Two-phase pressure drop and void fraction in a cross-corrugated plate heat exchanger channel: Impact of flow direction and gas-liquid distribution

Buscher, Susanne

doi:10.1016/j.expthermflusci.2021.110380

Cited by 21 publications

(6 citation statements)

References 32 publications

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“…Furthermore, more research is required to improve the design of the inlet ports. Another three experimental studies were carried out by Buscher [16][17][18] to visualize and simulate the flow pattern of two-phase flow in C-PHE. In this work [16] and related references, edge detection was used to separate large bubble clusters and texture analysis identified the local film and bubbly flow.…”

Section: Introductionmentioning

confidence: 99%

“…According to his investigation [18], the centrifugal force has a great effect on the flow direction of two-phase flow which circumvents the channel corrugations concerning the buoyancy force. Hence, He observed that the effects of flow direction on two-phase flow in both cases of a dominant centrifugal and dominant buoyancy were small to negligible and significant on the mean diameter, respectively [17]. Lee et al [19] conducted their experimental work to evaluate the pressure losses of inlet and outlet ports for single-phase and two-phase R1234ze(E) flows inside PHE.…”

Section: Introductionmentioning

confidence: 99%

“…However, the recent investigation that focuses on studying the energetic and exergetic performance of C-PHE presented by Marouf et al [12] deals with ABI into the HWS with a parallel flow arrangement. Moreover, few research papers focus on the mechanisms of heat transfer due to ABI in PHE using visualization and simulation techniques without addressing the impacts on the energetic-exergetic performance of PHE [15][16][17][18][19].…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Combined Energetic and Exergetic Performance Analysis of Air Bubbles Injection into a Plate Heat Exchanger: An Experimental Study

Marouf

Fouad

2023

Energies

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This paper aims to give a comprehensive energetic-exergetic performance analysis on the impacts of injecting-submillimeter of air bubbles into both sides of cold and hot water streams before the entrance port of a corrugated plate heat exchanger (C-PHE) having ten plates within counterflow configuration. Hence, optimize the energy and exergy effectiveness at different operating conditions for counter and parallel fluid flow configurations. Hot streams were studied in seven flow rates ranging from 280 L/h to 880 L/h with a regular step of 100 L/h, and constant hot water temperature and cold-water stream of 50 °C and 290 L/h, respectively. Hence, the air was discharged with four flow rates ranging between 150 and 840 L/h. The obtained results showed the vital role of the ABI technique in enhancing the NTU and effectiveness by 59% and 18.6%, respectively, for CWS. The entropy generation was reduced to 0.038 W/K and the augmentation entropy generation number to 0.087 at the low airflow rate for CWS, which are the main parameters for evaluating the EGM. These two parameters increase the Witte-Shamsundar-efficiency to a maximum value of 98.6% at the same operating conditions. Moreover, the exergy effectiveness was enhanced to a maximum value of 80.9% at a high ABI flow rate and low volumetric rate of the hot stream at CWS. The thermo-economic assessment has been carried out, which revelers the positive effects of ABI on the combined energetic and exergetic performance on both sides, i.e., hot and cold sides.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Combined Energetic and Exergetic Performance Analysis of Air Bubbles Injection into a Plate Heat Exchanger: An Experimental Study

Marouf

Fouad

2023

Energies

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“…Gas-liquid two-phase flow in microchannels has gained increasing attention owing to its wide range of applications; for example, it is used in the chemical industry, biomedicine, and electronic cooling. [1][2][3][4] Scaling up twophase flow is crucial to meet industrial demands. Therefore, phase split of two-phase flow plays an essential role in the application of the flow in micro-devices.…”

Section: Introductionmentioning

confidence: 99%

Phase split of gas–non‐Newtonian fluid two‐phase flow in a ψ‐shaped branching microchannel

Feng,

Yang,

Liu

et al. 2023

Can J Chem Eng

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An experiment of phase split was conducted in a horizontal ψ‐shaped branching microchannel to study the phase distribution and pressure drop at the bifurcation. The pressure drop at the test section and the flow rates of the gas and liquid phases through the three branches were measured. The pressure drop gradients at the inlet and branches were predicted by the correlation based on the separated flow model. The critical condition for the split of the two‐phase flow was determined. The results showed that the gas phase separated from the side arm was more than the liquid phase. A uniform distribution could be achieved for the churn flow in water. Pressure drop occurred at the bifurcation of the side arm under the effect of the vortex in the liquid slug near the bubble nose; the pressure drop was much greater than that at the bifurcation of the run.

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“…In the plants, condensers can account for more than half of the total heat transfer area and one third of the total equipment costs (Liu et al, 2015;Heberle and Brüggemann, 2015). Plate heat exchangers (PHEs) have superior heat transfer performance and are suitable to be used as condensers Luo et al, 2023;Chen et al, 2019;Buscher, 2021). The combination of NH 3 /H 2 O and PHEs transfers large heat loads with compact structures and reduced charge of working fluids.…”

Section: Introductionmentioning

confidence: 99%

Condensation of NH3/H2O with mass concentrations of 80%-96%: Experimental study in a plate heat exchanger

Tao

Shen²,

Wang³

et al. 2023

International Journal of Refrigeration

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Two-phase pressure drop and void fraction in a cross-corrugated plate heat exchanger channel: Impact of flow direction and gas-liquid distribution

Cited by 21 publications

References 32 publications

Combined Energetic and Exergetic Performance Analysis of Air Bubbles Injection into a Plate Heat Exchanger: An Experimental Study

Combined Energetic and Exergetic Performance Analysis of Air Bubbles Injection into a Plate Heat Exchanger: An Experimental Study

Phase split of gas–non‐Newtonian fluid two‐phase flow in a ψ‐shaped branching microchannel

Condensation of NH3/H2O with mass concentrations of 80%-96%: Experimental study in a plate heat exchanger

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