The theory of the single-pass cross-flow heat interchanger

Binnie, A. M.; Poole, E. G. C.

doi:10.1017/s0305004100019800

Cited by 10 publications

(4 citation statements)

References 2 publications

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“…Also, numbers of cross flow heat exchanger models have been obtained [9][10][11][12][13][14][15][16][17]. However, this assumption gives unsatisfactory prediction when the fluid properties change dynamically with temperature and pressure.…”

Section: Development Of Pche Analysis Code: Governing Equationsmentioning

confidence: 99%

Development of an advanced printed circuit heat exchanger analysis code for realistic flow path configurations near header regions

Son

Lee

2015

International Journal of Heat and Mass Transfer

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Section: Development Of Pche Analysis Code: Governing Equationsmentioning

confidence: 99%

Development of an advanced printed circuit heat exchanger analysis code for realistic flow path configurations near header regions

Son

Lee

2015

International Journal of Heat and Mass Transfer

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“…Exact solutions of this problem had been reported by Nusselt [10,11]. There are various crossflow heat exchanger models [12][13][14][15][16][17][18][19], but it is proven that those all models are alternative expression of Nusselt's model [20]. Thus, in this section, the crossflow heat exchanger model has been introduced based on the Nusselt model.…”

Section: Analytical Solution Of Crossflow Printed-circuit Heat Exchangermentioning

confidence: 99%

Analytical Study on Thermal and Mechanical Design of Printed Circuit Heat Exchanger

Yoon

Sabharwall

Kim

2013

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The analytical methodologies for the thermal design, mechanical design, and cost estimation of printed circuit heat exchanger are presented in this study. Three flow arrangements for PCHE of parallel flow, countercurrent flow and crossflow are taken into account. For each flow arrangement, the analytical solution of temperature profile of heat exchanger is introduced. The size and cost of printed circuit heat exchangers for advanced small modular reactors are also presented using various coolants such as sodium, molten salts, helium, and water. viii ix SUMMARYPrinted Circuit Heat Exchanger (PCHE) is one of the candidate designs of Very High Temperature Reactor (VHTR) or Advanced High Temperature Reactor (AHTR) heat exchanger (HX). Fine grooves in the plate of PCHE are made by using the technique that is employed for making printed circuit board. This heat exchanger is formed by the diffusion bonding of stacked plates whose grooved surfaces are the flow paths. Thermal design of heat exchanger is required to determine the size and effectiveness of heat exchanger. To evaluate the structural integrity, mechanical design of heat exchanger must be investigated. In a previous study, the parallel/counter flow PCHE analysis code was developed. The methodologies for the thermal and mechanical design of parallel/counter flow PCHE used in previous study are also summarized in this report.The objective of this work is to develop the analysis code for the crossflow PCHE to determine the size and cost of crossflow PCHE for AHTR. The size of the crossflow PCHE is determined through thermal design process of heat exchanger. Two dimensional temperature profiles in primary and secondary sides of crossflow PCHE are obtained from the solution of analytical model of crossflow PCHE assuming a single pass, both with unmixed fluid, and no contribution from longitudinal heat conduction. The mechanical design of crossflow PCHE is to determine the criteria of geometric parameters of structure for maintaining the integrity of the heat exchanger. The method for mechanical design of crossflow PCHE is developed based on that of parallel/counter flow PCHE.To verify the developed code, the grid sensitivity test and effectiveness-number of transfer units (NTU) analysis were carried out. The grid sensitivity test for the developed code was performed to evaluate the effect of grid number on the result. The result of grid sensitivity test shows that the effect of grid number is negligible. The effectiveness-NTU analysis was carried out to verify the developed code. The calculated effectiveness by the code and -NTU correlation for crossflow heat exchanger shows a good agreement with each other.As a parametric study, uncertainty analyses for fluid properties and heat transfer correlation were performed. The uncertainty of fluid properties was investigated by assuming ±30% of uncertainty in fluid material properties. The result of uncertainty analysis shows that the uncertainty of fluid property was negligible in the thermal design of crossflow...

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“…For one case Equation 45 may be checked. For heat exchangers /( ) = 1, and for this case Binnie and Poole (1937) were able to obtain an exact solution of Equation 39 in the form of a series. They gave an example problem in which water entered at 40°F and another liquid at 100°F, and the dimensions of the heat exchanger were 13.76 X 20 ft.…”

Section: 99mentioning

confidence: 99%