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Building Tech: Control Systems > Exam #1 > Flashcards

Exam #1 Flashcards

1
Q

What is a system?

A

Combines interrelated interacting artifacts designed to work as a coherent entity.

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2
Q

MEP/FP

A

Mechanical, Electrical, Plumbing, Fire Protection

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3
Q

Mechanical

A

Heating, air conditioning

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4
Q

Mechanical System Example

A

HVAC, Plumbing, Fire Protection

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5
Q

Electrical

A

lighting. power

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6
Q

Electrical System Example

A

Power Distribution, lighting, low voltage

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7
Q

Plumbing

A

toilets, sink

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8
Q

Fire Protection

A

Sprinkler systems

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9
Q

Animal Skeleton –> Building System

A

Skeleton- Structure
Skin- Envelope
Blood Circulation- Heating/Cooling Systems
Nervous System- Electrical
Digestive System- Plumbing

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10
Q

HVAC

A

Heating, Ventilation, Air Conditioning

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11
Q

Temperature

A

Measurement of stored energy.

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12
Q

Heat

A

Energy that is transferred from one body to another.

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13
Q

BTU

A

British Thermal Unit (Measurement of Energy). The amount of heat it takes to heat up one pound of water one degree in one hour. Similar to the flame of a birthday candle.

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14
Q

Ton

A

Measurement of energy
Amount of energy it takes to melt one ton of ice in one hour.

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15
Q

How many BTU makes up a ton?

A

12,000 BTU = 1 ton

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16
Q

Radiation

A

Thermal- between two bodies that aren’t conducted. ( the Sun and Earth)

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17
Q

Conduction

A

Heat transferred to a new solid. One hot, one cold, even out in temperature.

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18
Q

Convection

A

Heat transferring to a liquid.

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19
Q

Six S’s

A

Skin, Structure, Systems (heat, power, etc.), Space dividers (walls, doors, etc.), Stuff (Furniture), and Site.

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20
Q

How do buildings interfere with people?

A
  1. Comfort
    a. lighting
    b. temperature
    c. humidity
    d. drafts
    e. acoustics
    2.Building functions dictate interior
  2. Safety
  3. Quality of life
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21
Q

Where does heat come from inside a building?

A

Envelope- Sun shining through glass
People- heat, moisture
Lighting/equipment

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22
Q

Dry Bulb

A

Actual air temperature

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23
Q

Wet Bulb

A

Amount of Moisture in the air

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24
Q

Sick Building Syndrome

A

When a building did not have enough ventilation, all contaminates stayed in the building.

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25
Q

What causes sick building syndrome?

A

Lack of fresh air (ventilation)
Smoking
VOC- Formaldehyde in materials and finishes

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26
Q

IAQ

A

Indoor Air Quality
Code driven, as important as ADA

27
Q

CFM

A

Cubic Feet per Minute (FT^3/min.)
Air moving, size of a basketball

28
Q

What is the rule of thumb for CFM?

A

1 CFM per square foot of space

29
Q

Refrigeration cycle

A

Study Diagram

30
Q

Types of Air Conditioners

A

Window, rooftop, Split system

31
Q

Heat Pump

A

Reverse Refrigerant Cycle

32
Q

Water Cooled Systems

A

Water pulls away heat faster

33
Q

Air Cooled Systems

A

Fans are used to cool down

34
Q

Greenwashing

A

Making something seem more sustainable than it actually is

35
Q

Hydronic System

A

Study Diagram

36
Q

4 Pipe System

A

one pipe supplies cold water, One pipe supplies warm water, one pipe pulls out cold water, one pipe pulls out warm water.

37
Q

Radiant floors

A

Piping under finished floor using warm water to heat up the floor.

38
Q

Radiant panels

A

Ceiling panels, wall panels, under desk mobile panels.

39
Q

Forced air systems

A

heaters and ductwork

40
Q

Diffusers

A

Round, square, linear slot, linear bar grilles

41
Q

Coanda Effect (diffusers)

A

Air spreads across the ceiling mixing in new air.

42
Q

Linear Slot Diffuser

A

Applied near windows

43
Q

Linear Bar Grilles

A

Full meatal architectural features, applied near windows.

44
Q

Baseboard heaters

A

Electric or hot water

45
Q

Things above the ceiling

A

Ductwork, pipes, VAV boxes, fan powered boxes

46
Q

VAV Boxes

A

Variable Air Volume- used to control space temperature by changing or varying the air volume.

47
Q

Fan Powered Boxes

A

Used when main system is off usually at night. Heats/cools perimeter of a building.

48
Q

VRF

A

Variable Refrigerant Flow- multiple indoor units with one outdoor unit.

49
Q

Ground Source HVAC

A

Geothermal- utilizes the ground to absorb and store heat.

50
Q

Green Initiatives

A

Premium efficient equipment, CO2 monitoring

51
Q

Underfloor Systems

A

12” spacing under the finished floor to allow clean air to come through vents on the floor pushing the old air out through vents on the ceiling.

52
Q

Churn

A

When offices change from one office type to another

53
Q

What is the purpose of solar design

A

Free heating

54
Q

Solar design principles

A

Solar angles based on the season

55
Q

Overhang

A

Light shelf for South facing walls, effective for indirect light, direct solar heating, shading at high solar angles.

56
Q

light Shading

A

Blocks direct summer sun, allows winter sun to warm, extends daylight in a space.

57
Q

Mass Wall

A

Uses the mass of the building to heat at night

58
Q

Trombe Wall

A

Study Diagram

59
Q

Domestic Hot Water

A

The sun heats water through a tank on the roof. Not good for cold climates.

60
Q

Evacuated Tubes

A

Heat water in the tubes, can be used in cold climates.

61
Q

Steam generation

A

Uses steam to heat up a space. Study Diagram
Heliostats- mirrors that move with the sun

62
Q

Photovoltaic

A

Calculator style of solar power

63
Q

Wind Turbines

A

Windmills, the sun is what creates wind

Building Tech: Control Systems (2 decks)

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