Analysing thermal-hydraulic performance and energy efficiency of shell-and-tube heat exchangers with longitudinal flow based on experiment and numerical simulation

Energy ◽  
2020 ◽  
Vol 202 ◽  
pp. 117757 ◽  
Author(s):  
Nianqi Li ◽  
Jian Chen ◽  
Tao Cheng ◽  
Jiří Jaromír Klemeš ◽  
Petar Sabev Varbanov ◽  
...  
Keyword(s):  
Numerical Simulation ◽  
Energy Efficiency ◽  
Heat Exchangers ◽  
Hydraulic Performance ◽  
Longitudinal Flow ◽  
Shell And Tube

scholarly journals An Energy Efficiency Indicator and Grading of Shell-and-Tube Heat Exchangers

2020 ◽  
Vol 721 ◽  
pp. 012047
Author(s):  
Kelei Chen ◽  
Guoli Qi ◽  
Xueming Liu ◽  
Jianfei Zhang ◽  
Zhiguo Qu
Keyword(s):  
Energy Efficiency ◽  
Heat Exchangers ◽  
Energy Efficiency Indicator ◽  
Shell And Tube

scholarly journals Energy Efficiency Evaluation of Industrial Heat Exchangers Based on Fuzzy Matter Element Method

Mechanika ◽  
2020 ◽  
Vol 26 (2) ◽  
pp. 171-176
Author(s):  
Wei Ye
Keyword(s):  
Energy Efficiency ◽  
Energy Consumption ◽  
Heat Exchanger ◽  
Heat Exchangers ◽  
Efficiency Evaluation ◽  
Tube Heat Exchanger ◽  
Shell And Tube ◽  
Energy Efficiency Evaluation ◽  
Whole Life Cycle ◽  
Element Method

According to the energy consumption status of industrial heat exchanger in the whole life cycle, the energy efficiency evaluation index system of industrial heat exchanger is put forward firstly. Secondly, aiming at the complexity and fuzziness of energy consumption of industrial heat exchanger, the energy efficiency evaluation model of industrial heat exchanger based on fuzzy matter-element method is established by using fuzzy matter-element theory and combining the concept of Hemingway schedule. Finally, taking the shell-and-tube heat exchanger as an example, five shell-and-tube heat exchangers with different designs and materials were selected to analyze their energy consumption advantages and disadvantages. Via calculation and analysis, the optimal energy efficiency design of the shell-and-tube heat exchanger was obtained. At the same time, reference opinions were provided for the design and manufacture of the shell-and-tube heat exchanger.

Effect of the Flow Models on the Numerical Simulation of Shell and Tube Heat Exchanger

2014 ◽  
Vol 1008-1009 ◽  
pp. 910-913
Author(s):  
Mei Jin ◽  
Li Zhan ◽  
Guo Xian Yu ◽  
Jian Qi Zhang ◽  
Hong Jiao Liu
Keyword(s):  
Numerical Simulation ◽  
Turbulence Model ◽  
Heat Exchangers ◽  
Heat Dissipation ◽  
Volumetric Flow Rate ◽  
Experimental Result ◽  
Cold Model ◽  
Flow Models ◽  
Tube Heat Exchanger ◽  
Shell And Tube

The effect of the volumetric flow rate on the heat transfer of shell and tube heat exchangers was investigated. Furthermore, a comparison of four flow models using for numerical simulation was discussed to provide improved predictions of turbulent flow in the shell and tube heat exchangers. Four flow models tested were Reynolds stress model, k-ε Standard model, k-ε RNG model and k-ε Realizable model, respectively. Multi reference frame technique was used with Fluent software package. During the numerical simulation, the heat dissipation was shown to be strongly dependent on the choice of turbulence model. Compared with the cold model experimental result, k-ε RNG model was a better turbulence model for the prediction of the heat dissipation in the shell and tube heat exchangers among the four models. Furthermore, the good agreement between the numerical results and the experimental result confirmed the validity of the numerical method.

Numerical Simulation of a Shell-and-Tube Heat Exchanger with Special Form Helical Baffles

2013 ◽  
Vol 860-863 ◽  
pp. 754-757
Author(s):  
Can Zheng ◽  
Fei Wang ◽  
Yong Gang Lei
Keyword(s):  
Numerical Simulation ◽  
Heat Exchanger ◽  
Pressure Drop ◽  
Heat Exchangers ◽  
Shell Side ◽  
Fluid Medium ◽  
Tube Heat Exchanger ◽  
New Type ◽  
Shell And Tube ◽  
Side Flow

A new type of helical baffles heat exchanger is presented in this paper. Comparative study, through numerical simulation, was undertook between the new helical baffles heat exchanger and segmental baffle board heat exchanger in shell side flow and heat exchange characteristics. Fluid medium in the shell side is air. At the same velocity in the same flow conditions, pressure drop of helical baffles heat exchangers fell by an average of 26.8% compared with segmental baffle board heat exchangers, and the unit pressure drop of the heat transfer ratio of helical baffles heat exchanger increased by an average of 40.6%.

New Concepts in Longitudinal Flow Shell and Tube Heat Exchangers

1993 ◽  
pp. 641-652
Author(s):  
J. E. Hesselgreaves ◽  
P. Mercier ◽  
T. Moros ◽  
S. S. Mansur ◽  
M. McCourt
Keyword(s):  
Heat Exchangers ◽  
Longitudinal Flow ◽  
New Concepts ◽  
Shell And Tube

scholarly journals Numerical Simulation of Heat Exchanger for Analyzing the Performance of Parallel and Counter Flow

2021 ◽  
Vol 16 ◽  
pp. 145-152
Author(s):  
Farid Ahmed ◽  
Md Minaruzzaman Sumon ◽  
Muhtasim Fuad ◽  
Ravi Gugulothu ◽  
AS Mollah
Keyword(s):  
Numerical Simulation ◽  
Heat Exchanger ◽  
Pressure Drop ◽  
Heat Exchangers ◽  
Cold Water ◽  
Hot Water ◽  
Shell Side ◽  
Counter Flow ◽  
Tube Heat Exchanger ◽  
Shell And Tube

Heat exchangers are almost used in every industry. Among them, shell and tube heat exchangers are covering around 32% of the total heat exchanger. Numerical simulation of the Computational models is playing an important role for the prototypes including the Heat Exchanger Models for the improvement in modeling. In this study, the CFD analysis of parallel and counter flow shell and tube heat exchanger was performed. Following project, looked into the several aspects and these are the temperature, velocity, and pressure drop and turbulence kinetic energy along with the heat exchanger length. Hot water was placed in tube side and cold water was placed in shell side of the heat exchanger. Shell side cold temperature was increasing along the heat exchanger length. On the other side, tube side hot water temperature was decreasing along the tube length. This effect was more significance in counter flow rather than the parallel flow. Velocity was more fluctuating in the shell side due to presence of the baffles. Also following the same reason, pressure drop was higher in the shell side cold water rather than the tube side hot water. To measure the turbulence effect, turbulence kinetic energy was determined. Turbulence was decreasing first part of the shell and tube heat exchanger. But, it was increasing along through the rest part heat exchanger. All these observations and the outcomes are evaluated and then further analyzed

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