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LEED > Energy and Atmosphere > Flashcards

Energy and Atmosphere Flashcards

1
Q

What percentage of primary energy use does the conventional buildings use

A

39%

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2
Q

What percentage of electricity consumption does the conventional building use

A

72%

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3
Q

What percentage of co2 emissions does the conventional building create

A

38%

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4
Q

CxA

A

commissioning authority

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5
Q

OPR

A

owner’s project requirement

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6
Q

what does the opr include

A

the environmental goals of the project and is issued to the design team

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7
Q

is commissioning agent the same as commissioning authority

A

yes

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8
Q

what is the average payback of commissioning

A

4.8 years

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9
Q

was the is the cost of commissioning

A

$1 per square foot

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10
Q

what is retro-commissioning

A

the commissioning of existing buildings

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11
Q

what is the average payback of retro-commissioning

A

0.7 years

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12
Q

what are the four benefits of CxA

A
  1. minimize or eliminate design flaws
  2. avoid construction defects
  3. avoid equipment malfunctions
  4. ensure preventative maintenance is implemented during operations
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13
Q

what is the baseline standard for energy performance

A

ASHRAE 90.1-2007 Appendix L

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14
Q

ASHRAE

A

American Society of Heating , Refrigerating, and Air Conditioning Engineers

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15
Q

what building components affect energy performance

A
  1. site conditions
  2. building orientation
  3. How much water needs to be heated or cooled
  4. Roof design
  5. building envelope thermal performance
  6. light fixture types and the lamps/bulbs
  7. generating on site renewable energy
  8. commissioning a building
  9. educating occupants and operations and maintenance teams
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16
Q

_________ solar gain in the summer

A

minimize

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17
Q

_________ solar gain in the winter

A

maximize

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18
Q

regulated energy uses

A

lighting, HVAC, service water for domestic and space heating purposes

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19
Q

process energy uses

A

computers, office equipment, kitchen equipment, elevators, and escalators

20
Q

ODP

A

ozone depleting potential

21
Q

GWP

A

global warming potential

22
Q

EBOM must meet three requirements for refrigerants

A
  1. must phase cfc in five years
  2. leak less than five percent
  3. leak less than thirty percent over the remaining life
23
Q

can halons be used for fire supression

24
Q

what should the team refer to to determine which refrigerant to use

A

Montreal Protocol

25
CFC
chlorofluorocarbons
26
HCFC
hydrochlorofluoroccarbons
27
HFC have no ________ but have _________
HFC GFC
28
what has the biggest impact on the ozone depletion
HCFC
29
what is the free online, web based tool to enter usage data to be compared with other buildings
Portfolio Manager
30
what governs refrigerant management and reporting
Clean Air Act Title VI Rule 608
31
What five strategies help to save energy
1. establish design and energy goals 2. Size the building appropriately 3. Use free energy 4. insulate 5. monitor consumption
32
energy use intensity
to get the most out of a unit of energy
33
energy use intensity is measure in
BTU per square feet or kWh/sf/yr
34
BTU
British thermal units
35
kWh/sf/yr
kilowatt hours per square foot per year
36
what energy measurement does most LEED categories use
energy use per square foot
37
what energy measure does LEED Neighborhood Development use
energy use per capita
38
what is the majority of buildings energy use dedicated to
space heating and lighting
39
electricity is measured in
kilowattts
40
natural gas is measured in
therms
41
liquid fuel is measure in
gallons
42
for the purpose of LEED what renewable energy sources are there
solar, wind, wave, biomass, geothermal power, and low-impact hydro power
43
how do you reduce the use of fossil fuels
generate on site renewable energy, and purchase green power
44
what are the four strategies to ensure optimal performance
1. adhere to the OPR 2. provide staff training 3. conduct preventative maintenance 4. create incentives for occupants and tenants
45
what are the four steps to reduce energy
1. reduce demand 2. use energy efficiently 3. assess renewable energy 4. monitor use

LEED (6 decks)

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