کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5012362 | 1462811 | 2017 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Comprehensive experimental study on a transcritical CO2 ejector-expansion refrigeration system
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی انرژی
انرژی (عمومی)
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
A comprehensive experimental study on the ejector and cooling performances of a transcritical CO2 ejector-expansion system is presented. The ejector performance of the entrainment ratio, pressure lift ratio, and efficiency were investigated under various primary flow pressure, secondary flow pressure, and back pressure conditions. A new coefficient of mass balance, β, was introduced based on the liquid mass balance in and/or out of the vapor-liquid separator, which was able to estimate the deviation between current operating state and a steady state. The experiment results show that the coefficient of performance (COP) ratio of the ejector-expansion refrigeration system to the basic system decreases from 18.9% to â11% with the coefficient of mass balance increasing from â0.1 to 0.1. Both the entrainment ratio and COP decrease with an increase in the coefficient of mass balance.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Energy Conversion and Management - Volume 151, 1 November 2017, Pages 98-106
Journal: Energy Conversion and Management - Volume 151, 1 November 2017, Pages 98-106
نویسندگان
Yinhai Zhu, Conghui Li, Fuzhen Zhang, Pei-Xue Jiang,