A packing with a plate heat-exchanger for an ammonia synthesis column

1981 ◽  
Vol 17 (4) ◽  
pp. 173-174
Author(s):  
Yu. G. Obolentsev ◽  
L. L. Tovazhnyanskii ◽  
A. T. Posmyk ◽  
Ya. S. Teplitskii ◽  
R. R. Khabibullin ◽  
...  
Keyword(s):  
Heat Exchanger ◽  
Ammonia Synthesis ◽  
Plate Heat Exchanger ◽  
Plate Heat ◽  
Synthesis Column

scholarly journals Optimal Design of Welded Plate Heat Exchanger for Ammonia Synthesis Column: An Experimental Study with Mathematical Optimisation

Energies ◽  
2020 ◽  
Vol 13 (11) ◽  
pp. 2847 ◽  
Author(s):  
Leonid Tovazhnyanskyy ◽  
Jiří Jaromir Klemeš ◽  
Petro Kapustenko ◽  
Olga Arsenyeva ◽  
Olexandr Perevertaylenko ◽  
...  
Keyword(s):  
Heat Transfer ◽  
Heat Exchanger ◽  
Optimal Design ◽  
Ammonia Synthesis ◽  
Plate Heat Exchanger ◽  
Tubular Heat Exchanger ◽  
Plate Heat ◽  
World Energy ◽  
Synthesis Column ◽  
Mathematical Optimisation

The production of ammonia, consuming up to 5% of natural gas global production, accounts for about 2% of world energy. Worldwide, the Haber–Bosch process is the mainly used method of ammonia catalytic synthesis, involving temperatures up to 600 °C and pressures up to 32 MPa. In this paper, the results of the development and study of the special welded construction of plate heat exchanger (WPHE) for a column of ammonia synthesis are presented. The heat transfer and hydraulic performance of developed WPHE are investigated on a one-pass model in laboratory conditions. An equation for the relation between heat transfer effectiveness and the number of heat transfer units is proposed. A mathematical model of multi-pass WPHE is developed using these results. The validity of this model is confirmed by results of industrial tests performed with the prototype WPHE installed in operating column of ammonia synthesis at temperatures about 500 °C and pressure about 32 MPa. The tests confirmed the reliability of WPHE and its efficiency compared to a tubular heat exchanger. A method of optimal design of WPHE that allows finding the optimal height of corrugations and the number of passes in WPHE for specified conditions of operation is developed.

Heat transfer in the plate heat exchanger of an ammonia-synthesis column

1982 ◽  
Vol 18 (5) ◽  
pp. 204-207
Author(s):  
Yu. G. Obolentsev ◽  
O. A. Korobchanskii ◽  
L. L. Tovazhnyanskii ◽  
M. S. Chus' ◽  
Ya. S. Teplitskii
Keyword(s):  
Heat Transfer ◽  
Heat Exchanger ◽  
Ammonia Synthesis ◽  
Plate Heat Exchanger ◽  
Plate Heat ◽  
Synthesis Column

OPTIMUM DESIGN OF GASKET PLATE HEAT EXCHANGER USING MULTIMODAL GENETIC ALGORITHM

2013 ◽  
Vol 44 (8) ◽  
pp. 761-789 ◽  
Author(s):  
Farzaneh Hajabdollahi ◽  
Zahra Hajabdollahi ◽  
Hassan Hajabdollahi
Keyword(s):  
Genetic Algorithm ◽  
Heat Exchanger ◽  
Optimum Design ◽  
Plate Heat Exchanger ◽  
Plate Heat

CONVECTION SCALING ON MODIFIED SURFACES OF PLATE HEAT EXCHANGER IN 80°C SIMULATED GEOTHERMAL WATER

2020 ◽  
Vol 8 (2) ◽  
pp. 117-133
Author(s):  
Fan Zhang ◽  
Weidong Zhou ◽  
Muhammad Zafar Ullah ◽  
Yongli Ma ◽  
Mingyan Liu
Keyword(s):  
Heat Exchanger ◽  
Plate Heat Exchanger ◽  
Geothermal Water ◽  
Plate Heat ◽  
Modified Surfaces

COMPUTER SIMULATION OF FLOW IN CORRUGATED CHANNEL OF PLATE HEAT EXCHANGER

2020 ◽  
pp. 51-58
Author(s):  
Л. А. Кущев ◽  
В. Н. Мелькумов ◽  
Н. Ю. Саввин
Keyword(s):  
Computer Simulation ◽  
Heat Exchanger ◽  
Heat Exchange ◽  
High Speed ◽  
Exchange Process ◽  
Plate Heat Exchanger ◽  
System Stability ◽  
Plate Heat ◽  
Corrugated Channel ◽  
Heat Exchange Process

Постановка задачи. Рассматривается теплообменный процесс, протекающий в модифицированном гофрированном межпластинном канале интенсифицированного пластинчатого теплообменного аппарата с повышенной турбулизацией теплоносителя. Необходимо разработать компьютерную модель движения теплоносителя в диапазоне скоростей 0,1-1,5 м/с и определить коэффициент турбулизации пластинчатого теплообменника. Результаты. Приведены результаты компьютерного моделирования движения теплоносителя в межпластинном гофрированном канале оригинального пластинчатого теплообменного аппарата с помощью программного комплекса Аnsys . Определены критерии устойчивости системы. Выполнено 3 D -моделирование канала, образуемого гофрированными пластинами. При исследовании процесса турбулизации были рассмотрены несколько скоростных режимов движения теплоносителя. Определен коэффициент турбулизации Tu, %. Выводы. В результате компьютерного моделирования установлено увеличение коэффициента теплопередачи К, Вт/(м ℃ ) за счет повышенной турбулизации потока, что приводит к снижению металлоемкости и уменьшению стоимости теплообменного оборудования. Statement of the problem. The heat exchange process occurring in a modified corrugated interplate channel of an intensified plate heat exchanger with an increased turbulence of the heat carrier is discussed. A computer model of the coolant movement in the speed range of 0.1-1.5 m/s is developed and the turbulence coefficient of the plate heat exchanger is determined. Results. The article presents the results of computer modeling of the coolant movement in the interplate corrugated channel of the original plate heat exchanger using the Ansys software package. The criteria of system stability are defined. 3D modeling of the channel formed by corrugated plates is performed. In the study of the process of turbulence several high-speed modes of movement of the coolant were considered. The turbulence coefficient Tu, % is determined. Conclusions. As a result of computer simulation, an increase in the heat transfer coefficient K, W/(m ℃) was found due to an increased turbulization of the flow, which leads to a decrease in metal consumption and a decrease in the cost of heat exchange equipment.

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