Experimental device for studying the evolution law of horizontal and vertical heat storage and release of soil in underground space

Abstract

The invention relates to an experimental device for studying an evolution law of transverse-vertical anisotropic heat storage and release of an underground space soil body. The experimental device comprises an outdoor environment parameter simulation device, an indoor environment parameter simulation device, a transverse-vertical anisotropic heat and moisture coupling experiment block and an experiment table rack, wherein the outdoor environment parameter simulation device comprises an air thermal environment simulation wind pipe and a spray system, the indoor environment parameter simulation device comprises a constant temperature water bath plate, a water bath temperature measuring point, a water bath speed measuring point and a water pump; the transverse-vertical anisotropic heat and moisture coupling experiment block comprises a heat transfer soil body, a soil body temperature measuring point, a soil body relative humidity measuring point and a heat flux density measuring point; a heat transfer soil body support frame has 5% of an inclination, and four ground wheels are arranged at the lower part of a movable integrated support frame. The experimental device disclosed by the invention can simply and conveniently change the flow velocity and temperature of a constant temperature water bath and periodic changes of an outdoor environment, so that the parameters of an experimental block soil body are changed, and long-term heat storage and release characteristics of a lateral soil body in an underground space enclosing structure under indoor and outdoor periodic temperature and humidity boundary conditions are given through dynamic analysis.

Description

technical field [0001] The invention relates to an experimental device for researching the thermal environment of an underground space building, in particular to an experimental device for studying the long-term heat storage and release characteristics of side soil in an underground space enclosure structure under indoor and outdoor periodic temperature and humidity boundary conditions. Background technique [0002] Nowadays, as an important part of modern cities, underground space has an increasing building area and increasing building functions. In the thermal environment of underground buildings such as bookstores, restaurants, and subways, there is a problem of heat storage and release by the soil on the side of the enclosure structure. It is known that it has the following effects on the indoor thermal environment: First, it has a balanced adjustment effect on indoor air temperature and humidity, which not only affects the indoor cooling and heating load and the length o...

AI Technical Summary

Problems solved by technology

[0004] The present invention is to provide an experimental device for studying the evolution law of heat storage and release in different directions in the underground space. It makes up for the limitation of numerical simulation limited by physical modeling and boundary condition setting, and the working condition of this device is easy to adjust, and the experimental data can be easily obtained, which greatly reproduces the indoor and outdoor The evolution law of horizontal and vertical heat storage and release under periodic temperature boundary conditions; through this evolution law, the heat storage and release characteristics of the underground space enclosure structure can be given, which can be used as an important basis for the study of underground space load and energy consumption, and can be Analyze and predict the seasonal cooling load of indoor air conditioners, and give the characteristics of indoor air temperature fluctuations in non-air-conditioned seasons, which provides guidance for the design of air-conditioning loads in underground spaces

Images