ESVENT
As its name implied, this link will bring you the information regarding ventilation. You can learn lots about ventilation and you can even learn the meaning of some of the complex abbreviation here.
ESVENT TOOLS
This is the core of the website which comprises of a calculator for calculating the cfm (cube feet per minute), convertion of calculating unit and an overview of the list of standards and guidelines for the air change.
Ventilation
Ventilation can be assumed a new dimension in building design process as
a result of the much publicized 'a sick building syndrome'. The fundamental
complaint about the air quality of the building based on air conditioning
design rather than naturally ventilated buildings. Building sickness comprises
of stale and unacceptable indoor air, headache, sensation of stuffy, irritation
of mucous membranes and lethargy. These problems due to reduction in the
supply rate of outdoor air to building in order to conserve energy.
In today's technological society about 90% of the time is spent in an indoor
environment (i.e. home, office, factory, transport, etc) and hence the provision
of contaminant-free outdoor air to buildings is becoming a necessity.
The practically ventilation system in building must be designed:
-To maintain minimum fresh air ventilation appropriate to the needs of the
function of the space in order to achieve a good air quantity
-To avoid excessive ventilation during the heating/cooling season
-To deliver fresh air to the occupied space in manner that does not give
rise
to discomfort through draughts or low air temperatures
Introduction
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