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Title:
METHOD FOR MEASURING HERMETICITY OF BUILDING
Document Type and Number:
Japanese Patent JP3545855
Kind Code:
B2
Abstract:

PROBLEM TO BE SOLVED: To provide a method for easily and correctly measuring a hermeticity of a building in an inhabited state.
SOLUTION: While an opening part 2 of a building 1 is opened, a ventilation fan 12 is driven and a minute differential pressure sensor 11 is set at an air in port and an air out port of the ventilation fan 12. An air pressure difference between the air in port and the air out port of the ventilation fan 12 is detected by the sensor 11. A pressure loss of an air discharge duct 9 is calculated from the detected air pressure difference and a ventilation amount of the ventilation fan 12. Then, the opening part 2 of the building 1 is closed, and the ventilation fan 12 is driven in this state. An air pressure difference between inside and outside of the building 1 is detected by a minute differential pressure sensor 6. A pressure loss of the building 1 is calculated from the air pressure difference between inside and outside of the building 1 and the ventilation amount of the ventilation fan 12. The pressure loss of the air discharge duct 9 is subtracted from the pressure loss of the building 1, whereby a hermeticity of the building 1 is measured.


Inventors:
Hiroshi Yagisawa
Shota Uenishi
Yoji Mie
Application Number:
JP30560995A
Publication Date:
July 21, 2004
Filing Date:
November 24, 1995
Export Citation:
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Assignee:
Sekisui Chemical Co.,Ltd.
International Classes:
G01L13/00; G01M3/26; (IPC1-7): G01M3/26
Domestic Patent References:
JP2987412B2
JP60131440A
Other References:
URL,コーナー札幌株式会社ホームページ