System and method for measuring a leakage area for constructing a smoke-ventilation apparatus

A system for estimating a leakage area of a test room, the system comprising:

• a chamber positioned in the test room and storing air compressed by a compressor;
• one or more pressure sensors configured to measure a pressure change of the test room when the compressed air in the chamber is discharged instantaneously;
• a gauging means configured to estimate a leakage area in the test room by using a pressure change value of the test room detected by the one or more pressure sensors;
• and
• a pressure sensor configured to measure a pressure change of the chamber, wherein
• the gauging means is further configured to estimate a first leakage area by monitoring a pressure change of the test room according to time when the pressure change in the chamber is stopped, and
• the gauging means is further configured to estimate a second leakage area of the test room by using the first leakage area and a correlation formula shown below:
• ELAs=aELAdiff+b
• where ELAdiff is the first leakage area, ELAs is the second leakage area, and a and b are constants.

A method for estimating a leakage area of a test room, the method comprising:

• positioning a chamber in the test room;
• compressing air in the chamber by using a compressor;
• opening a valve to instantaneously discharge the compressed air in the chamber;
• measuring a pressure change of the test room resulting from the discharge of the compressed air by using a pressure sensor;
• and
• estimating a leakage area in the test room by using the detected pressure change value of the test room, wherein
• the estimating of the leakage area comprises estimating a first leakage area by integrating a pressure change of the test room over an entire duration of pressure change of the test room resulting from the discharge of the compressed air of the chamber and estimating a second leakage area of the test room by using a predefined correlation formula and the first leakage area, and
• the predefined correlation formula is:
• ELAs=aELAint+b,
• where ELAint is first leakage area, ELAs is the second leakage area, and a and b are constants.

A non-transitory recorded medium readable by a digital processing device, the recorded medium tangibly embodying a program of instructions executable by the digital processing device to perform a method comprising:

• receiving a pressure change value resulting from instantaneously discharging compressed air in a chamber positioned in the test room;
• and
• estimating a leakage area in the test room by using the pressure change value,
• wherein the estimating of the leakage area comprises measuring a first leakage area by integrating a pressure change of the test room over an entire duration of pressure change of the test room resulting from the discharge of the compressed air of the chamber and estimating a second leakage area of the test room by using a predefined correlation formula and the first leakage area, and
• the predefined correlation formula is:
• ELAs=aELAint+b,
• where ELAint is the first leakage area, ELAs is the second leakage area, and a and b are constants.