An automatic refrigerant circuit generation method for finned-tube heat exchangers

2018 ◽  
Vol 96 (12) ◽  
pp. 2661-2672 ◽  
Author(s):  
Jiwen Cen ◽  
Jianyao Hu ◽  
Fangming Jiang
Keyword(s):  
Heat Exchangers ◽  
Finned Tube ◽  
Refrigerant Circuit

Contemporary Developments in the Thermal Design of Finned-Tube Heat Exchangers

1998 ◽  
Vol 5 (2) ◽  
pp. 71-90 ◽  
Author(s):  
Charles H. Bemisderfer
Keyword(s):  
Heat Exchangers ◽  
Finned Tube ◽  
Thermal Design

REVIEW OF MODELS AND MECHANISMS FOR FINNED-TUBE HEAT EXCHANGERS UNDER DEHUMIFYING CONDITIONS

2019 ◽  
Author(s):  
Matheus Fraga de Vasconcelos ◽  
Fabio Toshio Kanizawa
Keyword(s):  
Heat Exchangers ◽  
Finned Tube

AIR-SIDE PERFORMANCE OF FINNED TUBE HEAT EXCHANGERS UNDER DEHUMIDIFYING CONDITIONS

2019 ◽  
Author(s):  
Jacqueline Copetti ◽  
Mario Henrique Macagnan ◽  
Anselmo Goulart Gonçalves ◽  
Desirê Lara Mehringer Kreische
Keyword(s):  
Heat Exchangers ◽  
Finned Tube

Thermal and Hydraulic Characteristics of Multiple Row Spiral Finned Tube Heat Exchangers

2021 ◽  
Author(s):  
Punnoose Abraham ◽  
Mostafa H. Sharqawy ◽  
M.E. Shawkat
Keyword(s):  
Heat Exchangers ◽  
Finned Tube ◽  
Hydraulic Characteristics

Research on the air pressure drop in plate finned tube heat exchangers

2006 ◽  
Vol 29 (7) ◽  
pp. 1138-1143 ◽  
Author(s):  
Branislav M. Jacimovic ◽  
Srbislav B. Genic ◽  
Boris R. Latinovic
Keyword(s):  
Pressure Drop ◽  
Heat Exchangers ◽  
Finned Tube ◽  
Air Pressure

Heat Exchanger Options for Dry Air Cooling for the sCO2 Brayton Cycle

2017 ◽  
Author(s):  
Anton Moisseytsev ◽  
Qiuping Lv ◽  
James J. Sienicki
Keyword(s):  
Heat Exchanger ◽  
Heat Exchangers ◽  
Cost Effective ◽  
Finned Tube ◽  
Air Cooling ◽  
Brayton Cycle ◽  
Dry Air ◽  
Air Atmosphere ◽  
Air Cooler ◽  
Forced Air

The capability to utilize dry air cooling by which heat is directly rejected to the air atmosphere heat sink is one of the benefits of the supercritical carbon dioxide (sCO2) energy conversion cycle. For the selection and analysis of the heat exchanger options for dry air cooling applications for the sCO2 cycle, two leading forced air flow design approaches have been identified and analyzed for this application; an air cooler consisting of modular finned tube air coolers; and an air cooler consisting of modular compact diffusion-bonded heat exchangers. The commercially available modular finned tube air cooler is found to be more cost effective and is selected as the reference for dry air cooling.

Heat Transfer Enhancement in Triangular Fin

2008 ◽  
Author(s):  
H. Shokouhmand ◽  
M. Moghaddami ◽  
H. Jafari
Keyword(s):  
Heat Transfer ◽  
Heat Transfer Enhancement ◽  
Heat Exchangers ◽  
Industrial Applications ◽  
Finned Tube ◽  
Optimum Thickness ◽  
Transfer Enhancement ◽  
Constant Length ◽  
Heat Rejection ◽  
Triangular Fin

Fins are widely utilized in many industrial applications for example, fins are used in air cooled finned tube heat exchangers like car radiators, heat rejection devices, refrigeration systems and in condensing central heat exchangers. In this paper, heat transfer inside the fin system composed of a primary rectangular fin with a number of rectangular fins (secondary fins), which are attached on its surface, is modeled and analyzed numerically. The length of the secondary fins decreases linearly from the base of the primary fin to its tip. This modified triangular fin is a kind of improved tree fin networks. The effectiveness of the modified triangular fin is compared with the effectiveness of triangular fin which is calculated analytically. The results show that adding secondary fins increases the effectiveness of triangular fin significantly. Also, it is found that increasing the number of secondary fins in a constant length of primary fin will increase the effectiveness. In addition, by comparing the results it can be concluded that by shortening the length of the primary fin in modified triangular fin, the effectiveness will increase significantly to the contrary of the triangular fin, so smaller heat exchangers can be built by using the modified triangular fin. It is found that in a constant length of primary fin, there is an optimum thickness of secondary fins which maximize the effectiveness of the fin.

Flow Analysis and Experimental Study on a Frost Reduction Method for Heat Exchangers

2020 ◽  
Vol 25 (3) ◽  
pp. 9-16
Author(s):  
Gwon-Seok Sun
Keyword(s):  
Experimental Study ◽  
Heat Exchangers ◽  
Reduction Method ◽  
Cooling System ◽  
Flow Analysis ◽  
Finned Tube ◽  
Cooling Efficiency ◽  
Frost Formation ◽  
Air Blast ◽  
New Type

Frosting on the surface of a heat exchanger degrades its cooling efficiency in a cooling system. In this study, frost flow analysis is performed for frost reduction. A new type of air blast refrigerator is designed for reducing frost formation in its finned tube. Experimental results of the frost formation in the air blast refrigerator are presented. The main difference between the proposed and conventional air blast refrigerators is the flow of air through the finned tube. The proposed refrigerator produces less frost than the conventional refrigerators.

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