DEVELOPMENT AND VALIDATION OF A CO2 GAS COOLER MOVING-BOUNDARY MODEL

被引：2

作者：

Bahman, Ammar ^{[1
]}

Ziviani, Davide ^{[1
]}

Groll, Eckhard A. ^{[1
]}

机构：

[1] Purdue Univ, Sch Mech Engn, Ray W Herrick Labs, 177 S Russell St, W Lafayette, IN 47907 USA

来源：

13TH IIR GUSTAV LORENTZEN CONFERENCE ON NATURAL REFRIGERANTS: NATURAL REFRIGERANT SOLUTIONS FOR WARM CLIMATE COUNTRIES | 2018年

关键词：

CO2; Gas cooler; Moving-boundary method; Modeling; Validation;

D O I：

10.18462/iir.gl.2018.1166

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

This paper presents the development of a CO2 gas cooler model using the moving-boundary method. The model aims to separate the gas cooler into two regions: supercritical gas and supercritical liquid by means of the CoolProp thermophysical property library (Bell et al., 2014). The model uses the latest correlations for refrigerant and air-side heat transfer coefficients and pressure drops. The experimental results from Ge and Cropper (2009) are used for model validation. A total of at 36 operating conditions have been reported. The model predicted the gas cooler heating capacity within an MAE of +/- 4.7% and refrigerant side outlet temperature within +/- 3 K. The present moving-boundary model also showed an improved agreement compared to the segment-by-segment model proposed by Ge and Cropper (2009).

引用

页码：353 / 360

页数：8

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