Testing platform for measuring characteristic parameters of one-dimensional heat and humidity transfer

Abstract

The invention discloses a testing platform for measuring characteristic parameters of one-dimensional heat and humidity transfer. The testing platform is characterized in that an absolute-dry cavity gas feeding system comprises a fan, a filtering net, a semiconductor refrigerating piece and a water collecting disc; a nitrogen feeding system comprises a nitrogen cylinder, a nitrogen inlet valve, a nitrogen feeding pipeline, a deionized water tank, a nitrogen inlet pipeline and a nitrogen outlet pipeline; an ultrasonic humidifying system comprises a deionized water feeding pipeline, a water tank, an ultrasonic oscillator, a deionized water discharging pipeline and a sewage discharging pipeline; and a sample fixing device is positioned between a constant-temperature and constant-humidity cavity and an absolute-dry cavity and comprises a sample positioning plate, an absolute-humidity insulating material, a measured porous medium, an openable and closable type sample feeding port, a humidity-sensor fixing plate and a pressing wedge block with telescopic sliding of a porous medium sample along the longitudinal direction. The testing platform disclosed by the invention has the advantages that the ambient temperatures at the two sides in one-dimensional direction of a sample can be independently and effectively controlled respectively, and the transfer of humidity in the direction near one dimension can be guaranteed.

Description

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AI Technical Summary

Benefits of technology

This innovation allows us to measure properties such as heat transmission or water vapor diffusion coefficients (WC/Mo) at different temperatures from samples that are too large for testing alone. These tests have been developed with ease by allowing them to move freely within small spaces without affecting their surroundings. They also allow for precise measurement overall, providing valuable insights into how these factors impact various aspects of permeable material behavior during construction processes like rainwater retention.

Problems solved by technology

This patented technical problem addressed by this patents relates to improving the thermal insulation properties of buildings while ensuring they are comfortable enough during different environmental factors like sunlight or rainwater. Current methods involve measuring these variables separately but without precise measurements over time which makes them difficult to manage effectively across multiple types of construction material used worldwide.

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