1. Pipeline CAES system for storing and transporting wind energy
Preksha Nair

2. Outline Compressed Air Pipeline System (CAPS)
Design of Pipeline System – Various Factors
Route Selection
Materials
Size and operating pressure
Cost
Challenges
Conclusion

3. Compressed Air Pipeline System (CAPS)
Grid
Motor
Compressor
Energy Storage
Expander
Turbine
Generator

4. Design Of Pipeline System
Corridor
Geographical Information
Engineering Considerations
Route Selection
Durability
Strength
Steel
Materials
psia
600 psia and above desirable
Size and operating pressure
Factor of size and length
Cost

5. Extreme pressure Conditions
Different diameter
100-mile, 200 psia
3 ft. diameter Pressure drop of more than 20 psia.
4 ft. diameter Pressure drop of less than 10 psia.
Extreme pressure Conditions
100-mile, 3 ft. diameter
200 psia Pressure drop more.
1200 psia Pressure drop less.

6. Breakdown of construction cost

7. Comparing cost of transmission lines and pipeline system, 2011
Voltage, kV
Overhead Transmission Line Cost Per Mile
Underground Transmission Line Cost Per Mile 69
$285,000
$1.5 million
138
$390,000
$2 million
Size, Inches
Pipeline Cost Per Mile on Land
Underground Pipeline Cost Per Mile 12
$300,000
$420,000 48
$1.5 million
$1.6 million

8. Challenges
Air leakage
Moisture
Pressure
Invest

9. conclusion
Successful
System
Regulatory Considerations
Economics
Safety & Environmental Issues
The basic concept of compressed air energy storage has existed for decades, and has been commercially available for over 30 years. It never caught on much and became mainstream. However, as the need for energy storage grew greater, CAES became more attractive, especially with the advancements in technology discussed earlier.
Review of CAPS shows that pipeline system is a viable alternative for storing and transporting wind energy.

10. References
Doug Evans, “Pipeline route selection – the route to success”. Oilandgastechnology.net (2013)
Enis Ben M.  and Lieberman Paul; “Method of storing and transporting wind generated energy using a pipeline system”.
Imtiaz Rastgar, “Effect of Corrosion in Steel Pipes”. Pakistan Textile Journal (2013)
Frank Alonso and Carolyn A.E. Greenwell, “Underground vs. Overhead: Power Line Installation-Cost Comparison and Mitigation”. elp.com (2013)
Anon, “Oil Industry Value Chain Economics”. beg.utexas.edu (2011)
Anon, “Cost of pipelines”. hub.globalccsinstitute.com (2012)

11. Thank you!