Thermo-hydraulic characteristics of heat exchangers having the smooth or the herringbone wave fins on 12.7 mm tubes under dehumidifying condition

2021 ◽  
Author(s):  
Nae-Hyun Kim
Keyword(s):  
Heat Exchangers ◽  
Hydraulic Characteristics

Thermal-Hydraulic Characteristics of Helical Baffle Shell-and-Tube Heat Exchangers

2019 ◽  
Vol 41 (13) ◽  
pp. 1143-1155 ◽  
Author(s):  
Bassel A. Abdelkader ◽  
Muhammad Ahmad Jamil ◽  
Syed M. Zubair
Keyword(s):  
Heat Exchangers ◽  
Hydraulic Characteristics ◽  
Helical Baffle ◽  
Shell And Tube

Influence of alternating V-rows tube layout on thermal-hydraulic characteristics of twisted elliptical tube heat exchangers

2020 ◽  
Vol 159 ◽  
pp. 120070
Author(s):  
Huaduo Gu ◽  
Yaping Chen ◽  
Bengt Sundén ◽  
Jiafeng Wu ◽  
Ning Song ◽  
...  
Keyword(s):  
Heat Exchangers ◽  
Hydraulic Characteristics

scholarly journals Analysis of Operation of Throttle Micro-cooler at Nitrogen Use with Near-critical Parameters

2018 ◽  
Vol 179 ◽  
pp. 03019
Author(s):  
Dmitry Uglanov ◽  
Dmitry Sarmin ◽  
Alina Akulova ◽  
Daria Aksenova ◽  
Sophia Dostovalova
Keyword(s):  
Heat Exchangers ◽  
Cooling System ◽  
Critical Parameters ◽  
Infrared Range ◽  
Hydraulic Characteristics ◽  
Nitrogen Use ◽  
Aerospace Applications ◽  
Research Systems ◽  
Two Systems

The work of a throttle cooling system with a standard balloon and a throttle cooling system from a cryogenic filling balloon is considered. A comparison between the geometric and hydraulic characteristics of the micro heat exchangers of the two systems is made. The prospects of using the latest system for cooling of photodetector devices (PD) of the infrared range of navigation and research systems for aerospace applications are also shown.

Thermal hydraulic characteristics of cryogenic offset-strip fin heat exchangers

2019 ◽  
Vol 150 ◽  
pp. 88-98 ◽  
Author(s):  
Qingfeng Jiang ◽  
Ming Zhuang ◽  
Zhigang Zhu ◽  
Jiubing Shen
Keyword(s):  
Heat Exchangers ◽  
Hydraulic Characteristics ◽  
Offset Strip Fin

Fouling and thermal-hydraulic characteristics of aligned elliptical tube and honeycomb circular tube in flue gas heat exchangers

Fuel ◽  
2019 ◽  
Vol 251 ◽  
pp. 316-327 ◽  
Author(s):  
Song-Zhen Tang ◽  
Ming-Jia Li ◽  
Fei-Long Wang ◽  
Zhan-Bin Liu
Keyword(s):  
Flue Gas ◽  
Heat Exchangers ◽  
Circular Tube ◽  
Hydraulic Characteristics

Effect of Surface Roughness on Thermal-Hydraulic Characteristics of Plate Heat Exchanger

2013 ◽  
Vol 597 ◽  
pp. 63-74 ◽  
Author(s):  
Jan Wajs ◽  
Dariusz Mikielewicz
Keyword(s):  
Heat Transfer ◽  
Heat Exchanger ◽  
Heat Exchangers ◽  
Single Phase ◽  
Plate Heat Exchanger ◽  
Heat Transfer Surface ◽  
Surface Model ◽  
Phase System ◽  
Hydraulic Characteristics ◽  
Plate Heat

In the paper the experimental analysis of passive heat transfer intensification in the case of modeled plate heat exchanger is conducted. The plate heat exchanger is chosen for the analysis because this kind of heat exchangers could be prospectively applied in the ORC systems, however other areas or application are equally possible. The experimental set-up was assembled at the Department of Energy and Industrial Apparatus of Gdansk University of Technology. The passive intensification was obtained by a modification of the heat transfer surface. The roughness of surface was increased by use of glass shot.During the experiment single-phase convective heat transfer in the single phase system was studied. The experiment was done in two stages. In the first stage the model of commercial plate heat exchanger was investigated, while in the second stage the identical one but with modified heat transfer surface. Model of heat exchanger consisted of three plates. The direct comparison of thermal and flow characteristics between both devices was possible due to assurance of equivalent conditions at the inlet to the system.The thermal and hydraulic characteristics are presented. The thermal analysis shows that in some range of heat flux density the overall heat transfer coefficient was higher for the commercial heat exchanger, while for the other was higher for the heat exchanger with modified surface. The influence of larger roughness on heat transfer cannot unequivocally be evaluated. Therefore as the next step the systematic investigations of model heat exchangers (only with one hot and one cold passage) will be conducted.

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