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Centralization method for representing behavior uniformity of droplet clusters in direct contact boiling heat exchange process

A technology of boiling heat transfer and droplet group, which is applied in image data processing, instrumentation, electrical digital data processing, etc., can solve the problems of few practical applications and complex devices, and achieve the effects of reducing economic losses and measuring uniformity accurately

Inactive Publication Date: 2016-06-08
KUNMING UNIV OF SCI & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, the optical method investigates the mixing time as a whole, the measurement method is simple, and the particle size distribution of the pharmaceutical ingredients is measured by the laser diffraction method, but due to the complexity of the device, there are few practical applications

Method used

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  • Centralization method for representing behavior uniformity of droplet clusters in direct contact boiling heat exchange process
  • Centralization method for representing behavior uniformity of droplet clusters in direct contact boiling heat exchange process
  • Centralization method for representing behavior uniformity of droplet clusters in direct contact boiling heat exchange process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] (1) Test design and test platform construction

[0028] In this example, the ORC direct-contact steam generator test platform was built, and four test parameters were selected for the orthogonal test, namely, the liquid level of the continuous phase heat transfer oil in the ORC direct-contact evaporator, the initial heat transfer temperature difference, and the working fluid flow rate and heat transfer oil flow rate. There are three variables for each parameter; according to the orthogonal test table, this test uses an orthogonal test with 4 factors and 3 levels. See Table 1 for the L9(34) orthogonal test factor level table and Table 2 for the experimental design scheme.

[0029] Table 1

[0030]

[0031] Table 2

[0032]

[0033] (2) Acquisition of behavior pattern of droplet group

[0034] During the test, it was observed through the visual window that the heat transfer process of the dispersed phase droplet group in the continuous phase heat transfer oil pre...

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Abstract

The invention discloses a centralization method for representing behavior uniformity of droplet clusters in the direct contact boiling heat exchange process and belongs to the technical field of metallurgical energy engineering. According to the method, the behavior uniformity of the droplet clusters in the direct contact boiling heat exchange process is represented based on a digital image processing technology and a centralization deviation concept in a uniform experiment design theory, and the method is mainly applied to representing the behavior characteristics of the droplet clusters in the direct contact boiling heat exchange process and theoretically guiding design of process parameters. The method is simple and convenient and high in practical value, and a reliable and practical method is provided for representing behavior characteristics of droplets in chemical engineering and metallurgy devices and guiding design of chemical reactors.

Description

technical field [0001] The invention relates to a centralized method for characterizing the uniformity of droplet group behavior in the direct contact boiling heat transfer process, belonging to the technical field of metallurgical energy engineering. Background technique [0002] Whether it is in direct contact heat transfer or traditional heat transfer methods, the study of fluid flow patterns in the heat transfer process has always been a difficult problem. In the direct contact heat transfer process, the microscopic phenomena such as the formation, growth, detachment and movement of individual bubbles develop into the boiling heat transfer process of the macroscopic movement of the droplet group, and the mutual interference and influence between the droplets adds complexity and With the diversity and randomness, it is more difficult to study the relationship between flow characteristics and heat transfer mechanism. Research in the field of flow pattern recognition or mu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/50G06T7/00
CPCG06T7/0004G06T2207/10016G06F2119/18G06F30/17
Inventor 徐建新肖清泰王华
Owner KUNMING UNIV OF SCI & TECH
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