Review of Ejector Design Parameters and Geometry for Refrigeration and Air Conditioning Applications

Product Highlight

The Thermodynamic Principles of LPA

Most current refrigeration and air conditioning systems waste 20% to 40% of

Model LPA® 860-SS-075

860-SS-075-B | 4 to 30 GPM | Max Head 50 feet PS

Review of Ejector Design Parameters and Geometry for Refrigeration and Air Conditioning Applications

review_of_ejector_design_parameters_geometry_refrigeration_air-conditioning_applications

[EXTERNAL] Abstract:

In this paper, a thermodynamic model of the ejector-expansion transcritical CO2 refrigeration cycle is developed.The basic transcritical CO2 systems exhibit low energy efficiency due to their large throttling loss. Replacing the throttle valve with an ejector is an effective measure for recovering some of the energy lost in the expansion process.  The effect of the suction nozzle pressure drop (SNPD) on the cycle performance is discussed. The results indicate that the SNPD has little impact on entrainment ratio. There exists an optimum SNPD which gives a maximum recovered pressure and COP under a specified condition. The value of the optimum SNPD mainly depends on the efficiencies of the motive nozzle and the suction nozzle, but it is essentially independent of evaporating temperature and gas cooler outlet temperature.

Courtesy of B.ELHUB,MOHAMED AZLY ABDUL AZIZ, MOHD KHAIRUL ANUAR BIN SHRIF SOHIF MAT, Solar energy research institute (SERI) UniversitiKebangsaan Malaysia UKM 43600 UKM, Bangi Selangor, MALAYSIA

 Download the full Paper here>> review_of_ejector_design_parameters_geometry_refrigeration_air_conditioning_applications

Leave a Reply

 


NEED HELP? Click here for online help