A comprehensive study of the second law of thermodynamics for a rotary regenerative heat exchanger with two types of simple and anodized aluminum sheets: an experimental study

被引：13
作者：
Akbari, Amirhossein [1 ]
Kouravand, Shahriar [1 ]
Pourahmad, Saman [2 ]
机构：
[1] Univ Tehran, Fac Abureyhan, Dept Biosyst Mech Engn, Tehran, Iran
[2] Urmia Univ, Dept Mech Engn, Fac Engn, Orumiyeh, Iran
来源：
ENERGY SOURCES PART A-RECOVERY UTILIZATION AND ENVIRONMENTAL EFFECTS | 2024年 / 46卷 / 01期
关键词：
Rotary regenerative heat exchanger; anodized aluminum sheets; second law of thermodynamics; exhaust gas recirculation; EXERGY LOSS; AIR PREHEATER; WAVY STRIP; TUBE; PERFORMANCE; RECOVERY; GAS; OPTIMIZATION; SIMULATION; INJECTION;
D O I：
10.1080/15567036.2020.1771479
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
Rotary regenerative heat exchangers are commonly used in the industry. However, the corrosion of sheets that are in contact with the operating fluid is considered as the disadvantage of these heat exchangers. This causes a reduction in the lifespan of this kind of heat exchanger. The object of the present study is to evaluate and compare the exergy loss and the second law efficiency of a rotary regenerative heat exchanger, which is made from two types of simple aluminum sheets and anodized aluminum sheets are. Anodized sheets are used to enhance the corrosion resistance of the regenerative heat exchanger. The results indicated that the lower exergy loss and the dimensionless exergy loss with anodized sheets about 14-24% and 15-20% compared to the heat exchanger with simple sheets, respectively. Besides, the effects of rotational speed of the matrix, inlet temperature of hot flow, and the flow rates of hot and cold flows on the rotary regenerative heat exchanger are evaluated. Finally, some empirical correlations have been developed based on the obtained data and curve fitting process.
引用
收藏
页码：8872 / 8887
页数：16
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