Numerical investigation on the effect of a modified corrugated double tube heat exchanger on heat transfer enhancement and exergy losses

Pesteei, Seyed Mehdi; Mashoofi, Nemat; Pourahmad, Saman; Roshana, Ashkan

doi:10.18280/ijht.350202

Cited by 17 publications

(2 citation statements)

References 7 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In addition, the exergy loss of double segmental type is higher than that of single one. To compare the results of shell-and-tube heat exchanger with the results of a double tube heat exchanger, the study of Pesteei et al (2017) is introduced.…”

Section: Discussionmentioning

confidence: 99%

Numerical study of heat transfer and exergy analysis of a heat exchanger with single and double segmental baffles

Usefian¹,

Bayareh²

2018

isi

View full text Add to dashboard Cite

Considering the significant role of heat exchangers in industrial applications, the study of their behavior and how the various parameters influence on their performance has been considered extremely. In this paper, heat transfer and exergy analysis of a threedimensional baffled shell and tube heat exchanger is investigated numerically. The number of baffles and also the change of the baffle to the segmental ones are considered as the physical variable of the problem. The κ-ω SST turbulence model is used to simulate the turbulent flow. The two hot and cold fluids are oil and water, respectively. Heat transfer, pressure drop and exergy analysis are analyzed for different conditions. The results show that heat transfer rate and exergy loss increase by increasing the oil flow rate. By changing the number of baffles from 3 to 5, the amount of heat transfer and the loss of exergy enhance.RÉSUMÉ. Compte tenu du rôle important des é changeurs de chaleur dans les applications industrielles, l'étude de leur comportement et l'influence des différents paramètres sur leur performance ont é té extrê mement é tudié es. Dans cet article, l'analyse de transfert thermique et d'exergie d'un é changeur de chaleur à calandre et à baffles tridimensionnels est é tudié e numé riquement. Le nombre de baffles, ainsi que leur changement en ceux segmentaux, sont considérés comme la variable physique du problème. Le modèle de turbulence κ-ω SST est utilisé pour simuler l'é coulement turbulent. Les deux fluides chaud et froid sont respectivement celui de l'huile et de l'eau. Les analyses de transfert thermique, de chute de pression et d'exergie sont analysé es pour diffé rentes conditions. Les ré sultats montrent que le taux de transfert thermique et la perte d'exergie augmentent en accompagnant de l'augmentation du débit d'huile. En modifiant le nombre de baffles de 3 à 5, la quantité de transfert thermique et la perte d'exergie augmentent.

show abstract

Section: Discussionmentioning

confidence: 99%

Numerical study of heat transfer and exergy analysis of a heat exchanger with single and double segmental baffles

Usefian¹,

Bayareh²

2018

isi

View full text Add to dashboard Cite

show abstract

“…In order to improve cooling performance, one possible task is to modify the structure of the heat exchangers which play an important role in heat transfer (Ramezanizadeh, Alhuyi Nazari, Ahmadi, & Chau, 2019). Pesteei, Mashoofi, Pourahmad, and Roshana (2017) studied a double-tube heat exchanger with corrugated inner tubes. They used semi-elliptical corrugations on the outer side of an inner tube of a heat exchanger and this method delayed the separation of flow.…”

Section: Introductionmentioning

confidence: 99%

A numerical and experimental study on the energy efficiency of a regenerative Heat and Mass Exchanger utilizing the counter-flow Maisotsenko cycle

Abadi

Sadi

Farzaneh–Gord

et al. 2019

Engineering Applications of Computational Fluid Mechanics

View full text Add to dashboard Cite

In this work, a numerical and experimental study is performed to evaluate the affecting variables on energy efficiency of a novel regenerative evaporative cooler utilizing dew-point indirect evaporative cooling. For first time, an investigation is experimentally and numerically carried out to study the effects of the channel number on important parameters such as product temperature and humidity ratio. Investigations are carried out for five configurations with various channel numbers. The comparison of the numerical and experimental results is obtained and well accuracy observed. For the five studied configurations, the results show that with an increase in the number of channels, the outlet temperature decreases. For an inlet air flow rate of 100-600 m 3 /h, the cooled outlet flow temperature changes to the range of 23.4-30. 7°C, 19.7-28.3°C, 18-26.4°C, 17.2-25°C and 16.6-23.8°C. For the configurations with finned channels, the percentage of increase in produced air temperature reaches 11.5% for HMX B, 18.6% for HMX C, 23.4% for HMX D and 26.9% for HMX E, as compared with HMX A. ARTICLE HISTORY

show abstract

Numerical study of a dimpled tube with conical turbulator using the first and second laws of thermodynamics

Khanmohammadi

Jahangiri

Nazari

et al. 2023

J Therm Anal Calorim

View full text Add to dashboard Cite

Numerical investigation on the effect of a modified corrugated double tube heat exchanger on heat transfer enhancement and exergy losses

Cited by 17 publications

References 7 publications

Numerical study of heat transfer and exergy analysis of a heat exchanger with single and double segmental baffles

Numerical study of heat transfer and exergy analysis of a heat exchanger with single and double segmental baffles

A numerical and experimental study on the energy efficiency of a regenerative Heat and Mass Exchanger utilizing the counter-flow Maisotsenko cycle

Numerical study of a dimpled tube with conical turbulator using the first and second laws of thermodynamics

Contact Info

Product

Resources

About