The Application Research of Matlab in Heat Exchanger Tube and Shell Pressure Drop Test Process

2011 ◽  
Vol 121-126 ◽  
pp. 4193-4197
Author(s):  
Wei Na Liu ◽  
Xue Liang Pei ◽  
Li Feng Yang ◽  
Jun Yuan ◽  
Xiu Min Nie
Keyword(s):  
Experimental Data ◽  
Heat Exchanger ◽  
Pressure Drop ◽  
Curve Fitting ◽  
Application Research ◽  
Heat Exchanger Tube ◽  
Shell Side ◽  
Test Process ◽  
Exchanger Tube

Based on the powerful function of MATLAB software in curve fitting of data, this paper introduces the commonly used method of MATLAB in curve fitting, and uses the polynomial fitting function provided by MATLAB to curve fitting the experimental data of the pressure drop determination of the tube side and shell side of the heat exchanger.The results show that it is much easier and more accurate than traditional ways to curve fitting using the MATLAB.

Heat-Exchanger Tube-Sheet Design—2: Fixed Tube Sheets

1952 ◽  
Vol 19 (2) ◽  
pp. 159-166
Author(s):  
K. A. Gardner
Keyword(s):  
Thermal Expansion ◽  
Heat Exchanger ◽  
Tube Sheet ◽  
Heat Exchanger Tube ◽  
Shell Side ◽  
Side Pressure ◽  
Differential Thermal Expansion ◽  
Design Factors ◽  
Exchanger Tube ◽  
Design Pressure

Abstract It is shown that “fixed” tube sheets may be designed in exactly the same manner as “floating” tube sheets with the same boundary restraint, provided that a fictitious uniform “equivalent design pressure” is used in the calculations instead of the actual hydrostatic pressure. This equivalent pressure is evaluated in terms of tube-side pressure, shell-side pressure, differential thermal expansion, and the condition of boundary restraint. The design factors for all tube sheets presented in an earlier paper are shown to be well represented by very simple expressions when the fundamental design parameter xa becomes large.

Acoustic Resonance in Heat Exchanger Tube Bundles—Part II: Prediction and Suppression of Resonance

1987 ◽  
Vol 109 (3) ◽  
pp. 282-288 ◽  
Author(s):  
R. D. Blevins ◽  
M. M. Bressler
Keyword(s):  
Experimental Data ◽  
Heat Exchanger ◽  
Vortex Shedding ◽  
Empirical Model ◽  
Acoustic Resonance ◽  
Heat Exchanger Tube ◽  
Tube Bundles ◽  
Semi Empirical ◽  
Exchanger Tube

In the first part of this series, experimental data were presented which suggest that the acoustic resonance in heat exchanger tube bundles is tied to periodic vortex shedding from the tubes. In this paper, a semi-empirical model for predicting the onset of resonance is developed. This model is compared with experimental data and other models from the literature. Methods of suppressing the resonance are developed and experimental data on their effectiveness are presented.

Heat, Mass, and Momentum Transfer Inside Frosted Tubes—Experiment and Theory

1964 ◽  
Vol 86 (3) ◽  
pp. 334-340 ◽  
Author(s):  
M. M. Chen ◽  
W. Rohsenow
Keyword(s):  
Heat Transfer ◽  
Surface Roughness ◽  
Heat Exchanger ◽  
Pressure Drop ◽  
Momentum Transfer ◽  
Theoretical Study ◽  
Heat Exchanger Tube ◽  
Frost Layer ◽  
Theoretical Results ◽  
Exchanger Tube

The paper presents a combined experimental and theoretical study on the heat, mass, and momentum transfer in a frosted heat exchanger tube. Experimental evidence suggests that the behavior of the frosted tube is largely determined by the surface roughness of the frost layer. Based on simple stability considerations and the well-known rough pipe results of Nikuradse and von Karman, a theory is presented which predicts the frost surface roughness as functions of RePrkkf and the frost thickness. The theoretical results are shown to be in qualitative agreement with observed results. Heat-transfer and pressure drop calculations based on the predicted roughness are also found to be in fair agreement with observed results.

Determination of the stress-strain condition of the heat exchanger tube bundle

1968 ◽  
Vol 4 (6) ◽  
pp. 458-459
Author(s):  
V. M. Dolinskii ◽  
P. S. Marchenko ◽  
G. Ya. Shevchenko ◽  
V. M. Eselev ◽  
L. N. Koptelov
Keyword(s):  
Heat Exchanger ◽  
Tube Bundle ◽  
Strain Condition ◽  
Heat Exchanger Tube ◽  
Stress Strain ◽  
Exchanger Tube

PREDICTION OF HEAT TRANSFER AND PRESSURE DROP IN HELICALLY PERFORATED TWISTED TAPE HEAT EXCHANGER TUBE USING FUZZY LOGIC

2020 ◽  
Vol 19 (1) ◽  
pp. 175-184
Author(s):  
Sunil Kumar ◽  
Robin Thakur ◽  
Neeraj Gandotra ◽  
Sorabh Aggarwal ◽  
Arvind Singhy ◽  
...  
Keyword(s):  
Heat Transfer ◽  
Fuzzy Logic ◽  
Heat Exchanger ◽  
Pressure Drop ◽  
Twisted Tape ◽  
Heat Exchanger Tube ◽  
Exchanger Tube

Research of a heat exchanger tube durability of a phase transition accumulator, working in the composition of NPP

2019 ◽  
Vol 54 (1) ◽  
pp. 63-71
Author(s):  
V.E. Yurin ◽  
◽  
A.B. Moskalenko ◽  
M.A. Murtazov ◽  
◽  
...  
Keyword(s):  
Phase Transition ◽  
Heat Exchanger ◽  
Heat Exchanger Tube ◽  
Exchanger Tube

Numerical simulation of the effect of baffle cut and baffle spacing on shell side heat exchanger performance using CFD

2020 ◽  
Vol 0 (0) ◽  
Author(s):  
Swanand Gaikwad ◽  
Ashish Parmar
Keyword(s):  
Heat Transfer ◽  
Heat Transfer Coefficient ◽  
Heat Exchanger ◽  
Pressure Drop ◽  
Transfer Coefficient ◽  
Numerical Results ◽  
Shell Side ◽  
Tube Heat Exchanger ◽  
Shell And Tube ◽  
Two Parameters

AbstractHeat exchangers possess a significant role in energy transmission and energy generation in most industries. In this work, a three-dimensional simulation has been carried out of a shell and tube heat exchanger (STHX) consisting of segmental baffles. The investigation involves using the commercial code of ANSYS CFX, which incorporates the modeling, meshing, and usage of the Finite Element Method to yield numerical results. Much work is available in the literature regarding the effect of baffle cut and baffle spacing as two different entities, but some uncertainty pertains when we discuss the combination of these two parameters. This study aims to find an appropriate mix of baffle cut and baffle spacing for the efficient functioning of a shell and tube heat exchanger. Two parameters are tested: the baffle cuts at 30, 35, 40% of the shell-inside diameter, and the baffle spacing’s to fit 6,8,10 baffles within the heat exchanger. The numerical results showed the role of the studied parameters on the shell side heat transfer coefficient and the pressure drop in the shell and tube heat exchanger. The investigation shows an increase in the shell side heat transfer coefficient of 13.13% when going from 6 to 8 baffle configuration and a 23.10% acclivity for the change of six baffles to 10, for a specific baffle cut. Evidence also shows a rise in the pressure drop with an increase in the baffle spacing from the ranges of 44–46.79%, which can be controlled by managing the baffle cut provided.

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