BUILDING PERFORMANCE_PART 1
WHAT IS THE ENERGY USE INTENSITY FOR A 25,000 SQ FT WITH AN ANNUAL ENERGY CONSUMTION OF 500000 KBTU/YR
20 KBTU/FT^2
CALCULATE 100,000kBtu/yr divided by 5,000 ft^2
20.0 kBtu/ft^2/yr
CALCULATE 150,000kBtu/yr divided by 5,000 ft^2
30.0 kBtu/ft^2/yr
HEAT LOSS FORM FACTOR
=HEAT LOSS AREA/TREATED FLOOR AREA = SURFACE AREA/FLOOR AREA
BASIC THREE DIMENSIONAL SHAPE THAT IS MOST ENERGY EFFIECIENT BU ALSO EASY TO BUILD
CUBE
The term used to describe the controlled admission of natural light, direct sunlight, and diffused-sunlight into a building to reduce or eliminate the need for electric lighting is:
DAYLIGHTING
The sum of all the greenhouse gas emissions (mostly carbon dioxide) resulting from the mining, harvesting, processing, manufacturing, transportation and installation of building materials refers to a building's
EMBODIED CARBON
THE ERM USED TO DECRIBE THE ANNUAL ENERGY USE OF A BUILDING THAT IS DETERMINED BY MEASURING THE AMOUNT OF ENERGY USED PER SQUARE FOOT ANNUALLY
ENEURGY USE INTENSITY
The branch of biology that deals with the relations of organisms to one another and to their physical surroundings is known as:
Ecology
In northern heating climates, what strategy below can be utilized to maximize the surface area of the building exposed to direct winter sunlight/radiation?
Elongating the building in the east-west direction
Which type of common exterior rigid insulation has the LOWEST R-value per inch of material thickness
Expanded Polystyrene (EPS)
A BUILDING WITH A HIGHER ENERGY USE INTESTIY HAS A HIGHER LEVEL OF ENERGY PERFORMANCE THAN A BUILDING WITH A LOWER ENERGY USE INTENSITY
FALSE
A building's embodied carbon includes the amount of greenhouse gasses emittedas a result of the building's annual operation and maintenance
FALSE
A steel structural system typically has a lower amount of embodied carbon than amass timber structural system
FALSE
T/F: AT MID TO HIGH LATITUDES, THE WINTER SUN IS LOW IN THE SKY, STRIKING THE SIDE OF THE BUILDING FACING AWAY FROM THE EQUATOR, I.E. THE NON-SOLAR SIDE/
FALSE
T/F: BUILDINGS ELONGRATED IN THE NORTH-SOUTH DIRECTION EXPOSE THE LONGER EAST AND WEST SIDES FOR CONROLLED DAYLIGHTING
FALSE
T/F: BUILDINGS WITH LARGE FLOOR PLATES CAN NOT INTRODUCE DAYLIGHT THROUGH ATRIUMS AND COURTYARDS
FALSE
T/F: STRATEGIES FOR IMPROVING A BUILDING EUI FOCUS ON INCREASING THE BUILDINGS ANNUAL ENERGY CONSUMPTION.
FALSE
T/F: THE MORE COMPACT THE BUILDING MASS. THE MORE ENERGY INEFFICIENT THE BUILDING
FALSE
The relatively clean waste water from baths, sinks, washing machines, and other kitchen appliances is commonly referred to as
Greywater
The branch of science concerned with the properties of the earth's water, and especially its movement in relation to land is known as
HYDROLOGY
MOST HEATING NEEDS OCCUR IN BUILDINGS AT THIS ALTITUTE
MID TO HIGH LATITUDES (30-60 DEGREE)
STRATEGIES FOR IMPROVING A BUILDINGS EUI
MULTI CHOICE
The design strategy that utilizes the sun's energy (as opposed to mechanical systems) for the heating of living spaces is referred to as
Passive Solar Design
WHEN DEVELOPING A BUILDING SHAPE, CONSIDER HOW BEST TO ADMIT DAYLIGHT INTO THE BUILDING AND USE RULE OF THUMB
RULE OF THUMB FOR DEVELOPING BUILDING SHAPES AND FLOOR PLATES
BASIC THREE-DIMENSIONAL SHAPE IS MOST ENERGY EFFIECIENT
SPHERE
Which of the following materials does NOT function as an effective thermal mass:
STEEL
The annual metric that describes the percentage of a space that receives sufficient daylight over the course of the year is:
Spatial Daylight Autonomy (sDA)
General strategies for improving the building performance and energy use intensity (EUI) of a building typically include which of the following (select all that apply)
Specifying the use of recycled building materials
ENERGY USE INTENSITY (EUI)
THE AMOUNT OF ENERGY USED PER SQUARE FOOT ANNUALLY
DAYLIGHTING
THE CONTROLLED ADMISSION OF NATURAL LIGHT, DIRECT SUNLIGHT, AND DIFFUSED-SUNLIGHT INTO A BUILDING TO REDUCE OR ELIMINATE THE NEED FOR ELECTRIC LIGHTING (THEREBY SAVING ENERGY)
EUI FORMULA
TOTAL ENERGY CONSUMED (ANNUALLY)/TOTAL GROSS FLOOR AREA
Brick typically has a lower amount of embodied carbon than aluminum
TRUE
Greywater can typically be reused for the flushing of water closets, the operation of clothes washers, or other non-potable uses:
TRUE
Native grasses and shrubs tend to be more effective than turf at increasing stormwater infiltration and reducing stormwater runoff
TRUE
T/F: A BUILDING SHAPE WITH A NARROW FLOOR PLATE MAXIMIZES EXTERIOR WALL AREA FOR INCORPORATING GLAZING TO DAYLIGHT INTERIOR SPACES
TRUE
T/F: A BUILDING WITH AMPLE SURFACE AREA EXPOSED TO DIRECT SUNLIGHT IN WINTER CAN EASILY INCORPORATE PASSIVE HEATING SYSTEMS
TRUE
T/F: BUILDING FLOOR PLATES CAN BE ELONGATED, CURVED, OR ORGANIZED INTO MANY SHAPES.
