Experimental device capable of accurately measuring high-pressure volume change rate of phase change material

A phase change material and experimental device technology, applied in the investigation phase/state change and other directions, can solve the problems of large measurement error, low precision, and inability to perform high-pressure measurement, and achieve the effect of eliminating measurement errors and accurate measurement.

Pending Publication Date: 2022-05-06
TIANJIN UNIV
View PDF0 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The main purpose of the present invention is to solve the problems of large measurement errors and low precision of the high-pressure volume change rate measurement device, which can be used to solve the problem that the existing conventional experiment

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Experimental device capable of accurately measuring high-pressure volume change rate of phase change material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0043] 1. Manufacture and assemble various systems.

[0044] (1) Phase change material exhaust system manufacturing and assembly process: such as figure 1 As shown, manufacture the tank body of the vacuum tank 11 with a diameter of 400 mm, a depth of 400 mm, and a thickness of 5 mm, and the material of the tank body is stainless steel; manufacture a transparent top cover of the acrylic vacuum tank 11 with a diameter of 400 mm and a thickness of 5 mm, and the top cover is attached with an air outlet connection Threaded port, air inlet connection threaded port and pressure gauge 12, the top cover and the tank body are connected with elastic rubber rings. Prepare a vacuum pump 13, two ball valves and several sections of PU air pipes, connect the vacuum pump 13 and the first ball valve 14 to the air outlet of the vacuum tank 11 in turn by means of pneumatic joints, and connect the second ball valve 15 to the air inlet of the vacuum tank 11.

[0045] (2) Manufacturing and assembly...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

PropertyMeasurementUnit
Phase transition temperatureaaaaaaaaaa
Login to view more

Abstract

The invention discloses an experimental device capable of accurately measuring the high-pressure volume change rate of a phase-change material. The experimental device comprises a phase-change material exhaust system, a phase-change heat exchange system, a displacement monitoring system, a pressure regulation and control system and a temperature control system. The phase-change material exhaust system comprises a vacuum pump and a vacuum tank; the phase-change heat exchange system is a part for containing a phase-change material to be tested; the displacement measuring system mainly comprises a piston rod and a laser displacement sensor; the pressure regulation and control system mainly comprises a pressure gauge, an overflow valve, a high-pressure oil cavity, a high-pressure oil pump and a high-pressure oil storage tank; the temperature control system mainly comprises a constant-temperature water tank, an electric heater, a compression refrigerator and a PID temperature controller. The high-pressure oil cavity and the overflow valve are used in cooperation to achieve stable pressure control, then the constant-pressure phase change process of the phase change material is achieved, meanwhile, measurement errors caused by the fact that the volume of high-pressure oil changes along with pressure are completely eliminated through measurement of the volume change rate, and finally accurate measurement of the volume change rate of the phase change material under different pressures is completed.

Description

technical field [0001] The invention relates to a heat storage and energy conversion system, in particular to an experimental device capable of accurately measuring the volume change rate of a phase change material under different pressures. Background technique [0002] With the massive consumption of fossil energy and the continuous increase of carbon emissions, renewable energy, including solar energy, wind energy, ocean temperature difference energy, and tidal energy, has received more and more attention. Renewable energy has the advantages of huge reserves, clean and pollution-free, and recyclable use. Therefore, the effective collection, conversion, storage, and utilization of new energy can not only reduce the dependence on traditional energy, but also achieve sustainable energy development. . A phase change material (PCM) refers to a substance that can change its state and absorb or provide latent heat under the condition of endothermic or exothermic. The process of...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): G01N25/04
CPCG01N25/04
Inventor 卫海桥王士铎潘家营李醒飞徐佳毅
Owner TIANJIN UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap