In this work, a novel dual-nozzle ejector enhanced triple-evaporator refrigeration cycle (DETRC) without separator is proposed to improve the performance of the conventional ejector one (CETRC). The performance of DETRC is analyzed and compared with CETRC in term of energy coefficient of performance (COPen). Under given operating conditions, the COPen improvement of the no...

In the refining and petrochemical industrial sector, large amounts of energy are used, so using concept exergy allows a rational use this resource. different exergoeconomics studies applied in plants, parameters interest have been determined to evaluate thermal efficiency, potential for process improvement, irreversibilities produced by interaction between components system operation each one, ...

in this study, the performance of an irreversible regenerative brayton cycle is sought through power maximizations using finite-time thermodynamic concept in finite-size components. optimizations are performed using a genetic algorithm. in order to take into account the finite-time and finite-size concepts in the current problem, a dimensionless mass-flow rate parameter is used to deploy time v...

Integrated solar-assisted gasification cycles (ISGC) have emerged as a more flexible and environmentally friendly solution for producing power, steam, other high-valued by-products from low-cost opportunity fuels. In this light, paper investigates new ISGC system converting heavy refineries fuels into power steam utilities while enhancing energy efficiency economic environmental performance ind...