Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Thermophysical parameter calculation method and homogenization design method of plate-fin heat exchanger

A technology for plate-fin heat exchangers and thermophysical parameters, which is applied in calculation, instrumentation, electrical digital data processing, etc., can solve problems such as difficult to use, complicated and cumbersome methods, and affecting the development of plate-fin heat exchangers

Active Publication Date: 2017-01-25
CHINA UNIV OF PETROLEUM (EAST CHINA)
View PDF5 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the periodic and complex structure of the plate-fin heat exchanger, it is difficult to perform finite element simulation of the plate-fin heat exchanger. Using finite element analysis software to design the high-temperature strength of plate-fin heat exchangers has seriously affected the development of plate-fin heat exchangers

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Thermophysical parameter calculation method and homogenization design method of plate-fin heat exchanger
  • Thermophysical parameter calculation method and homogenization design method of plate-fin heat exchanger
  • Thermophysical parameter calculation method and homogenization design method of plate-fin heat exchanger

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0083] Figure 1~3 It is the best embodiment of the present invention, below in conjunction with attached Figure 1~3 The present invention will be further described.

[0084] Such as Figure 1~2 As shown: the core of the plate-fin heat exchanger includes a plate 1 and a fin 2, and a fin 2 is provided between each two adjacent plates 1. , so that a plurality of flow channels 3 are formed between every two adjacent plates 1, and the cross-section of the flow channels 3 is an isosceles trapezoid.

[0085] The plate 1 and fin 2 of the core of the plate-fin heat exchanger are brazed and have a compact structure. Unlike conventional homogeneous materials, the core of the plate-fin heat exchanger has the characteristics of a periodic porous structure. Due to the periodicity and complexity of the core structure of the heat exchanger, it is difficult to conduct finite element analysis directly, and it is necessary to use the equivalent homogenization method for finite element analy...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a thermophysical parameter calculation method and a homogenization design method of a plate-fin heat exchanger, and belongs to the technical field of heat exchangers. The thermophysical parameter calculation method is characterized by comprising the following steps: step a, dividing a plate fin structure into a plurality of plate fin base cells with the same shape; step b, enabling the plate fin base cells to be equivalent to a uniform solid plate; and step c, acquiring equivalent thermophysical parameters of the plate fin base cells, thus acquiring equivalent thermophysical parameters of a whole plate-fin heat exchanger core body. With adoption of the thermophysical parameter calculation method of the plate-fin heat exchanger, the problem in the prior art that a process is tedious as equivalent thermophysical parameters can only be acquired through experiments or finite element simulation is solved; and a calculation result can be used for high-temperature strength design of the plate-fin heat exchanger, and the design process is simplified; according to the homogenization design method of the plate-fin heat exchanger, effective service life prediction can be carried out on the plate-fin heat exchanger serving under high temperature and alternating load, and an effective method is supplied for high temperature design of the plate-fin heat exchanger.

Description

technical field [0001] The invention relates to a thermal physical property parameter calculation method and a homogenization design method of a plate-fin heat exchanger, belonging to the technical field of heat exchangers. Background technique [0002] With the development of science and technology, more and more energy is consumed, so energy conservation and emission reduction and improvement of energy utilization have become the focus of attention. Heat exchange equipment, as a core member of the high-temperature system, not only requires efficient heat exchange performance, but also requires a compact structure. However, most of the existing heat exchange equipment are shell-and-tube heat exchangers, which occupy a large volume and have low heat exchange efficiency, making it difficult to meet the requirements in the fields of aerospace, high-temperature gas-cooled reactors, and gas turbines. The plate-fin heat exchanger has the characteristics of compact structure and ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): G06F19/00
CPCG16Z99/00
Inventor 蒋文春葛磊张玉财巩建鸣涂善东赵慧琴
Owner CHINA UNIV OF PETROLEUM (EAST CHINA)
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products