The document presents a project on using geothermal energy for cooling, detailing its sources, generation methods, loop types, and key components. It highlights the advantages of geothermal systems, such as reduced operational costs and environmental benefits, while also mentioning the high initial installation costs and space requirements. The future scope indicates potential for energy crisis solutions and substantial savings in cooling and heating costs compared to conventional systems.

1. A
PROJECT PRESENTATION
ON
“COOLING BY GEOTHERMAL
ENERGY”
Department of Mechanical Engineering
Presented by:-
DHEERAJ PATIDAR
1

2. Cooling by Geothermal energy
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3. content:-
• Geothermal energy
• Resources of geothermal energy
• Generation
• Introduction
• Energy source
• Geothermal Performance Comparison
• Loop types
• Components used
• Construction
• Working
• Advantages
3
•Disadvantages
•Future scope
•Application
•Conclusion

4. 4
Geothermal
Geothermal
Greek word
Geo = Earth
Thermal= Heat
It’s means heat provide by the earth
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5. Val canoesMagma Resources
Petro-thermal
Hydro-thermal
Geo pressured
Resources of Geothermal Energy
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6. Generations
Direct
• Small scale uses
• Heating homes
• Hot springs
• Greenhouse heating
• Food dehydration plants
• Agriculture
Electrical
• Dry steam
• Flash steam
• Binary cycle
6

7. Introduction
• The earth loop is placed in the ground either horizontally
or vertically, or it can be placed in a pond.
• Water and anti-freeze is circulated through the pipe,
transporting heat to the heat pump during the heating
mode and away from the heat pump during the cooling
mode.
• The heat transfer takes place inside the heat pump in a
water-to-refrigerant heat exchanger.
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8. Energy Source
• During the heating season, the earth serves as a heat
source. (HE - Heat of extraction)
• During the cooling season, the earth serves as a heat
sink. (HR - Heat of rejection)
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9. Free Energy
• Geothermal Heat Pumps use only a small amount of
energy to capture a large amount of FREE energy from
the earth.

10. Equipment Performance Ratings
• ARI has designated the efficiency ratings for water-to-air
heat pumps as:
– Energy Efficiency Ratio (EER)
• EER = BTU output divided by power watt input
• For cooling operation under steady state test
conditions
– Coefficient of Performance (COP)
• COP = BTU output divided by BTU input
• For heating operation under steady state test
conditions

11. Geothermal Performance Comparison
0
5
10
15
20
25
30
Cooling Efficiency (EER)
New Geothermal Unit
Previous Geothermal Unit
High Efficiency AC or Heat
Pump
Ordinary Air Conditioner or Heat
Pump

12. Geothermal Performance Comparison
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
4.5
5.0
Heating Efficiency (COP)
New Geothermal Unit
Previous Geothermal Unit
Heat Pump
High Efficiency Gas/Propane
Furnace
Ordinary Gas/Propane Furnace

13. Loop Types
• Can be cheaper initial
install cost
• If walls is fails no heating
or cooling
• Not allowed in some local
areas
• High maintenance
• Uses existing well
Open Loop system
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14. Closed loop systems
• Low maintenance
• Typical one time install, long warranty on pipe
• Higher up front installation cost
• Requires dedicates space for wells or trenches
➢ Types of closed loop system
1) Horizontal loop
2) Vertical loop
3) pond loop
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15. Vertical Loop Pond Loop
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16. Horizontal Loop
• If adequate soil or clay
based land is available &
it’s more economical
choice
• A typical horizontal loop
will have 400-600 feet of
pipe for heating & cooling
• Because of the amount
trenching involved
horizontal ground loops
are most commonly used
for new construction
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17. Components used:-
• Loop of G.I pipes (size- 1.0 inch, 370 feet)
• Heat exchanger (Radiator)
• Mono block pump (0.5 HP)
• Coolant (Water)
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18. Construction of project:-
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19. 19

20. 20

21. working:-
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22. Cooling Mode Operation
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23. Heating Mode Operation
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24. Advantages
• Geothermal system are able to transfer heat to the ground
with minimum use of electricity
• Geothermal system are environment friendly
• Based on renewable energy source
• Don’t use fuel for heating & cooling purpose
• Geothermal system are more reliable and efficient compare
to the conventional system
• Operating and maintenance cost is so low
• It’s least polluting compared to the other conventional
energy sources
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25. Advantages
• Once we built a geothermal power station then the
energy is almost free
• Geothermal heat pump are especially well matched to
under floor heating system which don’t require
extremely high temp.
• With use of geothermal system it’s consumption level of
electricity is so low compared to the conventional system
• No sticky feeling
• Additional cost of geothermal system is usually recovered
in about 5 years.
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26. Disadvantages
• Largest areas are needed for exploitation of geo-thermal
energy as much of it’s diffused
• Installation cost is so high
• Once we built geothermal loop system then we don’t
change it
• Required hot rock of a suitable type at a depth where we
can drill down to them
• Hazardous gases & minerals may come up from
underground and can be difficult to safely dispose of
• Largest amount of work’s are required
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27. Future scope:-
• With use of geothermal system in future it’s solve out to the
energy crisis problem at a level
• Geothermal system its reduce energy consumption cost
with comparison of conventional Energy sources
As:-
1) Reduce cooling cost up to 35%
2) Reduce heating cost up to 50%
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28. 28
Application
• Generation of electric power
• Industrial Process heat
• Food processing
• Space heating for building
• Bathing facilities
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29. Conclusion
• It’s consume less electricity compare to the conventional
system
• It’s least polluting compared to the other conventional energy
sources
• Even with the high initial cost of purchasing a geothermal
system the payback period is relatively short b/w 3 to 5years
• The life span of the system is longer than conventional
heating & cooling system most loop fields are warranted for
25 to 50 years &expected to at least 50 to 200 years
• Compare with geothermal system to the conventional system
it’s save to 30 to 70 % energy annually
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30. Cornerstone Christian Academy
51,000 Sq. Ft.
Annual Cost for Heating, Air
Conditioning, and Hot Water
Conventional System Geothermal System
$32,618 $8,519
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31. Martin Implement
Quincy, IL
29,225 Sq. Ft.
Annual Cost for Heating, Air
Conditioning, and Hot Water
Conventional System Geothermal System
$13,986 $3,581
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32. Trinity Lutheran Church
Golden, IL
16,000 Sq. Ft.
Annual Cost for Heating, Air
Conditioning, and Hot Water
Conventional System Geothermal System
$12,926 $3,984
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