SAE-AIR-5295-1998-R2007.pdf
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1、AEROSPACE INFORMATION REPORT AIR5295 Issued1998-10 Design Considerations for Enclosed Turboprop Engine Test Cells FOREWORD Enclosed turboprop engine test cells are needed to provide a controlled environment during engine testing. Ever increasing sophisticated engine technology, performance requireme
2、nts and safety and environmental concerns continually generate the need to improve test cell designs. This SAE Aerospace Information Report (AIR) will assist those involved in designing new or significantly modified enclosed turboprop engine test cells used to test propeller equipped engines by docu
3、menting design considerations compiled from a broad spectrum of industry and government specialists in this field. The intent is to provide a general discussion of design features that impact the capability of the test cell to provide safe, accurate and repeatable performance tests of propeller equi
4、pped bare and complete nacelle quick engine change (QEC), configured engines. The information provided is also intended to add to the understanding of the significance of the aerodynamics of the propeller equipped enclosed engine test cell environment. Propeller equipped turboprop engines operating
5、in an enclosed engine test cell generate/encounter conditions directly attributable to the design characteristics of the test cell. Although in a very broad sense some of the conditions are common to all engine test cells, there are some that are unique to operations of propeller equipped engines in
6、 enclosed test cells. This report provides some of the most important factors that must be considered when designing an enclosed test cell for testing those engines. Desired engine performance, aero/thermodynamics, acoustic capability, mechanical integrity and safety requirements are described. SAE
7、Technical Standards Board Rules provide that: “This report is published by SAE to advance the state of technical and engineering sciences. The use of this report is entirely voluntary, and its applicability and suitability for any particular use, including any patent infringement arising therefrom,
8、is the sole responsibility of the user.” SAE reviews each technical report at least every five years at which time it may be reaffirmed, revised, or cancelled. SAE invites your written comments and suggestions. Copyright 2007 SAE International All rights reserved. No part of this publication may be
9、reproduced, stored in a retrieval system or transmitted, in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without the prior written permission of SAE. TO PLACE A DOCUMENT ORDER: Tel: 877-606-7323 (inside USA and Canada) Tel: 724-776-4970 (outside USA) Fax:
10、724-776-0790 Email: CustomerServicesae.org SAE WEB ADDRESS: http:/www.sae.org Reaffirmed 2007-11 Copyright SAE International Provided by IHS under license with SAELicensee=Defense Supply Ctr/5913977001 Not for Resale, 12/04/2007 19:18:58 MSTNo reproduction or networking permitted without license fro
11、m IHS -,-,- SAE AIR5295 - 2 - TABLE OF CONTENTS FOREWORD.1 1.SCOPE .3 1.1Purpose3 2.REFERENCES .3 3.TECHNICAL BACKGROUND.4 4.TEST CELL SYSTEM DESIGN CONSIDERATIONS.4 4.1Inlet Section .9 4.2Test Chamber.10 4.3Augmentor .12 4.4Exhaust Section.13 5.EMPIRICAL AERODYNAMIC DATA/INFORMATION.14 6.EMPIRICAL
12、ACOUSTIC DATA/INFORMATION.14 7.FACTORS FOR EVALUATING TEST CELL PERFORMANCE16 7.1Front Cell Velocity Distortion17 7.2Front Cell Temperature Distortion17 7.3Front Cell Airflow18 7.4Engine Inlet Total Pressure Distortion18 7.5Engine Inlet Temperature Distortion.19 7.6Cell Depression19 8.SUMMARY OF GEN
13、ERAL TEST CELL OPERATIONAL REQUIREMENTS AND GOALS.20 9.CONCLUSION21 FIGURE 1Turboprop Engine Test Cell With Horizontal Inlet and Exhaust Sections Without Inlet Courtyard or Orifice Wall5 FIGURE 2Turboprop Engine Test Cell With Horizontal Inlet and Exhaust Sections With Inlet and Exhaust Courtyards a
14、nd Orifice Wall .6 FIGURE 3Turboprop Engine Test Cell With Vertical Inlet and Horizontal Exhaust Sections and Orifice Wall 7 FIGURE 4Turboprop Engine Test Cell With Horizontal Inlet and Vertical Exhaust Sections Without Courtyards or Orifice Walls .8 Copyright SAE International Provided by IHS under
15、 license with SAELicensee=Defense Supply Ctr/5913977001 Not for Resale, 12/04/2007 19:18:58 MSTNo reproduction or networking permitted without license from IHS -,-,- SAE AIR5295 - 3 - 1.SCOPE: This document is offered to provide state-of-the-art information about design factors that must be consider
16、ed in the design of new or significantly modified engine test cells used to test propeller equipped turboprop engines in either QEC or bare engine configurations. The report does not address design considerations for test cells designed to test turboprop engines with dynamometer type load absorption
17、 devices because they are essentially tested as turboshaft engines. Design considerations for those test cells are presented in AIR4989, Reference 2.1. 1.1Purpose: a.Provide guidelines for factors that must be considered to design state-of-the-art enclosed engine test cells used to test propeller eq
18、uipped turboprop engines. b.Provide empirical data/information about aerodynamic characteristics of propeller equipped engine testing in enclosed test cells. c.Provide empirical acoustic data/information from propeller equipped engine test operations in enclosed test cells. 2.REFERENCES: 2.1AIR4989
19、- Design Considerations for Enclosed Turboshaft Engine Test Cells. 2.2NFPA 423 - Standard for Construction and Protection of Aircraft Engine Test Facilities. 2.3Naval Air Warfare Center, Patuxent River Maryland, Propulsion Support Equipment Branch, TECHEVAL Multi-Capability Turboshaft/Prop Engine Te
20、st Facility Complex, A/F 37T-16(v)1, 2 and A/F 37T-19(v)2, 3, Report No. 48L-95-027 dated 19 October 1995. 2.4AIR5026 - Test Cell Instrumentation. 2.5AIR5305 - Containment Safety Design Guide for Test Cells. 2.6Joint Report to Congress on the Environmental Protection Agency-Department of Transportat
21、ion Study of Nitrogen Oxide Emissions and Their Control From Uninstalled Aircraft Engines in Enclosed Test Cells, dated September 1994. 2.7Naval Air Test Center Facilities Operation and Evaluation Report, A/F 37T-19(v) 1 Turboprop Engine Test Facility, Futema, Japan, 13600 Ser. SY53J/100 dated 10 Ma
22、rch 194. 2.8Naval Air Warfare Center, Lakehurst, New Jersey, Design Data Report Acoustic Evaluation of NAS Brunswick, Maine, Report No. NAWCADLKE-DDR-487100-0004, dated 18 April 1997. Copyright SAE International Provided by IHS under license with SAELicensee=Defense Supply Ctr/5913977001 Not for Res
23、ale, 12/04/2007 19:18:58 MSTNo reproduction or networking permitted without license from IHS -,-,- SAE AIR5295 - 4 - 3.TECHNICAL BACKGROUND: Enclosed turboprop engine test cells in use today vary from modified reciprocating engine test cells, to simple open end shelters with adjoining control cab, t
24、o state-of-the-art facilities designed for current and future engine testing. These test cells are designed to either test turboprop engines connected to a dynamometer type load absorption device or engines with a propeller installed. Design considerations for test cells incorporating dynamometers a
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