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Alternative Energy Systems > [L6]_Geothermal Systems > Flashcards

[L6]_Geothermal Systems Flashcards

1
Q

ENGY-775

What company is leading the rearching forefront on Ultra-Deep Geothermal Well drilling?

[L6]

A

Quaise, a MIT spin-off company utilizing hijacking fusion technology to create ultra deep bore holes.

[L6]

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2
Q

ENGY-775

How do soil type and moisture affect geothermal heat pump performance?

[L6]

A

The designer must take into account soil over saturation due to the timeline of the geothermal projects installation thus reducing effectiveness of the system.

[L6]

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3
Q

ENGY-775

What is the typical distance minimum required between two (2) horizontal closed loop trenches project?

[L6]

A

10-FT minimum between Trenches

[L6]

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4
Q

ENGY-775

What is the frost depth level so that potable water in an underground pipe does not freeze?

[L6]

A

5-Feet or deeper.

[L6]

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5
Q

ENGY-775

What is special about Quaise’s ultra deep well drilling rig?

[L6]

A

Quaise’s hybrid ultra-deep drilling rig will combine traditional rotary drilling with
gyrotron-powered millimeter-wave directed energy drilling, pressure-purged with
electromagnetically-transparent argon gas.

[L6]

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6
Q

ENGY-775

What is the temperature range required to process beet sugar evaporation with geothermal energy?

[L6]

A

225°F to 275°F

[L6]

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7
Q

ENGY-775

What is the definition of pressure gradient?

[L6]

A

The direction of a medium whether a fluid or air that describes the direction and rate at which the pressure increases the fastest around a single location.

[L6]

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8
Q

ENGY-775

Name the four (4) geothermal piping loop design segments available to choose from.

[L6]

A
  1. Vertical Closed Loop
  2. Horizontal Closed Loop
  3. Horizontal Coils (Slinky Design)
  4. Vertical Open Loop

[L6]

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9
Q

ENGY-775

What is the operational system downtime for a geothermal power system per day typically?

[L6]

A

None. Geothermal power systems provide power 24-hrs a day.

[L6]

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10
Q

ENGY-775

What are the four (4) typical fluid mediums used for Geothermal Heat Pump projects?

[L6]

A
  1. Propylene Glycol
  2. Ethanol
  3. Methanol
  4. CPTherm

[L6]

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11
Q

ENGY-775

What is the temperature range required to process geothermal heat pump systems with geothermal energy?

[L6]

A

40°F to 70°F

[L6]

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12
Q

ENGY-775

How does a desuperheater work in a geothermal heat pump system?

[L6]

A

A desuperheater is a device that extracts excess heat from the system and transfers it to a water tank, where it can be used to provide hot water for domestic use.

[L6]

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13
Q

ENGY-775

Name the four (4) geothermal deep well power system cycle types.

[L6]

A
  1. Dry Steam Power Plant
  2. Single Flash Steam Power Plant
  3. Binary Cycle Power Plant
  4. Double Flash Power Plant

[L6]

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14
Q

ENGY-775

What is the item in the image?

[L6]

A

Geothermal Heat Pump hydronic supply and return header control vault

[L6]

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15
Q

ENGY-775

List four (4) potential contaminents due to geothermal drilling projects.

[L6]

A
  1. Risk of water contamination
  2. Land subsidence
  3. Emissions from drilling equipment
  4. Noise pollution

[L6]

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16
Q

ENGY-775

What is the best piping design configuration for a vertical bore closed loop geothermal heat pump project?

[L6]

A

Parallel Reverse Return Piping Layout

[L6]

17
Q

ENGY-775

What is the temperature range required to process binary power plants with geothermal energy?

[L6]

A

200°F to 350°F

[L6]

18
Q

ENGY-775

What is the temperature range required to process hydrogen production with geothermal energy?

[L6]

A

350°F to 700°F

[L6]

19
Q

ENGY-775

What is the depth of the deepest drill bore hole in the world?

[L6]

A

The deepest drilled hole into the earth’s crust is claimed to be 12,262 meters
(7.5 miles) in 1970 over the Kola peninsula in Russia.

[L6]

20
Q

ENGY-775

What is the GPM/ton range required for a typical cooling design?

[L6]

A

2 to 3-GPM/Ton of Cooling

[L6]

21
Q

ENGY-775

Name the five (5) layers of planet Earth from the outer to core layers?

[L6]

A
  1. Atmosphere
  2. Crust
  3. Mantle
  4. Outer Core of Molten
  5. Solid Metal Inner Core

[L6]

22
Q

ENGY-775

What is the crush depth of an American Seawolf Nuclear Submarine?

[L6]

A

2,400-FT or 730-meters & 1,073-psi

[L6]

23
Q

ENGY-775

What is the typical distance minimum required between two (2) vertical bores for a closed loop project?

[L6]

A

20-FT minimum between vertical bore wells

[L6]

24
Q

ENGY-775

Goethermal heating & cooling systems can be a cost saving system but the current ROI is too long to be considered easily profitable projects. What is condsidered the profitable ROI time frame?

[L6]

A

An ROI of 5 years or less.

[L6]

25
Q

ENGY-775

Name the four (4) layers of Earth’s atmosphere.

[L6]

A
  1. Troposphere
  2. Stratosphere
  3. Mesosphere
  4. Thermosphere

[L6]

26
Q

ENGY-775

What is the maximum permissible percentage of kW for a geothermal heat pump’s pumping system?

[L6]

A

A maximum of 10% kW of all system power.

[L6]

27
Q

ENGY-775

What is the typical range of depth for a vertical bore in regards to geothermal heat pump project?

[L6]

A

100-FT to 500-FT of depth

[L6]

28
Q

ENGY-775

What does the definition of Geothermal translate to?

[L6]

A

Heat from the earth. [Geo = Earth; Thermal = Heat]

[L6]

29
Q

ENGY-775

What is the life expectancy of a geothermal heat pump system?

[L6]

A

A geothermal heat pump system can have a life expectancy of 20-25 years for the heat pump unit and up to 50 years for the ground loop system with proper maintenance and care.

[L6]

30
Q

ENGY-775

What does the certification CGD mean?

[L6]

A

Certified GeoExchange Designer

[L6]

Alternative Energy Systems (6 decks)

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