Thermal Characteristics of a Primary Surface Heat Exchanger with Corrugated Channels

Seo, Jang Won; Cho, Chanyong; Lee, Sang Rae; Choi, Young Don

doi:10.3390/e18010015

Cited by 14 publications

(3 citation statements)

References 17 publications

(29 reference statements)

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“…Dong et al [10], based on a wind Processes 2024, 12, 276 2 of 17 tunnel experiment, studied the heat dissipation performance of a wave-fin radiator, and the numerical relationship between the airflow rate's heat transfer performance and the pressure drop of the radiator was demonstrated. Jang et al [11], based on an experimental analysis, analyzed the correlation between the heat exchanger's Reynolds number, the heat transfer performance, and the air pressure drop, and their results showed that the airflow rate is directly proportional to the heat transfer and that the air pressure drop is inversely proportional to the Reynolds number. Wen [12] and Habib [13], among others, experimentally studied the influence of the flow distribution's non-uniformity on the platefin intercooler's heat dissipation performance, and, as a result, the arrangement of the cooler bundle was improved.…”

Section: Introductionmentioning

confidence: 99%

Research on the Optimization of a Diesel Engine Intercooler Structure Based on Numerical Simulation

Jiang,

Wang,

Jiang

et al. 2024

Processes

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As a device for cooling charged air before it enters the cylinder, the intercooler is an indispensable part of the regular operation of a booster diesel engine. To solve the problem of the insufficient cooling performance of an intercooler for a high-power supercharged diesel engine, in this study, the flow field in the intercooler is simulated using the computational fluid dynamics (CFD) model of porous media, and the performance data measured using the steady flow test bench are used to provide boundary conditions for the calculation. The effects of the charged air mass flow rate and the tube bundle’s transverse spacing on the heat dissipation performance of the intercooler are analyzed and compared. The calculation results show that, under the condition of satisfying the regular operation of the diesel engine, the heat transfer coefficient of the intercooler heat dissipation belt increases with the increase in air mass flow and the spacing of cooling pipes, and the heat transfer coefficient can be increased by up to 57%. Still, excessive spacing of the cooling water pipes increases pressure loss in the charged air. Finally, the transverse spacing of the tube bundle is set to 17 mm, ensuring the pressure drop in the charged air, and the heat dissipation performance of the intercooler is increased by 6.04%. This paper provides a feasible solution for further optimizing the heat dissipation performance of intercoolers. Finally, grey correlation theory is used to study the correlation between air mass flow, cooling water pipe spacing, and intercooler heat dissipation performance. The correlation values are 0.8464 and 0.8497, respectively, indicating a significant relationship between air mass flow, cooling water pipe spacing, and intercooler heat dissipation performance.

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Section: Introductionmentioning

confidence: 99%

Research on the Optimization of a Diesel Engine Intercooler Structure Based on Numerical Simulation

Jiang,

Wang,

Jiang

et al. 2024

Processes

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“…This structure compensates for the lack of air pressure caused by the existing wave action at the intake. Jang-Won Seo et al [3] studied the heat transfer and pressure drop characteristics of a surface heat exchanger when the Reynolds number changes. They found that the heat transfer growth as the flow rate increased.…”

Section: Introductionmentioning

confidence: 99%

The Effect of Compressible Flow on Heat Transfer Performance of Heat Exchanger by Computational Fluid Dynamics (CFD) Simulation

Qin

Chai

et al. 2019

Entropy

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As a part of vehicle thermal management, water-cooled intercoolers play an important role in engine efficiency. The incompressible simulation model was usually applied to estimate the performance of water-cooled intercoolers. In this paper, the computational fluid dynamics (CFD) compressible model is taken to analyze more accurate prediction models. The rate of section change, heat exchange, and the surface friction coefficient are used as the comparison basis of the compressible flow model and incompressible model on the pressurized air side of the water-cooled intercooler. By comparing the simulation results of the air side, it was found that the compressible simulation is closer to the experimental value than the incompressible simulation. Compared with the experiment, the compressible model heat transfer maximum value of deviation is 6.5%, and the pressure loss maximum deviation is 7.5%. This provides guidance to optimize the design of heat exchangers, in order to save on costs and shorten development times.

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“…The structural strength of the core is achieved through the connection of the end plates once all the cells are stacked, as shown in Fig. 5 (Seo et al, 2015). For high pressure applications, the plates can be welded or brazed together to ensure operation up to 200 bar pressure and 815°C temperature (Shah and Sekulic, 1998).…”

Section: Plate-and-frame Heat Exchangermentioning

confidence: 99%

Recent Developments in High Temperature Heat Exchangers: A Review

Ohadi¹,

Zhang²,

Keramati³

et al. 2018

Frontiers in Heat and Mass Transfer

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Heat exchangers are key components of most power conversion systems, a few industrial sectors can particularly benefit from high temperature heat exchangers. Examples include conventional aerospace applications, advanced nuclear power generation systems, and high efficiency stationary and mobile modular fossil fuel to shaft power/electricity conversion systems. This paper provides a review of high temperature heat exchangers in terms of build materials, general design, manufacturing techniques, and operating parameters for the selected applications. Challenges associated with conventional and advanced fabrication technologies of high temperature heat exchangers are discussed. Finally, the paper outlines future research needs of high temperature heat exchangers.

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Thermal Characteristics of a Primary Surface Heat Exchanger with Corrugated Channels

Cited by 14 publications

References 17 publications

Research on the Optimization of a Diesel Engine Intercooler Structure Based on Numerical Simulation

Research on the Optimization of a Diesel Engine Intercooler Structure Based on Numerical Simulation

The Effect of Compressible Flow on Heat Transfer Performance of Heat Exchanger by Computational Fluid Dynamics (CFD) Simulation

Recent Developments in High Temperature Heat Exchangers: A Review

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