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

A

no

24
Q

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

A

Montreal Protocol

25
Q

CFC

A

chlorofluorocarbons

26
Q

HCFC

A

hydrochlorofluoroccarbons

27
Q

HFC have no ________ but have _________

A

HFC GFC

28
Q

what has the biggest impact on the ozone depletion

A

HCFC

29
Q

what is the free online, web based tool to enter usage data to be compared with other buildings

A

Portfolio Manager

30
Q

what governs refrigerant management and reporting

A

Clean Air Act Title VI Rule 608

31
Q

What five strategies help to save energy

A
  1. establish design and energy goals
  2. Size the building appropriately
  3. Use free energy
  4. insulate
  5. monitor consumption
32
Q

energy use intensity

A

to get the most out of a unit of energy

33
Q

energy use intensity is measure in

A

BTU per square feet or kWh/sf/yr

34
Q

BTU

A

British thermal units

35
Q

kWh/sf/yr

A

kilowatt hours per square foot per year

36
Q

what energy measurement does most LEED categories use

A

energy use per square foot

37
Q

what energy measure does LEED Neighborhood Development use

A

energy use per capita

38
Q

what is the majority of buildings energy use dedicated to

A

space heating and lighting

39
Q

electricity is measured in

A

kilowattts

40
Q

natural gas is measured in

A

therms

41
Q

liquid fuel is measure in

A

gallons

42
Q

for the purpose of LEED what renewable energy sources are there

A

solar, wind, wave, biomass, geothermal power, and low-impact hydro power

43
Q

how do you reduce the use of fossil fuels

A

generate on site renewable energy, and purchase green power

44
Q

what are the four strategies to ensure optimal performance

A
  1. adhere to the OPR
  2. provide staff training
  3. conduct preventative maintenance
  4. create incentives for occupants and tenants
45
Q

what are the four steps to reduce energy

A
  1. reduce demand
  2. use energy efficiently
  3. assess renewable energy
  4. monitor use