Simultaneous heat and mass transfer characteristics for wavy fin-and-tube heat exchangers under dehumidifying conditions

Pirompugd, Worachest; Wongwises, Somchai; Wang, Chi-Chuan

doi:10.1016/j.ijheatmasstransfer.2005.05.043

Cited by 75 publications

(26 citation statements)

References 18 publications

(26 reference statements)

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“…In the similar manner, Pirompugd et al (2006) carried out experiments on the wavy-finned-tube heat exchangers in the dehumidifying conditions. The experimental setup and geometrical parameters were the same as in their previous study.…”

Section: Plate Finsmentioning

confidence: 99%

A review on the thermal hydraulic characteristics of the air-cooled heat exchangers in forced convection

Kumar

Joshi

Nayak

et al. 2015

Sadhana

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In this paper, a review is presented on the experimental investigations and the numerical simulations performed to analyze the thermal-hydraulic performance of the air-cooled heat exchangers. The air-cooled heat exchangers mostly consist of the finned-tube bundles. The primary role of the extended surfaces (fins) is to provide more heat transfer area to enhance the rate of heat transfer on the air side. The secondary role of the fins is to generate vortices, which help in enhancing the mixing and the heat transfer coefficient. In this study, the annular and plate fins are considered, the annular fins are further divided into four categories: (1) plane annular fins, (2) serrated fins, (3) crimped spiral fins, (4) perforated fins, and similarly for the plate fins, the fin types are: (1) plain plate fins, (2) wavy plate fins, (3) plate fins with DWP, and (4) slit and strip fins. In Section 4, the performance of the various types of fins is presented with respect to the parameters: (1) Reynolds number, (2) fin pitch, (3) fin height, (4) fin thickness, (5) tube diameter, (6) tube pitch, (7) tube type, (8) number of tube rows, and (9) effect of dehumidifying conditions. In Section 5, the conclusions and the recommendations for the future work have been given.

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Section: Plate Finsmentioning

confidence: 99%

A review on the thermal hydraulic characteristics of the air-cooled heat exchangers in forced convection

Kumar

Joshi

Nayak

et al. 2015

Sadhana

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“…After analysing the methodologies used to determine heat transfer coefficient (Taylor 2004;Pirompugd et al 2006;Kastl 2012), the optimal AHRI methodology described in the standard (AHRI 2001) was selected. This methodology is based on logarithmic mean temperature difference (LMTD) (Lin et al 2002) in heating mode and the logarithmic mean enthalpy difference (LMED) (Xia et al 2009) when the cooling mode is analysed (i.e.…”

Section: Introductionmentioning

confidence: 99%

Experimental Analysis of Fin and Tube Heat Exchanger in Heating and Cooling Mode

Rubcov

Paulauskaitė

Misevičiūtė

2017

Proccedings of 10th International Conference "Environmental Engineering"

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“…Moreover, Wang and Chang (1998) also tested the cooling coil and presented the correlation of the Lewis number (Le), but the correlation did not include the effect of relative humidity. Furthermore, Pirompugd et al (2006) reported the value of the Lewis number (Le) from experimental data at the range of 0.61.1.…”

Section: Introductionmentioning

confidence: 99%

The Behavior of Lewis Number in Finned Tube Cooling Coils under Highly Moist Inlet Air Conditions

Howongsakun¹,

Theerakulpisut²,

Sujumnongtokul³

et al. 2016

IJTech

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The objective of this research was to study the effects of highly moist inlet air conditions such as temperature, relative humidity, and frontal air velocity on the value of the Lewis number (Le) in the cooling and dehumidifying process of air. A finned tube cooling coil was tested under ranges of temperature, relative humidity and frontal velocity. It was found that the Lewis number (Le) varied within the range of 0.921.62 and that the increase in inlet air relative humidity tends to decrease the Lewis number (Le). Based on the experimental, a correlation for predicting the Lewis number (Le) was also established in this article. The correlation has the mean absolute error (MAE) of 3.04% and covers 98.07% of the data where a discrepancy within ± 10%.

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Simultaneous heat and mass transfer characteristics for wavy fin-and-tube heat exchangers under dehumidifying conditions

Cited by 75 publications

References 18 publications

A review on the thermal hydraulic characteristics of the air-cooled heat exchangers in forced convection

A review on the thermal hydraulic characteristics of the air-cooled heat exchangers in forced convection

Experimental Analysis of Fin and Tube Heat Exchanger in Heating and Cooling Mode

The Behavior of Lewis Number in Finned Tube Cooling Coils under Highly Moist Inlet Air Conditions

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