Question

Describe the processes for different airtightness tests (one to three zones, one and two fans, pressurization and depressurization)

A) Use one fan for pressurization
B) Conduct depressurization for one zone
C) Use two fans for one zone
D) Follow recommended procedures for each test

Answer 1

The processes for different airtightness tests include using one fan for pressurization, conducting depressurization for one zone, and using two fans for one zone. It is important to follow the recommended procedures for each test.

Step-by-step explanation:

The different airtightness tests include:

1. One fan for pressurization: In this test, a single fan is used to pressurize the zone or area being tested. The test measures the air leakage rate and evaluates the airtightness of the zone.
2. Depressurization for one zone: This test involves using a single fan to create negative pressure in the zone. It measures the air leakage rate and determines the airtightness of the zone.
3. Two fans for one zone: This test utilizes two fans to simultaneously pressurize and depressurize the zone. It provides a more accurate measurement of the air leakage rate and airtightness of the zone.
4. Recommended procedures: It is important to follow the recommended procedures for each test to ensure accurate results and proper evaluation of airtightness.