Device and method for testing volume deformation of organic phase-change heat storage material
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A technology of phase change heat storage materials and heat storage materials, which is applied in the field of testing devices for volume deformation of organic phase change heat storage materials, and can solve problems such as poor repeatability and low test accuracy
Active Publication Date: 2016-02-24
HARBIN INST OF TECH
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[0004] The present invention aims to solve the problems of low test accuracy and poor repeatability of existing devices and methods, and provides a test device and method for volume deformation of organic phase change heat storage materials
Method used
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specific Embodiment approach 1
[0017] Embodiment 1: In this embodiment, it includes a communication container 10, a water bath heating device 11, a fixed bracket 13 and a laser displacement sensor 12;
[0018] The laser displacement sensor 12 is fixed on a fixed bracket 13, and the communicating container 10 is arranged inside the water bath heating device 11;
[0019] Wherein, the communication container 10 includes an upright round thin tube 1, a horizontally arranged bottom connecting thin tube 2, an upright round thick tube 3, an open thin tube 4, a sealing cover 5, a temperature sensor 6, a rubber plug 7, Plastic sheet 8 and gauze 9;
[0020] The thin round tube 1 and the thick round tube 3 communicate with each other through the thin tube 2 at the bottom; the top of the thick round tube 3 has two holes, wherein one hole is sealed with a sealing cover 5, and the other is sealed with a sealing cover 5. The hole is connected with an open thin tube 4, and the open thin tube 4 is sealed with a rubber stop...
specific Embodiment approach 2
[0024] Embodiment 2: This embodiment differs from Embodiment 1 in that: the diameter of the thin open tube 4 is smaller than the diameter of the round thick tube 3 .
[0025] Other steps and parameters are the same as those in Embodiment 1.
specific Embodiment approach 3
[0026] Embodiment 3: This embodiment differs from Embodiment 1 or Embodiment 2 in that: the height of the thin open tube 4 is 30-50 mm higher than that of the sealing cover 5 .
[0027] Other steps and parameters are the same as those in Embodiment 1 or Embodiment 2.
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Abstract
The invention relates to a device and a method for testing volume deformation of an organic phase-change heat storage material and aims to solve problems of low testing precision and poor repeatability of existing devices and methods. The device comprises a communicating container, a water bath heating device, a fixing support and a laser displacement sensor. The method comprises steps as follows: I, weighing is performed; II, water is injected; III, the whole communicating container is placed in the water bath heating device, the initial temperature T1 of a liquid in the communicating container is recorded by the laser displacement sensor, the laser displacement sensor is fixed right above a thin tube of the communicating container through the fixing support, and the initial distance L1 of a plastic sheet is recorded by the laser displacement sensor; IV, the temperature T2 of the liquid in the communicating container is recorded by a temperature sensor, and the distance L2 of the plastic sheet is tested by the laser displacement sensor; V, the volume change rate of the organic phase-change heat storage material is calculated. The device and the method are applied to the field of organic phase-change heat storage materials.
Description
technical field [0001] The invention relates to a testing device and method for volume deformation of an organic phase change heat storage material. Background technique [0002] With the rapid development of social economy and modern science and technology, more and more attention has been paid to building energy conservation and the improvement of building living comfort, thus promoting the technical development and application of phase change heat storage materials. The so-called phase change heat storage material means that the substance can change state with the temperature of the surrounding environment, and can automatically absorb heat or release the stored heat within a very narrow temperature fluctuation range, so as to control the temperature of the surrounding environment to be relatively stable. Among all kinds of phase change heat storage materials, organic phase change heat storage materials have the advantages of being insoluble in water, high latent heat val...
Claims
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Application Information
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