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A heat and mass exchange enhanced structure and design method thereof

A technology for strengthening structure and heat and mass exchange, applied in the field of heat and mass transfer, can solve the problems affecting the economy, safety and reliability of the system, affecting the comprehensive heat and mass transfer efficiency of the system, etc. Heat and mass transfer effect, the effect of strengthening the heat and mass transfer process

Active Publication Date: 2018-12-07
XI AN JIAOTONG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The increase of flow resistance will greatly affect the comprehensive heat and mass transfer efficiency of the system, and then affect the economy, safety and reliability of the system

Method used

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  • A heat and mass exchange enhanced structure and design method thereof
  • A heat and mass exchange enhanced structure and design method thereof
  • A heat and mass exchange enhanced structure and design method thereof

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Embodiment Construction

[0035] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0036] see Figure 1 to Figure 5 As shown, a heat and mass exchange strengthening structure of the present invention, that is, a flow control structure with a self-jet, is composed of a convex flow control structure matrix 1 and a self-jet channel 2 penetrating through it, and the self-jet channel 2 is connected to the Areas such as the main stream of flow and the wake of flow control structures. It can be applied to the heat and mass transfer process of various working fluids in the tube or outside the tube of channels of various sizes.

[0037] In the conventional case of arranging the convex flow control structure matrix 1 for heat and mass transfer, the fluid flow structure is affected by the flow control structure and working conditions (such as flow state, working fluid, channel shape and arrangement position, etc.), which in turn affect...

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Abstract

The invention discloses a heat and mass transfer enhancement structure and a design method thereof. The heat and mass transfer enhancement structure comprises a flow control structure matrix, self-jet channels and a flow channel, wherein the flow control structure matrix adopts a bulged structure and is arranged on the inner or outer wall of the flow channel; the self-jet channels through which incoming main flow and an outlet position are connected are distributed in the flow control structure matrix in a penetrating manner; and the outlet position is the boundary of the core area of separating vortex or corner vortex and the flow control structure matrix or the boundary of the core area of wake and the flow control structure matrix. As a flow control structure with a self-jet function is adopted, the increase of flow resistance is smaller while the heat exchange performance is improved, further, the comprehensive heat and mass transfer efficiency of the channels can be greatly improved, accordingly, the equipment size is reduced and the economical efficiency and the safe reliability are improved.

Description

technical field [0001] The invention belongs to the field of heat and mass transfer in industries such as energy power, petrochemical industry, transportation and aerospace, and particularly relates to a heat and mass exchange strengthening structure. Background technique [0002] Many industrial fields, such as energy, transportation, microelectronics, chemical industry, spacecraft thermal control and manufacturing, etc., involve the process of energy and mass transfer, in which heat and mass exchange equipment plays a key role. With the rapid development of science and technology and the increasingly prominent energy problems, the load of heat and mass exchange equipment is gradually increasing, which puts forward higher requirements for system efficiency. Therefore, enhanced heat and mass transfer technology is receiving more and more attention from academia and engineering attention. [0003] The use of flow control structures, such as ball-and-socket, spherical convex,...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F28F13/02F28F13/12
CPCF28F13/02F28F13/12
Inventor 李平张荻谢永慧
Owner XI AN JIAOTONG UNIV
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