Natural Ventilation Flashcards
2 basic natural forces
Buoyancy , wind
What is positive wind and negative wind pressures called
Positive is Windward
Negative is leeward
Three types of natural ventilation openings
Windows
Doors
Ridge vents
Where should Inlet openings in building be located?
Winward as low as possible
Where should outlet openings be in building?
Leeward side as high as possible
Describe R-value
The ability to resist heat transfer
Insulated ceilings should be divided by 300 true or false
True
Free ventilation area in crawlspace should be divided by 500 true or false
True
Which heat pump is most common
Air to air
What type of heat pumps uses ground or ground water energy?
Geothermal
What equipment captures heat from exhaust air transfer? And transferred to fresh air in building
HRV
What constitutes the difference of an HRV/ERV
Heat exchanger
Name three forms of solar energy
Direct radiation
Albedo radiation
Diffused radiation
How many types of alternate energy sources are there?
Five
Two types of solar space heating
Positive
Active
Name a renewable energy source from living organisms and byproducts
Bio energy
Name the physical components of a building envelope
Foundation
Roof
Walls
Doors
Is it recommended to rely on air leakage from ventilation?
Not recommended can’t be controlled
What is used to separate between interior and exterior environments?
Envelope
A chemical compound combine with carbon it is vital for human survival
Dioxide
Type of system that is combined passive and active solar space heating
Hybrid
Type of radiation that reflects from earth surface
Albedo
What type of insulation influence by temperature?
Stack affect
The results of different air this is
Buoyancy
