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Permeation wind field test method

A field test and test point technology, applied in the construction field, can solve the problems of large measurement error and difficulty in obtaining test results.

Active Publication Date: 2020-06-19
EAST CHINA ARCHITECTURAL DESIGN & RES INST
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Problems solved by technology

For example, when the infiltration air volume is smaller, the measurement error will be larger, and it is difficult to obtain accurate test results by only testing the wind speed

Method used

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Embodiment Construction

[0049] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, but not to limit the present invention. In addition, it should be noted that, for the convenience of description, only some structures related to the present invention are shown in the drawings but not all structures.

[0050]In the test method of infiltration wind, wind speed test method and indoor CO 2 The operation of the tracer gas method is relatively simple, but the measurement error of the single anemometer method is large when the wind speed is low, and the single indoor CO 2 Tracer gas method for indoor and outdoor CO 2 The measurement error is larger when the concentration difference is small. Understandably, the outdoor CO 2 The concentration is relatively stable, due to factors such as human respiration, indoor CO ...

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Abstract

The embodiment of the invention discloses a Permeation wind field test method. The method comprises the steps of testing the wind speed v of the inner side of an entrance of a to-be-tested room determining a first weight i1 according to the wind speed v and a first corresponding relationship between the wind speed v and the first weight i1, and calculating a first permeation wind quantity Q1 by utilizing the wind speed v; testing the indoor CO2 concentration and the outdoor CO2 concentration of the to-be-tested room; calculating a second permeation air volume Q2 by utilizing the indoor CO2 concentration and the outdoor CO2 concentration; calculating a second weight i2 according to the concentration difference delta CO2 between the indoor CO2 concentration and the outdoor CO2 concentration,the first weight i1 and the second corresponding relation; wherein the second corresponding relation is the corresponding relation between the concentration difference delta CO2 and the specific gravity k of the first weight i1; wherein the calculation formula of the second weight i2 is i2 = 1.0-i1 * k; calculating the permeation air volume Q of the to-be-measured room; wherein the calculation formula of the permeation air volume Q is Q = i1 * Q1 + i2 * Q2. Compared with a single test method, the test result of the permeation air volume obtained according to the method is more accurate, and the system error is smaller.

Description

technical field [0001] The embodiments of the present invention relate to the field of construction, and in particular to a field test method for infiltration wind. Background technique [0002] Quantitative measurement of infiltration wind is an important prerequisite for studying the characteristics of large space infiltration wind and analyzing its impact on indoor thermal and humid environment. [0003] The test methods for air infiltration generally include tracer gas method, wind speed test method, moisture content method, and heat balance method. Due to the different time and space latitudes of building large space testing, no matter which test method the test results will have greater uncertainty, the system error will be greater. For example, when the infiltration air volume is smaller, the measurement error is larger, and it is difficult to obtain accurate test results by only testing the wind speed. Contents of the invention [0004] An embodiment of the prese...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M9/00G01M9/06
CPCG01M9/00G01M9/065
Inventor 范昕杰瞿燕李海峰陈湛
Owner EAST CHINA ARCHITECTURAL DESIGN & RES INST
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