Effect of heat exchanger design on seasonal performance of heat pump systems

被引：29

作者：

Ishaque, Shehryar ^{[1
,2
]}

Siddiqui, Md Irfanul Haque ^{[3
]}

Kim, Man-Hoe ^{[1
,2
]}

机构：

[1] Kyungpook Natl Univ, Sch Mech Engn, Daegu 41566, South Korea

[2] Kyungpook Natl Univ, IEDT, Daegu 41566, South Korea

[3] King Saud Univ, Dept Mech Engn, Riyadh, Saudi Arabia

来源：

INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER | 2020年 / 151卷

关键词：

Heat exchanger design; CFD; Face velocity profile; Heat pump; Seasonal performance; FLOW MALDISTRIBUTION; AIR-FLOW; HYDRAULIC PERFORMANCE; TUBE; IMPROVEMENT; OPTIMIZATION; ARRANGEMENT; CONDENSERS; MODEL; ALGORITHM;

D O I：

10.1016/j.ijheatmasstransfer.2020.119404

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

This paper presents the effect of heat exchanger design on heat pump performance based on partial load operating conditions. 3-D numerical analysis was conducted to calculate face velocity profiles for each outdoor heat exchanger design (rectangular, cylindrical, and trapezoidal) in 10 different operating conditions. Heat exchanger circuits were modified considering heat exchanger face velocity distributions, and seasonal heat pump performances were calculated with modified heat exchanger design. The maximum seasonal performance enhancement of 7.07% was achieved with a modified heat exchanger design. Air-side flow maldistribution could affect significantly refrigerant path design and heat exchanger performance as well as system performance. The analysis results also revealed that smaller refrigerant circuits at the upper part of the heat exchanger interacting with higher air velocity could further enhance the annual system performance. (C) 2020 Elsevier Ltd. All rights reserved.

引用

页数：12

共 45 条

[1] Thermo-hydraulic analysis of multi-row cross-flow heat exchangers [J].

An, Cheen Su ;

Kim, Man-Hoe .

INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER, 2018, 120 :534-539

[2] Analysis of heat-transfer performance of cross-flow fin-tube heat exchangers under dry and wet conditions [J].

An, Cheen Su ;

Choi, Do Hyung .

INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER, 2012, 55 (5-6) :1496-1504

[3]

[Anonymous], 2018, EN14825

[4]

ANSYS, 2015, FLUENT US GUID REL 1

[5] Mitigation of air flow maldistribution in evaporators [J].

Bach, Christian K. ;

Groll, Eckhard A. ;

Braun, James E. ;

Horton, W. Travis .

APPLIED THERMAL ENGINEERING, 2014, 73 (01) :879-887

[6] Thermal and hydraulic performance of finned-tube heat exchangers under different flow ranges: A review on modeling and experiment [J].

Bhuiyan, Arafat A. ;

Islam, A. K. M. Sadrul .

INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER, 2016, 101 :38-59

[7] Thermal analysis of plate condensers in presence of flow maldistribution [J].

Bobbili, Prabhakara Rao ;

Sunden, Bengt ;

Das, Sarit Kumar .

INTERNATIONAL JOURNAL OF HEAT AND MASS TRANSFER, 2006, 49 (25-26) :4966-4977

[8] An experimental investigation of the port flow maldistribution in small and large plate package heat exchangers [J].

Bobbili, Prabhakara Rao ;

Sunden, Bengt ;

Das, Sarit K. .

APPLIED THERMAL ENGINEERING, 2006, 26 (16) :1919-1926

[9] The effect of wind on the optimal design and performance of a modular air-cooled condenser for a concentrated solar power plant [J].

Butler, C. ;

Grimes, R. .

ENERGY, 2014, 68 :886-895

[10]

Choi J.M., 2003, INT C REFR, P1

← 1 2 3 4 5 →