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Cooling systems for ultra-high temperature turbines.
1Aircraft Propulsion Research Center, National Aerospace Laboratory 7-44-1 Jindaiji-higashi, Chofu, Tokyo 182-8522, Japan.
Annals of the New York Academy of Sciences
|July 20, 2001
Summary
This study explores steam and water cooling for gas turbines operating at 1500-1700°C, introducing a novel heat pipe cooling system. Promising heat transfer capabilities were confirmed through experimental data and simulations.
Area of Science:
- Mechanical Engineering
- Thermal Engineering
- Materials Science
Background:
- Gas turbines require advanced cooling for operation at extreme temperatures (1500-1700°C).
- Traditional cooling methods face challenges at these elevated thermal loads.
Purpose of the Study:
- To introduce research and development on steam cooling for high-temperature gas turbines.
- To describe a new cooling system utilizing heat pipes.
- To evaluate the heat transfer performance and applicability of these cooling methods.
Main Methods:
- Experimental investigation of steam and water cooling techniques.
- Development and description of a novel heat pipe cooling system.
- Numerical evaluation of engine performance and heat transfer.
Main Results:
- Demonstrated promising applicability of steam cooling at 1500-1700°C.
- Experimental data confirmed effective heat transfer.
- Numerical analysis supported the viability of the heat pipe system.
Conclusions:
- Steam cooling presents a viable solution for high-temperature gas turbine operation.
- The novel heat pipe system shows significant potential for enhancing gas turbine thermal management.
- Further development is warranted based on positive experimental and simulation results.