Porous medium gas diffusion coefficient experimental device under stepless humidity regulation and method thereof

• Main Authors: DU YANJUN, WAN JIALEI, ZHOU SHIJI, JIANG NINGJUN, LI YINGZHEN, HU XINLEI
• Format: Patent
• Language: Chinese; English
• Published: 14.03.2023
• Subjects: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; PHYSICS; TESTING

The invention discloses a porous medium gas diffusion coefficient experimental device under stepless humidity regulation and a method thereof. The porous medium gas diffusion coefficient experimental device comprises an external constant temperature and humidity chamber, a gas diffusion tester, a standard salt solution, a gas concentration sensor and the like. The testing device can be used for testing the influence of the soil body with any saturation degree as a horizontal barrier layer on gas diffusion under specific temperature and humidity. Meanwhile, the invention further provides a testing method of the model device for testing the gas diffusion coefficient of the horizontal barrier layer, and the testing method comprises the following steps: measuring the temperature, humidity, oxygen concentration, soil moisture content and soil compaction degree of a testing environment; the influence of soil saturation, gas diffusion coefficient, air humidity and temperature, different barrier materials and compact