Measuring system and method for interface heating power coupling heat transfer coefficients

A technology of heat transfer coefficient and thermo-mechanical coupling, applied in the field of heat transfer measurement, can solve the problems of small force multiplier of pressure device, measurement error, limited sample size, etc., to achieve the effect of low energy consumption, high measurement accuracy and convenient operation

Inactive Publication Date: 2012-10-03
CHONGQING UNIV
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Problems solved by technology

However, in this method, the force multiplier of the pressure device is small, which limits the size of the sample and easily brings large errors to the measurement.

Method used

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  • Measuring system and method for interface heating power coupling heat transfer coefficients
  • Measuring system and method for interface heating power coupling heat transfer coefficients

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Embodiment Construction

[0031] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0032] figure 1 It is a structural schematic diagram of the interface thermomechanical coupling heat transfer coefficient measurement system of the present invention, figure 2 It is a schematic diagram of the structure of the pulley booster mechanism, as shown in the figure. The interface thermomechanical coupling heat transfer coefficient measurement system includes a frame 1, a clamping device, a booster device, a weight 19, a heating device and a measuring device.

[0033] Wherein, the clamping device includes a heating chuck I3 and a heating chuck II4 which can be heated by a heating device. The heating chuck II4 is placed on the workbench of the frame 1, and the bottom of the heating chuck II4 is provided with a cushion block 28. In the present embodiment, the heating chuck I3 is located directly above the heating chuck II4, a...

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Abstract

The invention discloses a measuring system for interface heating power coupling heat transfer coefficients, which comprises a clamping device, a reinforced device, a weight, a heating device and a measuring device, wherein the clamping device comprises heating chucks I and II for installing a test sample to be measured, and clamping surfaces of the two chucks are arranged opposite to each other; the reinforced device comprises a hydraulic reinforced mechanism and a pulley reinforced mechanism and is used for providing pressure for the test sample to be measured; the heating device is used fortransferring heat to the heating chunks I and II; and the measuring device comprises a test sample temperature measuring probe, mutual inductors I and II and a recording analytical instrument. Simultaneously, the invention also discloses a measuring method for the interface heating power coupling heat transfer coefficients. In the system and the method for the interface heating power coupling heat transfer coefficients, output pressure can be amplified by adjusting the reinforced times of two-stage reinforced mechanisms, namely the pulley reinforced mechanism and the hydraulic reinforced mechanism according to requirements, so the measuring requirements of the heat transfer coefficients of contact interfaces can be met under the conditions of different materials, pressures and contact surfaces.

Description

technical field [0001] The invention relates to the technical field of heat transfer measurement, in particular to an interface thermomechanical coupling heat transfer coefficient measurement system and method. Background technique [0002] In recent years, with the development of virtual technology, computer numerical simulation technology has entered the foundry industry. However, the computer numerical simulation technology of the casting process has a strong dependence on the boundary conditions, and the change of the boundary conditions may lead to great changes in the calculation results, which directly affects the subsequent analysis and research, especially in the interface heat transfer coefficient This effect is more obvious in numerical simulation problems as boundary conditions. At the same time, the heat exchange between the mold and the casting directly affects the distribution of the temperature field, and then affects the life of the mold and the forming qua...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N25/18
Inventor 赵建华宋刚王亚军韩二静周芝龙
Owner CHONGQING UNIV
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