An experimental study of a three-phase, direct-contact heat exchanger

Siqueiros, J.; Bonilla, Oriel Herrera

doi:10.1016/s1359-4311(98)00068-4

Cited by 15 publications

(5 citation statements)

References 13 publications

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“…Therefore, different aspects of their experimental investigation, mathematical modeling and optimization can be found in literature. It can be seen even from titles of the papers on the problem in question recently published in various journals [1][2][3][4][5][6][7]. The objective of the present study is to model and optimize the process in a contact heat exchanger from the viewpoint of using them to utilize heat of exhaust gases with high moisture content.…”

Section: Introductionmentioning

confidence: 99%

A Cell Model to Describe and Optimize Heat and Mass Transfer in Contact Heat Exchangers

Mizonov¹,

Yelin²,

Yakimychev³

2011

EPE

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A cell model to describe and optimize heat and mass transfer in contact heat exchangers for utilization of exhaust gases heat is proposed. The model is based on the theory of Markov chains and allows calculating heat and mass transfer at local moving force of the processes in each cell. The total process is presented as two parallel chains of cells (one for water flow and one for gas flow). The corresponding cells of the chains can exchange heat and mass, and water and gas can travel along their chains according to their transition ma-trices. The results of numerical experiments showed that the most part of heat transfer occurs due to moisture condensation from gas and the most intense heat transfer goes near the inlet of gas. Experimental validation of the model showed a good correlation between calculated and experimental data for an industrial contact heat exchanger if appropriate empirical equations were used to calculate heat and mass transfer coefficient. It was also shown that there exists the optimum height of heat exchanger that gave the maximum gain in heat energy utilization

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Section: Introductionmentioning

confidence: 99%

A Cell Model to Describe and Optimize Heat and Mass Transfer in Contact Heat Exchangers

Mizonov¹,

Yelin²,

Yakimychev³

2011

EPE

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“…It should be noted that the series 4 tests (point 13,14,15,16) which were for 10mm apart from the centerline showed minimum change of local temperatures. Especially at the point 16, no temperature changed at all, which means that the direct boiling was limited in very narrow area around the ethanol jet.…”

Section: Temperature Distribution Around Ethanol Jetmentioning

confidence: 93%

“…In order to investigate the direct contact heat transfer of water jet in LBE, a simulating test might be desirable to conduct the investigation at considerably low temperature with different fluids pairs, such as butane & pentane drops / water [9], Isopentane & cyclopentane / water [12], n-pentane / water [13,14]. Buongiorno et al [15] pointed out that "If fluids other than water / LBE are selected as stimulants of water / LBE, the experimental results must be correlated and interpreted in terms of dimensionless numbers to allow a meaningful conversion to different fluids and / or thermal-hydraulic conditions."…”

Section: Fig 2 Rapid Response Thermocouple Assemblymentioning

confidence: 99%

Experimental Study on Thermal Interaction of Ethanol Jets in High Temperature Fluorinert

Takahashi

2012

JPES

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As a fundamental study for the direct contact heat exchange which was employed for in-vessel heat exchange in the Pb-Bi-cooled direct contact boiling water small fast reactor (PBWFR) and for the steam generator tube rupture (SGTR) accident in lead alloy-cooled fast reactor (LFR), ethanol jet was injected into high temperature fluorinert (FC-3283) as a simulation experiment in order to investigate the jet boiling phenomena just after volatile water contacting with the high temperature continuous lead alloy liquid. Two series of tests (no-boiling and boiling) were initiated to evaluate the ethanol vapor volume which generated around the ethanol jet. From synchronized temperature measurement around ethanol jet, the overview of the boiling behavior showed that jet boiling occurred at bottom part of jet first and developed to the upper part within very narrow area around jet.

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“…(1), vapour collects at the top of the two-phase bubble whilst liquid spreads and accumulates at the bottom with a monolayer film of condensed liquid covering the whole bubble surface [1,2]. Therefore, three distinct phases (pentane liquid-pentane vapour-water) are present in the process and a three-phase direct contact condenser is emerged similar the case of three-phase direct contact evaporator [3][4][5][6][7].…”

Section: Introductionmentioning

confidence: 99%

Heat transfer measurement in a three-phase direct-contact condenser under flooding conditions

Mahood

Campbell

Sharif

et al. 2016

Applied Thermal Engineering

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An experimental study of a three-phase, direct-contact heat exchanger

Cited by 15 publications

References 13 publications

A Cell Model to Describe and Optimize Heat and Mass Transfer in Contact Heat Exchangers

A Cell Model to Describe and Optimize Heat and Mass Transfer in Contact Heat Exchangers

Experimental Study on Thermal Interaction of Ethanol Jets in High Temperature Fluorinert

Heat transfer measurement in a three-phase direct-contact condenser under flooding conditions

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