Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Thermal-resistance-varying compensation-type thermal resistance test method

A compensation and thermal resistance technology, applied in the field of thermophysical parameter testing, achieves the effects of high test accuracy, high measurement accuracy and stability, and strong environmental adaptability

Inactive Publication Date: 2017-12-01
QINGDAO UNIV
View PDF5 Cites 10 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the defects of the existing thermal resistance steady-state testing technology, and provide a method for thermal resistance testing using a variable thermal resistance compensation method

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
  • Thermal-resistance-varying compensation-type thermal resistance test method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0020] The technical solution of the present invention will be described in detail below in conjunction with the accompanying drawings, and the content of the present invention will be illustrated by means of the following examples, rather than limiting the scope of the present invention.

[0021] The on-site detection of the thermal resistance of the building envelope provides a reliable basis for evaluating the energy-saving effect of the building, determining the air-conditioning load of the entire space, thermal comfort design, energy-saving design, and air-conditioning system selection. Applying the present invention can carry out the thermal resistance test of building maintenance structure, and the measured object is the wall body of building enclosure structure at this moment, such as figure 1 As shown, the variable thermal resistance compensation thermal resistance test system includes a temperature-controllable heat sink 1, a variable thermal resistance module 2, a he...

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

No PUM Login to View More

Abstract

The invention provides a thermal resistance test system, which includes a temperature-controllable heat sink, a thermal-resistance-varying module, a heat flow sensor, a temperature sensor, and a signal processing and control unit. The system performs a thermal resistance test through a thermal-resistance-varying compensation method; during work, the thermal-resistance-varying module can compensate the system with a heat flow, which is symmetric to a to-be-tested object on the basis of the heat flow sensor, so that heat flow output of the heat flow sensor is zero; and as a result, the thermal resistance value of the to-be-tested object is equal to that of the thermal-resistance-varying module. The compensation method can reduce and eliminate interference and test error, wherein the thermal-resistance-varying module can adapt with different to-be-tested objects having different thermal resistance values by pre-calibrating the varying rule of thermal resistance. The thermal resistance test method and the thermal-resistance-varying compensation method has excellent environment adaptability, short measurement time, high measurement precision and stability and low detection cost, is convenient to install and use on site, and greatly develops the application field of steady-state thermal resistance test methods.

Description

technical field [0001] The invention relates to a thermal resistance testing method, in particular to a thermal resistance testing method of a variable thermal resistance compensation method. It belongs to the field of thermophysical parameter testing. Background technique [0002] There are two parameters that represent the thermal conductivity of a material: thermal conductivity and thermal resistance. Among them, thermal conductivity is used to express the thermal conductivity of a certain material, and thermal resistance is used to express the thermal conductivity of an object. [0003] The thermal resistance steady-state test method based on the thermal resistance principle formula uses the corresponding relationship between temperature difference and heat flow. Due to many environmental interference factors, it is difficult to achieve thermal balance, and there are limitations in industrial applications. [0004] The compensation measurement method is a measurement m...

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
Patent Type & Authority Applications(China)
IPC IPC(8): G01N25/20
Inventor 郑艺华刘君
Owner QINGDAO UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com