A kind of field test method of infiltration wind

A field test and test point technology, applied in the field of construction, can solve the problems of large measurement errors and difficulty in obtaining test results, and achieve the effect of offsetting system errors and accurate test results

Active Publication Date: 2022-02-11
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

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  • A kind of field test method of infiltration wind
  • A kind of field test method of infiltration wind
  • A kind of field test method of infiltration wind

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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 present invention discloses a field test method for infiltration wind, the method includes: testing the wind speed v inside the entrance of the room to be tested; according to the wind speed v and the wind speed v and the first weight i 1 The first correspondence of determines the first weight i 1 , and use the wind speed v to calculate the first infiltration air volume Q 1 ;Test the indoor CO of the room to be tested 2 concentration and outdoor CO 2 Concentration; using indoor CO 2 concentration and outdoor CO 2 Concentration Calculation Second Infiltration Air Volume Q 2 ;according to indoor CO 2 concentration and outdoor CO 2 Concentration difference ΔCO 2 , the first weight i 1 And the second correspondence calculates the second weight i 2 ; Among them, the second corresponding relationship is the concentration difference ΔCO 2 with the first weight i 1 The corresponding relationship of the specific gravity k; the second weight i 2 The calculation formula is i 2 = 1.0‑i 1 k; calculate the infiltration air volume Q of the room to be tested; wherein, the calculation formula of the infiltration air volume Q is Q=i 1 ·Q 1 + i 2 ·Q 2 . Compared with the single test method, the test result of infiltration air volume obtained by this 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...

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Application Information

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Patent Type & Authority Patents(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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