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Design method of heat dissipation system

A heat dissipation system and design method technology, applied in the field of heat dissipation systems, can solve problems such as simulation accuracy, air volume calculation accuracy to be improved, and heat dissipation system simulation design process complexity, etc., to improve calculation accuracy, improve accuracy, and improve system efficiency Effect

Inactive Publication Date: 2020-09-15
CHINA NORTH VEHICLE RES INST
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Problems solved by technology

The simulation design process of the existing heat dissipation system is complicated, and the simulation accuracy and air volume calculation accuracy need to be improved

Method used

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  • Design method of heat dissipation system
  • Design method of heat dissipation system

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Embodiment Construction

[0023] The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0024] The invention provides a heat dissipation system design method, such as figure 1 As shown, the specific steps of the heat dissipation system design method are as follows:

[0025] Step 1: According to the given heat dissipation system design parameters such as the heat exchange rate Q, etc., the heat dissipation system scheme planning is carried out. The heat dissipation system design mainly includes the radiator 3, the air duct 4, the intake louver 1, the exhaust louver 2 and the fan 5 design, such as figure 2 shown, and according to the formula M=Q / [C P *(△T 1 +△T 2 )] Preliminary estimation of the air volume of the cooling system, where:

[0026] M is the air flow rate (kg / s);

[0027] Q is heat transfer (kW);

[0028] C P Specific heat of air at constant pressure (kJ / kg°C);

[0029] ΔT 1 Air temperature rise caused by heat exchange (°...

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Abstract

The invention provides a design method of a heat dissipation system. The design method includes the steps: introducing cooling air temperature rise caused by fan acting into an empirical formula for calculating the air volume to preliminarily estimate the air volume of the system; on the basis of the air volume, designing a radiator, an air duct, an air inlet shutter, an air outlet shutter and fanheat dissipation system components, building a system three-dimensional model, carrying out CFD flow field simulation calculation, and correcting preliminary design results of all the system components according to the air volume obtained through simulation calculation. According to the desisgn method, the simulation design process is simplified, and the simulation precision and the air volume calculation accuracy are improved.

Description

technical field [0001] The invention relates to the technical field of heat dissipation systems, in particular to a design method for heat dissipation systems. Background technique [0002] The heat dissipation system is an important subsystem of the vehicle chassis. Its function is to dissipate the heat from heat sources such as the engine and transmission to the atmosphere in time, so that the engine and transmission can obtain reliable and efficient thermal conditions. Due to the different design requirements, installation layout and use environment of different types of vehicles, the values ​​of some key parameters in the design of the cooling system are also different, and the design methods also have their own characteristics. According to the characteristics of the vehicle, it is an important research content in the field of heat dissipation system design technology to develop a heat dissipation system design method suitable for the vehicle's own characteristics, and ...

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Application Information

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IPC IPC(8): G06F30/15G06F30/20G06F30/28G06F119/08G06F119/14G06F113/08
CPCG06F30/15G06F30/20G06F30/28G06F2119/08G06F2113/08G06F2119/14
Inventor 张佳卉杨勇李源浩刘洋曹元福刘江权赵春伟
Owner CHINA NORTH VEHICLE RES INST
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