The exhaust gases of gas turbine power plant carry a significant amount of thermal energy that is usually expelled to the atmosphere this causes a reduction in net work and efficiency of gas turbine. On the other hand, the generated power and efficiency of gas turbine plants depend largely on the temperature of the inlet air, So that they both increase as the inlet air temperature decreases. Th...

The stable operation of a system is restricted by the intrinsic characteristics, namely harmonious matching among and between structure parameters and operation parameters. In this paper, we put forward an analysis method of the dynamic stability of the refrigeration system based on the First Approximation Theory of Lyapunov Stability Theorem and the evaluation of stability margin. It is carrie...

The adverse effects of global warming and climate change require critical measures for marine refrigeration technology because its impact on greenhouse gas emissions. A novel transcritical CO2 two-stage compression/ejector cycle shipboard cold chamber is proposed in this research. comparative analysis was conducted between the basic compression equipped with a two-phase ejector considering coef...

Ejector-based refrigeration systems can make direct use of many forms thermal energy, such as solar thermal, waste heat, biogas, or natural gas. The present paper describes the estimation coefficient performance (COP) a binary fluid ejector ground source heat pump (BFE GSHP) cooling system. A method for selection was defined based on favorable thermo-physical properties working fluids. short li...

Three combined power and refrigeration system are introduced to compare and analyze for a defined demand and same fuel consumption based on thermodynamic parameters in a 24 hours period. Gas turbine and/or steam turbine are used for power generation and also ejector refrigeration cycle is used to produce cooling. These three systems are named as GER, SER and GSER. The results of three systems a...

More and more attention has been paid to ejector refrigeration system using low grade thermal for cooling. Ejector is the most important part of this system, its operating condition structure are two parameters affecting performance, especially NXP value a hot research topic at present. The optimal was found by many experimental or numerical studies, but theory about how design an optimum nozzl...