Basic ideas of geothermal energy, types of geothermal plants,How do we extract it ?,applications ,advantages and disadvantages.

1. Presented by ,
KOUSHIK K
NAVEEN KUMAR M
PRADEEP P
JAY KRISHNA SAI

2. What is geothermal energy????

4. AVAILABILITY OF GEOTHERMAL
ENERGY IN INDIA

5. HOW it is extracted????

6. HYDRAULIC FRACTURING
O Hydraulic fracturing is a well-stimulation
technique used commonly in low-permeability
rocks like tight sandstone, shale, and some
coal beds to increase oil and/or gas flow to a
well from petroleum-bearing rock formations.
A similar technique is used to create improved
permeability in underground geothermal
reservoirs. A form of hydraulic fracturing is
also used in low permeability sediments and
other tight subsurface formations to increase
the efficiency of soil vapor extraction and
other technologies used in remediating
contaminated sites…

7. Types of Steam Power Plants
O Dry steam power plant

8. FLASH STEAM POWERPLANT

9. BINARY POWERPLANT

10. CO2 emissions

11. Temperature drop in hot water
transmission lines

12. GROWTH RATE AND ANNUAL UTILIZATION.

13. THERMAL POWER EXTRACTION WITH
TIME

14. Applications
O Snow Melting and Space Cooling.
O Space heating.
O Agri business applications.
O Aquaculture pond and raceway heating.
O Industrial applications and agriculture
drying.

15. Other Applications

16. Limitations
O Direct temperature requirements

17. AIR POLLUTION

18. O Noise pollution: Wells newly drilled or during
maintenance having noise level of 90-120 dB
at free discharge and 70-90 dB through
silencer
O Water pollution: Reinjection is normally less
expensive than no injection
O Land subsidence: as fluids are removed , pore
pressure is reduced and ground tends to
subside.less subsidence is expected with
harder reservoir rock.

19.  REFERENCES
• A theoretical study of geothermal energy extraction :
Francis H. Harlow and william E. pracht
• Geothermal energy technology and current status:
an overvivew :
Enrico Barbier
• Direct utilization of geothermal energy:
John W. Lund

20. THANK YOU 