amount of the fuel consumption and the total cost of the EERS are respectively 22% and 15.2% more efficient compared with a basic refrigeration system with an additional heat exchanger (HXRS). |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect