Measured effect of airflow and refrigerant charge on the seasonal performance of an air-source heat pump using R-410A

被引：58

作者：

Palmiter, Larry ^{[2
]}

Kim, Jun-Hyeung ^{[1
]}

Larson, Ben ^{[2
]}

Francisco, Paul W. ^{[3
]}

Groll, Eckhard A. ^{[4
]}

Braun, James E. ^{[4
]}

机构：

[1] Univ Alabama, Sch Mech Engn, Tuscaloosa, AL 35487 USA

[2] Ecotope Inc, Seattle, WA 98105 USA

[3] Univ Illinois, Bldg Res Council, Urbana, IL 61280 USA

[4] Purdue Univ, Sch Mech Engn, W Lafayette, IN 47907 USA

来源：

ENERGY AND BUILDINGS | 2011年 / 43卷 / 07期

关键词：

Seasonal performance; Heat pumps; Refrigerant charge; Airflow;

D O I：

10.1016/j.enbuild.2011.03.026

中图分类号：

TU [建筑科学];

学科分类号：

0813 ;

摘要：

The objective of this study was to measure the effects of improper airflow and refrigerant charge on the seasonal performance of a typical 10.6 kW, R-410A residential heat pump with a thermostatic expansion valve. Heating and cooling tests were performed in combinations of three refrigerant charges of 75%, 100%, and 125% of nominal value and two airflows of 75% and 100% of rated airflow. In addition, cyclic tests were performed to estimate the heating and cooling seasonal coefficient of performance (COP) at six climate zones specified by Air-Conditioning. Heating, and Refrigeration Institute (AHRI) Standard 210/240-2008. Results showed that, in each climate zone, increases in refrigerant charge at the rated airflow could improve the unit's heating seasonal COP by as much as 5%. However, combined decreases in airflow and refrigerant charge could penalize the unit's heating seasonal COP by as much as 10%. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：1802 / 1810

页数：9

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