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The first blower door was further used to test the airtightness of the Saskatchewan Conservation House built in 1977, which was tested at 0.5 ach at 50 Pa. These early research efforts demonstrated the potential power of blower door testing in revealing otherwise unaccounted for energy losses in homes.
A third test method to determine if ductwork is leaking to the outside is to use a pressure pan, which is a register cover with a pressure tap for a hose connection. With the house pressurized (or depressurized) to 50 Pa (-50 Pa) using a blower door, a pressure gauge is attached to the pressure pan by means of a hose.
A blower door test can be used to test the quality of the air sealing of the building envelope. Smoke pencils can be used to detect gaps and caulking and weather-stripping can be used to improve air sealing. [ 10 ]
The most common technique to measure airtightness is the fan pressurization method, also known as the blower door test. It is measured by the number of air changes per hour (ACH) that occur when there is a differential pressure of 50 pascals between outside and inside the building.
In 2011, Heidelberg, Germany, initiated the Bahnstadt project, which was seen as the world's largest passive house building area. [36] A company in Qatar planned the country's first Passive House in 2013, [37] the first in the region. The world's tallest passive house was built in the Bolueta neighborhood in Bilbao, Spain. At 289 feet (88 m ...
ANSI/AMCA Standard 250 - Laboratory Methods of Testing Jet Tunnel Fans for Performance was developed in response to the need for a standard method of testing jet tunnel fans, sometimes called impulse fans, which have seen increasing use in the United States. The test procedures outlined in this standard are in harmony with those found in ISO 13350.
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A typical commercial air curtain enclosure. In North America, the more commonly-used term for an air door is "air curtain". The American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE) defines an air door as follows: "In its simplest application, an air curtain is a continuous broad stream of air circulated across a doorway of a conditioned space.
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