Effectiveness - NTU Data and Analysis for Air Conditioning and Refrigeration Air Coils

被引：5

作者：

Navarro, Helio Aparecido ^{[1
]}

Cabezas-Gomez, Luben ^{[2
]}

Bastos Zoghbi Filho, Joao R. ^{[1
]}

Ribatski, Gherhardt ^{[1
]}

Maria Saiz-Jabardo, Jose ^{[3
]}

机构：

[1] Univ Sao Paulo, Escola Engn Sao Carlos, Dept Engn Mecan, BR-13566590 Sao Carlos, SP, Brazil

[2] Pontificia Univ Catolica Minas Gerais, Dept Engn Mecan, BR-30535901 Belo Horizonte, MG, Brazil

[3] Univ A Coruna, Escuela Politecn Super, Ferrol 15403, Coruna, Spain

来源：

JOURNAL OF THE BRAZILIAN SOCIETY OF MECHANICAL SCIENCES AND ENGINEERING | 2010年 / 32卷 / 03期

基金：

巴西圣保罗研究基金会;

关键词：

effectiveness; NTU; air coil; TUBE HEAT-EXCHANGERS; PERFORMANCE; DESIGN; MODEL;

D O I：

10.1590/S1678-58782010000300004

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

A simulation program based on a control volume analysis has been used in the evaluation of the (epsilon, NTU) relationship for coils of complex geometry and flow arrangement. The simulation program has been evaluated through simple geometry and flow arrangement coils. The program results compare very well with correlations for simple cross flow coils, and a number of rows up to four. It has also been determined that closed form correlations developed for coils of an infinite number of tube rows are inadequate for those with number of rows in the range between 5 and 10. In addition, it has been found that closed form (epsilon, NTU) correlations for cross flow coils with the same tube arrangement and number of rows might lead to inaccuracies higher than 10% in the evaluation of the effectiveness of coils of complex flow arrangement.

引用

页码：218 / 226

页数：9

共 20 条

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