ARE 51
CORRECT ANSWERS
◍ Balance Point Temperature. Answer: The outdoor temperature at
which a building makes the transition from a heating to a cooling
need
◍ Daylight autonomy. Answer: The percentage of an area that meets a
minimum daylight illuminance level or specified fraction of the
operating hours per year. also referred to as special daylight autonomy
◍ Daylight factor. Answer: The ratio expressed as a percentage othe
indoor aluminates at a point on a horizontal surface to the
unobstructed Exterior horizontal illuminance
◍ Effective aperature. Answer: The product of visible transmittance
and the window to wall ratio
◍ Equation of time. Answer: The factor used to account for the
difference between solar time and clock time. Solar time is based on
the position of the sun. It's basic unit is the solar day
,◍ Glazing factor. Answer: A LEED based number calculated by
taking into account window area, floor area, a window geometry
factor, light transmission, and a window height factor.
◍ Ground light. Answer: Visible light from the sun and sky, reflected
by exterior surfaces below the plane of the horizon
◍ Light shelf. Answer: A horizontal element position above eye level
and designed to reflect daylight on the ceiling for improved
daylighting effectiveness
◍ Net metering. Answer: The requirement that a utility pay and
charge equal rates regardless of which way electricity flows as a part
of the utility Grid.
◍ Radiation spectrum. Answer: The entire range of electromagnetic
radiation extending from 0 hz to 1023 hz. This includes visible light
as well as infrared radiation, radio waves, and gamma rays among
others
◍ Radiative cooling. Answer: Passive or active design strategy that
uses thermal mass to collect and store heat during the day for release
at night. Also known as nocturnal cooling and night cooled mass
◍ Shading coefficient. Answer: The ratio of the solar heat gain thru a
glazing product to the solar heat gain through an untreated 1/8 in clear
double strength glass under the same set of conditions. This is the
value for the glass only, does not include the frame
, ◍ Solar constant. Answer: The amount of solar energy that falls in
our unit time on her unit area that is 93,000,000 miles from the sun
and orientated on a plane perpendicular to the suns rays. The mean
value of the solar constant is 433 btu/hr-ft
◍ Solar heat gain coefficient. Answer: The ratio of the solar heat gain
thru a fenestration to the total solar radiation incident on the glazing.
◍ Solar time. Answer: The time as defined by the sun and it's position
relative to the earth. Because the length of the solar day varies most
reference the mean solar day as a basis for timekeeping.
◍ Solar savings fraction. Answer: The fraction of the total energy
used by system that is provided by solar technology. Represented by
the variable F, it is a decimal fraction from 0 to 1
◍ Visible light transmittance. Answer: The fraction of visible light
that passes through a glazing material
◍ Window to wall ratio. Answer: The ratio of the net glazing area in
your room or space to the gross exterior wall area
◍ Work plane. Answer: This assumed height at which work is
performed usually considered to be at a desk height, 30 inches above
the floor
CORRECT ANSWERS
◍ Balance Point Temperature. Answer: The outdoor temperature at
which a building makes the transition from a heating to a cooling
need
◍ Daylight autonomy. Answer: The percentage of an area that meets a
minimum daylight illuminance level or specified fraction of the
operating hours per year. also referred to as special daylight autonomy
◍ Daylight factor. Answer: The ratio expressed as a percentage othe
indoor aluminates at a point on a horizontal surface to the
unobstructed Exterior horizontal illuminance
◍ Effective aperature. Answer: The product of visible transmittance
and the window to wall ratio
◍ Equation of time. Answer: The factor used to account for the
difference between solar time and clock time. Solar time is based on
the position of the sun. It's basic unit is the solar day
,◍ Glazing factor. Answer: A LEED based number calculated by
taking into account window area, floor area, a window geometry
factor, light transmission, and a window height factor.
◍ Ground light. Answer: Visible light from the sun and sky, reflected
by exterior surfaces below the plane of the horizon
◍ Light shelf. Answer: A horizontal element position above eye level
and designed to reflect daylight on the ceiling for improved
daylighting effectiveness
◍ Net metering. Answer: The requirement that a utility pay and
charge equal rates regardless of which way electricity flows as a part
of the utility Grid.
◍ Radiation spectrum. Answer: The entire range of electromagnetic
radiation extending from 0 hz to 1023 hz. This includes visible light
as well as infrared radiation, radio waves, and gamma rays among
others
◍ Radiative cooling. Answer: Passive or active design strategy that
uses thermal mass to collect and store heat during the day for release
at night. Also known as nocturnal cooling and night cooled mass
◍ Shading coefficient. Answer: The ratio of the solar heat gain thru a
glazing product to the solar heat gain through an untreated 1/8 in clear
double strength glass under the same set of conditions. This is the
value for the glass only, does not include the frame
, ◍ Solar constant. Answer: The amount of solar energy that falls in
our unit time on her unit area that is 93,000,000 miles from the sun
and orientated on a plane perpendicular to the suns rays. The mean
value of the solar constant is 433 btu/hr-ft
◍ Solar heat gain coefficient. Answer: The ratio of the solar heat gain
thru a fenestration to the total solar radiation incident on the glazing.
◍ Solar time. Answer: The time as defined by the sun and it's position
relative to the earth. Because the length of the solar day varies most
reference the mean solar day as a basis for timekeeping.
◍ Solar savings fraction. Answer: The fraction of the total energy
used by system that is provided by solar technology. Represented by
the variable F, it is a decimal fraction from 0 to 1
◍ Visible light transmittance. Answer: The fraction of visible light
that passes through a glazing material
◍ Window to wall ratio. Answer: The ratio of the net glazing area in
your room or space to the gross exterior wall area
◍ Work plane. Answer: This assumed height at which work is
performed usually considered to be at a desk height, 30 inches above
the floor
