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Method for testing performance of phase transition heat accumulation unit

A technology of phase change heat storage and testing method, applied in the direction of material thermal development, etc., can solve the problems of lower heat storage density, no consideration of phase change heat transfer characteristics, weight increase, etc., to achieve the effect of convenient operation

Inactive Publication Date: 2018-04-06
成都市鑫裕华科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, these heat transfer enhancement measures do not consider the characteristics of the phase change heat transfer itself. While enhancing the phase change heat transfer, some other problems often appear, such as the reduction of the heat storage density, the volume and weight of the heat storage device. increase etc.

Method used

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  • Method for testing performance of phase transition heat accumulation unit
  • Method for testing performance of phase transition heat accumulation unit
  • Method for testing performance of phase transition heat accumulation unit

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A performance test method for a phase change heat storage device, using a performance test system for a phase change heat storage device to test the performance of the heat storage device 11 .

[0031] Such as Figure 5 As shown, the performance testing system of the phase change thermal storage device 11 includes a box body surrounded by a plurality of heat preservation boards 8 to form a rectangular inner cavity, and a PID temperature control system and a temperature measurement system respectively installed on the box body. The temperature control system includes a heating plate 1 connected by a signal line, an AC contactor 2, a temperature control instrument 3, and a temperature sensing probe 4. The temperature control instrument 3 installed outside the box is connected to a vertical panel in the inner cavity The heating plate 1 on the straight wall, the output end of the temperature sensing probe 4 used to monitor the temperature of the heating plate 1 is connected...

Embodiment 2

[0047] In this embodiment, the heat storage device 11 with a rectangular cavity is taken as an example. The inner chamber of the performance testing device is exactly equivalent to the outer contour of the rectangular cavity heat storage device 11 to be performance tested.

[0048] Such as Figure 5 As shown, the rectangular cavity heat storage device 11 and the left side wall of the box are provided with a heating plate 1 as the sole heat source. At this time, the heating plate 1 is a rectangular plate and just coincides with the left side wall of the box body.

[0049] Such as figure 2 , image 3 As shown, take the width direction of the rectangular cavity heat storage device 11 as the X axis, the height direction of the rectangular cavity heat storage device 11 as the Y axis, and the length direction of the rectangular cavity heat storage device 11 as the Z axis. The origin in the figure represents the distribution position of the thermocouple 5, that is, the temperatu...

Embodiment 3

[0052] A method for testing the performance of a phase-change heat storage device. The heat storage device 11 is placed in the inner cavity, which includes a box body surrounded by a plurality of insulation boards 8 to form a rectangular inner cavity, and a PID temperature control system and a measurement system respectively installed on the box body. temperature system, the PID temperature control system includes a heating plate 1 connected by a signal line, an AC contactor 2, a temperature control instrument 3, and a temperature sensing probe 4, and the temperature control instrument 3 installed outside the box is connected by an AC contactor 2 The heating plate 1 is arranged on a vertical wall of the inner cavity, the output end of the temperature sensing probe 4 used to monitor the temperature of the heating plate 1 is connected to the temperature control instrument 3, and the input end of the temperature measurement system is fixed on the heat preservation plate 8 And it i...

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Abstract

The performance test method of a phase change heat storage device provided by the present invention uses a phase change heat storage device performance test system to test the performance of the heat storage device, specifically refers to operating in an environment with a relatively constant temperature. The material is packaged into the heat storage device, and then the heat source is installed and insulated, and then the single-point temperature change test and the phase interface distribution test are carried out respectively. The invention is easy to operate, and can perform performance test on the heat storage device packaged with phase change materials and record the data as an important reference index for later research.

Description

technical field [0001] The invention relates to the field of performance testing equipment, in particular to a performance testing method of a phase change heat storage device. Background technique [0002] The phase change heat storage technology realized by material phase change has become the most promising thermal energy storage method due to its advantages of high heat storage density per unit volume, constant temperature in the heat storage and discharge process, and wide phase change temperature. Moreover, this technology can also be widely used in many engineering fields, such as solar energy utilization, industrial waste (waste) heat recovery, power peak shaving and valley filling, electronic device cooling, industrial and civil buildings, and energy saving of air conditioners. [0003] However, phase change heat storage technology generally has a fatal shortcoming, that is, the low thermal conductivity of phase change materials, especially organic materials (usuall...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N25/20
CPCG01N25/20
Inventor 付建军
Owner 成都市鑫裕华科技有限公司
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