Obtaining method of automobile passenger compartment cooling rate

A cooling rate and acquisition method technology, applied in special data processing applications, instruments, electrical digital data processing, etc., can solve the problems that there is no way to accurately quantify the temperature cooling rate value, and there is no way to fully consider various factors. Achieve good practical effect

Inactive Publication Date: 2016-06-15
SHANGHAI UNIV OF ENG SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method is simple and fast, but has great disadvantages. The temperature cooling rate value in the passenger compartment estimated based on experience cannot fully consider various factors that affect the heat load. At the same time, the value estimated based on experience cannot be accurately calculated. Quantify

Method used

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  • Obtaining method of automobile passenger compartment cooling rate
  • Obtaining method of automobile passenger compartment cooling rate
  • Obtaining method of automobile passenger compartment cooling rate

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0029] Such as figure 1 As shown, a method for obtaining the cooling rate of the passenger compartment of an automobile, the method comprises the following steps:

[0030] Execute step 1 to build a physical model of the passenger compartment;

[0031] Execute step 2 to set the boundary conditions of the passenger cabin air conditioner inlet;

[0032] Execute step 3 to simulate the thermal flow field, and record the temperature at the initial moment of the simulation as T 0 , the temperature in thermal equilibrium state is T n And the time interval t between the initial moment of the simulation and the moment of entering the thermal equilibrium state;

[0033] Execute step 4 to obtain the cooling rate v T , cooling rate v T Obtained according to the following formula:

[0034] v T = T n - T 0 ...

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Abstract

The invention relates to an obtaining method of the automobile passenger compartment cooling rate. The method comprises the following steps that 1, a passenger compartment physical model is built; 2, a passenger compartment air conditioning entrance boundary condition is set; 3, heat flow field simulation is conducted, the temperature of initial time of simulation is recorded to be T[0], the temperature in a heat balance state is recorded to be T[n], and a time interval between the initial time of simulation and the time entering the heat balance state is recorded to be t; 4, the cooling rate v[T] is obtained, and the cooling rate v[T] is obtained according to the formula in the description. Compared with the prior art, the obtaining method of the automobile passenger compartment cooling rate has the advantages of being simple in method and more accurate in obtained cooling rate, and better practical value is achieved.

Description

technical field [0001] The invention relates to a method for obtaining a cooling rate, in particular to a method for obtaining a cooling rate for an automobile passenger compartment. Background technique [0002] In summer, the ambient temperature outside the car is high, and the intensity of solar radiation is high, so the temperature inside the car will be very high when the car is running. In order to maintain a certain level of comfort for the driver and passengers in the vehicle, the vehicle needs to be installed with an air conditioning system to cool down, so that the temperature in the passenger compartment can be kept at a relatively low temperature. Different air-conditioning systems have different refrigerating capacities. Due to the differences in the vehicle itself and the operating environment, the cooling rate of the temperature in the passenger compartment is also different for different types of vehicles. Therefore, determining the rate at which the tempera...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50
CPCG06F30/15G06F30/20G06F2119/08
Inventor 吴长水何良龚元明周建鹏
Owner SHANGHAI UNIV OF ENG SCI
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