关键词:

喷射器, 火用效率;引射系数

Abstract:

The principle of an ejector with peripheral steam entrance was studied in detail.The exergy analysis model of ejector was based on the available energy, from which the exergy efficiency of ejector with different structural and operating parameters was calculated.The factors influencing the exergy efficiency were investigated.The results indicate that the exergy efficiency of ejector increases with inlet water temperature, ejecting coefficient and pressure ratio.There exits a minimum exergy efficiency while steam pressure changes.The relationship between exergy efficiency and different parameters obtained by calculation was in good agreement with experimental results.This study provides a theoretical basis for the design and application of the ejector with peripheral steam entrance.

Key words:

喷射器, 火用效率;引射系数