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

Turbulence intensified heat transfer device for dynamically controlling cylindrical vortex generator and working method of turbulence intensified heat transfer device

A vortex generator, dynamic control technology, applied in the direction of heat transfer modification, heat exchange equipment, lighting and heating equipment, etc., can solve the problems of changing the vortex generator, can not meet the requirements, energy consumption, etc., to reduce the vibration frequency and/or amplitude, improve overall heat transfer performance, enhance the effect of fluid disturbance

Active Publication Date: 2020-07-10
NANJING UNIV OF SCI & TECH
View PDF9 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the dynamic change of the heat flux, the fixed vortex generator can no longer meet the demand, and because the fixed vortex generator cannot dynamically change the structure of the vortex generator with the change of the heat flux, the flow generates many unnecessary energy consumption
For example, when the heat flux density is reduced, if a larger size vortex generator is used, although the heat exchange capacity meets the requirements, it will cause serious energy loss at the same time.
Otherwise, the requirements cannot be met

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
  • Turbulence intensified heat transfer device for dynamically controlling cylindrical vortex generator and working method of turbulence intensified heat transfer device
  • Turbulence intensified heat transfer device for dynamically controlling cylindrical vortex generator and working method of turbulence intensified heat transfer device
  • Turbulence intensified heat transfer device for dynamically controlling cylindrical vortex generator and working method of turbulence intensified heat transfer device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0023] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0024] The dynamic control turbulence generator heat transfer enhancement structure of the heat exchanger for high-intensity heat exchange with dynamic change of heat flux of the present invention is based on the traditional fixed vortex generator structure combined with the existing turbulent heat transfer principle And the heat transfer structure improved by the principle of dynamic mechanical control.

[0025] combine Figure 1-3 , a turbulence enhanced heat transfer device for dynamically controlling a cylindrical vortex generator, comprising a cylindrical vortex generator 1, a sealing device 4 and a dynamic control structure, the cylindrical vortex generator 1 includes a plurality of rows of cylinders arranged on a heat transfer surface , the number of cylinders in each row is at least one, the bottom of each cylinder is connected to a ...

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

PropertyMeasurementUnit
Diameteraaaaaaaaaa
Heightaaaaaaaaaa
Login to View More

Abstract

The invention discloses a turbulence intensified heat transfer device for dynamically controlling a cylindrical vortex generator and a working method of the turbulence intensified heat transfer device. The device comprises the cylindrical vortex generator, sealing devices and dynamic control structures, wherein the cylindrical vortex generator comprises a plurality of rows of cylinders arranged ona heat transfer surface; the bottom of each cylinder is connected with one dynamic control structure arranged in the heat transfer device; one sealing device is arranged between each cylinder and theheat transfer surface; and the dynamic control structures can control the cylinders to stretch out and draw back from the heat transfer surface. The dynamic vortex control technology is adopted for achieving dynamic control over changes of flowing vortexes, dynamic mechanical control and flowing heat transfer are combined, the included angle between the flowing direction and the fluid temperaturegradient is reduced through a dynamic turbulent flow effect, and therefore the convection heat exchange capacity is effectively improved, the phenomenon of local heat transfer deterioration can be avoided, and the dynamic control capability is high.

Description

technical field [0001] The invention belongs to the technical field of heat exchangers, and in particular relates to a turbulence enhanced heat transfer device for dynamically controlling a cylindrical vortex generator and a working method thereof. Background technique [0002] A heat exchanger is a device that transfers heat from one heat-carrying medium to another. All walks of life have different requirements for heat exchanger performance, so various heat exchanger structures are designed and applied. The field of hypersonic engines has a great demand for high-efficiency heat exchangers. [0003] In the field of aeroengines, different positions of the engine room wall may suffer from extremely high dynamic heat flux density. The traditional method of improving heat transfer capacity is to use fixed vortex generators to enhance heat transfer capacity. However, due to the dynamic change of the heat flux, the fixed vortex generator can no longer meet the demand, and becau...

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
IPC IPC(8): F28F13/12F28F27/00
CPCF28F13/12F28F27/00
Inventor 张小兵谢鹏勇
Owner NANJING UNIV OF SCI & TECH
Features
  • Generate Ideas
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More