A hot-humid climate wind tunnel and its multi-field coupling control system

Abstract

The invention discloses a hot-humid climate wind tunnel and its multi-field coupling control system. Fans, temperature-changing equipment, humidifying equipment, salt spray generators, sky background radiation panels, solar radiation lamp arrays and rainfall are installed in the wind tunnel. Generator, and wind speed sensor, temperature sensor, humidity sensor, salt spray concentration sensor, background radiation temperature sensor, hemispherical radiometer and rain gauge are installed in the test section; the sky background radiation plate is installed on the top of the wind tunnel test section, and the solar radiation The light array and the rainfall generator are installed on the sky background radiant plate; the sky background radiant plate includes heat conduction plates, stainless steel plates, and copper tubes. Multiple heat conduction plates are divided into multiple rows and installed on stainless steel plates, and each row of heat conduction plates is covered with copper Pipes, copper pipes are connected with external hot and cold water equipment. The invention can realize the simulation of seven parameter fields of wind speed, temperature, humidity, solar irradiance, effective sky temperature, rainfall and salt fog in outdoor natural climate.

Description

technical field [0001] The invention relates to the field of multi-parameter environment simulation, in particular to a hot-humid climate wind tunnel and a multi-field coupling control system thereof. Background technique [0002] With the rapid expansion of cities and the extensive application of hard paving materials, the urban heat island effect has become increasingly serious, affecting the regional climate in which residents live. Deteriorating climate conditions not only affect people's physical health and thermal comfort, but also affect the healthy development of the entire city. Reducing the intensity of urban heat island and improving urban thermal environment have attracted the attention of various countries. At the same time, under the current situation that countries are vigorously developing island construction, the thermal and physical properties of island buildings urgently need to be further studied. Among them, wind tunnel test has become an important met...

AI Technical Summary

Problems solved by technology

However, at present, wind tunnels at home and abroad cannot reproduce the complex and extremely saline hot-humid island climate, so higher requirements are put forward for the environmental simulation capabilities of wind tunnels

[0003] Most of the existing environmental wind tunnels are not suitable for extreme hot and humid climates, and cannot simulate complex climate conditions such as high temperature, high humidity, high salinity, and high radiation, and cannot realize the diurnal and hourly adjustment and dynamic coupling control of multiple environmental parameters. Conducive to fine research of building materials under the coupling influence of complex climate parameters

In addition, the scale of the existing environmental wind tunnel is limited, and it only has partial simulation experiment capabilities, and it is impossible to integrate multiple test sections in the same wind tunnel

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