A system for measuring temperature change of solid cross section

A technology for measuring system and solid surface, applied in the field of temperature change measurement, which can solve problems such as limitation of the accuracy of calculation results

Inactive Publication Date: 2016-08-10
SHANDONG JIANZHU UNIV
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  • Abstract
  • Description
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Problems solved by technology

However, the accuracy of the calculation results will also be restricted by whether the described heat transfer problem is comprehensive and accurate and some other factors

Method used

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  • A system for measuring temperature change of solid cross section
  • A system for measuring temperature change of solid cross section
  • A system for measuring temperature change of solid cross section

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Embodiment Construction

[0029] The present invention will be described in further detail below with reference to the accompanying drawings and preferred embodiments.

[0030] see figure 1 and figure 2 , the modified Fourier unsteady thermal conductivity differential equation of the first type of boundary conditions, that is, the analytical solution of the thermal conductivity differential equation when the surface temperature changes at constant velocity. During isokinetic heating or cooling, after a certain period of time, the temperature from the center to the surface of the solid changes at the same rate, so that the temperature difference between the surface and the center remains constant.

[0031] The solution of the Fourier differential equation of thermal conductivity when the surface temperature of different shapes of solid materials changes at constant velocity is as follows:

[0032] 1.1 Infinite tablet

[0033] t = t s ...

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Abstract

The invention discloses a solid section temperature change measurement system. The solid section temperature change measurement system is characterized by comprising a module for intercepting solid surface temperature and time relations, a data fitting module, a fitting data differential module, a parameter input and calculation module and a CCT (continuous cooling transformation) and TTT (time temperature transformation) curve superposition module. Influences of internal heat sources, quality, physical properties and ingredients of solids on heat transfer are embodied on temperature time curves of the solid surfaces classified according to shape, and different temperature moments form a cooling curve from the measured section center parts of the solids to the random surface positions by measuring surface temperature time curves of to-be-measured objects, obtaining temperature change speeds of the object surfaces and calculating moments with the same temperature as the surfaces from the center parts of the measured solids to the random surface positions. The complex calculation process is simplified while calculation accuracy is not reduced, and the goal of practicality is achieved simultaneously.

Description

technical field [0001] The invention relates to the technical field of temperature change measurement, in particular to a solid cross-section temperature change measurement system. Background technique [0002] The research methods of heat transfer problems can be roughly divided into two categories: theoretical research methods and experimental research methods. The theoretical research methods can be divided into mathematical analysis methods and numerical calculation solutions. [0003] Numerical calculation solution is to write the differential equations or integral equations describing the heat transfer problem into some algebraic equations that can be calculated by the computer through mathematical means. However, the accuracy of the calculation results will also be restricted by whether the described heat transfer problem is comprehensive and accurate and some other factors. [0004] The experimental research method is still the main method to study heat transfer pr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F19/00
Inventor 徐勇王献忠孙德明张保议王志刚李永胜吴俊平
Owner SHANDONG JIANZHU UNIV
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