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Blower door installation (France) Depending on how a blower door test is performed, a wide variety of airtightness and building airflow metrics can be derived from the gathered data. Some of the most common metrics and their variations are discussed below. The examples below use the SI pressure measurement unit Pascal (pa). Imperial measurement ...
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.
An HVAC component that uses outside air, under suitable climate conditions, to reduce required mechanical cooling. When the outside air’s enthalpy is less than the required supply air during a call for cooling, an economizer allows a building’s mechanical ventilation system to use up to the maximum amount of outside air. enthalpy
The device was found to provide sufficient ventilation air flow for a single family home and heat recovery with an efficiency around 40%. The device was however found to be too large and heavy to be practical, and the heat recovery efficiency too low to be competitive with mechanical systems of the time.
In 2004, the Massachusetts legislature placed a moratorium on state assistance to the funding of public school capital expenditure projects. A prior backlog of more than 800 audits and a failure of the legislature to properly fund the former School Building Assistance Program (SBA) had led to an accumulated a debt of more than $10 billion from the SBA's operations.
However, the variable price of oil on world markets leads to erratic and high prices compared to some other energy sources. Institutional heating systems (office buildings or schools, for example) can use low-grade, inexpensive bunker fuel to run their heating plants, but capital cost is high compared to more easily managed liquid fuels.
A day school — as opposed to a boarding school — is an educational institution where children [1] are given instruction during the day, after which the students return to their homes. A day school has full-day programs when compared to a regular school which may end early and require additional after-school programs for students with ...
Detroit Country Day School (also known as DCD, DCDS, or Country Day) is a private, secular school located in three campuses in Oakland County, in the U.S. state of Michigan, north of Detroit. The administrative offices, facility services, safety and security services, and the upper school (Grades 9-12) are situated in a campus in Beverly Hills .