Investigation of Feasibility of Integral Gas Turbine Engine Solid Particle Inlet Separators. Phase II. Feasibility Demonstration

reportActive / Technical Report | Accession Number: AD0725593 | Open PDF

Abstract:

Two different sand and dust particle separator test rigs were fabricated and tested to evaluate separation efficiency, aerodynamic performance characteristics, and operation in rain and foliage ingestion conditions. The semi-reverse-flow separator utilized fixed turning vanes on a contoured hub to induce swirl in an annular duct. At design airflow of 8 lbsec and 40 scavenge flow, the semi-reverse-flow separator demonstrated 88.5 separation efficiency with AC coarse test dust at an average pressure drop of 2.8 in. H2O. The powered mixed-flow separator attempted to utilize the strong centrifugal field available in a mixed-flow impeller turning at the high speeds characteristic of small gas turbine engines to achieve particle separation. At the design airflow of 8 lb sec, it demonstrated a maximum separation efficiency of 58.7 with 8.4 scavenge flow and an average pressure rise of 6.76 psi. Both separator concepts were determined to be feasible and the semi-reverse-flow separator is considered to be superior to current engine air particle separators for the majority of aspects investigated.

Author(s):
Mcanally, William J., Iii ; Schilling, Max T.
Author Organization(s):
PRATT AND WHITNEY AIRCRAFT WEST PALM BEACH FL FLORIDA RESEARCH AND DEVELOPMENT CENTER
Descriptive Note:
Final rept.
Supplementary Note:
See also Phase 1, AD875953. DOI: 10.21236/AD0725593
Pagination:
0065

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release
Distribution Statement:
Approved For Public Release; Distribution Is Unlimited.

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
PWA-FR-4197, USAAVLABS-TR-71-13
Contract/Grant Number(s):
DAAJ02-70-C-0003
Task Number(s):
1G162207AA7104
Project Number(s):
DA-1-G-162207-AA-71
Monitor Series:
TR-71-13, USAAVLABS
 Subject Terms
Joint Capability Areas:
JCA_5_Command and Control; JCA_5.3_Planning; JCA_4.6_Engineering; JCA_4.6.1_General Engineering; JCA_1_Force Support; JCA_1.2_Force Preparation; JCA_1.2.6_Concepts; JCA_5.3.3_Develop Strategy; JCA_5.3.4_Develop Courses of Action; JCA_5.3.5_Analyze Courses of Action; JCA_5.5.2_Task; JCA_5.5_Direct; JCA_3.2_Engagement; JCA_3_Force Application; JCA_6_Net Centric
Communities of Interest:
Air Platforms
Descriptor(s):
*AIR FILTERS, *GAS TURBINES, *HELICOPTER ENGINES, DUST, FEASIBILITY STUDIES, INGESTION(ENGINES), SAND, SEPARATION
Field(s)/Group(s):
Jet and Gas Turbine Engines
Report Date:
1971 Apr 01