TRUE
T/F: BUILDINGS IN THE EAST-WEST DIRECTION EXPOSE THE LONGER NORTH AND SOUTH SIDES FOR CONTROLLED DAYLIGHTING
TRUE
T/F: BUILDINGS THAT ENCLOSE A LARGE QUANTITY OF FLOOR AREA/VOLUME WITH A SMALL SURFACE AREA TEND TO HAVE LOWERST EUI'S
TRUE
T/F: BUILDINGS WITH LARGE FLOOR PLATES CAN INTRODUCE DAYLIGHT THROUGH ATRIUMS AND COURTYARDS
TRUE
T/F: EAST AND WEST FACADES CONTINUE TO RECIEVE UNIFORM, STRONG SOLAR RADIATION AT A LOW ANGLE THROUGH THE YEAR
TRUE
T/F: ENVELOPE AND FENESTRATION DESIGN CAN BE TAILORED TO THE SITE
TRUE
T/F: HIGH CEILINGS AND WINDOWS ALLOW FOR GREATER INTERIOR DAYLIGHT PENETRATION
TRUE
T/F: LOW-RISE AND ONE-STORY STRUCTURES CAN BE ANY SHAPE SINCE INTERIOR SPACES HAVE ACCESS TO THE ROOF FOR DAYLIGHITNG
TRUE
T/F: OTHER BUILDING SHAPES AND SPACES NEEDING SUNLIGHT THAT DO NOT HAVE SOLAR FACING WALL SURFACES CAN BE HEATED BY SOLAR-ORIENTED SKYLIGHTS, CLERESTORIES, AND INTEGRATED SUN SPACES
TRUE
T/F: THE EUI IS THE PRIME INDICATOR OF A BUILDINGS ENERGY PERFORMANCE
TRUE
T/F: THE LOWER EUI REPRESENTS BETTER ENERGY PERFORMANCE
TRUE
The incorporation of energy-generating systems or infrastructures can decrease a building's annual energy use intensity (EUI)
TRUE
The type of soil, the slope, and the type of vegetation all influence the amount ofstormwater runoff from a site
TRUE
in general, the more compact the building mass, the more energy-efficient the building.
TRUE
An area or component of an assembly that has higher thermal conductivity than the surrounding materials is commonly referred to as a:
Thermal Bridge
The building element that separates conditioned indoor spaces from unconditioned spaces and the exterior elements is typically referred to as:
Thermal Envelope
The element within a passive solar design system that absorbs and stores daytime solar heat in winter for release at night is referred to as:
Thermal Mass
A landscape design requiring little or no irrigation or other maintenance is known as
XERISCAPE
SPATIAL DAYLIGHT AUTONOMY (sDA)
an annual metric that describes the percent of space thatreceives sufficient daylight - i.e. the percentage of floorarea that receives at least 300 lux for at least 50% ofthe annual occupied hours (8am-6pm) on the horizontalwork plane (30" above the floor or work plane height)
ANNUAL SUNLIGHT EXPOSURE (ASE)
the percentage of space that receives too much directsunlight (1000 Lux or more for at least 250 occupiedhours per year) at the work plane height
HOT CLIMATES
● Passive cooling ● Shaded walls and glazing ● Natural ventilation ● Reflected daylighting ● Light exterior colors ● Insulation (min.): RSI 2.8 (R 16) ● Glazing: double
COLD CLIMATES
● Passive solar heating, daylighting. ● Insulation (min.): RSI 4.1 (R 23) ● Glazing: double (thermal break, moveable insulation)
MIXED CLIMATES
● Warm Season: Passive cooling, shaded gazing, reflected daylighting. ● Cold Season: Passive solar heating, daylighting. ● Insulation (min.): RSI 3.5 (R 20) ● Glazing: double (thermal break)