expander under the influence of supply pressure and pressure ratio over the expander. Three tests were performed with expander … results show a maximum expander isentropic efficiency of 72.4% and a relative cycle efficiency of 10.5% at an evaporation … temperature of 101 °C and condensation temperature of 45 °C. At a given pressure ratio over the expander, a higher supply pressure …

the air expander inlet range from 40 to 60 bar. Since such values are comparable with those featuring industrial steam … industrial steam turbines manufacturers to assemble the air expander. On the basis of available information, a possible …

the air expander inlet range from 40 to 60 bar. Since such values are comparable with those featuring industrial steam … industrial steam turbines manufacturers to assemble the air expander. On the basis of available information, a possible …

problems are connected with the selection of a suitable expander. Volumetric machines, such as scroll and screw expanders, are … of a micro-ORC rotary vane expander under variable heat source temperature conditions. The main objective of this … research was therefore a comprehensive analysis of relation between the vane expander output power and the heat source …

-coupled scroll expander, plate type heat exchangers and plunger type working fluid feed pump. The heat source for the ORC system can … be solar energy. A series of laboratory tests were conducted to confirm the cycle efficiency and expander power output of … parameters, such as the evaporating and condensing pressures, degree of superheating, dead state temperature, expander inlet …

condensing pressure to high evaporating pressure, and the expander utilizes the pressure difference to generate work. A portion … of the expander output power is used to offset the consumed pumping work, and the rest of the expander power is exactly … of the circulation pump reported in previous papers, the characteristics of the expander power used for offsetting the …

This study investigated the effect of the built-in volume ratio of an expander on the performance of a dual … positive displacement expander to operate in both under- and over-expansion states. Therefore, analysis of the off …-design performance of the expander is very important. Furthermore, the volume and weight of the expander must be considered in its …

This paper investigates a slug-flow expander (SFE) for conversion of high-pressure gas/vapor into kinetic energy of … flow rate. A total of 13 expander configurations are investigated and geometries with the shortest cavity length and the … multiphase nature of the slug-flow expander, application to systems involving expansion of wetting fluids (water as part of a …

conditions was obtained, and the running performances of the screw expander were introduced. Based on thermodynamic models and …