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Title: Heat pipe turbine vane cooling

The applicability of using heat pipe principles to cool gas turbine vanes is addressed in this beginning program. This innovative concept involves fitting out the vane interior as a heat pipe and extending the vane into an adjacent heat sink, thus transferring the vane incident heat transfer through the heat pipe to heat sink. This design provides an extremely high heat transfer rate and a uniform temperature along the vane due to the internal change of phase of the heat pipe working fluid. Furthermore, this technology can also eliminate hot spots at the vane leading and trailing edges and increase the vane life by preventing thermal fatigue cracking. There is also the possibility of requiring no bleed air from the compressor, and therefore eliminating engine performance losses resulting from the diversion of compressor discharge air. Significant improvement in gas turbine performance can be achieved by using heat pipe technology in place of conventional air cooled vanes. A detailed numerical analysis of a heat pipe vane will be made and an experimental model will be designed in the first year of this new program.
Authors:
;  [1]
  1. Connecticut Univ., Storrs, CT (United States). Dept. of Mechanical Engineering
Publication Date:
OSTI Identifier:
219345
Report Number(s):
DOE/MC/29061--96/C0679; CONF-9510109--26
ON: DE96008955; TRN: AHC29609%%76
DOE Contract Number:
FC21-92MC29061
Resource Type:
Conference
Resource Relation:
Conference: Advanced turbine systems (ATS) annual review, Morgantown, WV (United States), 17-18 Oct 1995; Other Information: PBD: [1995]
Research Org:
South Carolina Energy Research and Development Center, Clemson, SC (United States); Connecticut Univ., Storrs, CT (United States). Dept. of Mechanical Engineering
Sponsoring Org:
USDOE, Washington, DC (United States)
Country of Publication:
United States
Language:
English
Subject:
20 FOSSIL-FUELED POWER PLANTS; VANES; COOLING; GAS TURBINES; HEAT PIPES; THERMAL STRESSES; ENERGY EFFICIENCY