Research on Numerical Simulation Technology of Spiral Plate Heat Exchanger

2019 ◽  
Author(s):  
Baochang Liu ◽  
Caifu Qian ◽  
Jiandong Zou ◽  
Yiming He
Keyword(s):  
Numerical Simulation ◽  
Heat Exchanger ◽  
Plate Heat Exchanger ◽  
Simulation Technology ◽  
Plate Heat ◽  
Spiral Plate

Spiral-Plate Heat Exchanger Effectiveness With Equal Capacitance Rates

2005 ◽  
Author(s):  
Louis C. Burmeister
Keyword(s):  
Heat Exchanger ◽  
Plate Heat Exchanger ◽  
Close Approximation ◽  
Transfer Coefficients ◽  
Plate Heat ◽  
Heat Transfer Coefficients ◽  
Outer Periphery ◽  
Large Heat ◽  
The Difference ◽  
Spiral Plate

A formula is derived for the dependence of heat exchanger effectiveness on the number of transfer units for a spiral-plate heat exchanger with equal capacitance rates. The difference-differential equations that describe the temperature distributions of the two counter-flowing fluids, neglecting thermal radiation, are solved symbolically to close approximation. Provision is made for offset inlet and exit of the hot and cold fluids at the outer periphery and for large heat transfer coefficients in entrance regions. The peak effectiveness and the number of transfer units at which it occurs are predicted.

A Continuous Heat Regenerative Adsorption Refrigerator Using Spiral Plate Heat Exchanger as Adsorbers: Improvements

1999 ◽  
Vol 121 (1) ◽  
pp. 14-19 ◽  
Author(s):  
R. Z. Wang ◽  
J. Y. Wu ◽  
Y. X. Xu
Keyword(s):  
Activated Carbon ◽  
Heat Exchanger ◽  
Heat Exchangers ◽  
Plate Heat Exchanger ◽  
Cooling Power ◽  
Thermal Cycles ◽  
Plate Heat ◽  
Spiral Plate ◽  
Continuous Heat

Spiral plate heat exchangers as adsorbers have been proposed, and a prototype heat regenerative adsorption refrigerator using activated carbon-methanol pair has been developed and tested. Various improvements have been made, at last we get a specific cooling power for 2.6 kg-ice/day-kg adsorbent at the condition of generation temperature lower than 100°C. Discussions on the arrangements of thermal cycles and influences of design are shown.

scholarly journals Experimental and numerical studies of a spiral plate heat exchanger

2014 ◽  
Vol 18 (4) ◽  
pp. 1355-1360 ◽  
Author(s):  
Rajavel Rangasamy
Keyword(s):  
Heat Transfer ◽  
Nusselt Number ◽  
Heat Exchanger ◽  
Numerical Study ◽  
Numerical Models ◽  
Plate Heat Exchanger ◽  
Test Fluid ◽  
Plate Heat ◽  
Plate Spacing ◽  
Spiral Plate

An experimental and numerical study of heat transfer and flow characteristics of spiral plate heat exchanger was carried out. The effects of geometrical aspects of the spiral plate heat exchanger and fluid properties on the heat transfer characteristics were also studied. Three spiral plate heat exchangers with different plate spacing (4mm, 5mm and 6 mm) were designed, fabricated and tested. Physical models have been experimented for different process fluids and flow conditions. Water is taken as test fluid. The effect of mass flow rate and Reynolds number on heat transfer coefficient has been studied. Correlation has been developed to predict Nusselt numbers. Numerical models have been simulated using CFD software package FLUENT 6.3.26. The numerical Nusselt number have been calculated and compared with that of experimental Nusselt number.

Effectiveness of a Spiral-Plate Heat Exchanger With Equal Capacitance Rates

2005 ◽  
Vol 128 (3) ◽  
pp. 295-301 ◽  
Author(s):  
Louis C. Burmeister
Keyword(s):  
Heat Exchanger ◽  
Plate Heat Exchanger ◽  
Linear Functions ◽  
Transfer Coefficients ◽  
Archimedean Spiral ◽  
Plate Heat ◽  
Outer Periphery ◽  
Maximum Angle ◽  
The Difference ◽  
Spiral Plate

Abstract A formula is derived for the dependence of heat exchanger effectiveness on the number of transfer units for a spiral-plate heat exchanger with equal capacitance rates. The difference-differential equations that describe the temperature distributions of the two counter-flowing fluids, neglecting the effects of thermal radiation, are solved symbolically to close approximation. Provision is made for the offset inlet and exit of the hot and cold fluids at the outer periphery and for large heat transfer coefficients in the entrance regions. The peak effectiveness and the number of transfer units at which it occurs are linear functions of the maximum angle of the Archimedean spiral that describes the ducts; entrance region effects reduce both.

New experimental Nusselt number correlation for spiral plate heat exchanger optimized using a code

2020 ◽  
pp. 095765092094829
Author(s):  
Meisam Ghodrati ◽  
Jamshid Khorshidi
Keyword(s):  
Experimental Data ◽  
Nusselt Number ◽  
Heat Exchanger ◽  
Plate Heat Exchanger ◽  
Average Error ◽  
Plate Heat ◽  
Complete Uncertainty ◽  
Working Parameters ◽  
Spiral Plate ◽  
Nusselt Number Correlation

A system of a spiral plate heat exchanger and its required auxiliaries was built. The pitches of heat exchanger were built differently to provide almost two geometrically different heat exchangers in a single package. Several experiments were done and working parameters of the heat exchanger were measured. A code was written to find a new optimised correlation that could approximate the Nusselt Number based on the obtained experimental data from 51 reliable experiments. As an advantage, that correlation was valid for low Reynolds Numbers. Also, in most of previous works, the correlation for Nusselt Number in one side of the heat exchanger was supposed to be known and the correlation for the other side was determined. But, in this study, the equation was found using calculations for both sides simultaneously. The overal heat transfer coefficient calculated from the proposed correlation, made an average error of 3.65% to the experimental data. A complete uncertainty analysis was done and revealed that the results from the new correlation for the Nusselt Number lies between [Formula: see text] around the real Nusselt Number.

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