USING GEOTHERMAL
ENERGY TO HEAT AND
COOL RESIDENTIAL
BUILDING
Prepared by: Will Frey iii
SUMMARY
• Project Goal
• Design Criteria
• Overview of a Geothermal Unit
• Advantages of Using the System
• Cost Analysis
...
Project Goal
• To come up with cost effective
system to heat and cool residential
homes
• Calculate the required unit size
Design Criteria
• Environmental Friendliness
• Cost Effectiveness
• Educational
Alternative Energy Sources
• Geothermal for heating and
cooling
Geothermal Energy
• Geothermal Energy is heat
contained within the earth
that is recovered and put to
useful work.
Geothermal Energy
• Geothermal heat pump
(GHP) is a highly efficient
device for renewable energy
recovery.
Principals of Geothermal
heating and cooling
• The GHP is an electrically
powered system that uses
earth’s constant ground...
Principals of Geothermal
heating and cooling
• Geothermal systems have three
principal components:
» Earth connection
» Pu...
Earth Connection
The earth connection is a series
of pipes called a “loop” used to
connect the GHP to the heat
source belo...
Closed Loop System
Closed loop system consists of
using high density polyethylene
pipe which is:
–Buried horizontally in t...
Closed Loop System
Most sites can accommodate
one of these closed loop systems.
The pipes are filled with water
solution w...
Closed Loop System
Open Loop System
• Open Loop System uses a water source like
a lake, river, or well for its source of heat.
After exchangi...
Heat Pump - Exchange heat with
the earth connection and use the
energy to heat or cool the
building.
Advantages of using
Geothermal Energy
• Environmentally friendly: helps
minimize problems like acid rain, air
pollution an...
Cost Analysis
• HOUSE HAS 1283 sq. ft.
• CALCULATED HEAT LOSS 26925 BTU/hr
• REQUIRED 2 TON GEOTHERMAL UNIT
• 300 FEET OF ...
Conclusion
DISPITE HIGH INITIAL COST
GEOTHERMAL IS FAR THE BEST
WAY TO HEAT RESIDENTIAL
HOMES. SYSTEM IS PROVEN TO
BE ENVI...
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Will frey-geothermal-powerpoint

  1. 1. USING GEOTHERMAL ENERGY TO HEAT AND COOL RESIDENTIAL BUILDING Prepared by: Will Frey iii
  2. 2. SUMMARY • Project Goal • Design Criteria • Overview of a Geothermal Unit • Advantages of Using the System • Cost Analysis • Conclusion • Acknowledgments
  3. 3. Project Goal • To come up with cost effective system to heat and cool residential homes • Calculate the required unit size
  4. 4. Design Criteria • Environmental Friendliness • Cost Effectiveness • Educational
  5. 5. Alternative Energy Sources • Geothermal for heating and cooling
  6. 6. Geothermal Energy • Geothermal Energy is heat contained within the earth that is recovered and put to useful work.
  7. 7. Geothermal Energy • Geothermal heat pump (GHP) is a highly efficient device for renewable energy recovery.
  8. 8. Principals of Geothermal heating and cooling • The GHP is an electrically powered system that uses earth’s constant ground temperature to provide heating and cooling needs.
  9. 9. Principals of Geothermal heating and cooling • Geothermal systems have three principal components: » Earth connection » Pump » Distribution
  10. 10. Earth Connection The earth connection is a series of pipes called a “loop” used to connect the GHP to the heat source below ground. There are two types of loop system: - Closed loop system - Open loop system
  11. 11. Closed Loop System Closed loop system consists of using high density polyethylene pipe which is: –Buried horizontally in trenches 4-6 feet deep or placed on the bottom of a large pond or lake –Vertical pipes placed in bore hole 150- 250 feet deep.
  12. 12. Closed Loop System Most sites can accommodate one of these closed loop systems. The pipes are filled with water solution which will exchange heat energy between the earth and the GPH.
  13. 13. Closed Loop System
  14. 14. Open Loop System • Open Loop System uses a water source like a lake, river, or well for its source of heat. After exchanging heat with the GPH the water is returned to its source.
  15. 15. Heat Pump - Exchange heat with the earth connection and use the energy to heat or cool the building.
  16. 16. Advantages of using Geothermal Energy • Environmentally friendly: helps minimize problems like acid rain, air pollution and destruction of the ozone layer with zero emission of pollution • High efficiency: can reduce electricity used for heating and cooling up to 40% • Low maintenance cost: fewer parts, reliable system with life expectancy of over 50 years.
  17. 17. Cost Analysis • HOUSE HAS 1283 sq. ft. • CALCULATED HEAT LOSS 26925 BTU/hr • REQUIRED 2 TON GEOTHERMAL UNIT • 300 FEET OF PIPING CLOSE LOOP SYSTEM • TOTAL COST $12000 • SYSTEM WILL PAYBACK IN 15 YEARS
  18. 18. Conclusion DISPITE HIGH INITIAL COST GEOTHERMAL IS FAR THE BEST WAY TO HEAT RESIDENTIAL HOMES. SYSTEM IS PROVEN TO BE ENVIRONOMANTALY FRIENDLY AS WELL AS COST EFFECTIVE

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